For the 2012-13 tax year, the deadline for online returns is midnight on 31 January 2014. There are very few exceptions. As an example, the deadline may be later if HMRC sends you the letter, telling you to complete a tax return, after 31 October. In this case the letter will tell you the deadline - it is usually 3 months from the date of the letter.
There's also an earlier deadline of 30 December if you want HMRC to collect any tax you owe through your tax code. You can ask for this if you owe less than £3,000. Please show this clearly on your tax return. HMRC will try to collect the tax due through your code, but they can't always do so.
For last minute help with your tax return contact bestof members Melville and Co and Lamont Pridmore – just visit the accountants category using the link below.