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Late filing penalty

A late filing penalty is a fee charged by HMRC if you file your tax return late.

What is very important for you to know:

  • there is a separate fine for paying your tax bill late, and they get added up. You also need to pay interest when you pay late
  • you get fined for filing late even if you owe no money in taxes – but had to file for another reason, for example, if you were already registered for Self Assessment.

The late filing penalty starts at £100 if you’re a day late and it can increase all the way to £1,600 for a whole year. Use this late tax penalty calculator to get an estimate of how much you might have to pay.

You can appeal a fine with HMRC but you better have a good reason: things like fire, flood, bereavement, and illness.

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