#2026/347The Taxes (Interest Rate) (Amendment) Regulations 2026
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These regulations amend the Taxes (Interest Rate) Regulations 1989 to update the official interest rates used for calculating interest on late payments and repayments of Domestic Top-up Tax and Multinational Top-up Tax. Made on 24 March 2026 and laid before the House of Commons on 26 March 2026, they come into force on 17 April 2026. The changes are enabled by amendments introduced in the Finance (No. 2) Act 2023 and the Finance Act 2026 to section 178 of the Finance Act 1989.
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Key Changes
- Amends the Taxes (Interest Rate) Regulations 1989 to include specific interest rate rules for Domestic Top-up Tax and Multinational Top-up Tax
- Updates official interest rates applicable to late payments and overpayments of the new top-up taxes
- Regulations come into force on 17 April 2026
+ 2 more changes with Pro
Obligations
What this law requires
Apply updated official interest rates for calculating interest on late payments of Domestic Top-up Tax from 17 April 2026
Apply updated official interest rates for calculating interest on late payments of Multinational Top-up Tax from 17 April 2026
Apply updated official interest rates for calculating interest on repayments of Domestic Top-up Tax from 17 April 2026
Apply updated official interest rates for calculating interest on repayments of Multinational Top-up Tax from 17 April 2026