Are you a buy-to-let landlord in the UK?

If so, you might feel the pinch as mortgage interest rates continue rising. In this blog post, we delve into the latest research from Hamptons that reveals a staggering 40% increase in mortgage interest payments for BTL landlords year over year. Join us as we explore the factors contributing to this surge and the potential consequences for the rental market.

According to the figures provided by Hamptons, the collective mortgage interest payments by buy-to-let landlords in the UK have reached a staggering £15 billion annually. This represents a significant 40% increase, equivalent to £4.3 billion, in just the last 12 months. The rise can be attributed to a combination of new investor purchases at higher interest rates, existing tracker rates increasing, and fixed-term mortgage deals expiring.

By to Let

An Interesting Shift in Borrowing Costs:

For years, landlords enjoyed falling borrowing costs, allowing them to maximize their rental income. However, as of 2021, that trend has reversed. Despite the number of outstanding buy-to-let mortgages decreasing, the total value of all mortgages has remained relatively flat. This suggests that landlords have either paid down their debt or decided to exit the market.

The Impact on Rental Income and Landlords’ Financial Burden:

Mortgage interest payments now account for around 26% of all rental income in the UK, a significant increase from the low of 17% in January 2022. For mortgaged landlords, the burden is even greater, with an average of 37% of rent being allocated to mortgage interest in August. With mortgage rates predicted to rise further, there is a growing concern about the affordability of these payments for landlords.

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The Potential Consequences for the Rental Market:

As mortgage rates continue to climb, more landlords will be forced to allocate a significant portion of their rental income towards interest payments. This situation could increase rental rates as landlords seek to cover rising costs. Hamptons predicts that the amount of mortgage interest paid by landlords could exceed £20 billion in the next two years, putting financial pressure on landlords and potentially further driving up rents.

The Road Ahead for BTL Landlords:

If you’re a buy-to-let landlord, staying informed about the changing landscape of mortgage interest rates is crucial. As your fixed mortgage terms expire, the availability of cheap mortgage rates will diminish unless there is a substantial decrease in rates. It’s essential to consider these factors when planning your long-term investment strategy.


The rise in mortgage interest rates has become a significant concern for buy-to-let landlords across the UK. With a 40% increase in mortgage interest payments year over year, landlords are facing mounting financial pressure. As rates continue to climb, the proportion of rental income allocated to mortgage interest will rise, potentially impacting rental prices. To stay ahead in this changing market, landlords must carefully navigate the challenges and explore strategies to mitigate the impact on their investments.

Are you a buy-to-let landlord feeling the burden of rising mortgage interest rates? Stay informed and proactive to guard your financial well-being. Stay tuned for more insights and updates on the evolving rental market. Take charge of your investments today!