“Trumpflation”—the inflationary pressure resulting from the U.S. administration’s military strategy in Iran—has landed on British doorsteps in the form of higher mortgage bills. New research shows that the average cost of a home loan has risen by approximately £800 a year over the last 14 days. The sudden reversal in rate trends has caught many buyers and homeowners off guard, ending a brief period of market optimism.
At the heart of the issue is the surge in global oil and gas prices, which has upended the Bank of England’s plans to lower interest rates. Swap rates, which dictate the pricing of fixed-rate mortgages, have climbed as investors anticipate a new era of persistent inflation. This has forced high-street lenders to pull products and hike rates to maintain their margins in an increasingly expensive funding environment.
The impact on individual households is substantial. On a £250,000 loan, a two-year fixed-rate mortgage now costs £788 more annually than it did at the start of March. Even five-year deals, usually seen as a safer haven, have seen annual costs rise by £651. With 1.8 million people needing to remortgage in 2026, the cumulative impact on the UK economy could be profound.
The number of competitive deals has cratered. Last week, borrowers could choose from 490 products with interest rates below 4%; today, that number has dwindled to just nine. Lenders are prioritizing stability over volume, leading to a “repricing frenzy” that resembles the market panic seen during the 2022 mini-budget crisis.
Financial experts now expect the Bank of England to remain hawkish at its policy meeting this week. While a rate cut was previously seen as a “done deal,” the inflation risks posed by the Middle East war have taken that option off the table. Borrowers are being advised to act quickly if they find a deal they can afford, as the “Trumpflation” wave shows no signs of receding.