John Healey is plotting a borrowing spree at the Budget in an attempt to improve economic growth. The changes introduced by Ms Reeves mean national investment can be offset against the cost of borrowing, increasing the size of the national debt. Mr Healey hopes the financing could raise more than £9bn a year by 2031, according to The Times. Advertisement AdvertisementAdvertisement AdvertisementAn additional £9bn of borrowing would place further strain on the public finances as the cost of borrowing increases because of the war in Iran and other global instability. The Resolution Foundation think tank told The Times that exploiting the fiscal rules could mobilise an extra £9bn a year.