More than 40% of new UK mortgage lending now carries a term that extends past state pension age, according to data cited by the Financial Conduct Authority and Bank of England. The figure underlines how far extended loan terms, commonly referred to as “marathon mortgages”, have shifted from an edge case to a structural feature of the UK residential market.
Originations exceeding 35 years now account for 11% of new lending, a nearly fourfold increase from pre-2022 levels. The driver is straightforward: spreading a £300,000 balance over 40 years rather than 25 can reduce monthly repayments by roughly 15% to 25%, providing short-term affordability in a market shaped by elevated interest rates and stretched loan-to-income ratios. The trade-off is a slower drawdown of principal and, for a growing cohort of borrowers, a loan that runs well into their 60s and 70s.
The retirement transition problem
The structural issue crystallises at renewal. When a fixed-rate deal expires and the remaining term extends past state pension age, lenders shift their income assessment framework. Payslips and business accounts give way to verified post-retirement income: state pension projections, private pension drawdown schedules, annuity statements and investment returns. Lenders must satisfy themselves that post-retirement cashflows comfortably service the outstanding balance.
Age caps compound the challenge. Most standard residential lenders require loans to be cleared by 70, 75 or 80. A borrower remortgaging in their late 50s may find the maximum permissible term compressed to meet that ceiling, raising monthly repayments at precisely the moment income is transitioning from salary to pension.
John Fraser-Tucker, head of mortgages at Mojo Mortgages, pointed to the standard variable rate risk as a specific pressure point. “For borrowers whose loan terms run into their 60s or 70s, understanding how mortgage renewals work as retirement approaches is crucial for ensuring smooth transitions between fixed terms,” he said. Allowing a fixed deal to lapse on to an SVR, which typically carries a meaningfully higher rate, can create payment volatility that fixed retirement income is poorly positioned to absorb.
Practical routes for later-life borrowers
Several mechanisms exist for borrowers managing this transition. Most fixed-rate products allow penalty-free overpayments of up to 10% annually; even modest overpayments during higher-earning years reduce principal and can shorten a 40-year term materially. Where a full affordability reassessment with a new lender is impractical, an existing lender product transfer can offer a route to a new fixed rate without triggering a fresh income check or credit assessment.
For borrowers who fall outside standard residential criteria because of age caps, Retirement Interest-Only (RIO) mortgages offer a regulated alternative. Introduced by the FCA in 2018 and governed under the Mortgage Credit Directive framework, RIO products require only monthly interest payments, with the capital repaid on property sale or on the borrower entering long-term care. The product was designed specifically to prevent older borrowers from being stranded on SVRs or excluded from the remortgage market altogether.
Regulatory and market context
The marathon mortgage trend sits at the intersection of two policy concerns that have occupied the FCA in recent years: mortgage affordability stress-testing and the financial resilience of older consumers. The regulator’s Consumer Duty, which took full effect in 2023, requires lenders and brokers to demonstrate that products and advice remain suitable across the foreseeable life of a contract, a standard that arguably has particular bite when a 40-year term is written for a borrower in their late 30s.
The broader lending-into-retirement market remains relatively fragmented. Specialist later-life lenders and equity release providers operate alongside mainstream banks that are selectively extending their later-life product ranges. As the volume of marathon-mortgage borrowers approaching retirement grows over the next decade, the competitive and regulatory pressure on lenders to develop credible transition pathways is likely to intensify. Brokers with later-life accreditation and IFA partnerships are positioned to capture the advisory opportunity, but the gap between demand and specialist advice capacity remains a structural constraint.
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