Question to the HM Treasury:

To ask the Chancellor of the Exchequer, what assessment she has made of the projected fiscal impact of net migration on public spending over the next five years.

The OBR is the government’s official economic and fiscal forecaster. Box 4.5 of the OBR’s published Economic and Fiscal Outlook in March 2024 sets out estimated impacts of migration on the fiscal forecast.

The OBR will produce updated economic and fiscal forecasts in its Economic and Fiscal Outlook, which will be published alongside the Budget on 26 November.