Same calculation, different use case: this page pushes the reserve figure to the front so you can budget for your tax bill as profit arrives.
Estimates only, not financial or tax advice. Cross-check important decisions with official HMRC guidance or a qualified adviser.
Adjust inputs below. Results update instantly.
| Income tax | £6,486.00 |
| Class 4 National Insurance | £1,945.80 |
| Student loan | £0.00 |
| Pension contribution | £0.00 |
| Monthly take-home | £3,047.35 |
| Monthly tax set-aside | £702.65 |
| Range | Rate | Profit in band | NI |
|---|---|---|---|
| £12,570 to £50,270 | 6.0% | £32,430.00 | £1,945.80 |
| Above £50,270 | 2.0% | £0.00 | £0.00 |
The calculator applies income tax to the selected tax year and region, estimates Class 4 National Insurance on annual profit, adds optional student loan deductions and then subtracts any pension contribution you enter as a practical cash outflow. Results are designed for planning, not for filing.
No compulsory Class 2 charge is added. The calculator focuses on income tax, Class 4 NI and optional student loan deductions for the active tax year.
Most sole traders need a reserve figure more than a theoretical bill. The monthly set-aside output is there to help you ring-fence cash as profit arrives.
No. It is an estimate for planning and budgeting only. Check your final position with HMRC guidance or a qualified adviser.