There are roughly 750,000 interest-only mortgages still active in the UK. Over 56,000 of them are set to mature in 2026 alone.
If yours is one of them, the clock is ticking. And the reality is simple: when the term ends, your lender wants the full capital back. Not next year. Not gradually. All of it.
The good news? You have options. More than most people realise. But the worst thing you can do is ignore it.
This guide covers exactly what happens when your interest-only mortgage reaches the end of its term, what your lender will do, and every realistic option available to you in 2026.
Key Takeaways
- When an interest-only mortgage ends, the full original loan amount becomes due immediately
- Your lender will contact you 12 months, 6 months, and 3 months before your term ends
- Options include extending the term, switching to a repayment mortgage, remortgaging, equity release, a retirement interest-only (RIO) mortgage, or selling the property
- The FCA estimates that 46% of interest-only borrowers may face a repayment shortfall
- Repossession is a last resort, but lenders can and do pursue it if you fail to engage
- Acting early gives you the widest range of choices
How an Interest-Only Mortgage Works
With a standard repayment mortgage, your monthly payments cover both interest and a portion of the capital. By the end of the term, the debt is cleared.
An interest-only mortgage works differently. You only pay the interest each month. The capital (the amount you originally borrowed) stays exactly the same.
That means if you borrowed £200,000 twenty-five years ago, you still owe £200,000 at the end of the term. Every penny of it.
The monthly payments are significantly lower. That was the appeal. But it was always built on one assumption: that you would build up a separate pot of money to repay the capital when the time came.
Common repayment vehicles included:
- Endowment policies (investment-linked savings plans)
- ISA savings
- Pension lump sums
- Property sale proceeds
- Other investments (stocks, bonds, rental income)
For many borrowers, those repayment vehicles underperformed. Endowments in particular became notorious for falling short. And plenty of people never set up a repayment vehicle at all.
Did You Know?
The FCA found that while 82% of interest-only borrowers felt confident about repaying their capital, modelling suggests 46% may actually face a shortfall. There is a significant gap between confidence and reality.
What Happens When Your Term Ends
When your interest-only mortgage matures, the full outstanding balance becomes due. Your lender expects repayment of the entire capital in one go.
Here is the typical timeline:
12 Months Before Maturity
Your lender will write to you. This letter will remind you that your mortgage term is ending and ask how you plan to repay the outstanding capital. Some lenders will ask you to complete a questionnaire about your repayment strategy.
6 Months Before
A follow-up letter. By this point, your lender expects you to have a concrete plan. If you have not responded to earlier correspondence, they will chase you more firmly.
3 Months Before
Final warning. If you still have no repayment plan in place, your lender may begin discussing what happens if you cannot repay. This is where conversations about extensions, conversions, or property sales typically start in earnest.
Maturity Date
The mortgage term expires. If you cannot repay the capital, your lender may:
- Place you on a reversion rate (typically the lender’s standard variable rate, which is usually higher)
- Charge additional fees for the overdue balance
- Begin the process of recovering the debt
Important
Do not ignore your lender’s letters. Engaging early gives you far more options. Lenders are required by the FCA to treat customers fairly and explore all alternatives before pursuing repossession. But they can only help you if you communicate with them.
What If You Cannot Repay the Full Amount?
This is where most people start to panic. But you have more options than you might think.
Let’s go through each one.
1. Extend Your Mortgage Term
Many lenders will agree to extend your interest-only term by 5 to 10 years, sometimes longer. This buys you time to build up funds, sell investments, or wait for a pension to mature.
To qualify for an extension, you will typically need to:
- Demonstrate a credible repayment vehicle that will mature during the extension period
- Show you can afford the ongoing monthly payments
- Have sufficient equity in the property
Extensions are not automatic. Your lender will reassess your circumstances. But since FCA rules introduced in 2020 made it easier for lenders to switch borrowers within their group without a full affordability assessment, more lenders are willing to offer extensions where the borrower has been meeting payments consistently.
2. Switch to a Repayment Mortgage
You can ask your lender to convert your remaining balance to a capital repayment mortgage. Instead of paying interest only, you start paying both interest and capital.
The catch? Your monthly payments will jump significantly. If you have £150,000 outstanding and switch to a 10-year repayment term at 5%, your monthly payments would be around £1,590, compared to roughly £625 on interest-only.
Your lender will need to run an affordability assessment to ensure you can handle the higher payments.
3. Part-and-Part Arrangement
A middle ground. You pay interest only on a portion of the balance and repayment on the rest. This keeps monthly payments more manageable while still reducing the capital over time.
This can be a practical option if you cannot afford a full switch to repayment but want to start chipping away at the debt.
4. Remortgage with Another Lender
If your current lender will not offer acceptable terms, you may be able to remortgage with a different provider. Some specialist lenders cater specifically to borrowers with maturing interest-only mortgages.
Be aware that:
- Age limits apply. Most mainstream lenders have a maximum age at the end of the mortgage term, typically 70 to 75
- Affordability checks will be required
- Equity levels matter. Lenders typically want at least 25% to 40% equity
- Early repayment charges on your existing deal may apply
5. Retirement Interest-Only (RIO) Mortgage
If you are 55 or over, a RIO mortgage could be a strong option. Introduced in 2018, these are specifically designed for older borrowers.
How they work:
- You continue making monthly interest payments (so the debt does not grow)
- There is no fixed end date for the mortgage
- The capital is repaid when you sell the property, move into long-term care, or pass away
- You typically need at least 50% equity in your property
- Lenders must be satisfied you can afford the monthly interest payments now and throughout retirement
The advantage over equity release is significant: because you are making monthly interest payments, the debt stays flat. With a lifetime mortgage (equity release), interest compounds and the debt grows every year.
RIO mortgage rates tend to be lower than equity release rates, though higher than standard residential mortgage rates.
6. Equity Release (Lifetime Mortgage)
Available to homeowners aged 55 and over, equity release lets you borrow against the value of your home without making any monthly payments. The interest rolls up and compounds, and the loan is repaid when you die, move into care, or sell the property.
This can clear your existing mortgage and potentially release additional cash. But there are serious considerations:
- Interest compounds. A £100,000 loan at 6% APR becomes roughly £320,000 after 20 years
- It significantly reduces the inheritance you leave behind
- Rates are higher than standard mortgages, typically 5.5% to 7.5%
- All plans regulated by the Equity Release Council include a “no negative equity” guarantee, so you will never owe more than the property is worth
Equity release should be a carefully considered decision, not a panic move. Independent financial advice is essential, and in fact it is a requirement before any equity release plan can proceed.
7. Pay a Lump Sum
If you have savings, investments, pension lump sums (you can typically take 25% of your pension tax-free), or proceeds from selling other assets, you may be able to clear some or all of the outstanding capital.
Even a partial lump sum payment can make a difference. Reducing the outstanding balance may make it easier to remortgage, extend, or switch to a repayment deal on the remainder.
8. Sell the Property
For some homeowners, selling the property is the most straightforward solution. Clear the mortgage, keep any remaining equity, and either downsize, rent, or move in with family.
The route you choose for selling matters:
| Sale method | Typical timeline | Key considerations |
|---|---|---|
| Estate agent (open market) | 3 to 6 months | Best price, but agent fees (avg 1.5%) + solicitor costs + risk of sale falling through |
| Auction | 6 to 10 weeks | Exchange on the day, completion within 28 days. No guarantee of achieving reserve price |
| Cash house buyer | 2 to 4 weeks | Fastest and most certain. Typically 75-85% of market value. No fees, no chain |
If you have time, the open market will usually get you the best price. If your mortgage is about to mature and the clock is ticking, speed may matter more.
What Happens If You Do Nothing?
Ignoring the problem does not make it go away. Here is the reality:
If your mortgage matures and you have not repaid the capital or agreed an alternative arrangement with your lender, you are in mortgage arrears. The lender has a legal charge over your property and the right to recover the debt.
The Repossession Timeline
Repossession is a last resort, but lenders do pursue it. Government statistics show mortgage possession claims rose by 31% in early 2025, with the median time from initial claim to repossession standing at around 40 weeks.
The typical process:
- Arrears letters and contact attempts. Your lender will write to you multiple times, attempting to agree a repayment plan or alternative arrangement
- Pre-action protocol. Before going to court, lenders must follow a pre-action protocol. This includes exploring all reasonable alternatives with you
- Court application. If no agreement is reached, the lender applies to the county court for a possession order
- Court hearing. You can attend and present your case. The court considers whether you have a realistic plan to clear the debt. They may grant a suspended possession order (giving you more time if you stick to a repayment plan)
- Possession order and eviction. If the order is enforced, bailiffs can carry out the eviction. The property is then sold to recover the debt
The entire process typically takes 6 to 12 months from the first missed payment. If you engage with your lender, it can be delayed significantly. If you ignore correspondence entirely, it can move faster.
Important
Repossession should never be your only option. Even if your term has already expired, contact your lender immediately. The FCA requires lenders to treat customers fairly, and most lenders would rather agree an alternative than repossess. Shelter offers free advice on your rights and options.
Can You Extend an Interest-Only Mortgage Past Its End Date?
Yes, in many cases you can. But it depends on your lender and your circumstances.
Since the FCA’s 2020 policy changes, lenders have had greater flexibility to help borrowers with maturing interest-only mortgages. Key points:
- Lenders can extend terms or switch products without a full affordability assessment if the borrower is not increasing their borrowing
- You will still need to show a credible plan for eventually repaying the capital
- Extensions of 5 to 10 years are common; some lenders will go further
- Your lender may switch you to their standard variable rate during the extension, which could be higher than your previous deal
Contact your lender as early as possible. The further ahead of your maturity date you engage, the more flexibility they can offer.
How the Scale of the Problem Is Changing
The number of interest-only mortgages outstanding has halved since 2015. According to the FCA, there are currently around 750,000 pure interest-only mortgages and a further 245,000 part-interest-only mortgages in the UK.
The numbers are shrinking as borrowers switch to repayment deals, remortgage, or pay off their loans. But for the hundreds of thousands still on interest-only terms, the maturity dates are approaching fast.
Source: FCA Product Sales Data and Interest-Only Mortgage Analysis
The peak is still several years away. But the borrowers maturing now, in 2026 and 2027, are the ones who need to act immediately.
Your Options at a Glance
| Option | Best suited for | Key requirement | Watch out for |
|---|---|---|---|
| Term extension | Borrowers with a maturing repayment vehicle | Credible repayment plan | May be placed on higher SVR rate |
| Switch to repayment | Those who can afford higher monthly payments | Passes affordability assessment | Monthly payments could double or more |
| Part-and-part | Middle ground between interest-only and full repayment | Affordability for increased payments | Capital reduces slowly |
| Remortgage | Borrowers whose current lender is inflexible | Sufficient equity (25-40%+) and income | Age limits (typically 70-75 max) |
| RIO mortgage | Over-55s with pension or retirement income | 50%+ equity, affordable monthly interest | Must prove long-term affordability |
| Equity release | Over-55s who cannot make monthly payments | Sufficient property value | Compound interest grows debt substantially |
| Lump sum payment | Those with savings, pension, or assets to sell | Available funds | Tax implications on pension withdrawals |
| Sell the property | Homeowners who need to clear the debt entirely | Property has enough equity to cover the mortgage | Open market sales take 3-6 months on average |
What Happens to Your Credit Score?
If your mortgage matures and you have not agreed a new arrangement:
- Missed payments are recorded on your credit file and stay there for six years
- A default may be registered if the account falls significantly behind
- A county court judgment (CCJ) will appear if the lender pursues court action
- Repossession causes severe, long-term credit damage
Even if your lender agrees to an extension or conversion, the process is smoother and less likely to affect your credit if you start the conversation early.
Tax Considerations When Selling
If you sell your property to repay the mortgage, the tax position depends on whether it is your main home.
Main Residence
If the property is your primary residence and has been throughout ownership, you will not pay Capital Gains Tax. Private Residence Relief covers the full gain.
Buy-to-Let or Second Home
If the property is not your main home, you will pay CGT on any gain above your £3,000 annual allowance (2026-27). Current rates for residential property are:
- 18% for gains within the basic-rate income tax band
- 24% for gains above the basic-rate threshold
You must report and pay CGT within 60 days of completion when selling UK residential property. Speak to a qualified accountant to understand your specific liability.
When Selling Quickly Matters: A Real-World Example
We had a client whose chain broke. They were on an interest-only mortgage that was about to end and could not afford to remortgage. Repossession was a real possibility.
When we factored in legal costs, ongoing mortgage payments, the time it would take to resell on the open market, and estate agent fees, our offer matched what they had previously accepted on the open market. We completed in four weeks and stopped the repossession.
That is the maths that matters when time is against you. A higher headline price on the open market does not always translate to more money in your pocket once you account for months of mortgage payments, agent commissions, solicitor fees, and the risk of the sale collapsing.
From Our Experience
Around 60% of the properties we buy come from landlords who are exiting the market or homeowners whose interest-only mortgage is about to expire. Most people who come to us, about 90%, have already tried selling on the open market first.
A Practical Action Plan
If your interest-only mortgage is approaching its end date, here is what to do:
- Contact your lender immediately. Even if your term has already expired. Explain your situation and ask what options they can offer. Do this first, before anything else
- Check your repayment vehicle. If you have an endowment, ISA, pension, or other savings, find out exactly how much is available. Get current valuations
- Get independent financial advice. A qualified, FCA-regulated mortgage adviser can review your full situation and recommend the best path. MoneyHelper offers free, impartial guidance
- Get your property valued. Understanding your equity position is essential for every option, whether you are remortgaging, extending, releasing equity, or selling
- Explore all routes before deciding. Talk to your lender, an independent adviser, and consider whether selling (on the open market or for cash) might give you a cleaner outcome
- Act before the deadline. The earlier you start, the wider your options. Leaving it until the final month limits what lenders and advisers can realistically do for you
Need to Sell Your Property Quickly?
If your interest-only mortgage is about to expire and you need a fast, certain sale, we can help. Cash offer within 24 hours. No fees. No chain. Completion in as little as 2 to 4 weeks.
Frequently Asked Questions
Can you be repossessed on an interest-only mortgage?
Yes. If your mortgage term ends and you cannot repay the outstanding capital or agree an alternative arrangement with your lender, they have the legal right to pursue repossession. However, lenders must follow the FCA’s rules on treating customers fairly and explore all reasonable alternatives first. Repossession is a last resort, and the court process typically takes 6 to 12 months.
What happens if my endowment does not cover the mortgage?
If your endowment has matured but the payout is less than the outstanding mortgage balance, you have a shortfall. You will need to cover the difference through savings, other investments, remortgaging the remaining amount, or selling the property. Contact your lender to discuss how to handle the gap.
Can I get a new mortgage after 60 or 70?
It depends on the lender. Most mainstream lenders set a maximum age at the end of the new term, typically 70 to 75. However, some specialist lenders and building societies have higher or no age limits. Retirement interest-only mortgages are specifically designed for older borrowers and have no fixed end date. You will need to demonstrate affordable monthly payments.
Is equity release safe?
Equity release plans regulated by the Equity Release Council come with a “no negative equity guarantee,” meaning you will never owe more than your home is worth. However, compound interest means the debt can grow substantially over time, significantly reducing the inheritance you leave behind. Independent financial advice is a mandatory requirement before proceeding with equity release.
What is the difference between a RIO mortgage and equity release?
With a retirement interest-only (RIO) mortgage, you make monthly interest payments, so the debt stays flat. With equity release (a lifetime mortgage), you typically make no monthly payments, and interest compounds on top of the loan. RIO mortgages generally have lower interest rates and preserve more of your estate, but you must prove you can afford the monthly payments.
Will my lender automatically extend my mortgage?
No. Extensions are not automatic. You must apply to your lender and demonstrate a credible repayment plan for the extended period. Since 2020, FCA rules have made it easier for lenders to offer extensions without a full affordability assessment (provided you are not increasing borrowing), but approval is still at the lender’s discretion.
What if my property is in negative equity?
If your property is worth less than the outstanding mortgage, selling will not clear the debt. You will still owe the shortfall. In this situation, speak to your lender urgently. They may agree to accept a reduced settlement, extend the term, or convert to repayment. Shelter and Citizens Advice can provide free guidance.
Can I sell my house quickly to repay an interest-only mortgage?
Yes. If speed is essential, a cash buyer can complete a purchase in 2 to 4 weeks. At Property Rescue, we buy over 500 properties a year, and our average completion time is 28 days from the day we agree a price. You will typically receive 75-85% of market value, but there are no estate agent fees, we cover solicitor costs (using our recommended independent firm), and the sale is guaranteed once we exchange contracts.
The Bottom Line
An interest-only mortgage ending is not a death sentence. It is a financial deadline that requires action.
Whether you extend, switch, remortgage, release equity, or sell, the critical thing is to start early and communicate with your lender. Every option becomes harder the longer you wait.
If your situation is straightforward and you have time, explore the financial options first. Speak to an independent mortgage adviser. Get proper professional guidance.
If time is short, your chain has broken, or repossession is looming, a fast cash sale can clear the mortgage and stop the clock. We have seen it work many times.
The worst option is no action at all.
Disclaimer
This article is for general informational purposes only and does not constitute financial, tax, or legal advice. Property Rescue is not a mortgage adviser, tax adviser, or solicitor. For advice specific to your circumstances, please consult:
- An FCA-regulated mortgage adviser for mortgage options
- A qualified accountant or tax adviser for tax implications
- A solicitor for legal matters
Free, impartial guidance is available from MoneyHelper (backed by the government) and Shelter (for housing and repossession advice).
Because of our Sale and Rent Back service, we are one of the only house buying companies in the UK that is regulated by the FCA (Register 522471). Our expertise is in buying property quickly for cash in England and Wales, not in providing financial or legal advice.
Get a free, no-obligation cash offer from Property Rescue. No fees. No legal pack. No risk. Call 020 8634 0224 or get your free cash offer.
