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
£107,940.40
Monthly net income
£8,995.03
Weekly net income
£2,075.78
Quarterly set-aside
£36,029.80
Set aside £36,029.80 per quarter. Payment dates are typically 31 January and 31 July.

Full breakdown

Annual profit£180,000.00
Income tax£67,203.00
Class 4 NI£4,856.60
Student loan£0.00
Total deductions£72,059.60
Net income£107,940.40

Income tax by band

Band Rate Taxable amount Tax
Basic rate 20.0% £37,700.00 £7,540.00
Higher rate 40.0% £87,440.00 £34,976.00
Additional rate 45.0% £54,860.00 £24,687.00

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% £129,730.00 £2,594.60