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The Office for Budget Responsibility (OBR) has issued a stark warning that the ongoing conflict in Iran could exert a “very significant” impact on the UK economy. This comes as the agency revises its inflation and economic growth forecasts, citing heightened uncertainty linked to recent surges in oil and gas prices stemming from the Middle Eastern turmoil. As the global landscape shifts, the repercussions for the UK could be profound, affecting inflation rates and employment figures in the coming years.
Economic Forecasts Adjusted Amid Geopolitical Instability
In its latest assessment, the OBR has indicated that the outlook for inflation in the UK is becoming increasingly unpredictable due to the escalating conflict in Iran. Recent military actions have led to notable spikes in energy prices, triggering concerns about the broader economic implications. David Miles, a member of the OBR’s budget responsibility committee, highlighted that the predictions regarding inflation, which had previously been optimistic, are now clouded by this volatility. “Our central expectation had been that inflation would fall back towards the Bank of England’s 2% target early this year,” Miles noted, adding, “There must be more uncertainty around that right now.”
Despite these challenges, the OBR has adjusted its inflation forecast for this year, now projecting a drop to 2.3% in 2026, a slight decrease from the earlier estimate of 2.5%. This revision reflects a combination of factors, including a slowdown in economic activity and declining food and energy prices. The Bank of England has previously suggested that inflation could dip below the target rate of 2% as early as April, contingent upon energy market stability.
Growth Projections Paint a Bleaker Picture
Alongside inflation forecasts, the OBR has also cut its economic growth projections for the UK. The agency now anticipates a GDP growth rate of just 1.1% in 2026, down from a prior estimate of 1.4% made in November. This downgrade stems from a variety of factors, including a slowdown in growth observed late last year, a loosening labour market, and less-than-encouraging business survey data.

However, the OBR has indicated a more optimistic outlook for subsequent years, projecting growth of 1.6% for both 2027 and 2028. Chancellor Rachel Reeves reiterated her commitment to a “right economic plan,” asserting that while growth may be sluggish in the near term, recovery is on the horizon.
Unemployment Trends and Fiscal Projections
The OBR report also highlighted a concerning trajectory for unemployment, predicting a peak rate of approximately 5.33% in 2026. This marks a notable increase from the current unemployment rate of 5.2%, which the Office for National Statistics (ONS) reported as the highest in five years. The forecasts suggest a gradual decline in unemployment thereafter, with estimates of 4.9% in 2027 and 4.4% in 2028.
In light of these adjustments, the government’s borrowing projections have also been revised downwards for each year until 2031, providing a potential cushion for the Chancellor. The easing of yield on government bonds has broadened the fiscal headroom to £23.6 billion, an improvement from the £21.7 billion projected in November.
Elliott Jordan-Doak, a senior UK economist at Pantheon Macroeconomics, remarked that the Chancellor’s spring statement contained few surprises, characterising it as a “boring budget” that was largely anticipated by the market. He pointed out that many fiscal forecasts now seem outdated due to the rapid developments in the Middle East.
Why it Matters
The implications of the current geopolitical tensions extend far beyond the immediate crisis. As the UK grapples with inflationary pressures and a sluggish growth forecast, the potential for a prolonged conflict in Iran raises critical questions about economic resilience. The interplay between global energy prices and domestic economic stability will be crucial in shaping the UK’s financial landscape in the years to come. Policymakers face the daunting task of navigating these challenges while ensuring that the recovery from the pandemic does not falter amidst external shocks. The ability to adapt and respond to these evolving economic conditions will determine the trajectory of the UK economy in an increasingly interconnected world.
