£Salary Calculator 3652026/27 tax year
SELF-EMPLOYED ESTIMATE

Sole Trader Contractor Calculator

Estimate Income Tax and Class 4 National Insurance on contract profit after allowable business expenses.

01 CONTRACT DETAILS
£
£
Enter only expenses that qualify for tax relief.
£
02 ESTIMATED RESULT
ANNUAL CONTRACT REVENUE£115,0005 × 46 billable units
Allowable expenses£2,500
Taxable profit£112,500
Income Tax£34,932
Class 4 NI£3,507
Cash take-home£74,061

Your estimated taxable turnover is above the current VAT registration threshold. VAT registration may be required.

Assumptions and limitations

Annual estimates use standard annual National Insurance thresholds. Class 2 is not deducted: profits at or above £7,105 are treated as paid, while voluntary Class 2 below that level is optional. This model excludes umbrella margin, Apprenticeship Levy, benefits, capital allowances, VAT schemes, CIS, overseas residence and other specialist circumstances.

This calculator provides estimates based on the selected assumptions and published UK tax rates. It does not determine employment status and is not tax, accounting, legal, or financial advice. Actual liabilities may differ based on your circumstances.

Official sources