Ratings agencies S&P and Moody’s have warned about fresh limitations facing the UK’s public finances after Labour announced plans to borrow more at its autumn Budget.
S&P said it views the UK’s fiscal position as “constrained”, following Chancellor Rachel Reeves’s plan to lift borrowing and change the UK’s fiscal rules to allow it.
Meanwhile, Moody’s said the policy posed “an additional challenge for what are already difficult fiscal consolidation prospects”.
In her inaugural spending statement, Ms Reeves increased state spending by almost £70 billion per year – a little over 2% of gross domestic product (GDP) – funded by increased taxes and borrowing.
The scale of extra borrowing – around £32 billion a year on average – saw yields on Government bonds increase as the market responded to the Chancellor’s plans.
Ms Reeves has since played down the impact and sought to offer reassurance of her commitment to “economic and fiscal stability”.
S&P said the increased spending will “mechanically boost growth in the short term, but it’s too early to tell how much this will add to potential output in the long term”.
It said more spending on public services should also “create a more business-friendly environment”, saying improvements to the NHS and schools would also benefit firms.
But “reaping those potential benefits will also depend on whether the spending is deployed in an effective way”.
Moody’s was marginally more critical, saying the spending leaves the Government with only a “limited buffer” to absorb further financial shocks while still complying with its fiscal rules.
Growth from the new spending will be “limited” unless constraints like low productivity are addressed, which it said will be “difficult”.
The Office for Budget Responsibility has predicted the Government’s spending measures will provide a temporary boost to GDP.
But the watchdog forecast downgrades in subsequent years, and said the Budget measures will add to pressure on inflation and interest rates.
