If you’re registered for Self Assessment, you’ll usually get a letter in April or May from HM Revenue and Customs (HMRC) telling you to send a tax return. You should send your tax return, even if you don’t have any tax to pay.
Filing your tax return
The 2013 to 2014 tax year ended 5 April 2014. The main deadlines are:
• Paper tax returns – midnight 31 October 2014
• Online tax returns – midnight 31 January 2015
• Final payment of any tax due – midnight 31 January 2015
If you miss the paper deadline, send your return online instead to avoid a penalty.