Question to the HM Treasury:

To ask the Chancellor of the Exchequer, if he will place a copy of any interim or final evidence held by his Department on the effectiveness of the Corporation Tax Super-deduction in stimulating business investment, including quantitative data, process or outcome evaluation, in the Library.

In the latest Economy and Fiscal Outlook, the OBR have said that the super-deduction and the easing of global supply bottlenecks means they still expect historically high growth in business investment over 2022. The OBR have revised down the anticipated peak amount of business investment brought forward by the super-deduction to 5 per cent in 2022-23 (from the 10 per cent previously assumed).

A full evaluation of the effectiveness of the super-deduction in stimulating business investment will require HMRC to hold corporate tax returns for the financial years 2021-22 and 2022-23. Any externally commissioned evaluation will be published in the usual way, in line with the Government Social Research Publication Protocol.