Landlords across the UK are confronting a severe financial squeeze as buy-to-let mortgage rates surge dramatically, with experts warning that these escalating costs will inevitably be transferred to tenants through higher rents. According to the latest data from the financial information website Moneyfactscompare.co.uk, the average rates for both two-year and five-year fixed buy-to-let mortgages have climbed sharply since the beginning of March, reaching their highest levels in over a year.
Sharp Increases in Mortgage Rates
The figures reveal that the average two-year fixed buy-to-let mortgage rate available on the market as of March 26 stood at 5.29%, marking the highest point since February 2025. Similarly, the average five-year fixed rate reached 5.63%, a peak not seen since January 2024. This upward trend in borrowing costs is placing significant pressure on landlords' profit margins, with many facing the difficult decision of whether to absorb the increases or pass them on to renters.
Product Choice Plummets Amid Market Unrest
Compounding the issue, the overall selection of buy-to-let mortgage products, which includes both fixed and variable rate deals, has experienced a drastic reduction. Since the start of March, approximately 1,300 mortgage deals have been withdrawn from the market, severely limiting options for property investors. Finance expert Rachel Springall from Moneyfactscompare.co.uk described the situation as "absolute mayhem", attributing the turmoil to ongoing unrest in the Middle East that has destabilised the residential mortgage sector.
Ms Springall emphasised, "The positive sentiment that characterised the beginning of 2026 has been completely shattered. Buy-to-let rates are being aggressively hiked, and hundreds of deals have been pulled from sale, creating a challenging environment for both new and existing landlords."
Ripple Effects on the Rental Market
The consequences of this mortgage crisis extend far beyond landlords, directly impacting tenants and the broader rental housing supply. Ms Springall cautioned that rising mortgage costs for landlords are likely to filter through to tenants in the form of increased rental payments. Additionally, there is a growing concern that a shrinking pool of rental properties could emerge if more landlords opt to sell their investments due to unsustainable financial pressures.
David Fell, lead analyst at the property firm Hamptons, drew parallels to previous market fluctuations, noting, "The last time mortgage rates spiked significantly in late 2022, landlords' higher costs were rapidly passed on to tenants, resulting in swiftly rising rents. Tenants searching for new accommodations were forced into bidding wars above asking prices, while those renewing existing contracts, who may have enjoyed stable rents for years, also faced substantial increases."
Future Outlook and Legislative Challenges
Looking ahead, Mr Fell warned of potential further disruptions, stating, "If interest rates remain elevated at current levels, there is a genuine risk that we will witness a second wave of elevated rental growth, exacerbating affordability issues for renters across the country." Meanwhile, landlords must also navigate new regulatory rules, adding another layer of complexity to their financial planning.
Ms Springall advised that seeking professional financial advice has become essential for landlords to manage the dual challenges of changing legislation and rising costs. She highlighted the importance of understanding how interest rate rises will impact profit margins, urging landlords to stay informed and proactive in this volatile market climate.
