SoleTraderTaxCalculator
Updated for 2026/27

Profit after tax calculator

For pricing decisions, rate negotiations and scenario planning — see how much of a given profit level you actually keep once income tax and NI are deducted.

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
Scenario planningNet profitMonthly viewBudgeting
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
Share this result
HMRC 2026/27 · Methodology
Ad placement
Self-Employed Tax Calculator UK
Estimate income tax, Class 4 National Insurance and take-home pay from self-employed income for 2026/27. Covers freelancers, contractors and sole traders.
Sole Trader Tax Calculator
Estimate sole trader income tax, Class 4 National Insurance and take-home profit for 2026/27.
Self Assessment Calculator UK
Estimate your Self Assessment tax bill from sole trader profit and plan for January and July payment deadlines.
Tax Set-Aside Calculator UK
Calculate how much to set aside each month from sole trader profit to cover income tax and National Insurance for 2026/27.
Take-Home Profit Calculator
Estimate how much of your sole trader profit remains after income tax, NI and optional deductions for 2026/27.
Self-Employed National Insurance Calculator
Estimate Class 4 National Insurance contributions from annual self-employed profit for 2026/27.
Sole trader expenses: a practical guide
How allowable business expenses reduce taxable profit, what counts, what does not, and why using the right profit figure matters for every tax estimate.
Making Tax Digital for sole traders
What Making Tax Digital for Income Tax means in practice, who it affects, income thresholds, digital record requirements and how to prepare.
Payments on account: what sole traders need to know
How payments on account work, when they apply, why they catch people out and how to plan your monthly set-aside to cover them.
Self Assessment deadlines for sole traders
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.
AfterTaxSalary.co.uk
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.
UKBenefitsCalculator.co.uk
Use this where self-employed income affects benefits planning or household budgeting.
HomeBuyingCosts.co.uk
Useful once you want to turn stable post-tax profit into a realistic home-buying budget.
Ad placement