Free tax estimator
Self-employed? Estimate your take-home pay after tax and NI.
Enter your annual self-employed profit to see roughly how much Income Tax and Class 4 National Insurance you might pay, and what's left over. It's an estimate based on current rates — not financial or tax advice.
- Free tax estimator
- No account needed
- Built for UK sole traders
- Instant estimate
Estimates only — not financial or tax advice. Based on 2025/26 rates — check HMRC, rates change. Uses England, Wales & Northern Ireland income-tax rates (not Scotland).
Example figure shown to get you started — change the profit above to match yours and this updates instantly.
Estimated take-home pay
£25,468
roughly a year, after Income Tax and Class 4 NI · 15% effective rate
Annual profit
£30,000
The figure this estimate is built from
Income Tax (estimate)
£3,486
England, Wales & Northern Ireland rates
Class 4 NI (estimate)
£1,046
Self-employed National Insurance
Take-home (estimate)
£25,468
Profit minus estimated tax & NI
What this means
On around £30,000 of profit, the estimate is roughly £3,486 of Income Tax and about £1,046 of Class 4 National Insurance — close to £4,532 in total, leaving an indicative take-home of around £25,468 (about 15% of profit going to tax and NI). These are estimates to sanity-check against — your actual figures depend on your full circumstances.
This is an estimate to help you plan — not financial or tax advice, and not a guarantee of what you will pay.
Based on 2025/26 rates — check HMRC, rates change.
Uses England, Wales & Northern Ireland income-tax rates (not Scotland).
Simplified: your profit is assumed to equal your taxable profit. It does not model student loan repayments, pension contributions, other income, the Personal Allowance interactions with other income, or payments on account.
Keep the money side tidy as you go.
Knowing your take-home is half the picture — the LaunchKit Financial Forms Bundle gives you the invoices, expense logs and quotes to track income and costs through the year, built for UK self-employed work.
View the Financial Forms BundleInvoices, expenses & more · from £11.99