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
£72,745.55
Monthly net income
£6,062.13
Weekly net income
£1,398.95
Quarterly set-aside
£25,127.22
Set aside £25,127.22 per quarter. Payment dates are typically 31 January and 31 July.

Full breakdown

Annual profit£123,000.00
Income tax£46,537.85
Class 4 NI£3,716.60
Student loan£0.00
Total deductions£50,254.45
Net income£72,745.55

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% £50,140.00 £22,563.00
Top rate 48.0% £9,360.00 £4,492.80

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% £72,730.00 £1,454.60