Mortgage lenders will have greater freedom to offer loans above 4.5 times a borrower’s income from 28 October. But with higher-multiple lending already approaching the regulators’ market-wide limit, the change may be more about which lenders can offer bigger mortgages than how much additional debt the market can take on.
Plenty of would-be buyers have heard a version of the same answer from a mortgage broker. The monthly payment looks manageable, the credit history is clean and the deposit is in place. But the lender willing to offer 4.25 times their income will not stretch to five, or reserves its higher multiples for applicants earning considerably more. The result is a mortgage offer that falls just short of the home they want.
For some buyers, that restriction has been partly regulatory. Since 2014, the Bank of England’s Financial Policy Committee has sought to limit the proportion of new residential mortgage lending made at loan-to-income ratios of 4.5 or above. Until recently, individual lenders were generally restricted to making no more than 15% of their relevant new mortgages at those higher multiples.
On 14 October 2026, the Prudential Regulation Authority (PRA) and Financial Conduct Authority (FCA) published their final policy on high loan-to-income lending, removing that firm-by-firm restriction from 28 October. Individual lenders will have greater freedom to decide how much higher-multiple lending suits their customers and business models, while the regulators continue to aim for the overall market to remain consistent with the existing 15% limit.
The distinction is more important than it sounds. The government has not announced a new entitlement to borrow five or six times a salary, nor have regulators abandoned their concern about households taking on excessive debt. Instead, they are changing how a limited amount of higher-multiple mortgage lending can be distributed between lenders.
And the latest figures suggest that the room available across the market may already be relatively tight.
More flexibility for lenders, but how much room is left?
The PRA’s newly published high loan-to-income data shows that qualifying mortgages at 4.5 times income or above increased from 9.7% of lending within the policy’s scope in the third quarter of 2025 to 14.1% in the second quarter of 2026.
That is close to the 15% level regulators intend to maintain. It is also important not to confuse the figure with the proportion of all UK mortgages being issued at high income multiples. The calculation covers a defined group of regulated mortgages, including lending only from firms above the scheme’s minimum-size threshold, and excludes several categories of mortgage activity. In the second quarter of 2026, mortgages within the policy’s scope represented approximately 28% of all regulated mortgage sales recorded in the PRA’s data.
The figures are revealing for two reasons. They show that higher-multiple lending was already growing before the permanent rule change, helped by interim flexibility introduced after the Financial Policy Committee recommended the new approach in July 2025. They also show why the reform should not be mistaken for an unrestricted expansion of mortgage credit. The market-wide safeguard remains, even though the way lenders share the available room is changing.
Under the previous arrangements, a large bank with a broad range of mortgage customers could remain comfortably within its individual 15% allowance while a smaller lender specialising in first-time buyers might approach the same limit much sooner. Both were subject to essentially the same percentage restriction, despite serving different customers.
The new structure allows lenders to make their own decisions about the concentration of higher-multiple lending they are prepared to undertake. A specialist lender may choose to exceed 15% of its relevant new business, provided its approach is consistent with the regulatory requirements and the overall market remains within a level judged appropriate by the regulators.
That could encourage competition between lenders and offer some buyers access to mortgage products they previously struggled to find. First-time buyers have particular reason to pay attention: the PRA and FCA report that they accounted for 54% of high loan-to-income lending in the second quarter of 2025.
The regulators expect greater flexibility to support different lending strategies and potentially improve access to homeownership. But those are anticipated benefits, not outcomes that have already been established. Some firms may increase their willingness to lend at higher multiples, while others may decide that their existing limits reflect the level of risk they are comfortable accepting.
Nor does reaching 15% across the market automatically mean lenders must stop approving higher-multiple loans. The regulators will monitor the aggregate share and exercise supervisory judgement. If lending becomes inconsistent with the intended limit, they may expect individual firms with higher concentrations to reduce their lending gradually, rather than forcing an abrupt withdrawal of products.
The final rules give lenders time to manage such changes by assessing individual firms’ high-LTI lending over a rolling four-quarter period. The PRA will continue publishing the market-wide figures quarterly, making it possible to see whether the new flexibility is being used.
For borrowers, though, the regulatory allowance is only part of the decision. The lender must still be satisfied that the mortgage is affordable.
The difference between being able to borrow more and being able to afford it
Two households may each earn £50,000 a year and yet receive substantially different mortgage offers. One might have stable employment, little outstanding debt and modest monthly commitments. The other could have childcare expenses, car finance and significant regular expenditure. Even if both approach the same lender, the amount each can borrow may differ because mortgage affordability is assessed on more than gross income.
The 4.5-times-income threshold has never been a legal maximum for an individual mortgage. Lenders have been able to advance more than that within the applicable regulatory arrangements, and the latest change does not remove their responsibility to assess income, expenditure and financial resilience.
For a household whose finances genuinely support a larger mortgage, the reform may mean a wider choice of lenders. For somebody whose monthly commitments already stretch their budget, the regulatory change may make little difference. A lender cannot treat additional flexibility over income multiples as a substitute for responsible lending.
The numbers also show why borrowers should distinguish between being offered more money and being better off.
On a combined gross household income of £50,000, borrowing at 4.5 times income would produce a mortgage of £225,000. At five times income, the loan rises to £250,000. That additional £25,000 may bring a property within reach, but it also creates a larger financial commitment.
Take two hypothetical 25-year repayment mortgages, both charged interest at 6% throughout the term. The smaller £225,000 loan would require repayments of approximately £1,450 a month, while borrowing £250,000 would increase the payment to about £1,611. The extra £25,000 therefore adds roughly £161 a month, with total interest over the full 25 years increasing by around £23,300.
The 6% rate is an assumption for comparison, although Moneyfacts reported on 5 October that the average advertised five-year fixed mortgage rate had reached approximately that level. The figures are not lender offers, and the full-term interest comparison assumes the rate never changes, which is not how most borrowers’ mortgage costs unfold in practice.
The attraction of the larger mortgage becomes obvious when the deposit is considered. On a £275,000 purchase, borrowing £225,000 leaves a buyer needing £50,000 towards the price. A £250,000 loan would reduce that requirement to £25,000. For somebody who has spent years trying to save enough, the difference could be decisive.
But these two mortgages would not necessarily be available at the same interest rate. The larger loan represents a much higher loan-to-value ratio — approximately 91% rather than 82% — and lenders often price mortgages differently according to the proportion of the purchase being financed. A buyer needing the higher loan might therefore face a higher interest rate as well as a larger balance, making the actual monthly difference greater than the illustration suggests.
The smaller deposit also leaves less equity to absorb a fall in property values. If the £275,000 home fell in value by 10% shortly after purchase, its value would be £247,500. Before allowing for any repayments, that would be below the original £250,000 mortgage balance. Such a fall is hypothetical, but it illustrates how relatively little protection a high loan-to-value purchase can provide against negative equity.
Interest rates create another uncertainty. At 8%, a new £250,000 repayment mortgage over 25 years would cost approximately £1,930 a month, compared with £1,611 at 6%. That is a difference of around £319 each month. It does not mean a borrower with a fixed-rate mortgage would immediately face higher payments if market rates rose, or that their repayment would necessarily be £1,930 when they next refinanced. By then, their outstanding balance, remaining term and available mortgage deals could all be different.
The example shows the scale of the risk rather than predicting a future payment. Borrowing more may help somebody purchase sooner, but the advantage needs weighing against higher costs, less initial equity and the possibility that future borrowing conditions are less favourable.
The benefits could reach beyond first-time buyers
For mortgage brokers, greater flexibility among specialist lenders may make it easier to find suitable products for applicants who have strong finances but do not meet the standard income-multiple limits of larger banks. Some lenders may use the opportunity to compete more actively for professional borrowers or households whose expected future earnings are strong, although any additional lending will still depend on each firm’s eligibility and affordability criteria.
That could matter to the wider property market. First-time buyers are an important source of demand for existing homes and new-build properties. When somebody can purchase their first property, the seller may be able to proceed with their own move, allowing transactions further up the chain to continue. Housebuilders may also benefit if more financially suitable purchasers can secure mortgages for new homes.
Yet the effect on homeownership will depend on how lenders respond and whether additional borrowing helps buyers overcome a genuine financing obstacle rather than merely increasing the amount they are willing to bid.
In places where housing supply is tight, greater borrowing capacity could encourage competition for the same limited number of homes. If enough buyers are able to offer more, some of the benefit may be absorbed by higher prices. That is a plausible risk rather than a demonstrated consequence of the October reform, particularly as the aggregate limit remains in place.
There is a further distinction between improving mortgage availability and making housing affordable. A buyer obtaining a larger loan may be able to proceed with a purchase that was previously beyond reach, but their monthly housing costs and exposure to future financial shocks could also increase. More debt does not necessarily mean more financial security, even where a lender considers the initial payments manageable.
The financial-stability question is equally important for lenders. One reason the original restrictions were introduced was the concern that highly indebted households could respond to financial difficulties by sharply reducing spending, making an economic downturn worse. The new framework preserves the market-wide safeguard but allows some institutions to hold a greater concentration of higher-multiple mortgages than others.
That is not automatically unsafe. Specialist lenders may have experience assessing particular groups of borrowers and managing their risks. Nevertheless, regulators will need to ensure that firms choosing to increase high-LTI lending understand the consequences if borrowers’ incomes weaken, property prices fall or refinancing becomes more expensive.
This is where the commercial opportunity and the regulatory concern meet. A lender may gain business by offering higher multiples to borrowers its competitors turn away, but that lending must still be sustainable during less favourable conditions. The PRA and FCA expect firms to maintain appropriate governance and risk controls, with scope for supervisory intervention if higher-multiple lending across the relevant market becomes inconsistent with the aggregate limit.
For estate agents and sellers, the announcement should not be interpreted as a signal that buyers will suddenly have substantially more money available. Some may benefit from wider lender choice, but others will remain constrained by affordability assessments, deposit requirements and the rates offered on individual products.
The more convincing potential benefit is improved competition for creditworthy borrowers who were previously disadvantaged by an individual lender’s quota, rather than a general lifting of the amount households can safely borrow.
The real test is whether borrowers gain useful choice
The PRA’s quarterly statistics will help establish how lenders respond after 28 October. With the proportion of high-multiple lending already reaching 14.1% of mortgages within scope by the second quarter of 2026, there may be limited room for substantial additional expansion without the regulators considering whether the aggregate remains consistent with the 15% limit.
Changes to individual lenders’ criteria may therefore prove more revealing than the national total alone. If specialist providers begin accepting suitable borrowers at higher income multiples while other firms remain more conservative, the reform may be working much as its designers intended even without a dramatic increase in the overall high-LTI share.
The next figures will not, on their own, establish whether homeownership has become more accessible. That will depend on the households obtaining mortgages, the terms they receive and whether the additional flexibility enables sustainable purchases rather than merely larger debts.
For prospective buyers, the important development is that a lender previously constrained by the proportion of high-multiple mortgages it could make may now have greater freedom to consider an application. It may be worth reviewing available options rather than assuming that a rejection or lower offer from one provider represents the limit of the market.
But affordability remains personal. A mortgage that passes a lender’s assessment can still leave a household with uncomfortable financial commitments, particularly if earnings fall, essential expenses rise or refinancing later becomes more expensive.
The October change offers the possibility of better access to mortgage credit, not a guarantee of cheaper homeownership. Its success should be judged by whether suitable borrowers gain meaningful choice while lenders retain discipline over the risks.
For a household finally able to purchase a home it can comfortably afford, that could be a valuable improvement. For one stretching to the edge of its finances simply because more borrowing has become available, the same change may prove considerably less welcome.
This article provides general news and financial information concerning UK mortgage regulation as at 16 October 2026 and does not constitute personal mortgage or financial advice. The borrowing examples are hypothetical, use illustrative interest rates and do not represent mortgage offers or predictions of future rates or property values. Mortgage eligibility, pricing and affordability assessments vary between lenders. Consider advice from an FCA-regulated mortgage adviser before making significant borrowing decisions. Your home may be repossessed if you do not keep up repayments on your mortgage.
