UK Tax Calculators Built From Official Sources
calculatetax.co.uk provides free UK calculators for tax, pay, benefits, business costs, motoring charges
and personal finance decisions. Each published calculator is built from official or authoritative sources
such as HMRC, GOV.UK, NHS Employers, the Student Loans
Company, DVLA, TfL and relevant local authority guidance.
We show the assumptions, rates, thresholds and source notes behind each estimate, so you can understand
how the result was calculated. The tools are reviewed when major Budgets, Autumn Statements, government
consultations or official rate changes affect the underlying rules.
Our aim is to build a comprehensive, practical UK calculator suite that helps people check everyday money
decisions clearly. The results are estimates, not financial, tax or legal advice, but every page is designed
to explain the calculation honestly and point you back to the official source where it matters.