Mortgage term extensions have become increasingly common among home movers in 2025. Higher interest rates, stricter affordability checks, and property price inflation have all pushed borrowers to explore ways to reduce monthly payments and keep their plans on track. Extending the mortgage term—whether to 30, 35 or even 40 years—can create immediate breathing room, but it is not always the right long-term strategy.
At Willow Private Finance, we see a significant rise in movers asking whether term extensions are sensible, necessary, or potentially risky. Some clients use the tool strategically to manage cash flow in the early years of a move. Others use it to make affordability work in the short term while planning to restructure later. But we also see cases where extending the term creates unintended consequences, including higher lifetime interest costs or limited refinancing options.
Understanding how a term extension works, what lenders consider, and how it impacts your broader financial position is essential before making a decision. For those evaluating affordability challenges more generally, our article Boost Your Borrowing Power in 2025 provides practical guidance. Movers comparing multiple finance routes may also find value in How Lenders Calculate Affordability in 2025 and Is It Time to Remortgage? Signs to Watch in 2025.
This guide explores the full picture—pros, cons, risks, and strategic considerations—for home movers in 2025.
Several market dynamics have driven a rise in term extensions. While rates are more stable than in 2023–2024, they remain significantly higher than previous years, putting pressure on affordability. Lenders also maintain conservative affordability modelling, meaning borrowers often require lower monthly payments to qualify for their desired property or loan amount.
Home movers frequently combine a larger mortgage (due to upsizing or higher property prices) with a higher interest rate and stricter stress testing. The result is that monthly mortgage payments can increase sharply, even if the new home is only marginally more valuable than the previous one. Extending the term becomes a mechanism to neutralise this increase.
Demographic shifts also play a role. Younger borrowers who purchased in their late twenties or early thirties still have a long working lifespan, making 30–40 year terms viable. Meanwhile, older movers face tighter age-based restrictions, which can influence term flexibility and affordability outcomes.
A mortgage term represents the length of time over which the loan is scheduled to be repaid. Extending the term reduces the required monthly payment because repayment is spread over more years. Lenders typically offer terms up to 35 years, with some extending to 40 years. However, the maximum term available will depend on the borrower’s age, retirement plans, income profile, and overall financial circumstances.
Importantly, an extended term affects only the repayment schedule—not necessarily the rate, lender, or product type. Some clients extend the term during a remortgage or home move; others do so within an existing lender as part of a product transfer or further advance.
Term extensions may be temporary. Many borrowers extend the term to improve affordability during a move and subsequently reduce it once income increases, debts reduce, or interest rates improve. This strategy must be aligned with lender policy and overall financial planning.
For many movers, the primary benefit is improved monthly affordability. Lower payments reduce financial pressure during a transition, especially when combined with the additional costs of moving, furnishing, childcare, schooling, travel or other lifestyle expenses.
Term extensions also expand lender choice. Some lenders will only approve a case if payments fall below a specific threshold in their affordability model. Reducing monthly payments through a longer term can unlock access to mainstream lenders and highly competitive products that might otherwise be unavailable.
Certain borrowers—particularly those with variable income, bonus-driven professions, or complex earnings—may benefit from stabilising their repayment profile while managing fluctuating remuneration. Term extension becomes a strategic tool that preserves cash flow while allowing borrowers to move at the right time.
Finally, borrowers pursuing large or complex transactions—such as using company profits to buy a home or arranging finance via private banking routes—can use term flexibility to optimise affordability while structuring income and assets more effectively.
While term extensions offer short-term advantages, the long-term cost implications can be substantial. Extending a mortgage from 25 to 35 years can result in paying significantly more interest over the life of the loan, even if the rate itself is unchanged. Borrowers must balance immediate monthly savings with lifetime financial impact.
A longer term may also limit future flexibility. Some lenders impose restrictions on how quickly a term can be reduced later. Others require fresh affordability assessments, meaning that reducing the term in the future is not guaranteed—especially if income decreases, expenses rise, or personal circumstances change.
Borrowers close to retirement must consider age-based restrictions. Lenders expect the full mortgage to be repaid by retirement age unless substantial assets justify an extended term. For clients with defined benefit pensions, investment portfolios, or high-value assets, private bank lenders may show greater flexibility, but careful planning is required.
Finally, extending the term should not be used to mask deeper affordability issues, such as excessive unsecured debt, irregular income sustainability, or cash-flow strain. In these cases, addressing the underlying financial structure is essential.
Lenders apply detailed assessments when considering term extensions. They review the borrower’s income, expenditure, age, existing debt, repayment strategy, and long-term stability. Many lenders cap the maximum term based on the age the borrower will be at expiry, typically requiring repayment before age 70. Some private banks, however, offer more flexible structures based on wealth, liquidity, and asset coverage.
Lenders also assess the applicant’s intention and ability to reduce the term in the future. Strong credit conduct, disciplined financial behaviour, and clear financial planning support this. Borrowers with complex profiles—such as self-employed individuals, directors, or clients with offshore income—may find private banks more accommodating because they consider broader wealth and cash-flow patterns, not just monthly salary.
If consolidating debts as part of the home move, lenders assess how the extension impacts long-term sustainability. Borrowers often benefit from lender-agnostic guidance to prevent committing to structures that constrain future borrowing or refinancing.
Extending your mortgage term may be a beneficial approach in several situations. Home movers facing temporary affordability constraints—such as childcare costs, school fees, or business investment—often use term extensions to maintain financial stability during high-expense periods. Borrowers with strong income growth prospects may also extend the term temporarily and reduce it later.
Clients planning to renovate a newly purchased property may wish to preserve cash flow for refurbishment. Those navigating high-value or private banking mortgages may also extend the term to strengthen affordability when using bonus income, shares, carried interest or trust distributions, before restructuring once liquidity events occur.
Investors using Let-to-Buy strategies may also leverage term flexibility, especially when running two mortgages simultaneously while transitioning to a new home.
A term extension is not appropriate for every borrower. Clients close to retirement may find a longer term restricts lender choice and creates affordability challenges at remortgage. Borrowers already heavily reliant on credit or struggling with expenditure may find the extension only masks deeper issues.
High-asset, low-income borrowers may also achieve better outcomes through private bank routes or asset-based lending models, rather than extending terms unnecessarily. Those who value long-term interest savings may prefer to tighten affordability now, rather than pay higher overall interest over decades.
Finally, borrowers whose income is likely to fall—such as those taking career breaks, reducing hours, or facing economic uncertainty—should be cautious about long-term commitments that reduce flexibility.
A common mistake among movers is treating term extensions as permanent decisions. In reality, the most effective strategies often involve flexibility: extend the term to secure affordability now, then shorten it later as circumstances improve. This requires careful planning, lender selection, and ongoing monitoring of financial conditions.
Borrowers must also consider refinancing timelines. Fixing into a long-term rate with an excessively long repayment schedule may reduce opportunities to restructure in the future. Those who review their borrowing structure regularly are often the ones who maintain the lowest lifetime cost.
In 2025, affordability remains a central challenge for home movers. Term extensions will continue to play a role in enabling purchases, improving cash flow, and navigating lender affordability frameworks. However, borrowers who approach term decisions strategically—balanced between monthly affordability and long-term cost—will achieve the strongest outcomes.
Private banks and specialist lenders are expected to offer increasingly diversified repayment structures, giving borrowers more options beyond traditional terms. However, these routes require expert structuring and presentation.
Term extensions can be an excellent tool—but only when used in the right circumstances.
Willow Private Finance works with home movers across the UK and internationally to structure mortgages that balance affordability, flexibility, and long-term financial stability. As a whole-of-market broker with deep expertise in private banking and specialist lending, we help clients understand whether extending a term is beneficial or detrimental based on their broader financial strategy.
We work with complex income, high-value transactions, business owners, expats, and clients requiring bespoke lending structures. Our ability to interpret lender policy and position a case correctly ensures movers make informed decisions that support both immediate goals and long-term objectives.
Q1: Does extending the mortgage term reduce my monthly payments?
Yes. Spreading repayments over a longer period reduces your monthly outgoings and may improve affordability, but it increases the total interest paid over the lifetime of the loan.
Q2: Can I shorten the term again in the future?
Often yes, but lenders may require new affordability checks when you attempt to reduce the term. Some borrowers extend temporarily and then restructure later.
Q3: Will extending my term affect which lenders I can use?
Yes. A lower monthly payment may increase lender choice, especially for borrowers facing tight affordability. Some lenders restrict term length based on age or retirement plans.
Q4: Is it better to extend the term or choose an interest-only mortgage?
It depends on your income structure, long-term plans, and asset position. Interest-only can reduce payments more significantly but requires a clear repayment vehicle.
Q5: Are private banks more flexible with mortgage terms?
Private banks often provide greater flexibility, especially for high-net-worth borrowers with strong asset bases, investment portfolios or trust structures.
Book a free strategy call with one of our mortgage specialists.
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About the Author
Wesley Ranger is the Director of Willow Private Finance and brings more than 20 years of experience arranging complex property finance for UK and international clients. He specialises in high-value residential lending, private bank mortgages, and solutions for borrowers with non-standard income. Wesley’s expertise ensures clients receive strategic, personalised guidance tailored to their financial goals and long-term wealth planning.
Important Notice
This article is for general information only and does not constitute personal financial advice. Mortgage term decisions depend on individual circumstances, affordability, income, and lender criteria. Lending products and eligibility rules may change at any time. Always seek personalised advice before making financial decisions. Willow Private Finance Ltd is authorised and regulated by the Financial Conduct Authority (FCA No. 588422). Registered in England and Wales.
