Key Takeaway

If you file a self-assessment tax return in the UK, you must keep certain insurance records for at least five years after the 31 January submission deadline. Business insurance, professional indemnity premiums, and income protection claim payments are the most relevant documents for self-employed individuals and landlords. Not all personal insurance affects your tax return, but proper record-keeping protects you if HMRC queries your return.

Which Insurance Records Matter for Self-Assessment

Most personal insurance policies (such as motor, home contents, or private life cover you arrange yourself) do not affect your self-assessment tax return. However, specific insurance records become essential if you are self-employed, a landlord, or receive certain insurance-related income.

Business and professional insurance: If you run a business or work as a freelancer, premiums for business insurance, professional indemnity cover, public liability insurance, and employer’s liability cover are allowable business expenses. Keep policy schedules, premium receipts, and renewal notices that show the amounts paid and the coverage period.

Income protection and critical illness claims: If you receive a payout from an income protection policy or a critical illness policy, the tax treatment depends on who paid the premiums. Payments from policies you paid for yourself are usually tax-free, but if your employer paid the premiums (or contributed to them), the payout may be taxable income that you must declare. Keep the claim settlement letter, the policy terms showing who paid the premiums, and any correspondence confirming the tax status of the payment.

Landlord insurance: If you let property, landlord insurance premiums (covering buildings, contents, and liability for rental properties) count as allowable expenses against your rental income. Retain premium receipts and policy documents that confirm the dates and amounts.

Private medical insurance as a benefit: If your employer provides private medical insurance and it appears on your P11D form as a taxable benefit, you do not need to keep separate insurance records (the P11D is your proof), but you should retain the P11D itself for your self-assessment records.

How Long to Keep Your Records

According to HMRC guidance on GOV.UK, you must keep your self-assessment records for at least five years after the 31 January submission deadline following the end of the relevant tax year. For example, records for the 2025-26 tax year (which you submit by 31 January 2027) must be kept until at least 31 January 2032.

If you file a late return, the five-year period starts from the actual date you submit the return, not the original deadline. If HMRC opens an enquiry into your return, you must keep the records until the enquiry is complete, even if that runs beyond the five-year period.

What Format and What Detail

HMRC accepts records in paper or digital format. If you scan or photograph insurance documents, ensure the images are clear and readable. Store digital files securely with backup copies, and organise them by tax year so you can locate specific records quickly if HMRC asks.

For each insurance expense you claim, keep enough detail to show the amount paid, the period covered, the type of cover, and that it relates to your business or rental activity (not personal use). A premium receipt or a bank statement entry alone may not be sufficient; retain the policy schedule or renewal notice that confirms the business purpose of the cover.

Practical Tips for Self-Assessment Record-Keeping

Separate business and personal: If you hold both personal and business insurance, keep the records in separate folders (physical or digital) from the start. This separation makes it easier to identify allowable expenses and reduces errors when completing your return.

Note mixed-use policies: If a single policy covers both business and personal use (for example, a combined home and business contents policy), calculate the business proportion and keep a note of how you worked out the split. HMRC may query apportionments, so document your reasoning.

Check claim tax treatment early: If you receive an insurance payout, contact the insurer or check the policy terms to confirm whether the payment is taxable before you file your return. Some insurers include this information in the settlement letter; if not, ask them to confirm in writing and keep that confirmation with your records.

Review your P11D: If you are employed as well as self-employed (or a landlord), check your P11D for any employer-provided insurance benefits. These must be declared on your self-assessment return if you receive one.

Financial Disclaimer

This article provides general information about self-assessment record-keeping for insurance and is not regulated financial or tax advice. We are not authorised by the Financial Conduct Authority. Tax rules and HMRC requirements can change, and your personal circumstances affect what you must declare and retain. Before making decisions about your self-assessment return or business expenses, consult an FCA-authorised tax adviser or accountant who can assess your individual situation. If you are uncertain whether an insurance payment is taxable, speak to a qualified tax professional or contact HMRC directly for guidance specific to your case.