£ UK Tax Tools

Free UK tax calculators – quick answers to the questions people actually Google

Get a clear estimate using official HMRC rates. No sign-up, no data leaves your browser. Choose a calculator below to start.

2026/27 key rates at a glance

£12,570Personal allowance (income tax & NI threshold)
6% / 2%Class 4 NI on £12,570–£50,270 / above
£325,000Inheritance tax nil rate band
40%Standard inheritance tax rate
£3,000Annual IHT gift exemption
4 yearsTime limit to claim a refund
Self-employed

Self-Employed National Insurance Calculator

How much Class 2 and Class 4 National Insurance do you owe on your self-employed profits in 2026/27?

Calculate your NI →
Inheritance

Inheritance Tax Gift Calculator

Is a gift you made in the last 7 years liable for inheritance tax? Includes the annual exemption and taper relief.

Check your gift →
Refund check

Overpaid Tax (Refund) Calculator

Think you paid too much tax? Estimate whether you are owed a refund and learn how to claim it from HMRC.

Check for a tax refund →

Tax guides

Guide

Self Assessment Tax Return Guide

Who must file, key dates, a step-by-step process and how much tax and National Insurance you will pay.

Read the guide →
Guide

Inheritance Tax on Gifts: 7-Year Rule

The exemptions, taper relief tables and the gifting mistakes that cost families thousands.

Read the guide →
Guide

How to Reduce Capital Gains Tax

2026/27 rates and 9 legitimate ways to cut your CGT bill – exemption, ISAs, losses and more.

Read the guide →

Free UK tax calculators by scenario

🧾 Self-employed

🏠 Assets & inheritance

💼 Employment & benefits

  • Car Benefit-in-Kind Calculator
  • Tax-Free Childcare Calculator

🔁 Refunds & allowances

Disclaimer: These calculators provide estimates for general information only and do not constitute financial, tax or legal advice. Our full calculation logic is published on the Methodology page. For personal advice, consult a qualified accountant or tax adviser.