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Estimate UK self-employed tax in seconds.
Built for sole traders and freelancers who need a quick estimate. Enter annual figures, get instant tax and National Insurance totals, and a monthly set-aside target. Create an account if you want your runs stored online.
UK Self-Assessment Focus
Income tax bands, Class 2 and Class 4 NI, student loan plans, and payment estimates.
Save to Account
Register once, save runs securely, compare them side-by-side, and access history across devices.
Updated for UK Tax Years
The calculator is reviewed and updated when UK rates and thresholds change, so you can plan with current tax-year figures.