The DMO, the low-profile unit within HM Treasury responsible for the national debt, raised an astonishing £58bn from selling gilt-edged government securities in April, compared with an average of £11bn obtained each month in the financial year to March. The size and frequency of gilt auctions went from an average of £2.6bn from one auction a week in 2019-20 to £3.2bn from four auctions a week in April.
The scale of the challenge became apparent in March as the Government announced a series of eye-watering fiscal interventions, with the DMO going overdrawn by £18.5bn to keep the Government supplied with cash in advance of ramping up gilt auctions in April.
Fortunately, the DMO is able to finance the Government at ultra-low rates of interest at the moment, with auctions oversubscribed and yields on 10-year gilts at just over 0.3% during the course of April. If maintained, the incremental cost of the additional £384bn in public sector net debt in 2020-21 set out by the Office for Budget Responsibility in its coronavirus reference scenario would be less than £2bn a year.
A legacy of debt for future generations to deal with, but - at least for now - a relatively cheap burden to service.