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Free tool
Estimate the Income Tax and National Insurance due on self-employed profits.
Enter your trading profit for the year and see an estimate of the Income Tax and Class 4 National Insurance a sole trader would pay on it, along with what is left afterwards.
Useful for setting money aside through the year, and for comparing against the corporation tax position if you are weighing up incorporating.
Provisional figures
Enter your trading profit to see an estimate of the Income Tax and National Insurance due.
These calculators give estimates based on standard UK tax rules and the figures we hold for the selected tax year. They do not account for every individual circumstance and are not tax advice. Always check your position with HMRC or speak to us before making a decision based on a figure here.
Being clear about the limits is what keeps an estimate honest.
Need a hand with the real thing?
A calculator gives you a number. These are the services behind it.
Help preparing and submitting your Self Assessment tax return, with your information properly organised.
About Tax ReturnsAccurate, organised records that keep your business finances up to date and easy to understand.
About BookkeepingBook a free consultation and we will talk through what you need — no charge, no obligation, and no jargon.
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