Self-Employed Tax Calculator UK (2025/26)

Estimate take-home profit after income tax, Class 2 NI, Class 4 NI and optional student loan deductions. Results update instantly and include a quarterly set-aside estimate for payments on account.

Updated for 2025/26 · Reviewed by James Whitfield · Methodology and assumptions

£

Results

Annual net income
£40,712.00
Monthly net income
£3,392.67
Weekly net income
£782.92
Quarterly set-aside
£5,144.00
Set aside £5,144.00 per quarter. Payment dates are typically 31 January and 31 July.

Full breakdown

Annual profit£51,000.00
Income tax£7,832.00
Class 2 NI£179.40
Class 4 NI£2,276.60
Student loan£0.00
Total deductions£10,288.00
Net income£40,712.00

Income tax by band

Band Rate Taxable amount Tax
Basic rate 20.0% £37,700.00 £7,540.00
Higher rate 40.0% £730.00 £292.00
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% £37,700.00 £2,262.00
Above £50,270 2.0% £730.00 £14.60