Question to the HM Treasury:

To ask the Chancellor of the Exchequer, if she will make an estimate of the potential cost to the public purse of the Bank of England's Quantitative Tightening programme (a) since July 2024 and (b) since its commencement in November 2022.

Since October 2022, HM Treasury has transferred £85.9bn to the Bank of England to cover losses arising from the Asset Purchase Facility, of which £25bn was transferred since July 2024. This covers losses incurred from net interest costs and the sale and redemption of bonds as the portfolio is unwound.

Data on these quarterly cash transfers between HM Treasury and the Bank of England are made publicly available by the Office for National Statistics (ONS) in its monthly Public Sector Finances publication. The data are available at the following link under the ONS series ID MF7A in worksheet PSA9B:

https://www.ons.gov.uk/economy/governmentpublicsectorandtaxes/publicsectorfinance/datasets/publicsectorfinancesappendixatables110