UK Autumn Budget Preview: Fiscal Space and Policy Focus Points

[UK Autumn Budget Preview: Fiscal Space and Policy Focus Points]

(1) ING expects higher debt interest costs to compress the UK's fiscal space from around £24 billion in March to roughly £10 billion, while Chancellor Reeves aims to raise it to £15 billion or higher.

(2) The government is expected to modestly increase cost-of-living-related spending, but the total intervention scale is unlikely to significantly exceed £5 billion, and is likely to be introduced as temporary measures to avoid being counted against key fiscal rules.

(3) The institution expects capital spending to rise by around £10 billion per year, which is not constrained by the fiscal rule requiring the current budget to be in surplus after five years.

(4) To rebuild fiscal space, tax increases of £5 billion to £6 billion are expected, potentially delivered through raising the bank surcharge and broadening the National Insurance tax base.

(5) Overall, the institution does not believe the budget will deliver substantial stimulus, nor will it significantly intensify the already planned fiscal consolidation, with the impact on the Bank of England likely to be fairly limited.

(6) The institution outlines 5 potentially surprising scenarios, with the first being that fiscal space rises rather than falls.

(7) Market consensus expects the Chancellor to face higher debt interest costs and implement modest tax hikes, but there is uncertainty in the Office for Budget Responsibility's assessment of the economy, and the Treasury sometimes exaggerates pessimism to create positive surprises.

(8) If wage growth is revised slightly upward—for example, by 0.6 percentage points in each of the next two years—it could add around £10 billion to fiscal space, almost fully offsetting the impact of rising interest costs.

(9) A downward revision to migration forecasts may also weigh less on fiscal space than feared, while a slightly higher employment starting point and rising global equity markets support capital gains tax forecasts.

(10) The second scenario is spending expansion, where higher inflation boosts revenue through VAT and income tax, but departmental budgets do not automatically rise with prices, leaving operational room for the Treasury.

(11) The institution believes that maintaining the real value of March departmental spending plans would require around £12 billion, making top-up allocations inevitable, but the Treasury may defer tough decisions to next autumn's spending review.

(12) The third scenario is an income tax policy breakthrough beyond campaign promises, the fourth is a significant increase in the minimum wage, and the fifth is a surge in bond issuance. Key items to watch include the budget details on October 28 and the Bank of England's November rate decision.