Muras Matters: Interest Rate Increase on Overdue Tax and Overpaid Tax


As a result of the recent increase in the Bank of England Base Rate, the interest rate applicable to overdue tax is also going up.

However, unlike with previous increases H M Revenue & Customs (HMRC) are also increasing the interest rate on overpaid tax, having been held at 0.5% since September 2009.


The interest rate charged by HMRC on late payment of tax will increase from 3.75% per annum to 4.25% from tomorrow, Tuesday 23rd August. This is the sixth increase since the start of 2022.

The increased interest rate will apply to the following overdue taxes:

  • Income Tax
  • Capital Gains Tax
  • Stamp Duty
  • Stamp Duty Land Tax
  • National Insurance Contributions
  • Corporation Tax
  • Inheritance Tax
  • VAT

In addition, for the first time since September 2009 the interest rate on overpaid tax is also going up and will increase from 0.5% to 0.75%.

If you have any queries or would like more information regarding tax payments or related surcharges, please speak to your usual contact at the firm.

To see our other news items please visit our Muras Baker Jones – Blog.