You must send a tax return if, in the last tax year (6 April to 5 April), you were:

– self-employed as a ‘sole trader’ and earned more than £1,000 (before taking off anything you can claim tax relief on)
a partner in a business partnership

– Landlords with property rental income with £1,000 profit or more or
– – £2,500 to £9,999 after allowable expenses
– – £10,000 or more before allowable expenses

You will not usually need to send a return if your only income is from your wages or pension. People that earn more than £100,000 in wages will need to submit a self-assessment tax return to HMRC

You can choose to fill in a tax return to:

– claim some Income Tax reliefs
– prove you’re self-employed, for example to claim Tax-Free Childcare or Maternity Allowance