Question to the HM Treasury:

To ask the Chancellor of the Exchequer, with reference to page 31 of the Office for Budget Responsibility's publication entitled Economic and fiscal outlook- November 2023, published on 22 November 2023, whether his Department holds information on the assumptions underpinning the forecast of future net migration.

The independent Office for Budget Responsibility (OBR) is responsible for producing forecasts for the UK economy and public finances and the underlying assumptions.

In its November 2023 Economic and Fiscal Outlook, the OBR set out its forecast for net migration, and the assumptions it is based on. This is available here:

CP 944 – Office for Budget Responsibility – Economic and fiscal outlook – November 2023 (obr.uk)