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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).
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.
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.
Check how the government calculates and spends your Income Tax and National Insurance contributions within your Annual Tax Summary.
If you’ve missed Self Assessment deadlines get an estimate of how much you’ll need to pay in penalties and interest
Check your Income Tax, Personal Allowance and tax code for the current tax year. Update details of your income from jobs and pensions.
Use this if your payroll software or the GOV.UK calculator does not calculate your employee’s payments.
How to work out payments and when you should make them if your company’s annual taxable profits are between £1.5 million and £20 million.
Don’t include personal or financial information like your National Insurance number or credit card details.
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