Financial markets are sending alarm signals through the UK mortgage market, with five-year fixed rates climbing to their highest levels since early 2025 even before the Bank of England has taken any action, as investors price in the prospect of rate hikes driven by the Iran war’s energy price impact. The Bank’s unanimous decision to hold at 3.75% on Thursday was accompanied by warnings that inflation could rise above 3% and require rate increases, but mortgage markets have already moved in anticipation. For UK homeowners and buyers, the changing rate environment represents a significant and unwelcome development.
The market alarm stems from the rapid repricing of UK monetary policy expectations following the outbreak of the US-Israel conflict against Iran. Before the war, fixed mortgage rates had been easing as markets anticipated Bank of England rate cuts. The conflict has reversed those expectations by introducing a powerful inflationary force through rising global energy prices. The Bank now projects inflation rising to approximately 3.5% in March and remaining elevated throughout 2026.
Governor Andrew Bailey acknowledged the mortgage market impact but said the Bank’s response for now was to hold and assess the evolving situation. He warned that petrol prices rising at UK forecourts were an early sign of the energy shock and said household energy bills could follow if supply disruptions persist. His message combined acknowledgement of the market’s concerns with a deliberate restraint about committing to specific future actions.
UK gilt yields rose and the FTSE 100 fell after the Bank’s announcement, consistent with the market direction visible in the mortgage rate moves. Traders moved to price in a June rate hike with high probability and a second increase before December. Analysts noted that the mortgage market was effectively already pricing in tighter conditions even before the Bank had confirmed any intention to act.
For individuals approaching the end of fixed mortgage deals, the changed environment creates a difficult decision about when and how to remortgage. Those who locked in fixed rates before the war will be protected for the duration of their deal, but those coming off fixed terms face a significantly more expensive market. The government and the Bank both face questions about what, if anything, can be done to mitigate the impact on households caught in this transition.