TAXHMRC readyTax Estimator
UK self-employed tax, National Insurance and take-home pay — band-accurate.
Tax Estimator
Quick estimate of your Self-Assessment bill. Updates as you type. Press Esc to clear.
Edit any value — results update live
Enter whole pounds or use a decimal for pence — commas are optional. Currency is GBP (£).
Try an example:
Formatting guide
- Allowed: digits
0–9, commas,, one decimal point., and£. - Decimals: max two places (pence). e.g.
1500.50. - Commas: optional thousands separators — added automatically as you type.
- Not allowed: letters, negative values, multiple decimal points, or values over £10,000,000.
- Empty: blank fields count as £0.
Estimated tax & NI
- Taxable profit
- £27,000
- Personal Allowance used(£12,570 tax-free)
- £12,570
- Income tax (20%)
- £2,886
- Class 4 NI (6% / 2%)
- £866
- Class 2 NI(Voluntary from 2024/25)
- £0
- Total estimated tax & NI
- £3,752
- Set aside per month
- £313
This is an estimate only. Speak to an accountant or visit gov.uk for your actual liability.