> 2010 Tax Return deadline
January 31, 2012
31 January: online returns
Your online tax return must reach HMRC by midnight on 31 January.
You only have longer than this if you received the letter, telling you to send a tax return, after 31 October. In this case you'll have three months from the date you received that letter.
There's an earlier deadline of 30 December if you want HMRC to collect any tax you owe through your tax code
Penalties if you miss the tax return deadline
If you miss the deadline, the longer you delay, the more you'll have to pay. So it's important to send your tax return to HMRC as soon as you can.
Penalties for missing the tax return deadline
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1 day late
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A fixed penalty of £100. This applies even if you have no tax to pay or have paid the tax you owe.
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3 months late
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£10 for each following day - up to a 90 day maximum of £900. This is as well as the fixed penalty above.
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6 months late
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£300 or 5% of the tax due, whichever is the higher. This is as well as the penalties above.
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| 12 months late |
£300 or 5% of the tax due, whichever is the higher. In serious cases you may be asked to pay up to 100% of the tax due instead. These are as well as the penalties above. |