An interest-only mortgage means lower monthly payments, but you’ll have to pay back the total balance at the end of your term. Learn more and compare interest-only deals to help you work out if they’re the right option for you.
Compare interest only mortgages
Compare interest-only mortgages and see how your monthly payments would change depending on the initial period, total mortgage length, your deposit and how much you want to borrow.
After you choose an interest-only mortgage deal, one of our expert mortgage brokers can check whether you're eligible and help arrange the mortgage for you.
Your home may be repossessed if you do not keep up repayments on your mortgage.
Find a mortgage that suits you
Tell us what you're looking for and we’ll search 12,000 deals from 90 lenders.
What is an interest-only mortgage?
An interest-only mortgage works by only including the interest you’ve accrued in your monthly repayments. You don’t pay back any of the capital you’ve borrowed, which means your payments will be less than on a repayment mortgage.
However, you will still owe the full mortgage amount at the end of your mortgage term. This will usually need to be repaid as a lump sum, so you must understand how you’ll cover this final payment before applying.
What’s the difference between repayment and interest-only?
If you have a repayment mortgage, you pay off the interest and a small part of the loan balance every month. This means your monthly payments will be higher because you’re clearing some of your mortgage with each repayment.
At the end of your repayment mortgage term, you will have cleared your loan and have nothing left to pay if you have kept up with your payments.
For example, if you borrow £240,000 on a repayment basis at a 4% interest rate, your monthly payment would be £1,266 over a 25-year term. However, once the mortgage ended, you would have nothing else to pay.
The same mortgage on an interest-only basis would result in a much lower monthly payment of £800. At the end of the 25-year term, you would then need to repay the initial £240,000 back to your lender, usually as one lump sum.
In this example, you would pay a total of £379,883 over the full term with a repayment mortgage. With interest-only, you would pay a total of £479,760 - nearly £100,000 more over the 25-year term.
Should I get an interest-only or repayment mortgage?
An interest-only mortgage can be a good option if you need to keep your monthly payments down, but there are several important things to consider first. One of the most important is understanding how you will repay the balance at the end of your mortgage.
If you don’t have a repayment plan in place, an interest-only mortgage is a risky option. Here are the pros and cons of interest-only mortgages to help you work out if they’re right for you:
Pros of interest-only mortgages
Lower monthly payments: You will pay much less each month compared to the same mortgage deal on a repayment basis.
Borrow more: You could potentially buy a more expensive home by borrowing more than you’d be able to on a repayment mortgage.
Flexibility: You could be able to make overpayments when you can afford to or switch to a repayment plan if your situation changes.
Buy-to-let option: Interest only is popular with landlords as it keeps costs down, and the property can be sold at the end of the mortgage to repay the loan.
Cons of interest-only mortgages
More expensive overall: With an interest-only mortgage, the balance of your mortgage doesn’t go down, so you always have to pay interest on the full balance. This means it usually costs more overall than a repayment loan.
Paying off the capital: At the end of the term, you need something in place to repay the loan. If you can’t, you run the risk of having your home repossessed.
Large deposit: Lenders consider interest-only mortgages high-risk, so many ask for a deposit of at least 25% and expect you to be a high earner.
Risk of a shortfall: If something happens to your repayment plan and it doesn’t cover your loan, you’ll need to find a way to make up the shortfall.
What happens at the end of my interest-only mortgage?
Once your mortgage term ends, your lender will ask you to repay the amount you borrowed back in full. To do this, you will need to have a repayment plan in place.
Most lenders will ask you what this is when you apply for an interest-only mortgage deal. They may choose not to lend to you if you can’t provide evidence of your repayment plan.
There are several different ways you can pay off your interest-only mortgage, including:
Savings and investments: If you have managed to save and invest enough, you can use this to pay off your mortgage balance. However, relying on investments can be risky as their value can go down as well as up.
Pension lump sum: You could receive a lump sum from your pension when you retire to cover your mortgage. Again, be careful not to rely on this, as you could receive less than projected if your pension goes down.
Switch to repayment: If you can afford to, you could switch to a repayment mortgage and start paying off the balance. Don’t forget your monthly payments will be higher, but you could extend your mortgage term to reduce your repayments.
Remortgage: You could switch to a new deal and continue making monthly payments. Be aware that eligibility criteria will still apply, and your age at the end of your mortgage might limit your options.
Sell your property: You could agree to sell your property once your term ends, provided the value covers the amount you owe. If it has increased in value, you can use the equity to buy a new home.
Our expert says…
“An interest-only mortgage can seem attractive because it means cheaper monthly payments. However, remember that you’ll need to pay off the balance at the end of your term, so you’ll need a solid repayment plan.
”Interest-only deals are considered high-risk, so not all lenders offer them. To help you find the right option, compare deals and speak to one of our expert advisors.” - Jon Bone \ CeMAP-qualified mortgage adviser
Interest-only mortgage FAQs
Interest-only mortgages are still available; however, they are a lot less common than they used to be.
Most lenders consider interest-only mortgages high risk because you need to pay back the loan as a lump sum. For this reason, the eligibility criteria tend to be strict, and some lenders choose not to offer them at all.
To get an interest-only mortgage, you will need to put down a large deposit of at least 25%, pass rigorous affordability checks, and prove that you have a repayment plan in place.
Although interest-only mortgage rates are harder to find than repayment, they are available across the market. Here are the main mortgage types you can get as interest-only:
Fixed-rate mortgages: Having a fixed rate means your interest rate and monthly repayments will stay the same throughout the deal term. They’re available at various term lengths, including 2-year, 3-year, 5-year and 10-year fixed rates.
Variable-rate mortgages: These have a rate that can fluctuate over time, usually in response to the Bank of England base rate. The most common variable-rate products include discount mortgages and tracker mortgages.
Buy-to-let mortgages: This is a popular mortgage to have as interest-only. They’re designed specifically for those who buy property to rent out. If you buy a rental property, you need a buy-to-let mortgage rather than an interest-only residential mortgage.
A retirement interest-only mortgage works like a standard one; however, there is no fixed end date.
Instead, they work like an equity-release scheme, and you only pay off the loan when you die, move into long-term care, or sell your home. These products are aimed at older borrowers over 55 and are an option when your standard interest-only mortgage ends.
To take out an interest-only retirement mortgage, you usually only need to prove that you can afford the monthly payments. They might be a viable option to take out once your interest-only mortgage has ended if you don’t have another repayment vehicle.
If you’re coming to the end of your interest-only mortgage term and don’t think you’ll be able to repay the balance, contact your lender as soon as possible.
Explaining the situation to them with as much notice as possible gives you the best chance of coming up with a solution together. They may suggest extending your mortgage term to give you more time to find a repayment method, for example.
Alternatively, you might be able to remortgage to a more appropriate deal that allows you to repay the balance over time.
If no other options are available, you might need to consider selling your home to cover the cost. If your property has significantly increased in value since you took the mortgage out, you could use the equity to help you buy a new home.
What people are saying about Better.co.uk...
Get a mortgage with Better.co.uk today
Important info & marketing claims
You may have to pay an early repayment charge to your existing lender if you remortgage. Your savings will depend on personal circumstances.
Your home may be repossessed if you do not keep up repayments on your mortgage.
*The savings figure of £420 is based on Better.co.uk remortgage customers in October 2023. Read more on our marketing claims page.
We can't always guarantee we will be able to help you with your mortgage application depending on your credit history and circumstances.
Average mortgage decision and approval times are based on Better.co.uk's historic data for lenders we submit applications to.
Tracker rates are identified after comparing over 12,000 mortgage products from over 100 mortgage lenders.
As of January 2023, Better.co.uk has access to over 100 lenders. This number is subject to change.
For buy-to-let landlords, there's no guarantee that it will be possible to arrange continuous letting of a property, nor that rental income will be sufficient to meet the cost of the mortgage.