Responsibilities of a trustee under the UK self-assessment system

The responsibilities of a trustee under the UK self-assessment system (for trusts, estates, or registered pension schemes) generally include the following key obligations, based on HMRC guidance for the 2024-2025 tax year. These apply to filing tax returns, calculating and paying tax, and maintaining compliance. Note that specific duties may vary depending on whether you’re a trustee of a general trust/estate (using form SA900) or a registered pension scheme (using form SA970), but the core principles are similar.

1. Keeping Records

  • By law, you must maintain accurate and complete records of all income, capital gains, expenses, and relevant financial transactions for the trust, estate, or pension scheme.
  • Examples include bank statements, building society interest certificates, dividend vouchers, accounts, and any documentation from professionals (e.g., investment managers).
  • Records must be kept for at least 6 years (or longer in some cases). Failure to do so can result in penalties.
  • Do not send records with the tax return unless requested, but be prepared to provide them during HMRC enquiries.

2. Completing and Filing the Tax Return

  • Determine if a tax return is required (e.g., even if no tax is due or the scheme isn’t taxable, you may still need to file).
  • Gather all necessary information and fill in the appropriate form accurately:
    • For trusts and estates: Use the Trust and Estate Tax Return (SA900), including any supplementary pages for specific income types (e.g., trade, foreign, capital gains).
    • For registered pension schemes: Use the Tax Return for Trustees of Registered Pension Schemes (SA970).
  • It’s your responsibility to ensure all relevant sections and supplementary pages are completed correctly—HMRC provides the main pages, but you must identify and include any additional ones needed.
  • File on time to avoid automatic penalties:
    • Paper returns: By 31 October 2025.
    • Online returns: By 31 January 2026.
  • If the trust or scheme uses an “accounts basis” (aligning with a 12-month accounting period ending in the tax year), apply it consistently; any change requires reverting to the statutory 6 April to 5 April basis without gaps in reporting.
  • Sign the declaration confirming the return is correct and complete to the best of your knowledge.

3. Calculating Tax

  • Calculate any Income Tax, Capital Gains Tax, or other liabilities (or request HMRC to do so by filing a paper return by 31 October 2025).
  • Use tools like the Tax Calculation Summary working sheet (for individuals or trusts) or the Trustees of Registered Pension Schemes Tax Calculation Guide (SA976) if applicable.
  • Account for reliefs, allowances, and deductions (e.g., personal allowances, Gift Aid, pension contributions).
  • For pension schemes, base calculations on income and gains; for trusts/estates, include non-savings income, savings, dividends, and gains in the correct tax bands.

4. Paying Tax and Managing Payments

  • Pay any tax due by 31 January 2026, including:
    • The balance of tax owed for 2024-2025.
    • First payment on account for 2025-2026 (if applicable, based on prior year’s liability).
  • If tax is paid late, interest and late payment penalties apply (e.g., 5% after 30 days, plus further penalties).
  • Make payments on account if the previous year’s tax liability was £1,000 or more (unless 80% or more was deducted at source).
  • For pension schemes, no tax may be due on certain income, but you must still report it.

5. Amending Errors and Responding to Enquiries

  • If you discover mistakes or changes after filing, notify HMRC promptly (preferably by letter with corrected figures) or submit an amended return to avoid penalties.
  • HMRC may enquire into the return within 12 months of receipt, checking figures against records or third-party data (e.g., banks).
  • You must cooperate by providing requested documents or explanations.

6. Avoiding Penalties and Compliance

  • Late filing incurs an automatic £100 penalty, even if no tax is due. Further penalties apply:
    • £10 per day after 3 months (up to £900).
    • Additional £300 or 5% of tax due (whichever is higher) after 6 and 12 months.
    • Up to 100% (or 200% for offshore matters) if information is deliberately withheld.
  • Ensure the return doesn’t result in periods “dropping out of account” due to changes in accounting basis.
  • If the trust or scheme isn’t required to file (e.g., not registered or no taxable activity), return the notice to file with an explanation.

Additional Notes

  • If you’re unsure, consult HMRC’s helpline (number on your tax return), the Pensions Helpline (0300 123 1079 for pension schemes), or a tax adviser.
  • For online filing, register with HMRC’s service and use compatible commercial software.
  • Specific rules apply if affected by things like Basis Period Reform or UK/Swiss Tax Cooperation Agreement withholding tax.
  • These responsibilities ensure compliance with the self-assessment system, where trustees (not HMRC) are primarily accountable for accurate reporting.

If this relates to a specific type of trust (e.g., pension scheme vs. general trust), provide more details for tailored advice. For full HMRC guidance, refer to gov.uk/self-assessment-tax-returns or the provided documents.

Criteria for Submitting a Self-Assessment Tax Return for Foreign Income Earned from Employment

In the UK, foreign employment income (earnings from work performed abroad) is generally taxable if you are a UK resident for tax purposes under the Statutory Residence Test (SRT). The key criteria for whether you must submit a Self Assessment (SA) tax return (form SA100 and relevant supplementary pages) for such income are outlined below, based on HMRC guidance for the 2024-25 tax year (6 April 2024 to 5 April 2025). These apply regardless of whether the income was remitted to the UK, unless you qualify for and claim the remittance basis (which typically requires non-UK domicile and use of form SA109).

1. Residency Status

  • UK Resident: You must report foreign employment income if you are UK resident (as determined by the SRT, considering factors like days spent in the UK, ties to the UK, and home/work circumstances). Worldwide income is taxable in the UK, so foreign earnings are included unless exempt under a Double Taxation Agreement (DTA) or other reliefs.
    • If you became or ceased UK resident during the year, split-year treatment may apply (via SA109), but reporting is still required if any portion is taxable.
  • Non-UK Resident: Foreign employment income is generally not taxable in the UK unless it relates to duties performed in the UK or is remitted here. However, if you have any UK-source income or gains, or if remittance basis applies, a return may still be needed.
  • If you are eligible for Overseas Workday Relief (OWR) – e.g., non-UK domiciled, recently returned to the UK, and employment duties partly abroad – unremitted foreign earnings may not be taxable, but you must still report via SA109 if claiming OWR.

2. Income Thresholds and Taxability

  • General Threshold for SA Return: You must file if you have any foreign income (including employment earnings) that is untaxed in the UK. There is no specific de minimis for foreign employment, but:
    • If total untaxed foreign income (all sources) exceeds £2,000 in the 2024-25 tax year, you must declare it.
    • For smaller amounts (£300 or less), you may avoid filing if foreign tax paid equals or exceeds the UK tax due (via informal arrangement with HMRC), but this is discretionary and not guaranteed. Contact HMRC to confirm.
  • Taxed Abroad: If foreign tax was withheld, you can claim Foreign Tax Credit Relief (FTCR) to avoid double taxation, but you must still report the income if it’s taxable in the UK.
  • DTA in Place: Check if a DTA exists with the foreign country (listed in SA106 notes, pages 3-5). DTAs may limit UK taxation or allow relief, but reporting is required to claim it.
  • Remittance Basis: If non-UK domiciled and claiming remittance basis (via SA109), only income remitted to the UK is taxable. You must file if remittances exceed thresholds or if claiming reliefs.
  • Exemptions: Income is exempt if covered by a DTA allocating taxing rights solely to the foreign country, or if it’s small and foreign tax matches UK liability. However, you must notify HMRC by 31 January 2026 if no return is needed to avoid penalties.

3. Other Triggers for Filing

  • You received a notice to file from HMRC.
  • The income pushes your total taxable income over £150,000, triggers High Income Child Benefit Charge, or involves other complexities (e.g., self-employment overlap, pensions, or capital gains).
  • You want to claim reliefs like FTCR, OWR, or split-year treatment.
  • Employer pays foreign tax on your behalf: This is treated as additional gross pay, requiring reporting.
  • If the income relates to UK duties while abroad (e.g., for a UK employer), it may be under UK PAYE, reducing the need for SA unless adjustments are needed.

4. When You Do Not Need to File

  • No foreign income, or it’s fully exempt under DTA and not remitted.
  • Small amounts (£300 or less) where foreign tax >= UK tax, and HMRC agrees informally (call 0300 200 3300 to check).
  • You’re non-resident and have no UK-taxable elements.
  • Use the online tool at www.gov.uk/check-if-you-need-tax-return to confirm.

If in doubt, consult a tax advisor, as incorrect non-filing can lead to penalties (up to 100% of tax due plus interest). File online by 31 January 2026 or paper by 31 October 2025 for HMRC to calculate tax if needed.

Foreign employment income is reported on the SA102 ‘Employment’ pages (one per job), with foreign tax details on SA106 ‘Foreign’ pages for FTCR. Use SA109 for residence/remittance issues.

Checklist of Documents, Evidence, Receipts, Dates, Invoices, and Forms Needed

When preparing and submitting a Self Assessment tax return for foreign employment income, you do not need to attach documents to the return itself (HMRC accepts the figures you provide). However, you must keep records for at least 6 years (or 22 months if self-employed) in case of enquiry. If filing on paper or if HMRC requests, you may need to provide evidence. Gather these to accurately complete the return and support claims like FTCR (which requires proof of foreign tax paid under local laws, including filing a foreign return if required).

Essential Forms

  • SA100: Main tax return form.
  • SA102: Employment pages (one per foreign employment; report gross income, benefits, expenses).
  • SA106: Foreign pages (for claiming FTCR on foreign tax paid; include country code, gross income, tax paid in GBP).
  • SA109: Residence, remittance basis etc. pages (if non-UK domiciled, claiming remittance basis, OWR, or split-year treatment).
  • Helpsheet HS263: Relief for foreign tax paid (working sheet for calculating FTCR if doing it yourself).
  • Helpsheet HS264: Remittance basis (if applicable).

Income and Payment Evidence

  • Payslips or wage statements from the foreign employer (showing gross pay, deductions, tax withheld, in foreign currency and dates paid).
  • Foreign equivalent of P60/P45 (end-of-year tax certificate, e.g., US W-2, German Lohnsteuerbescheinigung) detailing annual earnings, tax paid, and social security contributions.
  • Employment contract or offer letter (detailing salary, bonuses, benefits, duties location, and any tax equalization clauses).
  • Bank statements (showing receipt of salary, remittances to UK if on remittance basis, with transaction dates and amounts).
  • Invoices or receipts for any employment-related expenses claimed (e.g., travel, tools; must be allowable under UK rules).

Tax and Relief Evidence

  • Foreign tax withholding certificates or payment receipts (proof of tax paid abroad, including amounts and dates).
  • Copy of foreign tax return filed (if required for FTCR; shows all allowances/reliefs claimed to ensure ‘minimum’ tax paid).
  • Foreign tax assessment notice (from foreign tax authority, confirming final tax liability).
  • DTA reference (printout of relevant UK-foreign country DTA from www.gov.uk/government/collections/tax-treaties).
  • Exchange rate documentation (e.g., HMRC annual rates from www.gov.uk/government/publications/exchange-rates-for-customs-and-vat-yearly, or spot rates from OANDA/XE on payment/remittance dates; used to convert to GBP).

Residence and Other Supporting Evidence

  • Passport stamps, travel itineraries, or visa documents (to prove days spent in UK/abroad for SRT or split-year).
  • Proof of domicile (e.g., birth certificate, family ties documents if claiming non-UK domicile for remittance basis/OWR).
  • Records of remittances (e.g., wire transfer confirmations, dates, and amounts if on remittance basis).
  • Any correspondence with HMRC or foreign tax authorities (e.g., prior agreements on small income exemptions).

Keep all in organized files (digital or paper). If HMRC enquires, provide within 30 days. For complex cases (e.g., DTAs, OWR), consider professional help to avoid errors.

Criteria for Submitting a Self-Assessment Tax Return and Paying Tax on Capital Gains

In the UK, you must submit a self-assessment tax return (including the Capital Gains Tax summary pages, form SA108) if you meet specific criteria related to disposals of chargeable assets during the tax year (6 April 2024 to 5 April 2025). Capital Gains Tax (CGT) is payable if your chargeable gains exceed the annual exempt amount (£3,000 for this tax year) after deducting allowable losses and reliefs. However, even if no tax is due (e.g., due to losses or the annual exempt amount covering your gains), you may still need to report if the criteria below apply.

Key criteria from the Capital Gains Tax summary notes (SA108 Notes 2024-25):

  • You sold or otherwise disposed of chargeable assets (e.g., property, shares, cryptoassets, antiques worth over £6,000) worth more than £50,000 in total.
  • Your chargeable gains (before deducting any losses) exceeded the annual exempt amount of £3,000.
  • You have gains from an earlier tax year that become taxable in this period (e.g., deferred gains from rollover relief on wasting assets, remitted foreign gains, or gains from temporary non-residence).
  • You want to claim an allowable capital loss for the year or make a capital gains claim or election (e.g., Private Residence Relief, Business Asset Disposal Relief, or negligible value claim).
  • You are not domiciled in the UK and are claiming to pay tax on foreign gains using the remittance basis.
  • You are chargeable on the remittance basis and have remitted foreign chargeable gains from an earlier year.
  • You made a direct or indirect disposal of the whole or part of an interest in UK property or land while non-resident, or while UK resident but in the overseas part of a split tax year.

You do not need to fill in the Capital Gains Tax summary pages or pay CGT on:

  • Private cars.
  • Personal possessions (chattels) worth up to £6,000 each (e.g., jewellery, paintings, antiques).
  • Stocks and shares in tax-free accounts (e.g., ISAs, PEPs).
  • UK Government securities (e.g., gilts, National Savings Certificates, Premium Bonds).
  • Your main home if you qualify for full Private Residence Relief.
  • Betting, lottery, or pools winnings.
  • Compensation for personal injury or mis-sold PPI.
  • Foreign currency bought for personal or family use outside the UK.

If you are UK resident and disposed of UK residential property, you may also need to report and pay CGT within 60 days via a Capital Gains Tax on UK Property return (separate from self-assessment), but include details in your self-assessment too.

Self-assessment filing deadlines: Paper returns by 31 October 2025; online by 31 January 2026. CGT is paid as part of your overall tax liability by these dates (or earlier for in-year reporting on UK residential property).

How to Calculate CGT Liability

CGT liability is calculated based on your chargeable gains minus allowable losses, reliefs, and the annual exempt amount. Gains are categorized by asset type (e.g., residential property, carried interest, cryptoassets, other assets, listed/unlisted shares) and taxed at different rates depending on your income tax band and the disposal date. The tax calculation summary notes (SA110 Notes 2024-25) provide a working sheet for overall tax, including CGT in Section 18 (pages TCSN 44-46). The Capital Gains Tax summary notes emphasize preparing computations for each disposal and manual adjustments for rate changes.

Step 1: Identify Chargeable Assets and Disposals

  • Assets: Include stocks/shares, property/land, business assets, goodwill, antiques >£6,000, cryptoassets.
  • Disposals: Selling, gifting, transferring, exchanging, insurance payouts for damaged assets, or negligible value claims (even if you still own the asset). Part-disposals count (e.g., selling half an interest).
  • For connected persons (e.g., relatives, business partners), use market value instead of actual proceeds, and losses are “clogged” (only usable against gains to the same person).
  • Exclusions: As listed above under criteria.

Step 2: Compute Gains/Losses for Each Disposal

Use the working sheet on page CGN 15 of the Capital Gains notes for simple cases (not for options, part-disposals, or aggregated gains/losses). For each asset:

  • Gain = Disposal proceeds – Allowable costs.
    • Proceeds: Cash received, market value (if gifted or to connected persons), or value of exchanged assets. Use market value if not arm’s length.
    • Allowable costs: Purchase price (or market value at 31 March 1982 if owned then), improvement costs (reflected in the asset at disposal), incidental costs (e.g., Stamp Duty, legal fees).
  • Deduct any reliefs/claims (e.g., Private Residence Relief – code PRR; Business Asset Disposal Relief – code BAD; use the table in the notes for codes, entered in boxes 8, 20, 28, or 36).
  • Aggregate gains by category (e.g., residential property in boxes 3-6; crypto in 13.1-13.8; other assets in 14-22; listed shares in 23-30; unlisted in 31-44).
  • Deduct current-year losses (boxes 45-49) and brought-forward losses (box 47). Losses must be claimed to be allowable (not from tax avoidance schemes).
  • Subtract the annual exempt amount (£3,000) from total chargeable gains.

If you have gains from earlier years (e.g., remitted foreign gains, deferred corporate bond gains), include them in the relevant category.

Step 3: Allocate Gains to Tax Bands and Apply Rates

From the tax calculation summary notes (Section 18 worksheet):

  • Start with taxable gains after losses and annual exempt amount (e.g., from SA108 boxes like 6 for residential gains, 52.1 for non-resident, etc.).
  • Add any life policy gains (if applicable) to taxable/annualized amounts.
  • Determine available basic rate band: This is the unused portion of your basic rate band (£37,700 for non-Scottish residents; Scottish bands differ) after allocating income (non-savings, savings, dividends). Any unused band is applied to gains.
  • Apply rates in order (carried interest first, then residential property, then other gains):
    • Business Asset Disposal/Investors’ Relief qualifying gains: 10% flat rate.
    • Carried interest: 18% on amount in basic rate band; 28% above.
    • Residential property and carried interest (unchanged rates): 18% in basic rate band; 24% in higher/additional rate bands.
    • Other gains (e.g., shares, crypto):
      • Up to 29 October 2024: 10% in basic rate band; 20% above.
      • From 30 October 2024: 18% in basic rate band; 24% above.
    • Manual adjustment: The automatic calculation doesn’t account for the rate increase from 30 October 2024; add extra liability in SA108 box 51.
  • Deduct Deficiency Relief (if applicable, from life policy terminations).
  • Add CGT adjustments (e.g., additional liability from trusts in box 52).
  • Subtract Foreign Tax Credit Relief (box 53a, limited to UK CGT due).
  • Subtract tax already paid (e.g., on non-resident CGT in box 52.4; Real Time Transaction gains in boxes 10+12+13.8+22+30+38).
  • Final CGT due = Revised CGT charged minus credits/payments (if overpaid, it’s repayable or non-repayable based on calculations).

Incorporate into overall tax liability (Section 11 of tax calculation worksheet): Add to Income Tax/NICs, then subtract payments on account.

For complex cases (e.g., remittance basis, non-residents), consult the notes or a adviser. Use the full working sheet in SA110 notes for integration with income tax.

Example (Simplified)

  • Disposal proceeds: £60,000.
  • Allowable costs: £40,000.
  • Gain: £20,000.
  • Deduct losses: £5,000 → Chargeable gain £15,000.
  • Deduct annual exempt: £3,000 → Taxable £12,000.
  • If other gain post-30 Oct 2024 and all in basic rate band: £12,000 × 18% = £2,160 due.

Checklist of Documents, Evidence, Receipts, Dates, Invoices, and Forms to Accompany a Tax Return Recording Capital Gains

When submitting your self-assessment tax return with CGT, attach (or upload online) supporting computations and evidence. Do not write “see attached” in form boxes—enter figures directly. From the Capital Gains Tax summary notes:

  • Computations/Working Sheets: Detailed calculations for each disposal (use CGN 15 sheet for simple ones; separate for each asset/type). Include gains/losses, proceeds, costs, reliefs/claims.
  • Valuations: Evidence of market value (e.g., professional valuation reports) if used instead of actual proceeds/costs (e.g., gifts, connected persons, assets owned pre-31 March 1982).
  • Purchase/Sale Documents: Contracts, deeds, or settlement statements showing acquisition/disposal dates and prices (essential for all disposals).
  • Receipts/Invoices for Allowable Costs: Proof of purchase price, improvement costs (e.g., builder invoices reflecting enhancements), incidental costs (e.g., legal/surveyor fees, Stamp Duty receipts).
  • Dates: Records of acquisition date, disposal date, and any relevant events (e.g., insurance claim dates, remittance dates for foreign gains).
  • Loss Records: Details of allowable losses claimed, including clogged losses from connected persons (keep separate records for carry-forward).
  • Relief/Claim Forms: Specified forms for claims/elections (e.g., negligible value claim form; codes like PRR/LET in box 54 with full details).
  • Prior Returns Evidence: Copies of Capital Gains Tax on UK Property or Real Time Transaction returns (include gains/losses in SA108; tax paid in adjustments).
  • Foreign Gains Evidence: Remittance proofs (e.g., bank statements) if on remittance basis.
  • Other: Crypto transaction logs; insurance payout statements; evidence for non-resident disposals (e.g., residency status docs).

Retain originals for 22 months (individuals) or 5 years (businesses) post-filing for audits. If claiming reliefs like Business Asset Disposal Relief, include eligibility proofs (e.g., business ownership docs).

Guidance on Class 1A National Insurance Contributions for Employment Income

Class 1A National Insurance Contributions (NIC) are payable solely by employers, not employees, and apply only to certain taxable benefits in kind provided to employees through direct employment. For the 2025/26 tax year (6 April 2025 to 5 April 2026), focusing exclusively on direct employment income-related benefits (e.g., company cars, fuel, private medical insurance, accommodation, but excluding cash payments or non-benefit income), an employer is liable if the following criteria are met:

  • Provision of Taxable Benefits: The employer must provide benefits that are taxable on the employee under Income Tax rules, such as most expenses and benefits not exempted (e.g., non-cash vouchers, credit tokens, living accommodation, or assets transferred). Liability does not apply to benefits that are exempt (e.g., certain pensions advice or trivial benefits under £50).
  • Employment Relationship: The benefits must be provided to an employee (including directors) or their family/household due to the employment. This excludes self-employed individuals or non-employees.
  • No Employee Contribution Required: Employees do not pay or report Class 1A NIC; it’s an employer obligation calculated on the cash equivalent value of the benefit (as reported on form P11D).
  • UK Tax Jurisdiction: The employer must be UK-based or have UK employees, with benefits treated as UK-sourced. Special rules apply for cross-border work.

If these criteria are satisfied, the employer pays Class 1A NIC at a flat rate of 15% on the taxable value of the benefits. Payment is due annually by 22 July 2026 (electronic) or 19 July 2026 (postal) following the tax year, via form P11D(b). Employees may see these benefits affect their Income Tax via PAYE or Self-Assessment, but not NIC directly.

Class 1A National Insurance Contributions (NIC) are payable solely by employers, not employees, and apply only to certain taxable benefits in kind provided to employees through direct employment. For the 2025/26 tax year (6 April 2025 to 5 April 2026), focusing exclusively on direct employment income-related benefits (e.g., company cars, fuel, private medical insurance, accommodation, but excluding cash payments or non-benefit income), an employer is liable if the following criteria are met:

  • Provision of Taxable Benefits: The employer must provide benefits that are taxable on the employee under Income Tax rules, such as most expenses and benefits not exempted (e.g., non-cash vouchers, credit tokens, living accommodation, or assets transferred). Liability does not apply to benefits that are exempt (e.g., certain pensions advice or trivial benefits under £50).
  • Employment Relationship: The benefits must be provided to an employee (including directors) or their family/household due to the employment. This excludes self-employed individuals or non-employees.
  • No Employee Contribution Required: Employees do not pay or report Class 1A NIC; it’s an employer obligation calculated on the cash equivalent value of the benefit (as reported on form P11D).
  • UK Tax Jurisdiction: The employer must be UK-based or have UK employees, with benefits treated as UK-sourced. Special rules apply for cross-border work.

If these criteria are satisfied, the employer pays Class 1A NIC at a flat rate of 15% on the taxable value of the benefits. Payment is due annually by 22 July 2026 (electronic) or 19 July 2026 (postal) following the tax year, via form P11D(b). Employees may see these benefits affect their Income Tax via PAYE or Self-Assessment, but not NIC directly.

Information to Enter in Each Relevant Box on the Tax Return

Employees do not report Class 1A NIC directly on their Self-Assessment tax return, as it’s an employer payment. Instead, the SA102 (Employment supplementary page) requires details of benefits that trigger Class 1A, if not payrolled or adjusted via PAYE. Use a separate SA102 per employment. Below are the relevant boxes on SA102 where benefit information must be entered (other boxes like pay/tax are for core income; Class 1A is not input but derived from these):

  • Box 9: Company cars and vans – Enter the cash equivalent value (from P11D box 9, if not payrolled). This attracts Class 1A at 15% for the employer.
  • Box 10: Fuel for company cars and vans – Enter the cash equivalent or amount foregone (from P11D box 10, if not payrolled).
  • Box 11: Private medical and dental insurance – Enter the value (from P11D box 11, if not payrolled).
  • Box 12: Vouchers, credit cards and excess mileage allowance – Enter values (from P11D box 12, if not payrolled; e.g., non-exempt vouchers).
  • Box 13: Goods and other assets provided by your employer – Enter market value (from P11D box 13, if not payrolled).
  • Box 14: Accommodation provided by your employer – Enter cash equivalent (from P11D box 14, if not payrolled).
  • Box 15: Other benefits (including interest-free and low interest loans) – Enter total value (from P11D box 15, if not payrolled; e.g., loans over £10,000).
  • Box 16: Expenses payments received and balancing charges – Enter amounts (from P11D box 16, if not payrolled; may include reimbursed expenses treated as benefits).

HMRC calculates Income Tax on these for the employee and uses P11D data for employer Class 1A. If payrolled, these boxes may be zero or adjusted.

Checklist of Documents, Evidences, Receipts, Invoices, and Forms

Based solely on the referenced HMRC documents for employment income in Self-Assessment:

  • P45 (‘Details of employee leaving work’)
  • P60 (‘End of Year Certificate’)
  • P11D (‘Expenses and benefits’)

Self-Assessment Tax Guidance for Furnished Holiday Lettings


Furnished Holiday Lettings (FHL) referred to a specific category of short-term rental properties in the UK or European Economic Area (EEA) that qualified for advantageous tax treatment under UK tax rules. These were commercially let, fully furnished holiday accommodations, such as cottages, apartments, or houses, intended for short-term stays by tourists or visitors. The regime was designed to support the holiday letting sector by treating FHL income more like trading income in certain respects, rather than standard rental income. However, as of 6 April 2025 (for Income Tax) and 1 April 2025 (for Corporation Tax), the FHL regime has been abolished, meaning these properties are now taxed under the same rules as other residential or property rentals.

The rules outlined below primarily apply to the 2024-25 tax year (6 April 2024 to 5 April 2025), the last year the regime was in effect. For tax years starting from April 2025 onward, including the current 2025-26 tax year, FHL properties are integrated into a taxpayer’s general UK or overseas property business.

Qualifying Criteria
To qualify as an FHL in the 2024-25 tax year, a property had to meet strict conditions:

  • Location: The property must have been in the UK or EEA (including Iceland, Liechtenstein, and Norway). UK and EEA FHLs were treated as separate businesses for tax purposes.
  • Furnishing: It needed to be fully furnished with sufficient items (e.g., beds, tables, kitchen equipment) for normal occupation, and tenants must have been entitled to use them.
  • Commercial Intent: The letting must have been on a commercial basis with the aim of making a profit. Even if no profit was made (e.g., due to off-season lettings to cover costs), it could still qualify if the intent was commercial.
  • Occupancy Thresholds (all three must be met in the tax year):
    • Availability Threshold: The property must have been available for commercial holiday letting to the public for at least 210 days (excluding days of personal use by the owner).
    • Letting Threshold: It must have been actually let as holiday accommodation for at least 105 days (excluding longer-term lets over 31 continuous days, or lets to friends/family at reduced or zero rates).
    • Pattern of Occupation Threshold: The total period of longer-term lets (over 31 continuous days) must not have exceeded 155 days.
  • Elections for Flexibility:
    • Averaging Election: If you had multiple properties, you could average the letting days across them to meet the 105-day threshold (deadline: 31 January 2027 for 2024-25).
    • Period of Grace Election: Allowed up to two consecutive years of grace if you genuinely intended to meet the letting threshold but failed (e.g., due to unforeseen circumstances), provided it qualified in the prior year.
  • Apportionment: If the property was only partly used for FHL or had private use, income and expenses were apportioned accordingly.

Properties like caravans or houseboats could qualify if they met the criteria. All UK FHLs were combined into one business, and all EEA FHLs into another, with no offsetting of losses between them.

If a property ceased to qualify (e.g., due to sale, private use, or failing thresholds), the special treatment ended, potentially triggering balancing allowances or charges on capital assets.

Tax Advantages and Rules Under the FHL Regime

The FHL regime provided several benefits not available to standard buy-to-let properties, treating the income more favorably:

  • Income Tax Treatment:
    • Profits were calculated separately from other property income.
    • Full deduction of loan interest and finance costs (no restriction to basic rate, unlike non-FHL residential lets).
    • Losses could only be carried forward and offset against future FHL profits in the same business (UK or EEA).
  • Capital Allowances: You could claim plant and machinery allowances for items like furniture, fixtures, equipment, and vehicles (e.g., 100% first-year allowances for zero-emission cars or electric charge-points). Balancing charges applied on disposals if proceeds exceeded the tax value.
  • Capital Gains Tax (CGT) Reliefs: Treated as a trading business, qualifying for:
    • Business Asset Disposal Relief (BADR) – reduced CGT rate to 10%.
    • Rollover Relief – defer CGT on gains reinvested in new assets.
    • Gift Relief – defer CGT on gifts of business assets.
    • Relief for loans to traders.
    • Exemptions for disposals by companies with substantial shareholdings.
  • Pension Contributions: FHL profits counted as “relevant UK earnings” for calculating maximum pension relief.
  • Other Rules:
    • Cash basis or traditional accounting could be used (consistent with other property income).
    • Property Income Allowance (up to £1,000) was available if total property income exceeded £1,000, but claiming it meant no expense deductions.
    • Non-resident landlords reported gross income and claimed back tax deducted under the scheme.

These advantages were intended to encourage investment in holiday accommodations but were seen as distorting the property market.

Reporting in Tax Returns

For the 2024-25 tax year:

  • Use the “UK Property” pages (SA105) of the Self Assessment tax return.
  • Report FHL income separately (e.g., Box 5 for total income, Boxes 6-12 for expenses like repairs, loan interest, professional fees, and capital allowances).
  • Copy profits to the main tax return (e.g., as non-savings income in tax calculation).
  • Elections (averaging or period of grace) were made via the return or separately by the deadline.
  • If using the tax calculation summary (SA110), FHL fed into non-savings income sections.

Deadlines: Paper returns by 31 October 2025; online by 31 January 2026.

Abolition of the Regime and Current Status

The FHL regime was abolished to create a fairer tax system by removing tax advantages for holiday let owners compared to other landlords. It was announced in the Spring Budget 2024 and took effect from 6 April 2025 for Income Tax (and 1 April 2025 for Corporation Tax).

  • Reasons: The regime, introduced in 1984, gave undue benefits in finance costs, capital allowances, CGT reliefs, and pension contributions, potentially distorting the housing market (e.g., favoring short-term holiday lets over long-term rentals).
  • Impacts:
    • All former FHL properties are now part of your general UK or overseas property business.
    • Finance costs (e.g., loan interest) are restricted to basic rate relief for residential properties.
    • No access to trader-style CGT reliefs (e.g., no BADR at 10%; standard CGT rates apply: 18%/24% for residential property gains).
    • Profits no longer count as earnings for pension relief.
    • Simplified reporting: No separate FHL calculations, potentially reducing admin burden.
  • Transitional Arrangements:
    • Losses: Existing FHL losses can be carried forward and offset against future general property business profits (broader than before).
    • Capital Allowances: Continue writing-down allowances on existing pools; new expenditure (from April 2025) qualifies for “replacement of domestic items relief” instead (deduction for replacing furnishings, no initial purchases).
    • CGT Reliefs: If a business ceased before abolition and met FHL conditions, reliefs like BADR may still apply to disposals within 3 years post-cessation. Pre-abolition relief claims are not disturbed.
  • Anti-Forestalling Measures: From 6 March 2024, rules prevent exploiting the regime via unconditional contracts (e.g., artificial transfers to crystallize gains under old CGT reliefs).
  • Post-Abolition Treatment: Income and gains are reported as standard property income. For 2025-26 onward, use the same boxes in SA105 but without FHL separation. Expect higher tax bills for many owners due to lost reliefs.
  • Guidance and Further Info: See HMRC’s policy paper for details. Contact HMRC at robert.nott@hmrc.gov.uk or 03000 537413. No formal consultation occurred; impacts were assessed in Budget documents.

If you’re dealing with a property in the 2024-25 tax year, refer to the old rules for your return. For current or future years, consult a tax adviser, as the changes could affect profitability—e.g., higher CGT on sales or restricted interest deductions.

UK Property Income Tax Returns: What Landlords Need to Know

Where UK property is a source of rental or other income, the taxpayer is liable for self-assessment (i.e., must file a tax return) if their situation meets any of the following criteria:

  • Total property income exceeds £1,000: This includes all UK rental income, receipts from land or property, furnished holiday lettings (FHL) in the UK or EEA (unless remittance basis applies), furnished rooms in your home, lease premiums, or reverse premiums. Income up to £1,000 qualifies for the property income allowance and is exempt from tax and reporting. If over £1,000, you must report it unless you qualify for an exemption (e.g., Rent a Room relief up to £7,500/£3,750 if joint).
  • Claiming the property income allowance but income exceeds £1,000: You must file to claim the allowance (up to £1,000 total across all property businesses, including foreign). You cannot claim if income is from a connected party (e.g., relative or employer).
  • Claiming Rent a Room relief where income exceeds £7,500 (£3,750 if joint): If letting furnished rooms in your home and income exceeds the threshold, you must file and either pay tax on the excess or calculate profit after expenses.
  • Non-resident landlord status: Even if income is below thresholds, you must file if claiming back tax deducted under the non-resident landlord scheme.
  • Claiming reliefs, allowances, or losses: This includes:
    • Deducting allowable expenses or capital allowances (e.g., if expenses > turnover, to claim losses against future income).
    • Foreign Tax Credit Relief on EEA FHL foreign tax.
    • Relief for finance costs on residential properties.
    • Carrying forward losses from prior years.
    • Capital allowances (e.g., Annual Investment Allowance, Structures and Buildings Allowance).
    • Period of grace election for FHL properties not meeting qualification days.
  • Property business involves partnerships or joint ownership: If property is let jointly and you need to declare your share (or use Form 17 for unequal shares), or if income is from a partnership property business.
  • Accounting period changes or transitional adjustments: If switching between cash basis and traditional accounting, requiring adjustments for transitional receipts/expenses.
  • Participation in Managing Serious Defaulters (MSD) programme: Requires full reporting, including profit/loss accounts and balance sheets.
  • Income from specific sources requiring separation: E.g., FHL must be separated for special rules (capital allowances, reliefs); EEA FHL if not on remittance basis.
  • No expectation of future income but cessation in year: If all property income ceased and no future income expected, you may still need to file to confirm.

If you believe you do not need to file (e.g., income ≤ £1,000 or fully exempt under allowances), you must notify HMRC by 31 January 2026 to avoid penalties. Use the online checker at www.gov.uk/check-if-you-need-a-tax-return. Filing deadlines: Paper return by 31 October 2025; online by 31 January 2026.

Note: These criteria assume no other income sources (e.g., employment, self-employment). If other income exists, broader self-assessment rules apply. Property income from overseas (non-EEA FHL) goes in the ‘Foreign’ pages, but total property income (UK + foreign) determines allowance thresholds.

Information Required for Each Box in the Tax Return (UK Property Pages – SA105)

The UK property pages (SA105) are the specific section of the tax return for reporting UK property income. The boxes are divided into UK FHL (furnished holiday lettings) and other UK property income. You must complete relevant boxes based on your income type. If only UK property income triggers self-assessment, focus on these; copy figures to main return (e.g., TR3) as needed. All figures are in £ (pounds sterling), rounded to nearest pound; negative figures (losses) are entered without minus sign where specified.

Always include your full name and Unique Taxpayer Reference (UTR) at the top.

UK Property Details (Applies to All)

  • Box 3: Put ‘X’ if any income is from property let jointly (e.g., with spouse/partner). Only report your share of income/expenses; use Form 17 if unequal shares.
  • Box 4: Put ‘X’ if claiming Rent a Room relief and total rents ≤ £7,500 (£3,750 if joint). No need to complete rest if this is your only letting income.

Furnished Holiday Lettings (FHL) in UK or EEA

Complete if property qualifies (available 210+ days, let 105+ days as holiday accommodation).

  • Box 5: Total income from all FHL (including services to tenants; gross if non-resident). Use cash basis receipts if applicable.
  • Box 5.1: Amount of property income allowance claimed (≤ £1,000 total across all properties; cannot exceed income or claim expenses/allowances).
  • Box 5.2: Put ‘X’ if using traditional accounting (not cash basis). Must match basis for other UK property.
  • Box 6: Rent paid, repairs, insurance, costs of services (e.g., wages, rates, maintenance).
  • Box 7: Loan interest and other financial costs (proportion for FHL; no capital repayments).
  • Box 8: Legal, management, and professional fees (e.g., agent fees, lease renewal <50 years; exclude first letting >1 year).
  • Box 9: Other allowable expenses (e.g., stationery, travel, foreign tax on EEA FHL unless claiming credit; total expenses if income <£90,000).
  • Box 10: Private use adjustment (non-business portion of expenses in boxes 6-9).
  • Box 11: Balancing charges (tax on difference if sale proceeds > pool value of assets).
  • Box 11.1: Electric charge-point allowance (100% first-year for new/unused charge-points).
  • Box 11.2: Zero-emission car allowance (100% first-year for new/unused electric/zero-emission cars; reduce for non-business use).
  • Box 12: Other capital allowances (e.g., equipment/vehicles; exclude if claiming allowance or cash basis except cars).
  • Box 13: Taxable profit for FHL (calculated via working sheet: income + adjustments + charges – expenses/allowances).
  • Box 14: Loss brought forward used against this year’s FHL profits (≤ box 13; include non-FHL property losses).
  • Box 15: Taxable profit for the year (box 13 minus box 14).
  • Box 16: Loss from FHL (from working sheet if negative).
  • Box 17: Total loss to carry forward (unused losses from this/prior years).
  • Box 18: Put ‘X’ if business is in EEA (separate pages if both UK and EEA).
  • Box 19: Put ‘X’ if making period of grace election (for properties qualifying in prior year but not this year).

Other UK Property Income (Non-FHL)

  • Box 20: Total rents and other income (e.g., tenancy, leasing, tips on land, grants; exclude FHL; gross if non-resident).
  • Box 20.1: Amount of property income allowance claimed (≤ £1,000 total; cannot claim expenses/allowances).
  • Box 20.2: Put ‘X’ if using traditional accounting (not cash basis). Must match basis for FHL if applicable.
  • Box 21: Tax taken off income in box 20 (non-resident landlords only).
  • Box 22: Premiums for grant of lease (income portion for leases ≤50 years; from working sheet).
  • Box 23: Reverse premiums and inducements (payments/benefits to take property interest).
  • Box 24: Rent, rates, insurance, ground rents (e.g., business rates, contents insurance).
  • Box 25: Property repairs and maintenance (e.g., painting, roof repairs, furniture fixes).
  • Box 26: Non-residential property finance costs (full loan interest for non-residential; exclude residential – use box 44).
  • Box 27: Legal, management, other professional fees (e.g., agent fees, eviction costs; exclude planning fees).
  • Box 28: Costs of services provided (e.g., gardening, cleaning wages).
  • Box 29: Other allowable expenses (e.g., stationery, travel, irrecoverable debts if not cash basis; total if income <£90,000).
  • Box 30: Private use adjustment (non-business portion of boxes 24-29).
  • Box 31: Balancing charges (as above).
  • Box 32: Annual Investment Allowance (AIA; up to max for equipment, not cars/dwelling items).
  • Box 33: Structures and Buildings Allowance (SBA; claim amount; record details in ‘Any other information’ if first claim).
  • Box 33.1: Electric charge-point allowance (100% first-year).
  • Box 33.2: Freeport/Investment Zones SBA (enhanced; record details in ‘Any other information’ if first claim).
  • Box 34: Zero-emission goods vehicle allowance (100% first-year; reduce for non-business use).
  • Box 34.1: Zero-emission car allowance (100% first-year; reduce for non-business use).
  • Box 35: All other capital allowances (e.g., 18%/6% WDA; fixtures via s198 election).
  • Box 36: Costs of replacing domestic items (residential non-FHL; replacement only, not initial; limit if improvement).
  • Box 37: Rent a Room exempt amount (£7,500 or £3,750 if joint; cannot claim expenses/allowances).
  • Box 38: Taxable profit (from working sheet: income + adjustments + charges – expenses/allowances/exemptions).
  • Box 39: Loss brought forward used against this year’s profits (≤ box 38; from prior box 43).
  • Box 41: Loss from property (from working sheet if negative; can offset against FHL profits).
  • Box 42: Loss set off against 2024-25 total income (limited to agricultural expenses/capital allowances; cap at £50,000 or 25% adjusted income).
  • Box 43: Loss to carry forward (unused from box 41/prior years).
  • Box 44: Residential property finance costs (loan interest/alternative finance; used for tax reduction).
  • Box 45: Unused residential finance costs brought forward (from prior years).

If property income is from a partnership, use ‘Partnership (full)’ pages instead. For tax calculation (SA110), property income feeds into non-savings income (e.g., A28/A29 for profits, M1/M2 for finance costs relief), but these are not direct tax return boxes for property.

Checklist of Documents, Evidence, Receipts, Dates, Invoices, and Forms Needed

To submit a tax return for UK property income, maintain records for 5-6 years (22 months if no enquiry). Here’s a comprehensive checklist based on SA105 and SA110 notes:

  • Income Records:
    • Tenancy/leasing agreements (dates, terms, premiums paid/received).
    • Rent receipts/invoices (dates, amounts received, payer details).
    • Bank statements showing rental deposits (including services, grants, tips, reverse premiums).
    • Records of cash receipts if cash basis (dates, amounts).
    • Non-resident landlord scheme statements (tax deducted).
  • Expense Records:
    • Invoices/receipts for repairs, maintenance, insurance, rates, ground rents (dates, amounts, suppliers).
    • Loan statements/invoices for interest/finance costs (dates, amounts; separate residential/non-residential).
    • Professional fees invoices (e.g., agents, legal; dates, descriptions).
    • Service cost receipts (e.g., wages, gardening; payroll if employees).
    • Travel expense logs (mileage, dates, purpose; flat rate if applicable).
    • Other expense receipts (e.g., stationery, phone bills apportioned for business use).
  • Allowance/Relief Evidence:
    • Purchase invoices for capital items (e.g., charge-points, zero-emission vehicles; dates, costs, proof of new/unused).
    • SBA/Freeport details (construction contracts, first use dates, expenditure amounts, locations).
    • Replacement domestic items receipts (old/new costs, proof no improvement).
    • Loss records from prior years (prior tax returns, calculations).
    • Agricultural expense details if claiming offset.
  • Adjustments and Elections:
    • Private use logs (dates/periods of non-business use).
    • Balancing event records (sale proceeds, asset values, dates).
    • Transitional adjustment calculations (if changing basis; receipts/expenses affected).
    • Section 198 election (joint agreement on fixture values; within 2 years of transfer).
    • Period of grace election details (prior year qualification proof).
  • Accounts and Computations:
    • Profit/loss account, balance sheet (mandatory if MSD; otherwise recommended).
    • Working sheets for profits/losses, premiums, adjustments (as in notes).
    • Accounting period details (if not 6 Apr-5 Apr; apportionment calculations).
  • Forms and Declarations:
    • Form 17 (Declaration of beneficial interests in joint property; if unequal shares).
    • Tax return forms (SA105 for property, SA110 if calculating tax yourself).
    • ‘Any other information’ notes (e.g., SBA first claim details, unrecorded figures if MSD).
  • Other Evidence:
    • FHL qualification logs (availability/letting days, bookings, dates).
    • Rent a Room records (income dates, proof of furnished rooms in home).
    • Foreign tax receipts (EEA FHL; if claiming credit).
    • MSD confirmation (if applicable; additional reporting).

Keep digital/physical copies; HMRC may request during enquiries. If no records for figures, declare in return. Consult adviser if complex (e.g., cash basis switch)

HMRC’s Basis Period Reform: understanding and calculating transition profits

Transition profits (also called “transition part profits”) arise from the UK government’s Basis Period Reform, which changed how self-employed individuals and partners in partnerships calculate their taxable profits for Income Tax. Before the reform, businesses could base their taxable profits on accounting periods that didn’t align with the UK tax year (6 April to 5 April). The reform mandates that, from the 2024-25 tax year onward, all unincorporated businesses (sole traders and partnerships) must use a “tax year basis” for taxing profits—meaning profits are taxed based on what arises in the tax year itself, regardless of the accounting date.

The 2023-24 tax year was the “transitional year” where businesses with non-aligned accounting dates had an extended basis period (potentially longer than 12 months). This extension created “transition profits”: the extra profits in the extended period that wouldn’t have been taxed under the old rules. These profits are taxed separately over multiple years to spread the burden.

Eligibility

  • Applies to self-employed sole traders and partners in partnerships (including LLPs) who:
    • Started their business or joined the partnership before 6 April 2023.
    • Had an accounting year-end date not falling on or between 31 March and 5 April (i.e., not aligned with the tax year).
  • Does not apply if:
    • Your accounting date was already aligned.
    • You started business after 5 April 2023.
    • It’s non-trading income (e.g., property or investment income in partnerships).
  • For partnerships: Only trading or professional profits are affected. Each partner’s share is calculated individually based on the Partnership Statement from the partnership’s tax return (SA850). If you joined before 6 April 2022, you’re likely affected.

If you’re unsure, check HMRC Helpsheet HS222 (“How to calculate your taxable profits”) or use HMRC’s online transition profit calculator (not available for complex cases like multiple accounting periods or partnerships with non-trading income).

Step-by-Step Calculation of Transition Profits

Transition profits are calculated once in the 2023-24 tax year (the transitional year). You don’t recalculate them annually; you just spread the remaining amount. Use Working Sheet 3 from HS222 or the HMRC guidance for this.

  1. Identify the Basis Period for 2023-24:
    • The basis period runs from the day after your 2022-23 basis period ended until 5 April 2024 (or your accounting date in 2023-24 if it’s between 31 March and 4 April 2024).
    • Split into:
      • Standard part: The first 12 months (equivalent to a normal basis period).
      • Transition part: The remaining period after the standard part, up to 5 April 2024 (this creates the “extra” profits).
  2. Apportion Profits from Your Accounts:
    • Use your business accounts that overlap the standard and transition parts.
    • Apportion profits proportionally:
      • By days (recommended for accuracy): Profit in part = Total accounting period profit × (Days in part ÷ Total days in accounting period).
        • Include leap day (29 February 2024) if applicable.
      • By months or weeks: If days are impractical, but must be consistent.
    • Adjust for allowable expenses, capital allowances, and other tax adjustments (e.g., private use) as normal.
    • For partnerships: Use the partnership’s overall profits, then apply your profit-sharing ratio to get your share.
  3. Calculate Gross Transition Profits:
    • Sum the apportioned profits for the transition part.
    • Deduct any losses from the standard part (these offset the transition profits first).
  4. Deduct Overlap Relief:
    • Overlap relief is any previously “doubled-up” profits from earlier years (e.g., when you started business or changed accounting dates).
    • Deduct it fully from the transition profits (it can’t be carried forward beyond 2023-24).
    • If unknown, estimate provisionally and amend your return later.
    • Formula: Transition profits = (Apportioned transition part profits – Standard part losses) – Overlap relief.
    • If this results in a negative (loss), no transition profits arise, and the loss can be carried forward as usual.

Example Calculation (from HMRC Guidance)

  • Your accounting period: 1 October 2022 to 30 September 2023 (profit £45,000); 1 October 2023 to 30 September 2024 (profit £75,000).
  • Standard part: 1 October 2022 to 30 September 2023 = £45,000 (all from first accounts).
  • Transition part: 1 October 2023 to 5 April 2024 (188 days out of 366 in second accounts) = £75,000 × (188 ÷ 366) ≈ £38,525.
  • Assume overlap relief: £10,000.
  • No standard losses.
  • Transition profits = £38,525 – £10,000 = £28,525.
  • For a partnership: If your share is 50%, your transition profits = £14,262.50.

Another example (monthly apportionment):

  • Accounts: 1 January 2023 to 31 December 2023 (£50,000 profit); 1 January 2024 to 31 December 2024 (£15,000 profit).
  • Standard part: Full first accounts = £50,000.
  • Transition part: 1 January 2024 to 5 April 2024 (3/12 months) = £15,000 × (3 ÷ 12) = £3,750.
  • Overlap relief: £1,000.
  • Transition profits = £3,750 – £1,000 = £2,750.

Spreading Transition Profits for Taxation

  • Total transition profits are spread over 5 tax years (2023-24 to 2027-28) to avoid a large one-off tax bill.
  • Minimum in 2023-24: At least 20% of the total transition profits (after losses and overlap relief).
  • Remaining amount: Spread equally over the next 4 years (2024-25 to 2027-28), i.e., one-quarter of the remaining each year.
    • If no acceleration in 2023-24: 20% in 2023-24, then 20% of original each subsequent year (since remaining 80% ÷ 4 = 20%).
    • HMRC phrases it as “25% of the remaining transition profits” for 2024-25 onward, but this means one-quarter of the untaxed remainder at that point (ensuring equal spread).
  • If the business ceases before 2027-28, the full remaining amount is taxed in the cessation year.
  • For partnerships: Report your share in Box 16.3 (SA104F full pages) or equivalent. Do not include in Box 9 (basis period adjustment).
  • Losses: Brought-forward losses from earlier years can offset the spread amount each year (up to the spread for that year—Box 16.4 in SA104F). Current-year losses cannot offset transition profits.
  • Averaging (e.g., for farmers/artists): Transition profits are excluded from averaging claims.

Acceleration Options

  • You can elect to accelerate taxation of more than the minimum in any year (e.g., to use allowances or lower tax rates).
  • How: Enter the higher amount (e.g., standard spread + accelerated) in Box 16.3 (partnerships) or equivalent on your Self Assessment return. Provide full details (including accelerated amount) in the “Any other information” box (page TR 7).
  • This reduces the spread in future years proportionally.
  • No reversal once elected.
  • Mandatory acceleration if business ceases early.

For 2024-25 Specifically

  • This is the second year of spreading.
  • Enter 25% of the remaining untaxed transition profits (after 2023-24 amount) in Box 16.3 (SA104F) or calculate via HS222 Working Sheet.
  • If you accelerated in 2023-24, adjust the remaining downward.
  • Partnerships: Use the latest Partnership Statement; if multiple, adjust in Box 9 but exclude transition profits there.
  • If no transition profits were taxed in 2023-24 (e.g., due to losses), spread the full amount over 4 years at 25% each.

How Transition Profits Affect Your Overall Tax Calculation

From the Tax Calculation Summary (SA110 notes):

  • Transition profits are added to your non-savings income (e.g., Box A43 in the working sheet) as a separate charge.
  • To calculate the tax due on them:
    1. Run the full tax calculation worksheet (Sections 1-12) with the transition amount included in non-savings income (up to Box A240—total tax due).
    2. Run it again without the transition amount (get a second A240 figure).
    3. The difference between the two A240 figures is the tax due on the transition profits.
  • This ensures the tax is calculated at your marginal rate, after allowances and other income.
  • Copy to the relevant boxes on SA110 and add to your total tax liability.

Key Tips and Resources

  • Keep records of your calculation, spread amounts, and elections for future returns (amendable up to 12 months after filing).
  • Provisional figures: Allowed if disputing or estimating (e.g., overlap); mark on return and amend by 31 January 2027 for 2024-25.
  • Penalties: Inaccurate reporting can lead to penalties (30-100% of tax due).
  • Further help: HMRC Helpsheet HS222 (includes Working Sheets); HS227 for losses. Search gov.uk for “basis period reform” or use the online calculator. For partnerships, refer to SA104F/S notes and SA850 guidance.
  • If complex (e.g., multiple periods), consult a tax advisor—HMRC won’t calculate for you if you miss deadlines (paper by 31 Oct 2025; online by 31 Jan 2026 for 2024-25).

Guidance on Self-Assessment Liability for a Partnership

A taxpayer must file a Self-Assessment (SA) tax return if they are a partner in a partnership and meet any of the following criteria related to partnership income:

  • Income from Partnership: If you receive any share of partnership profits (taxable or otherwise), you must report it on your personal tax return. This includes trading or professional profits, losses, or other income allocated to you via the Partnership Statement. Even if the partnership files its own return (SA850), each partner is individually liable for reporting their share.
  • New or Changed Partnership Status: If you became a partner between 6 April 2024 and 5 April 2025, you must register for Self-Assessment and Class 2 National Insurance Contributions (NICs) immediately (via www.gov.uk/register-for-self-assessment/self-employed). If you left a partnership in this period, you must notify HMRC to avoid overpaying tax and ensure correct NICs (via www.gov.uk/stop-being-self-employed).
  • Taxable Profits or Losses: You are liable if your share of partnership profits exceeds £1,000 (general untaxed income threshold), or if you have losses to claim relief on (e.g., set off against other income). Losses can be claimed up to £50,000 or 25% of adjusted total income per year.
  • Foreign Tax or Adjustments: If claiming foreign tax as a deduction or Foreign Tax Credit Relief (HS263), or if adjustments are needed (e.g., for basis period reform, averaging, or change in accounting practice).
  • Transition Profits from Basis Period Reform: If affected by reforms in 2023-2024 (e.g., became a partner before 6 April 2022), remaining transition profits (spread over 4 years at 25% each, or accelerated) must be reported, triggering SA liability.
  • General SA Triggers: Beyond partnership-specific, if partnership income pushes total income over £100,000 (reducing Personal Allowance), or if you have untaxed income, capital gains, or other factors requiring SA (e.g., High Income Child Benefit Charge).
  • Penalties for Non-Compliance: Failure to register or file can result in penalties (e.g., £100 fixed, plus daily £10 after 3 months, up to £300 after 6/12 months per partner). Deliberate errors can lead to penalties up to 100-200% of tax due, or prosecution.

If your only income is from a partnership and below thresholds (e.g., no tax due), you may still need to file if registered or if HMRC issues a notice. Always check via HMRC helpline or online account.

Differences Between Kinds of Partnerships

This post primarily cover general UK partnerships but highlight differences:

  • General UK Partnerships: Treated as transparent for tax; profits/losses flow to partners’ personal returns. Use partnership’s tax reference in Box 1 (SA104S/F). Partners pay tax on their share individually. Includes trading/professional businesses.
  • Foreign Partnerships: Use your own Unique Taxpayer Reference (UTR) in Box 1 instead of the partnership’s. May involve foreign tax claims (Box 12). Subject to same rules but with potential double taxation relief.
  • Limited Partnerships or LLPs (Limited Liability Partnerships): Not explicitly differentiated in notes, but treated similarly for tax (transparent). However, LLPs are bodies corporate; members may have salaried elements (reported as employment income). Losses may be restricted if limited liability applies.
  • EEIGs (European Economic Interest Groupings): Special rules in SA850: If UK-registered, manager files; otherwise, addressed member files. Similar to partnerships but for cross-border EU activities. Penalties apply per member.
  • Investment vs. Trading Partnerships: Notes focus on trading/professional profits; investment partnerships (e.g., property) use same forms but may require ‘Property’ pages if not covered in partnership return.
  • Nominee or Corporate Partners: If partnership includes a company, filing deadline extends (SA850). Individual partners still file personally.
  • Short vs. Full Pages: Not a partnership type difference, but form choice: Use SA104S (short) for simpler cases (e.g., no complex adjustments); SA104F (full) for detailed ones (e.g., transition profits, detailed expenses).

All types require the partnership to file SA850 (Partnership Tax Return) by 31 October 2025 (paper) or 31 January 2026 (online), providing each partner with a Partnership Statement for their personal return.

Information Required in Every Box for the Tax Return (Partnership-Related Sections)

Assuming income only from partnership, focus on SA104S (Short) or SA104F (Full) supplementary pages in your personal SA100 tax return. Use short if simple (e.g., no detailed adjustments); full otherwise. Do not use if changing between self-employment and partnership mid-year—use self-employment pages instead. Copy figures from Partnership Statement (provided by partnership via SA850). If printed form, add name and UTR at top.

SA104S (Partnership Short Pages) Boxes:

  • Box 1 (Partnership reference number): Partnership’s tax reference (from Partnership Statement). For foreign partnership, your own UTR.
  • Box 3 (Date joined if after 5 April 2024): DD MM YYYY you became partner (6 April 2024–5 April 2025). Register for SA/NICs if new.
  • Box 4 (Date left if before 6 April 2025): DD MM YYYY you left. Notify HMRC for tax/NICs adjustment.
  • Box 8 (Share of profit/loss): Figure from Box 11/12 of Partnership Statement (latest if multiple). Use minus sign for loss.
  • Box 9 (Adjustment for non-12-month period or end before 31 March 2025): Any addition/apportionment to align with tax year (e.g., add/apportion shares from statements).
  • Box 10 (Adjustment for change of accounting practice): From Box 11A of Statement (spread over 6 years; elect to accelerate).
  • Box 11 (Averaging adjustment): Change from averaging claim (minus if reduces profit). See HS224 (farmers) or HS234 (artists).
  • Box 12 (Foreign tax as deduction): Foreign tax paid (if not claiming Foreign Tax Credit Relief—HS263).
  • Box 16 (Adjusted profit for 2024-25): From working sheet on SPN 4 (profit after adjustments; 0 if loss).
  • Box 17 (Losses brought forward set off): Losses from earlier years (up to Box 16 amount).
  • Box 18 (Taxable profits after losses): From working sheet Box K on SPN 4.
  • Box 19 (Other business income not in accounts): Personal professional income (not partnership’s).
  • Box 20 (Share of total taxable profits): From working sheet Box M on SPN 4.
  • Box 21 (Adjusted loss for 2024-25): From working sheet on SPN 4 (if loss).
  • Box 22 (Loss this year set off against other income): Current-year loss (limited to £50,000 or 25% adjusted income).
  • Boxes 23–24 (Other loss relief claims): Details in ‘Any other information’ on TR7 if claimed early.

SA104F (Partnership Full Pages) Boxes:

Similar to short but more detailed. Use if complex (e.g., transition profits).

  • Box 1: Same as short.
  • Box 3: Same as short.
  • Box 4: Same as short.
  • Box 8 (Share of profit/loss): Same as short Box 8.
  • Box 9 (Basis period adjustment): Adjustments for non-standard periods (do not include transition profits).
  • Box 10: Same as short.
  • Box 11: Same as short.
  • Box 12: Same as short.
  • Box 16 (Adjusted profit): From working sheet on FPN 8 (0 if loss).
  • Box 16.3 (Spread of transition profit): 25% of remaining transition profits (or accelerated amount). Details in TR7 if electing acceleration.
  • Box 16.4 (Losses brought forward vs. transition profit): Up to Box 16.3 amount.
  • Box 17–20: Similar to short (losses brought forward, taxable profits, other income, total share).
  • Box 21: Same as short.
  • Box 22: Same as short.
  • Other Boxes (15–76): Use self-employment full pages for detailed profit/loss calc if needed (e.g., expenses, capital allowances).

Tax Calculation Summary (SA110) – Relevant if Partnership Income Triggers Tax Due:

If partnership income requires calculation (e.g., >£100,000 or transition profits), use SA110 working sheet. Key boxes (copy from partnership pages):

  • Non-savings income (Section 1): Include partnership profits/lump sums.
  • Deductions/Allowances (Section 4): Personal Allowance (reduced if income >£100,000—Section 13).
  • Taxable Income (Section 5): After allowances.
  • Tax Due (Sections 7–8): On profits (e.g., 20%/40%/45% bands).
  • NICs (Section 15): Class 2/4 on partnership profits.
  • Transition Profit Charge: Calculate twice (with/without in A43) for separate charge.

Provisional figures: Use if disputing; mark ‘X’ in TR8 Box 20 and explain in TR7.

Checklist of Documents, Evidences, Receipts, Dates, Invoices, and Forms Needed to Submit a Tax Return Correctly

To file accurately (online/paper by deadlines), gather:

  • Partnership Statement(s): From partnership’s SA850 (summary of your share; multiple if periods overlap).
  • Partnership Accounts/Records: Invoices, receipts for adjustments (e.g., expenses, foreign tax paid).
  • UTR and Name Confirmation: Your UTR (10 digits); partnership’s tax reference.
  • Dates: Join/leave dates (DD MM YYYY); accounting period end dates.
  • Adjustment Evidence: Bank statements/receipts for non-12-month periods, averaging claims (HS224/HS234), change in accounting practice (spread calculations).
  • Loss Relief Claims: Prior-year loss records; details for set-off (in TR7 if early claim).
  • Foreign Tax Documents: Proof of foreign tax paid (e.g., withholding certificates) for Box 12 or HS263 claims.
  • Transition Profit Evidence: Calculations from 2023-2024 basis reform; election details for acceleration (in TR7).
  • Other Income Proof: Receipts for personal professional income (Box 19).
  • NICs/Registration Forms: Proof of registration if new partner.
  • Tax Return Forms: SA100 (main), SA104S/F (partnership pages), SA110 (if calculating tax), Additional Information pages (Ai) if losses/other.
  • Supporting Helpsheets: HS222 (taxable profits), HS227 (losses), HS263 (foreign tax).
  • Financial Records: Keep all receipts/invoices for 6 years (do not submit unless requested; SA850 notes emphasize retention).
  • Provisional Figure Explanation: Tribunal referral if disputing share (notify HMRC/nominated partner).

Submit via HMRC online (preferred) or paper; no attachments unless requested. If errors found post-submission, amend within 12 months

Guidance on Class 4 National Insurance Contributions (NICs) and Self-Employment

Class 4 NICs are profit-based contributions for self-employed individuals (including sole traders, partners in business partnerships, or Lloyd’s underwriters). Unlike Class 2 NICs, which are flat-rate and primarily for benefit entitlement, Class 4 NICs are a percentage of your taxable profits and are collected alongside income tax through Self Assessment.

They do not directly build additional benefit entitlements but are mandatory where applicable. Below is a comprehensive summary based on HMRC guidance for the 2024-25 tax year (6 April 2024 to 5 April 2025). Note that rates were reduced from the previous year (2023-24), where the main rate was 9%, to simplify taxation for the self-employed as announced in the 2023 Autumn Statement and 2024 Spring Budget.

Key Rates and Thresholds for 2024-25

  • Main Rate: 6% on taxable profits between the Lower Profits Limit (LPL) and Upper Profits Limit (UPL).
  • Additional Rate: 2% on taxable profits above the UPL.
  • Lower Profits Limit (LPL): £12,570 (aligned with the Personal Allowance for income tax; no Class 4 due on profits below this).
  • Upper Profits Limit (UPL): £50,270 (aligned with the end of the basic rate income tax band).
  • No Liability Threshold: If profits are below £12,570, no Class 4 NICs are due. There is no equivalent to the Class 2 “small profits threshold” for opting in voluntarily—Class 4 is only payable on profits in the chargeable bands.

These thresholds and rates apply UK-wide (including Scotland). For 2025-26, the main rate remains 6%, with thresholds potentially adjusted for inflation, but this does not affect 2024-25 returns.

Maximum Contributions Test for National Insurance Contributions (NICs)

The Maximum Contributions Test (also known as the annual maximum for Class 4 NICs) is a mechanism to ensure that individuals who pay both Class 1 NICs (from employment) and Class 4 NICs (from self-employment) in the same tax year do not overpay compared to someone with equivalent earnings from a single source. It caps the total NICs liability based on Regulation 100 of the Social Security (Contributions) Regulations 2001. This test is particularly relevant if you have mixed income sources and is automatically applied during Self Assessment calculations (in Section 15 of the SA110 Tax Calculation Summary working sheet).

For the 2024-25 tax year, the test uses the reduced Class 4 main rate of 6% (down from 9% in 2023-24, as per the National Insurance Contributions (Reduction in Rates) Act 2024). There were no fundamental changes to the test’s structure for 2024-25 beyond updating the rates and thresholds. The key thresholds are:
ower Profits Limit (LPL): £12,570

Upper Profits Limit (UPL): £50,270

Class 4 main rate: 6% (on profits between LPL and UPL)

Class 4 additional rate: 2% (on profits above UPL)

Class 2 weekly rate: £3.45 (used as 53 weeks in the max test for conservatism, totaling £182.85)

When Does the Test Apply?

  • You must have paid Class 1 NICs (employee contributions) in the year.
  • Your self-employment profits exceed the LPL (£12,570), making you liable for Class 4 NICs.
  • If no Class 1 NICs are paid, the test does not apply, and you pay standard Class 4 NICs.
  • Exemptions from Class 4 (e.g., under 16 or over State Pension age at the start of the tax year) mean no test is needed.

The test compares your “normal” Class 4 liability against a capped maximum and takes the lower amount. HMRC calculates this for you if you submit your return, but you can estimate it using the steps below or the SA110 working sheet.

Step-by-Step Calculation Method for 2024-25

Use your taxable self-employment profits (after expenses, allowances, and adjustments, as reported in Box 31 of SA103S or Box 76 of SA103F). Include any Class 2 NICs paid or treated as paid.

  1. Calculate the main band: Subtract LPL from UPL (£50,270 – £12,570 = £37,700).
  2. Apply main rate: Multiply the result by the main Class 4 rate (£37,700 × 6% = £2,262).
  3. Add Class 2 element: Add 53 weeks of Class 2 NICs (£3.45 × 53 = £182.85). Total: £2,262 + £182.85 = £2,444.85.
  4. Subtract paid contributions: Subtract the total of any Class 2 NICs paid/credited + Class 1 NICs paid at the main employee primary rate (8% on earnings between Primary Threshold £12,570 and Upper Earnings Limit £50,270). This gives “Step 4 result.”
    • If Step 4 is negative, treat it as nil (Case 3) and proceed to Step 5 (main Class 4 = £0).
    • If Step 4 > £0 but ≤ your “normal” main Class 4 + Class 1 main + Class 2, this is your max main Class 4 (Case 2); proceed to Step 5.
    • If Step 4 > £0 and > that aggregate, this is your total max Class 4; stop here (Case 1). (“Normal” main Class 4 = [min(profits, UPL) – LPL] × 6%, if positive.)

If Case 1 applies, your max Class 4 NICs = Step 4. Otherwise, continue:

  1. Adjust for used band: Multiply Step 4 by (100 / main rate) = Step 4 × (100 / 6) ≈ Step 4 × 16.6667. This calculates the equivalent “band used” for the contributions already paid.
  2. Available main band: Subtract LPL from the lesser of UPL or your actual profits.
  3. Remaining band: Subtract Step 5 from Step 6. If negative, treat as nil.
  4. Additional on remaining band: Multiply Step 7 by the additional rate (2%).
  5. Additional on excess profits: Multiply profits above UPL by 2% (if profits > UPL; else £0).

Total max Class 4 NICs = Step 4 + Step 8 + Step 9.

Compare this max to your “normal” Class 4 liability ([profits – LPL] × 6% up to UPL, + 2% above) and pay the lower amount. Copy the final figure to Box A329 in the SA110 summary.

Example

Assume £60,000 self-employment profits, £20,000 employment earnings (all between PT and UEL, so Class 1 main paid: [£20,000 – £12,570] × 8% ≈ £594), and Class 2 treated as paid (£0 actual payment).

  • Normal Class 4: (£50,270 – £12,570) × 6% + (£60,000 – £50,270) × 2% = £2,262 + £194.60 = £2,456.60
  • Step 1: £37,700
  • Step 2: £2,262
  • Step 3: £2,262 + £182.85 = £2,444.85
  • Step 4: £2,444.85 – (£594 + £0) = £1,850.85
  • Since £1,850.85 > £0 and < normal aggregate (calculate similarly), Case 2.
  • Step 5: £1,850.85 × (100/6) ≈ £30,847.50
  • Step 6: min(£60,000, £50,270) – £12,570 = £37,700
  • Step 7: £37,700 – £30,847.50 = £6,852.50
  • Step 8: £6,852.50 × 2% = £137.05
  • Step 9: (£60,000 – £50,270) × 2% = £194.60
  • Max Class 4: £1,850.85 + £137.05 + £194.60 = £2,182.50
  • Pay the lower: £2,182.50 (saving ~£274 vs. normal).

This ensures your total NICs align with a single-source earner.

Additional Notes

Help: See HMRC’s NIM24175 manual for more or contact the Self Assessment helpline. If your return is complex, use a tax adviser. If profits are low or exempt, no Class 4 is due

53 vs. 52 Weeks: The test uses 53 weeks for Class 2 to provide a buffer, even though the year has 52 weeks.

Share Fishermen/Voluntary Class 2: Use £4.10/week for share fishermen. Voluntary Class 2 counts in Step 4.

If No Cap Needed: If max > normal Class 4, pay normal.

Reporting: Indicate adjustments in Self-Employment pages (e.g., Box 102 in full form). HMRC may notify you if deferment applies.

Guidance on self-employment and Class 2 National Insurance Contributions (NICs)

Class 2 NICs are flat-rate contributions primarily for self-employed people (including sole traders, partners in a business partnership, or Lloyd’s underwriters). They help build entitlement to certain contributory benefits, such as the State Pension, Maternity Allowance, and Bereavement Support Payment. Below is a comprehensive summary based on HMRC guidance for the 2024-25 tax year (6 April 2024 to 5 April 2025). Note that significant reforms took effect from April 2024: Class 2 NICs are no longer mandatory for most self-employed individuals but can be credited or paid voluntarily to protect your National Insurance record.

Key Rates and Thresholds for 2024-25

  • Rate: £3.45 per week (flat rate, not profit-based).
    • This equates to approximately £179.40 for a full tax year (based on 52 weeks; calculations may occasionally reference 53 weeks in maximum contribution tests, but standard is 52).
  • Small Profits Threshold (SPT): £6,725.
    • If your taxable profits (after allowable expenses and deductions) are £6,725 or more: Class 2 NICs are treated as paid automatically. You do not need to pay anything, but you still receive a qualifying year for benefits like the State Pension.
    • If your taxable profits are below £6,725 (or you make a loss): No Class 2 NICs are required, but you can choose to pay them voluntarily to gain a qualifying year and protect your entitlement to benefits.
  • No Upper Threshold: Unlike Class 4 NICs, Class 2 is not scaled by higher profits—it’s either credited (no payment) or voluntary (flat rate).

These thresholds and rates apply UK-wide (including Scotland). For 2025-26, the rate increases to £3.50 per week and the threshold to £6,845, but this does not affect 2024-25 returns.

Eligibility and Who Must/Should Pay

  • Mandatory Payment: None for 2024-25—reforms abolished compulsory Class 2 payments. If profits are £6,725 or above, contributions are credited without payment.
  • Voluntary Payment: Recommended if profits are below £6,725 and you want to maintain your National Insurance record for benefits. This is particularly important if you’re close to State Pension age or rely on contributory benefits. You must be registered as self-employed with HMRC for voluntary payments to count (even if not filing a tax return).
  • Special Cases:
    • Employed and Self-Employed: If you pay Class 1 NICs through employment, you may pay reduced or no Class 2, depending on your total contributions. However, you still need to pay Class 2 during temporary self-employment breaks if you intend to resume (e.g., writers’ block or seasonal work).
    • Foster Carers/Shared Lives Carers: Treated as self-employed; same rules apply based on qualifying care receipts.
    • Rent-a-Room Scheme Participants: If using this for income from letting furnished rooms, it counts as self-employment; apply thresholds to profits.
    • Overseas or Remittance Basis Users: If all business is abroad and on remittance basis, limited reporting; otherwise, full rules apply.
    • Exemptions/Exclusions: Certain groups (e.g., examiners, ministers of religion without salary, or property investors without active trading) may pay voluntary Class 2 outside Self Assessment. You cannot pay if under 16 or over State Pension age at the tax year start.

If you’re not eligible for crediting and don’t pay voluntarily, you won’t get a qualifying year, which could affect your State Pension (you need 35 qualifying years for the full new State Pension).

How Class 2 NICs Are Calculated and Paid

  • Calculation:
    • In your Self Assessment tax return (SA103S short form for turnover <£90,000 or SA103F full form otherwise), indicate voluntary payment by putting an ‘X’ in:
      • Box 36 (short form).
      • Box 100 (full form).
    • This triggers inclusion in your tax calculation (SA110). The flat rate (£3.45/week) is multiplied by the number of weeks in the tax year (typically 52, totaling ~£179.40).
    • If profits >=£6,725, no amount is due (shown as £0 in calculations).
    • Maximum Contributions Test: If your total NICs (Class 1 from employment + Class 2 + Class 4) exceed a cap (e.g., ~£5,000 for 2024-25, based on 53 weeks of maximum Class 1/4 rates), you may get a refund or reduction. This is rare but calculated in SA110 Section 15.
  • Payment:
    • Paid via Self Assessment alongside income tax and Class 4 NICs (due by 31 January 2026 for online filing).
    • If not filing a return (e.g., profits <=£1,000 under trading income allowance and no other reasons to file), contact HMRC directly to pay voluntarily.
    • Deadline Note: You cannot pay voluntary Class 2 through Self Assessment after 31 January 2026. Late payments may require direct arrangement with HMRC.
    • Registration: Must register as self-employed via www.gov.uk/register-for-self-assessment/self-employed if not already done (even for voluntary payments).
  • Integration with Tax Calculation:
    • In SA110 (Tax Calculation Summary), Class 2 is handled in Section 15.
    • Copy the calculated amount to Box 4.1 on the summary pages.
    • If voluntary, it’s added to your total tax bill.

Benefits and Why Pay Voluntarily

  • Qualifying Year: Each year of Class 2 (paid or credited) counts toward:
    • State Pension (basic or new).
    • Maternity Allowance.
    • Bereavement Support Payment.
    • Contributory Employment and Support Allowance.
  • Gaps in Record: Voluntary payments fill gaps, especially useful if profits fluctuate or you’re part-time self-employed.
  • No Impact on Tax: Class 2 doesn’t affect your income tax liability—it’s separate.

Changes for 2024-25

  • Reform from April 2024: Class 2 became non-mandatory. Previously (2023-24), it was payable if profits exceeded £6,725. Now, it’s credited without payment above the threshold, reducing admin for higher earners. This was announced in the 2023 Autumn Statement to simplify self-employment taxes.
  • No Retrospective Changes: Applies only from 2024-25 onward.

Additional Notes

  • If You Stopped/Started Self-Employment: Prorated based on weeks traded; notify HMRC via www.gov.uk/stop-being-self-employed to adjust.
  • Records: Keep evidence of profits/expenses for 5 years after filing (or longer if queried).
  • Help and Issues: Use Helpsheet HS222 for profit calculations. If software glitches occur (e.g., as reported in November 2025 for tax returns), HMRC has resolved them—file as normal.
  • For more: Visit www.gov.uk/self-employed-national-insurance-rates or contact HMRC Self Assessment helpline (0300 200 3310).

If your situation involves combined employment/self-employment or specific benefits claims, consult HMRC or a tax adviser for personalized advice.