Updated Apr 2026 Formula v1.0 Instant Calculation

Income Tax Calculator UK

Calculate your UK income tax liability for the 2026/27 tax year.

Secure & Free · Instant Results

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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.