To ask the Chancellor of the Exchequer, with reference to HM Revenue and Customs' policy paper ‘Multinational top-up tax: UK adoption of Organisation for Economic Co-operation and Development Pillar 2, published on 20 July 2022, if he will publish the calculations behind the estimate of £8.2m annual costs to businesses affected by the measure.

The £8.2 million average reoccurring annual impact cost was calculated based on HMRC’s Standard Cost Model methodology for determining the administrative impacts of compliant, efficient businesses complying with new measures.