Free tax tools for sole traders

Calculators and reference pages for UK sole traders and freelancers. Each one says which tax year it uses and where to check the figures on GOV.UK.

No sign-up needed

These open straight away on taxmo.co.uk.

Self-employed take-home calculator: what you keep from your profit after income tax and Class 4 National Insurance, with Scottish income tax bands.
Day rate calculator: the day rate you need for the income you want to keep, after tax, National Insurance and business costs.
PAYE calculator: take-home pay from a salary after income tax, employee National Insurance, student loan and a workplace pension.
Pension tax relief calculator: what a pension contribution costs after relief at source or net pay, and the extra relief you claim at higher rates.
UK tax rates and UK tax deadlines, each with its GOV.UK source.
Tax health check: a quick first look at your tax position from a few short answers.

A VAT calculator (net to gross and back) and an income tax estimator that shows income tax and National Insurance band by band.