Last reviewed: 3 August 2026.
Freelancers in the UK usually pay tax as sole traders through Self Assessment. You record your business income and allowable expenses, calculate the resulting profit, report the relevant figures to HMRC and pay any Income Tax and National Insurance due. Your total bill depends on all your taxable income and personal circumstances.
This practical overview covers the 2026 to 2027 tax year. It is general information, not a personal tax calculation or recommendation.
Is a freelancer self-employed?
“Freelancer” is a working description rather than a tax status. Many freelancers operate as sole traders, meaning they are self-employed and personally responsible for the business. Others work through limited companies or partnerships, which have different reporting rules. This guide focuses on sole traders.
Freelance income can include client projects, consulting, design, writing, tutoring, photography, trades, online services and paid side work. Keep records of amounts invoiced, amounts received, platform or payment fees, refunds and any business costs.
When to register for Self Assessment
You may need to register when your gross trading income is more than £1,000 in a tax year, before deducting expenses. Other circumstances can also require a return. If it is your first return, the usual registration deadline is 5 October following the end of the tax year you need to report.
Check the official GOV.UK registration guidance. Do not assume the £1,000 trading allowance means you never need records or that it is automatically the best treatment for you.
What freelance tax is based on
A sole trader is generally taxed on taxable business profit rather than gross turnover. Broadly, profit is business income minus allowable business expenses, with any required tax adjustments. Your Income Tax calculation can also include employment, pension, savings, property and other taxable income.
For 2026 to 2027, the standard Personal Allowance is £12,570, although it can be reduced in some circumstances. Income Tax bands differ in Scotland, and allowances or other income can materially change the result. Use HMRC’s current rates and an official calculation or qualified adviser rather than applying one percentage to every payment.
Income Tax and National Insurance
Income Tax and self-employed National Insurance are separate parts of the calculation. Class 4 National Insurance may be due according to the profit thresholds and rates for the year. Some people can also make voluntary Class 2 contributions where this helps protect their National Insurance record.
Because the calculation is personal, a generic “save 20%” rule can be misleading. A separate tax savings account is useful, but the amount to set aside should be based on a realistic forecast that includes other income, National Insurance, payments on account and any student loan obligation. See how to plan a tax set-aside without treating it as an exact recommendation.
Allowable expenses
An expense normally needs to be incurred wholly and exclusively for the trade. Common categories can include office costs, software, professional fees, business insurance, advertising and eligible travel costs, but the correct treatment depends on what was bought and why. Personal portions and capital items may need different treatment.
Keep evidence and check the relevant HMRC rule before claiming. Start with our sole-trader expenses guide and the official GOV.UK allowable-expenses guidance.
Key Self Assessment deadlines
- 5 October: the usual deadline to register when filing for the first time.
- 31 October: the usual paper-return filing deadline.
- 31 January: the usual online filing deadline, balancing-payment deadline and first payment-on-account deadline.
- 31 July: the usual second payment-on-account deadline.
Exact obligations can differ, so confirm them on GOV.UK. Our sole-trader tax-deadlines guide explains the sequence.
Payments on account
Payments on account are advance payments towards the following Self Assessment bill. When they apply, HMRC usually asks for one instalment on 31 January and another on 31 July, followed by any balancing payment after the final calculation. This can make a first substantial bill feel larger than expected because it may include tax for the year just ended plus an advance amount.
Records to keep
- Sales invoices and other income records.
- Receipts and evidence for expenses.
- Business bank and payment-processor statements.
- Mileage or home-working calculations where relevant.
- Accounting-software exports and tax submissions.
- Notes explaining corrections, mixed-use costs and unusual transactions.
HMRC says self-employed records must usually be kept for at least five years after the 31 January submission deadline for the relevant tax year. See our record-keeping guide.
Making Tax Digital
Eligible sole traders with qualifying income over £50,000 entered MTD for Income Tax from 6 April 2026. Later phases begin at lower thresholds. MTD uses compatible software, digital records, quarterly updates and an end-of-year tax return. Read the current Making Tax Digital guide for UK sole traders.
Common freelancer tax mistakes
- Confusing turnover, profit and taxable income.
- Missing the registration deadline because work began as a small side project.
- Claiming personal spending as a business expense.
- Forgetting that payments on account may be added to the January bill.
- Leaving bookkeeping and receipt collection until the filing deadline.
- Using another freelancer’s tax percentage as a personal calculation.
Frequently asked questions
Do freelancers pay tax in the UK?
Yes, when their taxable income and circumstances create a liability. Sole-trader business profit is reported through Self Assessment alongside other relevant income.
How do freelancers file a tax return?
Most register for Self Assessment, maintain business records, complete the self-employment section and submit online through HMRC or compatible software. MTD users follow the digital-record and quarterly-update process as well.
Can a freelancer have a PAYE job too?
Yes. Employment and self-employment can coexist, but the tax return may need to include both so the overall liability is calculated correctly.
Last checked: 31 July 2026. Freelance Wallet UK provides general information only. It is not individual tax, legal, accounting or financial advice. Check current HMRC guidance or consult a qualified professional for your situation.