Use our 2018/19 income tax calculator to work out how much income tax you'll pay from 6 April 2018, and what the income tax rates are for the 2018/19 tax year.
Use Which?'s income tax calculator 2019/20 to work out how much of your salary you'll keep from 6 April 2019, and what income tax rates will be in 2019/20.
Discover how much money you can earn before being charged income tax, and the different types of allowances and reliefs you may be able to claim to reduce your tax bill.
Find out what tax reliefs there are, how they work to reduce your tax bill and whether you’re eligible to claim them.
Discover how much tax you can expect to pay on various forms of income, such as wages, savings and property.
Find out which work-related expenses are eligible for tax relief and how to claim them.
How to work out how much tax you'll pay after all of your tax-free allowances
Find out about marriage tax allowance – what it is, how it works and whether you might be eligible to claim it – plus, other tax breaks available for married couples and civil partners.
If you live in Scotland, you'll pay income tax under a slightly different system to the rest of the UK. Find out the rates for the 2019/20 tax year
Incomes taxes are being devolved to the Welsh government from 6 April 2019. Find out how the changes will affect you.