3. Sending a return

Once you’ve registered, you can send your tax return using HM Revenue and Customs’ (HMRC) free Self Assessment online service.

You can get help with filling in your return, eg from HMRC or by getting an accountant to do your return for you.

You then have to pay your bill by the deadline.

Using software or paper forms

You can choose to send any Self Assessment return using software or paper forms.

You must use one of these options to send returns:

  • for a partnership
  • for a trust and estate
  • if you get income from a trust or you lived abroad as a non-resident, or if you’re a Lloyd’s underwriter or religious minister

You must use a paper form if you need to send a:

The deadline for paper forms is 31 October (or 31 January if you’re a trustee of a registered pension scheme or a non-resident company).