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 James Whitfield · Methodology and assumptions
Results
Annual net income
£139,109.05
Monthly net income
£11,592.42
Weekly net income
£2,675.17
Quarterly set-aside (savings estimate)
£29,222.74
Set aside £29,222.74 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 | £256,000.00 |
| Income tax | £110,514.35 |
| Class 4 NI | £6,376.60 |
| Student loan | £0.00 |
| Total deductions | £116,890.95 |
| Net income | £139,109.05 |
Income tax by band
| Band | Rate | Taxable amount | Tax |
|---|---|---|---|
| Starter rate | 19.0% | £3,967.00 | £753.73 |
| Basic rate | 20.0% | £12,989.00 | £2,597.80 |
| Intermediate rate | 21.0% | £14,136.00 | £2,968.56 |
| Higher rate | 42.0% | £31,338.00 | £13,161.96 |
| Advanced rate | 45.0% | £62,710.00 | £28,219.50 |
| Top rate | 48.0% | £130,860.00 | £62,812.80 |
Class 4 NI by band
| Range | Rate | Profit in band | NI |
|---|---|---|---|
| £12,570 to £50,270 | 6.0% | £37,700.00 | £2,262.00 |
| Above £50,270 | 2.0% | £205,730.00 | £4,114.60 |