To ask Her Majesty's Government what assessment they have made of the prediction by the Institute for Fiscal Studies that a no-deal Brexit would increase borrowing to £92 billion a year and total debt as a share of national income would rise by 2024 to 83 per cent.

The government’s medium-term economic and fiscal forecasting is undertaken by the Office for Budget Responsibility in line with its statutory duty. In line with its remit, the OBR’s forecasts include the economic and fiscal impact of government policy on EU exit where the effects can be quantified with reasonable accuracy. The OBR has said that it will adjust its Brexit assumptions when more detail is available on the future trade and migration relationship between the UK and EU.

The Office for Budget Responsibility will produce a new economic and fiscal forecast at the forthcoming Budget.