Sending it late
£100 straight away. After 3 months, £10 a day for up to 90 days (£900). After 6 months, 5% of the tax due or £300, whichever is greater, and the same again after 12 months.
Free Self Assessment penalty calculator
What does a late tax return cost?
A Self Assessment return sent online after 31 January is £100 late, and it grows. Enter when it was sent and the tax due - and when you paid, if that was late too - and see the penalties on HMRC's scale.
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HMRC's scale
It starts at £100, and it grows.
Paying it late
5% of the tax unpaid at 30 days, at 6 months and at 12 months, and interest on what is owed.
In Making Tax Digital
If you use Making Tax Digital for Income Tax, a late return earns a penalty point instead, and a £200 penalty at four. How MTD's penalties work.
HMRC's own scale: Self Assessment penalties. You can appeal if you had a reasonable excuse.
What Stoneledger does
Your return ready long before 31 January.
- The tax as it builds, all year, from your own records.
- Every deadline in your calendar, with a reminder before it.
- The tax return from the same books, so there is nothing to start in January.
Your tax return, ready long before 31 January.
The figures built all year, so the deadline is a formality.