Self-Employed Tax Calculator UK (2026/27)
Estimate take-home profit after income tax and Class 4 National Insurance, with optional student loan deductions. Results update instantly and include a quarterly set-aside savings estimate.
Updated for 2026/27 · Reviewed by the AfterTaxSalary team · Methodology and assumptions
Results
Annual net income
£17,328.20
Monthly net income
£1,444.02
Weekly net income
£333.23
Quarterly set-aside (savings estimate)
£417.95
Set aside £417.95 per quarter as a savings estimate (a quarter of the year's income tax and Class 4 NI). Self Assessment is paid on 31 January and 31 July, usually as two payments on account of half the previous year's bill. First year: there are no payments on account yet, so your first 31 January bill is the whole year-one bill plus the first payment on account for year two — up to 150% of a year's tax on one date. Save extra before your first January. How quarterly tax works.
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Full breakdown
| Annual profit | £19,000.00 |
| Income tax | £1,286.00 |
| Class 4 NI | £385.80 |
| Student loan | £0.00 |
| Total deductions | £1,671.80 |
| Net income | £17,328.20 |
Income tax by band
| Band | Rate | Taxable amount | Tax |
|---|---|---|---|
| Basic rate | 20.0% | £6,430.00 | £1,286.00 |
| Higher rate | 40.0% | £0.00 | £0.00 |
| Additional rate | 45.0% | £0.00 | £0.00 |
Class 4 NI by band
| Range | Rate | Profit in band | NI |
|---|---|---|---|
| £12,570 to £50,270 | 6.0% | £6,430.00 | £385.80 |
| Above £50,270 | 2.0% | £0.00 | £0.00 |