Do you need to complete a Self Assessment tax return?

There are many reasons why HMRC will require you to complete a Self Assessment tax return. Among these are being a shareholder and receiving dividend income, receiving income from letting property, getting untaxed income that can’t be collected through your PAYE tax code, or making a Capital Gain following the sale of an asset. In addition to this, a tax return will be needed if you have multiple sources of income, and if you have dual residency, or are working abroad.