Two-thirds of the £12bn eventual rise in UK mortgage prices from greater rates of interest has but to be handed on to debtors, leaving them dealing with painful refinancing over the approaching months, a think-tank has warned.

The Financial institution of England this week lifted its most important rate of interest by 1 / 4 of a share level to 4.5 per cent, the twelfth consecutive rise since December 2021. The rise will result in greater payments for individuals on floating mortgage charges and heighten remortgage fears amongst these nearing the top of a fixed-rate deal.

In a report revealed on Saturday, the Decision Basis mentioned about half of the 7.5mn mortgaged households dealing with revised rates of interest between the fourth quarter of 2021 and the top of 2026 had but to see a change of their mortgage charge.

The think-tank estimated the £12bn improve in mortgage prices over the identical interval by taking market expectations of rate of interest modifications over the following 4 years, in addition to compensation rises since 2021, and calculating the impression on variable charge and fixed-rate mortgages.

It discovered £9bn of the rise can be borne by the richest 40 per cent of households, who usually tend to reside in costly houses and maintain mortgages. However it additionally warned that lower-income households and first-time consumers would really feel better stress on their residing requirements, since mortgage prices are a lot greater as a proportion of their revenue.

Simon Pittaway, senior economist on the Decision Basis, mentioned: “Individuals shifting on to new fixed-rate offers over the following yr can count on to see their annual mortgage prices rise by an eye-watering £2,300 — with younger households and low- and middle-income households with mortgages dealing with the most important residing requirements hits.”

The BoE has estimated that roughly 1.3mn households might want to refix between April and December 2023.

“For the typical mortgagor inside that group, month-to-month curiosity funds will improve by round £200 a month if their mortgage charge rises by 300 foundation factors — the rise implied by quoted mortgage charges,” the central financial institution mentioned in its newest financial coverage report.

Debtors who worth the knowledge of realizing their future month-to-month funds could choose a two-year repair or a less expensive five-year deal, brokers mentioned. However shoppers who imagine rates of interest will fall throughout the subsequent two years could spurn a repair in favour of a tracker mortgage, linked to the BoE base charge, that enables them to repair later ought to higher offers emerge.

Simon Gammon, managing associate at dealer Knight Frank Finance, mentioned that was “a extremely private choice” as a result of it got here “with the danger that your month-to-month funds will rise if the BoE opts to lift rates of interest additional”.

For the 8 per cent of debtors on tracker mortgages, Thursday’s rate of interest rise means a mean £24 improve in month-to-month funds, however a £417 month-to-month bounce when the rises from 2021 are included, in accordance with information from trade physique UK Finance, based mostly on common mortgage sizes.

In the meantime, the 9 per cent of debtors on a normal variable charge — the costliest provided by lenders — will see a mean £15 rise of their month-to-month funds, however a £267 month-to-month improve with earlier charge will increase included.

Mortgage brokers performed down the prospect of debtors being pressured on to SVRs, pointing to the rise in product switch mortgages, the place a lender affords a brand new deal because the buyer’s repair expires with out having to reassess affordability.

Ray Boulger, analyst at dealer John Charcol, mentioned that even when individuals’s circumstances had modified “they will nonetheless get a product switch in almost each case . . . So if individuals are on SVR, it’s usually by alternative or in all probability by inertia.”