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
£100,520.40
Monthly net income
£8,376.70
Weekly net income
£1,933.08
Quarterly set-aside
£32,739.80
Set aside £32,739.80 per quarter. Payment dates are typically 31 January and 31 July.

Full breakdown

Annual profit£166,000.00
Income tax£60,903.00
Class 4 NI£4,576.60
Student loan£0.00
Total deductions£65,479.60
Net income£100,520.40

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% £40,860.00 £18,387.00

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% £115,730.00 £2,314.60