CH193280 - Penalty reform - penalties for failure to pay VAT on time from 1 January 2023: penalty assessments: supplementary assessments

NB: “These rules currently only apply to VAT, for VAT periods starting on or after 1 January 2023. These rules will come into force for other tax regimes at a future date. You must check the date from which these rules apply for the tax or duty you are dealing with”

A supplementary penalty assessment may be made in respect of a penalty if an earlier penalty assessment is based on an amount of tax due that is found by HMRC to be an underestimate, or insufficient.

A supplementary penalty assessment is an additional penalty assessment with its own appeal rights.

FA21/SCH26/PARA17(1)