Find out whether or not you need to fill out HMRC's self-assessment tax return for the 2020-21 tax year.
Put these key dates for 2019-20 self-assessment tax returns in your diary to avoid a penalty for missing the deadlines
Find out how to make the process of submitting your tax return online as simple as possible.
Find out what a unique tax reference (UTR) number is, how you can get one from HMRC and what you'll need to use it for.
Put these key dates for 2018-19 self-assessment tax returns in your diary to avoid a penalty for missing the deadlines.
Find out how to complete paper tax return, plus an explanation of any supplementary pages you might need