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
£99,891.90
Monthly net income
£8,324.32
Weekly net income
£1,921.00
Quarterly set-aside
£33,054.05
Set aside £33,054.05 per quarter. Payment dates are typically 31 January and 31 July.

Full breakdown

Annual profit£166,000.00
Income tax£61,531.50
Class 4 NI£4,576.60
Student loan£0.00
Total deductions£66,108.10
Net income£99,891.90

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% £53,430.00 £24,043.50

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% £115,730.00 £2,314.60