What happens when my interest-only buy-to-let mortgage ends?
At the end of an interest-only mortgage term the whole loan becomes due. Landlords must repay it from savings, refinance, or sell the property. Lenders expect a plan in place before the term ends; if the loan is not repaid, it can go into default and, ultimately, the lender can take possession and sell.
Read more in our guide: Mortgage debt and your portfolio
Options at term end
| Option | What it involves |
|---|---|
| Repay from savings | Clears the loan; property owned outright |
| Refinance | New loan, subject to age, ICR and LTV limits |
| Term extension | Existing lender agrees more time, often short |
| Sell | Proceeds repay the loan on completion |
| Do nothing | Default, interest and charges, risk of receivership or possession |
Why it is a growing issue
Many landlords took 20- or 25-year interest-only loans in the 2000s, expecting to repay from rising values. Those terms are now ending. The balance has never reduced, and some borrowers are reaching ages at which lenders limit new lending.
What lenders expect
Lenders usually write to borrowers in the years before term end asking for a repayment plan. If the loan is not repaid on time, interest continues and default charges may apply. On buy-to-let loans lenders often appoint a receiver of rent, who collects rent and can sell the property, rather than going to court for a possession order.
Choosing a route
Refinancing depends on passing current tests at current rates; see refinancing versus selling. Selling on your own timetable almost always achieves a better price than a sale by a receiver. Where several loans end at once, a portfolio sale to one buyer can clear them together.
Remember the tax
Selling to repay the loan crystallises Capital Gains Tax on the full gain, which is not reduced by the mortgage. A property bought cheaply and remortgaged can produce a tax bill larger than the cash left after repaying the loan; see negative equity. Plan both together.
Official Sources and Further Reading
General information for landlords in England, checked against official sources in October 2026. It is not tax, legal or financial advice: speak to a qualified accountant or solicitor about your own circumstances.
Frequently Asked Questions
At the end of an interest-only mortgage term the whole loan becomes due. Landlords must repay it from savings, refinance, or sell the property. Lenders expect a plan in place before the term ends; if the loan is not repaid, it can go into default and, ultimately, the lender can take possession and sell.
Some will, especially if a sale is underway, but extensions are usually short and may come with conditions.
An agent appointed by a lender under the mortgage to collect rent and, if needed, sell the property to repay the loan.
Yes. An investor buyer takes on the tenancy and the mortgage is repaid on completion.
Thinking About Selling Your Portfolio?
Ask for a no-obligation portfolio appraisal, or call us to talk through your options in confidence.