Why the defence pledge creates unprecedented pressure
The Institute for Fiscal Studies warns that compensating for inflation shocks and funding the UK's pledge to increase defence spending to 3% of GDP by 2030 would require tax rises or benefit cuts worth approximately £35 billion. The thinktank's pre-budget report stresses that without a clear plan to cover these spending pressures, the upcoming budget risks becoming a work of fiction. Urgent decisions are needed now to avoid unrealistic fiscal projections.
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How realistic is the current budget approach?
Raising defence spending to 3% of GDP by 2030 represents a substantial increase from current levels, requiring sustained annual growth in military budgets. The IFS notes this pledge comes at a time when inflation has already forced unplanned spending across departments. Combining these pressures means the Treasury must find savings or raise revenue elsewhere, as borrowing alone cannot cover the gap without undermining fiscal credibility.
The thinktank argues that presenting a budget without addressing these specific pressures amounts to wishful thinking. It urges the government to specify which taxes will rise or which benefits will be constrained to fund the defence increase and inflation compensation. Without such transparency, the budget lacks credibility and fails to prepare the public for necessary trade-offs.
What is the £35bn figure based on? The £35bn estimate combines the cost of offsetting inflation's impact on public services and the additional funding needed to reach 3% of GDP for defence by 2030, calculated as necessary tax increases or benefit reductions.
Frequently Asked Questions
Why does the IFS call the budget a work of fiction? Because without clear plans to cover inflation and defence costs, the budget relies on unrealistic assumptions about available funding, making it more speculative than a credible financial plan.
What alternatives exist to tax rises or benefit cuts? The IFS does not identify viable alternatives within the current fiscal framework, stating that borrowing more would breach fiscal rules and spending cuts elsewhere would be insufficient to meet both pressures simultaneously.