“But, unless the conflict in the Middle East is resolved, neither does it seem likely to be the last increase.”

The Bank projected inflation would pick up to nearly 5% by the second quarter of 2027, higher than its previous forecast, with greater spillover into wages and other prices.

Under an adverse scenario, in which prices stay higher for longer and the conflict in the Middle East continues to flare, inflation would hit 6.2% in the third quarter of 2027.

Thursday's decision, which comes a week after Chancellor John Healey delivered his first budget under the specter of Brits paying the highest energy prices in three years, will further squeeze struggling U.K. households and businesses already hit with higher energy bills and mortgage rates.

The tougher financing backdrop could hurt the Burnham government’s promises to tackle the cost of living. Yet rampant inflation would also undercut that pledge.

Still, the Bank’s top brass also pushed back on market expectations that rates could by hiked to 4.75% or 5% in 2027 — which could help bring down decades-high government borrowing costs.