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Use HM Revenue and Customs’ (HMRC) tax checker to get an estimate of how much Income Tax you should have paid in a previous tax year.
Estimate how much Income Tax and National Insurance you can expect to pay for the current tax year (6 April 2025 to 5 April 2026).
If you’ve missed Self Assessment deadlines get an estimate of how much you’ll need to pay in penalties and interest
Find out how much you need to put aside for your Self Assessment tax bill by using HM Revenue and Customs' (HMRC's) Self Assessment tax calculator.
Value the estate of someone who's died so that you can get probate: work out if tax is due, check how to report the estate's value, complete the correct form.
Millions of taxpayers filed their Self Assessment tax return for the 2024 to 2025 tax year by the deadline.
Check how the government calculates and spends your Income Tax and National Insurance contributions within your Annual Tax Summary.
Find and use tools and calculators that will help you work out your tax.
How to update your details online if the estimate of your income for the year is going to be more or less than expected.
The next release of the estimated cost of tax reliefs statistics will be published at 9.30am, 7 December 2023. This publication was previously released in January 2023. The release includes cost estimates for structural and non-structural tax reliefs for the...
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