There are deadlines for sending your Self Assessment tax return to HM Revenue and Customs (HMRC) and paying any money you owe.
The last tax year started on 6 April 2014 and ended on 5 April 2015.
|Register for Self Assessment||You should register by 5 October 2015|
|Paper tax returns||Midnight 31 October 2015|
|Online tax returns||Midnight 31 January 2016|
|Pay the tax you owe||Midnight 31 January 2016|
There’s an additional payment deadline of 31 July if you make advance payments towards your bill (known as ‘payments on account’).
When the deadline is different
Send your online return by 30 December if you want HMRC to automatically collect tax you owe from your wages and pension. You must be eligible.
Send a paper tax return by 31 January if you’re a trustee of a registered pension scheme or a non-resident company. You can’t send a return online.
HMRC might also email or write to you giving you a different deadline.
2013 to 2014 tax year and earlier
The Self Assessment deadline for these tax years has passed. Send your tax return or payment as soon as possible - you’ll have to pay a penalty.