UK GDP Growth in Q1 Masks Looming Slowdown Risks Amid Iran Conflict

The UK economy posted a stronger-than-expected GDP expansion in the first quarter of 2025, but the positive headline figures may conceal mounting headwinds from escalating geopolitical tensions in the Middle East, particularly the ongoing conflict involving Iran. Economists are now warning that the second half of the year could see a marked deceleration.

Q1 Performance Exceeds Forecasts

Preliminary data from the Office for National Statistics indicated that the UK economy grew by 0.6% in Q1, surpassing the 0.4% consensus forecast. This was driven by a rebound in consumer spending, a resilient services sector, and a modest uptick in business investment. The figures provided a temporary boost to government fiscal projections and offered a narrative of economic recovery following a stagnant 2024.

However, the quarterly data largely predates the sharpest escalation in the Iran conflict, which intensified in late March and early April. The lag means the full economic impact is not yet reflected in the headline numbers.

Geopolitical Shockwaves Threaten Momentum

The Iran conflict has introduced multiple channels of economic disruption. Oil prices surged above $95 per barrel in April, increasing input costs for UK manufacturers and squeezing household budgets at the pump. Supply chain disruptions through the Strait of Hormuz, a critical chokepoint for global energy shipments, have begun to affect delivery times and raw material availability.

Consumer confidence, which had been slowly recovering, dipped sharply in April, according to GfK’s long-running survey. Analysts at the National Institute of Economic and Social Research (NIESR) now project Q2 growth could fall to 0.1% or even contract, depending on the duration of the conflict.

Inflation and Interest Rate Implications

Higher energy prices are feeding through to inflation, which had been trending toward the Bank of England’s 2% target. The Monetary Policy Committee now faces a difficult balancing act: holding rates steady to combat renewed price pressures risks further dampening growth, while cutting rates to support the economy could fuel inflation. Markets have pared back expectations for rate cuts in the second half of 2025.

What This Means for Businesses and Households

For UK businesses, particularly in manufacturing, logistics, and retail, the outlook has darkened. Input cost inflation is accelerating, and uncertainty is delaying investment decisions. Small and medium-sized enterprises, which have less capacity to absorb shocks, are especially vulnerable.

Households face renewed pressure on real incomes. Energy bills, while partially capped, are expected to rise in the autumn, and food price inflation remains sticky. The combination of stagnant wage growth and higher living costs could suppress consumer spending, the main engine of the UK economy.

Conclusion

The Q1 GDP data offers a snapshot of the UK economy before the full force of the Iran conflict hit. While the headline growth is welcome, it masks a fragile underlying picture. The next two quarters will test the resilience of the UK economy, with the path of the conflict and its effect on energy markets being the key variable. Policymakers are watching closely, but their options are limited.

FAQs

Q1: How reliable is the Q1 GDP data given the Iran conflict?
The data is accurate for the January to March period, but it does not capture the economic disruption that began in late March and accelerated in April. It should be viewed as a backward-looking indicator.

Q2: Could the UK economy still avoid a recession?
It is possible, but the risk has increased significantly. A recession is not the base case, but most forecasters now see a 35-40% probability of two consecutive quarters of contraction, depending on oil prices and supply chain stability.

Q3: What sectors are most exposed to the Iran conflict?
Manufacturing, aviation, logistics, retail, and hospitality are most exposed. Energy-intensive industries and those reliant on imported raw materials face the highest risk of margin compression and output disruption.