Permanent increase to penalty interest rates
The new tax year saw a change to the way interest on late paid taxes is calculated. What’s changed and what are the new charges?
Prior to 2025/26, interest was charged at the Bank of England base rate plus 2.5% on most underpaid taxes. In a push for unpaid tax bills to be settled, it was announced at the 2024 Autumn Budget that this would change to the base rate plus 4% from 6 April 2025. The government says the rate of late payment interest encourages prompt payment and ensures fairness for those who pay their tax on time.
From 6 April 2025 the following rates apply:
- Late corporation tax paid quarterly - 7%
- Late payment interest on other taxes - 8.5%
There is no corresponding change to the way repayment interest rates are calculated, i.e. the base rate minus 1%, with a lower limit of 0.5%.
Related Topics
-
Tribunal rejects reliance on adviser as reasonable excuse
A recent First-tier Tribunal decision has confirmed that relying on an accountant does not automatically amount to a reasonable excuse for missing a self-assessment deadline. The case highlights the limits of delegating tax responsibilities. What does this mean in practice?
-
HMRC issues new wave of offshore “nudge” letters
HMRC has issued a further round of “nudge” letters targeting individuals it believes may have undeclared offshore income or gains. The letters form part of HMRC’s ongoing use of data from international information exchange agreements. What should you do if you receive one?
-
Payroll changes for 2026/27
As the end of 2025/26 draws closer, HMRC has published a raft of updates and reminders for employers. Which changes do you need to be aware of that might impact your payroll in 2026/27?
This website uses both its own and third-party cookies to analyze our services and navigation on our website in order to improve its contents (analytical purposes: measure visits and sources of web traffic). The legal basis is the consent of the user, except in the case of basic cookies, which are essential to navigate this website.