Updated Apr 2026
Formula v1.0
Instant Calculation
Income Tax Calculator UK
Calculate your UK income tax liability for the 2026/27 tax year.
Ready to Calculate
Adjust the inputs on the left and press Calculate to see your personalized results here.
Income Tax Calculator UK – Estimate Your Tax Based on UK Bands
The Income Tax Calculator UK calculates how much tax you owe using official UK tax bands from GOV.UK.
UK income tax is progressive, meaning different portions of your income are taxed at different rates.
Frequently Asked Questions
What is personal allowance?
Tax-free income threshold.