Income Tax - Which?

Find out how much income tax you have to pay, what income is completely free of tax and how to calculate your tax bill.

How much income tax will I need to pay?

Use our calculator to work out the income tax and National Insurance you'll pay in the 2018/19 tax year.

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Tax rates and allowances

Income tax calculator 2018/19 Tax-free income and allowances Income tax calculator 2019-20 and 2020-21

All 11 guides

Tax codes & PAYE

Understand your tax code Emergency tax codes What is PAYE?

All 7 guides

Submit your tax return online with Which?

We make it easier to complete and submit your return direct to HMRC

Self-assessment tax return

How to fill in a self-assessment tax return Tax returns 2019: important deadlines What is a UTR number?

All 7 guides

Income tax for the self-employed

How to file a self-employed tax return Self-employed capital allowances Self-employed income tax

All 6 guides

Income tax on your pension

Tax on pensions Married couple's allowance Age-related tax allowance

All 3 guides

Tax on property and rental income

How rental income is taxed Expenses and allowances landlords can claim Mortgage interest tax relief explained

All 5 guides

Income tax on savings and investments

Types of saving and investment income The personal savings allowance explained Tax-free savings

All 6 guides

Which? Limited (registered in England and Wales number 00677665) is an Introducer Appointed Representative of Which? Financial Services Limited (registered in England and Wales number 07239342). Which? Financial Services Limited is authorised and regulated by the Financial Conduct Authority (FRN 527029). Which? Money Compare is a trading name of Which? Financial Services Limited. Registered office: 2 Marylebone Road, London NW1 4DF.