The tax year in UK is from 6 April to 5 April the following year. Self Assessment is a system HM Revenue and Customs (HMRC) uses to collect Income Tax. Tax is usually deducted automatically from wages, pensions and savings. People and businesses with other income must report it in a tax return. Who must send a tax return You’ll need to send a tax return if, in the last tax year:   you were self-employed even though the tax due may in fact be ‘nil’ you were a company director you got dividends from shares you had income from abroad that you needed to pay tax on you lived […]