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
£69,311.40
Monthly net income
£5,775.95
Weekly net income
£1,332.91
Quarterly set-aside
£15,344.30
Set aside £15,344.30 per quarter. Payment dates are typically 31 January and 31 July.

Full breakdown

Annual profit£100,000.00
Income tax£27,432.00
Class 4 NI£3,256.60
Student loan£0.00
Total deductions£30,688.60
Net income£69,311.40

Income tax by band

Band Rate Taxable amount Tax
Basic rate 20.0% £37,700.00 £7,540.00
Higher rate 40.0% £49,730.00 £19,892.00
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% £49,730.00 £994.60