Major lenders left mortgage rates unchanged this week as close to one million five-year fixed mortgages are expected to come up for renewal in 2026, exposing many homeowners who had locked in ultra low borrowing costs to the risk of sharply higher repayments.
The average rate for a two-year fixed mortgage came in at 4.49% this week, down from the previous 4.48% according to data from Uswitch.
The average five-year fixed deal came in at 4.98%, down from 4.99%. Those are the average rates across all lenders for a 75% loan-to-value (LTV) mortgage, meaning buyers need a down payment of at least 25% of the purchase price.
The Bank of England cut interest rates to 3.75% from 4% last month, taking borrowing costs to their lowest level in almost three years.
Nearly 1 million households took out five year fixed rate mortgages in 2021, leaving many borrowers facing higher repayments as those deals begin to expire, according to analysis by a comparison website.
A total of 971,105 five year fixed rate regulated mortgage products were opened that year, based on data obtained from the Financial Conduct Authority following a freedom of information request on behalf of Compare the Market. The figure does not account for mortgages that may have been repaid early before 2026.
Borrowers who fixed in 2021 benefited from a period when sub 2% five year rates were widely available, reflecting the ultra low interest rate environment at the time. Mortgage rates rose sharply in subsequent years but have eased more recently, helped by the Bank of England cutting the base rate by 0.25 percentage points to 3.75% in December.
Data from L&C Mortgages show that the average of the lowest remortgage five year fixed rates across the 10 largest mortgage lenders stood at 3.89% in January 2026.
Compare the Market estimates that higher rates could push up some households’ annual mortgage payments by as much as £2,124. The calculation is based on average house prices in 2021 and assumes a borrower who put down a 25% deposit.
Borrowers who allow their mortgage to roll onto a standard variable rate when a fixed deal ends could face even steeper increases.
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David Hollingworth, associate director at L&C Mortgages, said: “Homeowners that locked in a super low rate five years ago have been sheltered from the ups and downs in interest rates in recent years.
“Although a hike in payments is inevitable once the fix ends, the good news is that mortgage rates have improved substantially recently and are much lower than at the peak.