If you are self-employed or run a business in the UK, you can claim certain insurance costs as allowable business expenses on your self-assessment tax return, reducing your taxable profit. Business-related insurance such as professional indemnity, public liability, and employers’ liability typically qualify. Personal insurance premiums for life cover, private health plans, and personal motor policies remain non-deductible.

What Insurance Deductions Mean on Self-Assessment

When you complete a self-assessment return, HMRC allows you to deduct allowable business expenses from your trading income before calculating the tax you owe. Insurance premiums that protect your business, cover work-related risks, or are necessary for you to trade fall into this category. The principle is straightforward: if the insurance exists solely or mainly because of your business activities, the premium is usually an allowable expense (GOV.UK, 2026).

Personal insurance, by contrast, protects you or your family rather than your business operations. HMRC does not permit deductions for life assurance, private medical insurance bought for personal health, contents insurance on your home, or motor cover for private journeys. The distinction hinges on whether the policy serves a business purpose or a personal one.

Business Insurance You Can Claim

Professional indemnity insurance covers you against claims that your advice, work, or services caused a client financial loss. Many regulated professions and consultancies carry this cover as a condition of operating. The full premium is an allowable expense because the policy exists to protect your trading activity.

Public liability insurance pays out if a member of the public or a client is injured, or their property is damaged, because of your business. If you meet clients at your premises, visit their sites, or host events, public liability is typically essential. You claim the entire annual premium as a business cost.

Employers’ liability insurance is compulsory if you employ anyone, even part-time. It covers compensation claims from employees who suffer injury or illness because of their work. The premium is fully deductible because the law requires it for your business to operate.

Buildings insurance on commercial premises you own, and contents insurance covering business equipment, stock, and furnishings, both qualify as allowable expenses. If you rent a commercial space, the landlord’s buildings policy is their cost, but your contents cover for business assets remains claimable.

Business interruption insurance (also called loss of profits cover) pays a benefit if you cannot trade after an insured event such as fire or flood. The premium is an allowable expense because the policy replaces lost business income.

Goods in transit insurance, cyber liability cover, and trade credit insurance all serve specific business risks. If the policy protects a revenue stream, an asset used in the business, or liability arising from your trade, the premium is deductible.

Personal Insurance You Cannot Claim

Life assurance and critical illness cover taken out for personal or family protection are not allowable expenses, even if you are self-employed. HMRC treats these as personal financial planning, not business costs. The same rule applies to income protection insurance bought to replace your personal earnings if you fall ill: the benefit goes to you as an individual, so the premium is not deductible.

Private medical insurance (PMI) for yourself or your family is a personal expense. The fact that good health helps you work does not make the premium business-related in HMRC’s view.

Motor insurance for personal use, home contents and buildings cover for your residence, and travel insurance for holidays all remain non-deductible personal costs.

The exception to the motor rule is when you use a vehicle partly for business. You may claim the business-use proportion of your motor insurance premium, calculated by mileage or another reasonable method. If 60 per cent of your annual mileage is business travel, you can claim 60 per cent of the insurance cost. Keep a mileage log to support the split.

Read also: Professional Indemnity vs Public Liability Insurance for UK Freelancers

How to Claim Insurance Deductions

You report allowable insurance costs on the self-employment pages of your tax return (form SA103 for sole traders, or the partnership or company equivalents if you trade through those structures). Most returns ask for total business expenses by category; insurance premiums sit under general business costs or overheads, depending on the return’s layout.

Enter the gross premium paid during the tax year (6 April to 5 April). If you pay monthly, total the twelve payments. If you pay annually in advance, claim only the portion that falls within the tax year in question. Do not inflate the figure or include personal policies: HMRC can ask for supporting invoices during an enquiry, and incorrect claims may trigger penalties.

Common Mistakes and Pitfalls

Mixing personal and business policies. A combined home and office contents policy where your business stock represents a small add-on to personal cover requires you to split the premium. Claim only the identifiable business element, not the whole cost.

Claiming life or health cover. These are frequent errors. Even if you took out life assurance to reassure a business partner or secure a commercial loan, HMRC typically disallows the deduction because the policy benefits you personally. Writing a policy in trust for the business does not change this for sole traders; limited companies have different rules (outside the scope of self-assessment for individuals).

Overstating motor insurance. Claiming 100 per cent of your car insurance when you use the vehicle for private journeys as well is incorrect and easily spotted. Be realistic and evidence-based in your apportionment.

Forgetting to update the claim after a policy change. If you switch insurers mid-year, cancel a policy, or receive a refund, adjust the total premium claimed to match what you actually paid.

Record Keeping and Evidence

HMRC requires you to keep business records, including insurance certificates and payment receipts, for at least five years after the 31 January submission deadline of the relevant tax year. Store renewal notices, direct debit confirmations, and policy schedules. If you claim a proportion of a mixed-use policy, document the calculation method and the underlying data (mileage logs, floor-space measurements for home-office splits).

As explained in foundational texts such as Principles of Finance, careful separation of business and personal expenditure underpins sound financial management and simplifies compliance.

When to Seek Advice

Self-assessment rules on allowable expenses are detailed, and insurance sits at the boundary between business necessity and personal choice. If you are unsure whether a specific policy qualifies, or if your situation involves multiple activities, consult an accountant or an HMRC-registered tax adviser. The rules around limited companies, partnerships, and more complex structures differ from the sole-trader position outlined here.

MoneyHelper and GOV.UK publish detailed guidance on self-employment expenses and self-assessment procedures; both are authoritative starting points for further reading (MoneyHelper, 2026).

Financial Disclaimer: This article provides general information about UK self-assessment and insurance deductions for educational purposes only. It is not regulated financial, tax, or legal advice, and UmbrellaOwl is not authorised by the Financial Conduct Authority or HMRC to provide tax advice. Tax rules and allowable expenses depend on your individual circumstances, business structure, and the specific insurance policies you hold. Before claiming any deduction on your self-assessment return, verify the current HMRC guidance and consider speaking to a qualified accountant or tax adviser registered with a recognised professional body. Incorrect claims may result in penalties or interest charges from HMRC. Always keep full records and evidence to support the expenses you claim.