Self-Employed Tax Calculator 2025/26
Calculate your take-home pay as a sole trader for the 2025/26 tax year. Includes income tax, Class 4 National Insurance, student loan repayments, and pension relief for England, Wales, Northern Ireland, and Scotland.
£
£
£
Take-home pay
Annual£36,568
Monthly£3,047
Effective tax rate18.7%
Marginal rate26.0%
Total tax£8,432
Profit breakdown
Take-home pay£36,568
Income Tax£6,486
Class 4 NI£1,946
Deductions breakdown
| Item | Annual | Monthly |
|---|---|---|
| Turnover | £50,000.00 | £4,166.67 |
| Expenses | -£5,000.00 | -£416.67 |
| Taxable profit | £45,000.00 | £3,750.00 |
| Income Tax | -£6,486.00 | -£540.50 |
| Class 4 NI | -£1,945.80 | -£162.15 |
| Take-home pay | £36,568.20 | £3,047.35 |
Income Tax bands (England, Wales & NI)
| Band | Rate | Taxable amount | Tax |
|---|---|---|---|
| Personal Allowance | 0% | £12,570.00 | £0.00 |
| Basic rate | 20% | £32,430.00 | £6,486.00 |
| Total Income Tax | £32,430.00 | £6,486.00 |
Class 4 National Insurance
| Band | Rate | Profits | NI |
|---|---|---|---|
| Below Lower Profits Limit | 0% | £12,570.00 | £0.00 |
| LPL to UPL (main rate) | 6% | £32,430.00 | £1,945.80 |
| Total Class 4 NI | £1,945.80 |
Class 2 NI has been abolished for most self-employed from 2024/25 onwards. Voluntary contributions remain available at £3.45/week if profits exceed the Small Profits Threshold (£6,725).
On a turnover of £50,000 with £5,000 in business expenses, your taxable profit is £45,000 for the 2025/26 tax year (England, Wales & Northern Ireland). After £6,486 income tax and £1,946 Class 4 National Insurance, your take-home pay is £36,568 per year (£3,047 per month). Your effective tax rate is 18.7% and your marginal rate is 26.0%.