SoleTraderTaxCalculator
Updated for 2026/27

Quarterly tax calculator

If you manage your HMRC reserve in quarterly chunks rather than monthly, this view puts the quarterly figure front and centre alongside the underlying annual estimate.

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
Quarterly reserveMonthly reserveSelf AssessmentCashflow planning
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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