UK Inflation Holds at 3% — Iran War Halts Rate Cut Bets, Spikes Mortgages

The UK's annual inflation rate held steady at 3% in February, a figure that has been rendered almost instantly obsolete by the subsequent outbreak of the US-Israel war with Iran. The data, which showed a temporary easing in food and fuel price pressures, represents a snapshot of an economic environment that no longer exists. The primary driver of UK interest rate expectations has shifted from domestic data to global geopolitics.

A Deceptive Calm

February's inflation data was in line with expectations, with all three sources—the BBC and two reports from The Guardian—noting the 3% figure. This stability was driven by falling petrol prices and an easing in food inflation during the month. However, this moderation was already seen as tenuous. The Guardian cited the Food and Drink Federation, which described the period as the “calm before the storm,” a sentiment that has proven prescient.

The data captures a moment before the war began to exert pressure on global oil markets. That pressure is now the dominant variable for the UK's inflation outlook. The disinflationary trend observed in early 2026 has been abruptly halted by an external shock, making the February statistics a historical data point rather than a forward-looking indicator.

Markets Price a New Reality

The most significant impact has been on financial markets, which have rapidly repriced the path of UK monetary policy. Before the conflict, consensus was building around a series of interest rate cuts from the Bank of England in the second half of the year. That consensus has evaporated. As The Guardian reports, markets are now pricing in several interest rate hikes instead.

This sharp reversal has a clear transmission mechanism to UK households. As expectations for the Bank of England's base rate shifted, lenders have withdrawn cheaper mortgage products. According to The Guardian, the average two-year fixed mortgage rate has surged from 4.83% at the start of March to 5.56% today. This marks the highest level for this benchmark since September of last year, directly increasing borrowing costs for homeowners and prospective buyers.

This demonstrates how quickly a geopolitical event can ripple through financial markets to affect real-world costs. The war's impact on energy prices created a new inflation risk, forcing markets to anticipate a more hawkish, rather than dovish, stance from the central bank. The consequence is tighter financial conditions for consumers, even before the new wave of energy inflation fully appears in the consumer price index.