Concerns over potential tax increases are mounting after Chancellor Rachel Reeves presented her Spring Statement, with economists warning that financial pressures could force the government to raise taxes in the autumn.
Despite welfare reductions and changes to departmental spending, Reeves is on track to meet her self-imposed fiscal rules. However, uncertainty surrounding US President Donald Trump’s proposed tariffs and their global impact could limit her financial flexibility, according to the Office for Budget Responsibility (OBR).
Growth Forecast Slashed
The OBR has cut its UK economic growth forecast for 2025 to 1%, down from the 2% estimate in October. Reeves, who has emphasized economic growth as a key priority, admitted she was “not satisfied” with the numbers.
Despite the downgrade, growth projections for the following years have been revised slightly upward:
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1.9% in 2026
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1.8% in 2027
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1.7% in 2028
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1.8% in 2029
Tight Fiscal Headroom Raises Concerns
Reeves faced speculation over whether she could adhere to her key fiscal rules:
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Not borrowing for daily public spending.
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Reducing government debt as a share of national income by the end of this parliament.
The OBR initially estimated that she had £9.9 billion in fiscal headroom by 2029-30, but rising government borrowing costs meant she would have missed the rule by £4.1 billion. However, Reeves claimed that her newly announced spending reductions and welfare reforms had restored the full £9.9 billion buffer.
The OBR cautioned that risks remain, stating that a worst-case scenario from Trump’s tariffs could erase much of the chancellor’s financial flexibility.
Economists Warn of Possible Tax Hikes
Some experts believe Reeves may have little choice but to increase taxes later this year.
“Leaving yourself with such little fiscal headroom makes you vulnerable to economic shocks,” said Paul Johnson, director of the Institute for Fiscal Studies.
The £9.9 billion margin is one of the lowest levels recorded since 2010, compared to an average of £30 billion over the past 15 years.
“We can expect months of speculation over which taxes could be increased in the autumn,” Johnson added.
Paul Dales, chief UK economist at Capital Economics, also warned that the government may have to break its election promises and introduce household tax increases, given the limits on further spending cuts and borrowing.
Housing, Inflation, and Household Incomes
Reeves pointed to planning reforms and housebuilding targets as part of her economic strategy. The OBR now expects these measures to increase GDP by 0.2% by 2030 and 0.4% within a decade.
The chancellor also noted that housebuilding is set to reach a 40-year high of 305,000 homes annually by the end of the forecast period. Labour has pledged to deliver 1.5 million homes by 2029-30, and Reeves said the party was “within touching distance” of that goal.
On inflation, the OBR raised its 2025 forecast to 3.2%, though it expects the Bank of England’s 2% target to be reached by 2027.
Real household disposable income is expected to rise by an average of 0.5% annually, with higher wages making households £500 better off per year by 2029 compared to earlier forecasts.
