Bank of England expected to lift interest rates to 4% as inflation climbs

The Bank of England is widely anticipated to lift its key interest rate on Thursday, marking the first upward adjustment to borrowing costs in over three years.

Financial analysts broadly predict that members of the Monetary Policy Committee will vote to increase the central bank's base rate from 3.75% to 4%. The benchmark had previously descended from a peak of 5.25% reached in 2023-24, remaining frozen across the committee's prior six sessions.

The anticipated shift is primarily prompted by accelerating inflation figures, which have climbed due to rising expenses for petrol and diesel. Fresh data shows the Consumer Prices Index reached 3.5% in the twelve months to September 2026, up from 3.1% in August and sitting significantly clear of the central bank's official 2% target. External pressures, including the international conflict involving Iran, have driven up global fuel and energy expenses, leaving households facing further prospective price hikes on domestic utility bills early next year.

An upward adjustment would create immediate consequences for hundreds of thousands of property owners. Calculations from the banking industry body UK Finance indicate that roughly 510,000 borrowers on tracker mortgages would face an estimated £31 increase in their monthly repayments following a quarter-point rise. For around 470,000 customers on standard variable deals, an equivalent increase would mean paying roughly £14 more each month, subject to their individual lender's actions.

Homeowners coming to the end of fixed-rate arrangements also face substantially higher borrowing expenses compared to historical lows. While fixed agreements do not fluctuate during their term, lenders have already factored expected base rate moves into their current products. Financial data platform Moneyfacts recorded average fixed deals hovering close to 6% in early November, with two-year fixes averaging 5.96% and five-year terms averaging 5.99%.

According to mortgage brokerage L&C, borrowers seeking to replace a five-year fixed deal originally agreed in 2021—when major lenders offered rates around 1.3%—could see their annual payments surge by nearly £5,000 on a typical £200,000 home loan spread across 25 years.

While the prospective decision will raise financing costs across commercial and personal loans, it could deliver better returns for cash savers if banks choose to lift deposit interest rates. Beyond the immediate decision, market participants will be scrutinising the central bank's statements for clues about future policy steps as officials attempt to cool persistent inflation without stalling an already subdued domestic economy.