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 estimate for payments on account.

Updated for 2026/27 · Reviewed by James Whitfield · Methodology and assumptions

£

Results

Annual net income
£21,768.20
Monthly net income
£1,814.02
Weekly net income
£418.62
Quarterly set-aside
£1,615.90
Set aside £1,615.90 per quarter. Payment dates are typically 31 January and 31 July.

Full breakdown

Annual profit£25,000.00
Income tax£2,486.00
Class 4 NI£745.80
Student loan£0.00
Total deductions£3,231.80
Net income£21,768.20

Income tax by band

Band Rate Taxable amount Tax
Basic rate 20.0% £12,430.00 £2,486.00
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% £12,430.00 £745.80
Above £50,270 2.0% £0.00 £0.00