Self-Assessment is a system in the United Kingdom that HM Revenue and Customs (HMRC) uses to collect Income Tax.
If you are a UK tax resident in the reporting year, then you might need to fill in and submit your tax return by the established deadline. If you are unsure whether or not you need to submit a self-assessment tax return, click on the link below to take a quick test.
HMRC Self Assessment test: https://www.gov.uk/check-if-you-need-a-tax-return
