SoleTraderTaxCalculator
Updated for 2026/27

Day rate tax calculator

Enter your daily rate, billable days per week and estimated annual expenses. The calculator converts these to taxable profit and shows your estimated tax bill and monthly take-home.

Updated for 2026/27. Uses UK tax bands and HMRC/GOV.UK guidance. Estimates only — not tax advice.

Calculate sole trader tax Read the guides
Day rate to profitExpense deductionTax estimateMonthly net
2026/27 tax year England, Scotland, Wales & NI Student loan support Practical reserve figure

Sole trader tax calculator

Self-employed tax estimate

Adjust inputs below — results update instantly.

Tax year 2026/27
How do you earn?

Enter profit after allowable business expenses — not total turnover.

The annual profit used in calculations will be monthly profit × 12.

£
£
Expenses exceed estimated turnover — check your inputs.
£
£
Expenses exceed estimated turnover — check your inputs.
£
£
£36,568take-home / year£3,047/mo
Monthly net
£3,047
Tax set-aside
£703
Quarterly reserve
£2,108
Take-home£36,568
Income Tax£6,486
National Insurance£1,946
Student loan£0
Pension£0
Show detailed breakdown ▼
Income tax£6,486.00
Class 4 National Insurance£1,945.80
Student loan£0.00
Pension contribution£0.00
Take-home after tax£36,568.20
Monthly tax set-aside£702.65
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HMRC 2026/27 · Methodology
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How payments on account work, when they apply, why they catch people out and how to plan your monthly set-aside to cover them.
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The key filing and payment deadlines sole traders must know, what late filing costs, and how to use your tax estimate to prepare in advance.
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Use the PAYE salary tool if you want an employed take-home comparison beside your self-employed result.
EmployerCalculator.co.uk
Useful when a sole trader contract is being weighed against hiring someone through payroll.
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Useful once you want to turn stable post-tax profit into a realistic home-buying budget.
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