There are deadlines for sending your Self Assessment tax return to HM Revenue & Customs (HMRC) and paying any money you owe.

2011 to 2012 tax year

The Self Assessment deadlines for this tax year have passed. Send your tax return or payment as soon as possible - you’ll have to pay a penalty.

2012 to 2013 tax year

This tax year ended 5 April 2013.

Self Assessment Deadline
Register for Self Assessment You should register by 5 October 2013
Paper tax returns Midnight 31 October 2013
Online tax returns Midnight 31 January 2014
Final payment of any tax due Midnight 31 January 2014

There are exceptions to these deadlines - eg if you want HMRC to collect the tax through your tax code.

2013 to 2014 tax year

This tax year ends 5 April 2014.

Self Assessment Deadline
Register for Self Assessment You should register by 5 October 2014
Paper tax returns Midnight 31 October 2014
Online tax returns Midnight 31 January 2015
Final payment of any tax due Midnight 31 January 2015

There are exceptions to these deadlines - eg if you want HMRC to collect the tax through your tax code.

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