A self-assessment tax return (often simply referred to as a tax return) is a form issued by HM Revenue and Customs (HMRC), which is used to collect information on your income and capital gains for a particular tax year. The information you provide on this form is used to calculate your tax liability for the year.
If you receive a tax return or are notified that you need to file a tax return, you must complete the return, even if you have no taxable income for the year. If you have been contacted about filing a tax return and do not understand why, you should contact HMRC.
