Key Dates for Completing and Sending Back Your Tax Return.
6 April 2012
This is when a new tax year starts. A 2011-12 Tax Return or Notice to Complete a Tax Return (SA316) will be sent out to all people who get a tax return each year.
31 July 2012
The second payment on account for tax year 2011/12 is due for payment
31 October 2012
If you are completing a paper Tax Return for 2011-12, you must send it back by this date.
30 December 2012
If you send back your Tax Return over the Internet you must send it back by this date if you want HMRC to collect tax through your tax code, if possible, where you owe less than £2000.
31 January 2013
This is the deadline for sending back your completed 2011-12 Tax Return online. Also balancing payment for 2011/12 is due along with 1st payment on account for 2012/13.
28 February 2013
If you were sent a Tax Return by 31 October 2012 a 5% surcharge will be applied to any outstanding tax for 2011/12 if it remains unpaid at this time.
6 April 2013
The new tax year starts.
A Tax Return or Notice to Complete a Tax Return (SA136) will be sent out to all people who meet the criteria to get a Tax Return each year.