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
£147,061.90
Monthly net income
£12,255.16
Weekly net income
£2,828.11
Quarterly set-aside
£53,969.05
Set aside £53,969.05 per quarter. Payment dates are typically 31 January and 31 July.

Full breakdown

Annual profit£255,000.00
Income tax£101,581.50
Class 4 NI£6,356.60
Student loan£0.00
Total deductions£107,938.10
Net income£147,061.90

Income tax by band

Band Rate Taxable amount Tax
Basic rate 20.0% £37,700.00 £7,540.00
Higher rate 40.0% £74,870.00 £29,948.00
Additional rate 45.0% £142,430.00 £64,093.50

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% £204,730.00 £4,094.60