The total cost of the schemes is now estimated to be £76 billion, with OBR estimating that the extensions to the schemes will add an additional £21 billion to the total. We asked the Departments what calculations they had made of the value for money provided by the schemes. HM Treasury told us that the introduction of the schemes in March did not lend itself to traditional cost-benefit analysis because “it was not a marginal change in policy” but “a major structural change” almost without parallel in recent history. It told us that at the point at which ministers had to decide whether to intervene in the economy the cost of doing so could not be known with any certainty. It explained that it had no way of predicting in March what the impact of the schemes would be, in part because it did not know how long the lockdown would last or what the future costs of the pandemic would be.56