keep The Taxes (Interest Rate) (Amendment No. 2) Regulations 1998
These Regulations (SI 1998/3115) amend the Taxes (Interest Rate) Regulations 1989 to set statutory interest rates for corporate tax instalment payments under the Corporation Tax (Instalment Payments) Regulations 1998. They establish rates of 8.25% and 8.5% per annum for underpayments by large and other companies respectively, 6% for overpayments of instalments, and 5% for overpayments after nine months. The rates are adjusted quarterly based on Bank of England Monetary Policy Committee meetings using formulas RR+2, RR+2.5, RR-0.25, and RR-1.
Without this regulation, there would be no statutory mechanism for determining interest on corporate tax underpayments and overpayments, creating uncertainty for businesses. Deleting it would leave a gap in the tax administration framework. While government-set interest rates involve some distortion, this is a core sovereign function and the rates are sensibly tied to market reference rates rather than arbitrarily set. The regulation is targeted and technical, not a broad regulatory burden on economic activity.