The composition of this fiscal consolidation is unknown. But it matters in assessing its economic impact. Press reports suggest that tax rises will account for about half of this consolidation while the other half will be raised from other government spending cuts.
Even before these fiscal measures the economy faced a challenging backdrop. Growth was forecast to be very low through 2023 as the lagged effect of higher rates and the impact of higher energy prices raise production costs and sap broader global economic momentum.
The Office for Budget Responsibility (OBR) estimates that these measures would depress GDP by 0.25% by 2023-24 and 0.50% in 2024-25. This builds on the modest fiscal squeeze planned in the March 2022 Budget.
Regarding the impact on inflation, the Chancellor also has signalled that the previously announced Energy Price Guarantee will be scaled back and reformed from April. While there is a lot of uncertainty, that could lead to a higher rate of inflation than otherwise would have been the case.
Overall, we expect the OBR to revise down its forecasts for the UK economy to reflect the general deterioration in global economic momentum and the impact of monetary policy tightening by the Bank of England. We now expect the UK economy to contract by 1.2% in 2023 and another 0.4% in 2024.