CH73100 | Penalties for Failure to Notify: Calculating the penalty: Penalty reductions for quality of disclosure: Introduction
From HM Revenue & Customs · Compliance Handbook
The penalty chargeable for a failure to notify, see CH71220, is calculated by applying an appropriate percentage to the potential lost revenue (PLR).
The maximum penalty percentage, see CH73200, depends on whether the failure to notify was deliberate and concealed, deliberate but not concealed or non-deliberate.
The maximum penalty percentage can be reduced depending upon the quality of disclosure, CH73220. A person makes a disclosure by
The penalty percentage cannot be reduced below a minimum amount which is determined by
The maximum and minimum penalty percentages for each type of failure are set out in CH73200. However, where the failure to notify involves an offshore matter and the tax at the stake is income tax or capital gains tax you must use the guidance on maximum and minimum penalty percentages at CH114600+.
Where a person has taken a significant period to correct their non-compliance in relation to either an onshore or offshore matter, or they would previously have been able to make a disclosure through one of HMRC’s offshore disclosure facilities, they can no longer expect HMRC to give them the full reduction for the quality of disclosure. A ‘significant period‘ is normally considered to be over 3 years but may be less where the overall disclosure covers a longer period.
If you consider that this may apply to your case, see CH73360 for further guidance.
See CH73400 if a person asks for a special reduction of the penalty.