Use this tool to find out if you need to send a tax return for the 2017 to 2018 tax year (6 April 2017 to 5 April 2018).

The tool is not connected to HM Revenue and Customs’ (HMRC) online services, and you do not need a Unique Taxpayer Reference (UTR) to use it.

You can also see a list of who must send a tax return.

This tool does not tell you how to claim tax relief, apply for Marriage Allowance or claim a tax refund.

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