Free UK Tax CalculatorsThat Do The Sums
Find your take-home pay, income tax, National Insurance and capital gains with clear, step-by-step results. Built around the 2026/27 UK tax year.
Popular Calculators
Start with the tools most people use to work out what they owe.
See your take-home pay after tax, NI and pension.
Open calculatorFind out how much tax you owe in each band.
Open calculatorEstimate CGT on shares, property and other assets.
Open calculatorWork out your Class 1 National Insurance bill.
Open calculatorAll our UK tax calculators in one place
From everyday salary sums to estate and property planning, pick a calculator for the 2026/27 tax year and get your answer in seconds.
Salary Calculator
Work out your yearly, monthly, weekly and daily take-home pay after income tax, National Insurance, pension and student loan.
Open calculatorIncome Tax Calculator
See exactly how much income tax you pay in each band for England, Wales, NI or Scotland.
Open calculatorNational Insurance Calculator
Calculate your employee Class 1 National Insurance contributions.
Open calculatorAfter Tax
Instantly see your net salary after all deductions and the percentage you keep.
Open calculatorGross Salary Calculator
Know the take-home pay you want? Find the gross salary you need to earn.
Open calculatorTax Code Checker
Enter your tax code (e.g. 1257L) to understand your allowance and what it means.
Open calculatorPro Rata Calculator
Convert a full-time salary into your pro rata salary based on days or hours worked.
Open calculatorMarriage Allowance Calculator
Check whether you and your partner are eligible and how much you could save.
Open calculatorOvertime Pay Calculator
Calculate overtime pay at time-and-a-half, double time or a custom multiplier.
Open calculatorPension Tax Relief Calculator
See how much tax relief you get on your pension contributions.
Open calculatorUK Tax Guides
Plain-English explainers for the rules behind the numbers — tax codes, Scottish tax, salary sacrifice and more.
Why crossing £100,000 can cost you more than the headline 40% rate suggests, and what you can do about it.
Scotland sets its own Income Tax bands. Here's exactly how they differ from the rest of the UK, and who ends up paying more.
1257L is the standard tax code for most UK employees — here's exactly what the numbers and letter mean, and when yours might look different.
Add Our Tax Calculators To Your Site
Place a working calculator on your website or blog with one line of code. Each widget fits any screen size and updates whenever we do.
Salary Calculator
Turn gross pay into take-home pay
- Gross to net pay
- Tax and NI deductions
- Pension and student loan
- Scottish tax bands
Income Tax Calculator
Show tax band by band
- England and Scotland bands
- Personal Allowance taper
- Effective tax rate
- 2026/27 rates
NI Calculator
Work out National Insurance
- Class 1 employee rates
- Monthly and yearly totals
- Clear step-by-step split
- Instant results
Ready to add a calculator to your site?
Setup takes about a minute: copy one line of code and paste it into your page where you want the calculator to appear.
Made for people who earn, save and invest in the UK
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