Buy-to-let fixed mortgage rates are soaring in response to the Iran war, according to Moneyfacts data.
Average buy-to-let fixed rates over a two or five-year term have risen since the start of March 2026. The two-year rate is at its highest level for a year at 5.29%, while the five-year rate is at its highest level for two years at 5.63%.
Borrowing costs for those who take a two-year fixed deal are now £1,100 higher, compared to the start of March, based on a £250,000 loan with a 25-year term.
Overall buy-to-let product choice (fixed and variable) has fallen sharply, by around 1,300 deals since the start of March.
Rachel Springall, finance expert at Moneyfactscompare, said: “Soaring borrowing costs will cause pain to landlords this year, as they join millions of consumers facing higher mortgage repayments. This is terrible news, as rising costs could lead to higher rental payments for tenants, or a drop in the pool of properties available for rent if landlords decide enough is enough and sell off their portfolio. The unrest in the Middle East has caused absolute mayhem in the residential mortgage market, buy-to-let rates are also being hiked, and hundreds of deals have been pulled from sale.
“The positive sentiment entering 2026 has been shattered, and landlords not only have to face higher borrowing costs, but also prepare themselves for the Renters’ Rights Bill, which comes into effect at the start of May 2026. Those who were to take out a mortgage now compared to the start of this month will face higher repayments of £1,100 more a year. This is based on a borrowing of £250,000, over 25 years at 5.29%, versus 4.66% at the start of March 2026.
“It is entirely possible that landlords may have to take on an additional loan to cover refurbishment costs, to ensure they abide by the Decent Homes Standard, which is set out in the Renters’ Rights Bill. It is of course essential that tenants feel safe and secure in their homes, and it will be ever more essential to have a dwelling as energy-efficient as possible with rising costs expected this summer. Thankfully, lots of progress would have been made to make private lets more energy-efficient over the past six years, under the Minimum Energy Efficiency Standard (MEES) regulations, whereby landlords have been prohibited from letting properties with an EPC rating below E. However, landlords’ costs will escalate further, as they are expected to invest up to £10,000 as a spending cap to reach an EPC rating of C by October 2030, subject to the value of a property. If that EPC rating is not achieved, landlords could face substantial fines, as the rules apply to all tenancies.”
