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Self-employed tax estimate
How much to set aside for income tax and Class 4 National Insurance on your profit, 2026/27, England, Wales and Northern Ireland.
Estimate for 2026/27. Not tax advice. Rates from GOV.UK.
Common questions
What National Insurance do the self-employed pay?
Class 4: 6% on profit between £12,570 and £50,270 and 2% above. Class 2 is no longer compulsory.
What are payments on account?
If your bill is over £1,000, HMRC usually asks for two payments of half the bill, due 31 January and 31 July, plus any balance on the next 31 January.
What is the trading allowance?
A £1,000 allowance you can use instead of deducting expenses, for small amounts of self-employed income.