The changes apply to a large proportion of Foundation’s specialist BTL offering covering standard and large HMOs, plus MUFBs, which have seen rates cut by up to 30bps, and now start at 4.24%.

The lender has also introduced new two- and five-year, fixed-rate, 3% fee products at 65%, 75% and 80% loan-to-value (LTV) for both standard HMO and MUFB properties.

Short term lets and holiday let products have also seen rates reduced by up to 15bps, with rates starting at 5.99%.

Rates on two F3 products have also been cut by 30bps, with both the two- and five-year fixed-rate (with a 2% fee) now available at 6.54% and 6.34%, respectively.

Foundation has also introduced two new fixed-rate products for expat borrowers.

Both are for F1 borrowers with both 65% and 75% LTV options, and rates starting at 4.39% for two-years (3% fee) and 5.09% for five-years (4% fee).

Rates have also been cut on the lender’s property plus, HMO Plus, STL Plus, MPOTs, Mixed Use and Mixed Use Expat products.

Foundation director of sales Grant Hendry says: “Specialist buy to let remains a core focus for us and these latest rate cuts underline our commitment to supporting brokers across a wide range of cases.”

“By reducing pricing across many of our specialist products, we’re reinforcing both the breadth of our range and our reliability as a lending partner in a market where brokers and their clients need options they can trust.”

“Our proposition is built around flexibility. From HMOs and MUFBs to Short Term Lets, Holiday Lets and Mixed Use, we aim to give brokers products that work for real-world scenarios.”

“This combination of lower rates and new fixed rate options at different LTVs gives brokers more control when placing business for their landlord clients.”

Elsewhere, Suffolk Building Society has made rate reductions of up to 26bps to its fixed rate, 80% LTV, BTL mortgages.

Two- and five-year fixed rate expat BTL mortgages will both be cut, with reductions up to 15bps, and two- and five-year fixed rate expat holiday let will be lowered by up to 19bps.

The society’s BTL five-year fixed rate and BTL five-year fixed rate light refurb will be trimmed by as much as 26bps, and its BTL two-year fixed rate will be reduced by 14bps.

Its five-year fixed rate holiday let and its two-year fixed rate holiday let will be cut by 14bps and 10bps, respectively.

Suffolk Building Society head of intermediaries Charlotte Grimshaw says: “Landlords could do with some good news right now. With taxes on rental income due to change in 2027, and the changes brought about by the Renters Right Act (2025), landlords continue to face challenges and new normals. Cutting our buy to let rates is a practical way to offer support where we can.”

“However, a great rate doesn’t stack up unless it’s backed by great criteria. So, alongside these reductions, we’re maintaining our flexible criteria to support borrowers who need a bit more headroom on some of the nuanced parts of their circumstances, whether they’re living abroad, or looking for a regulated BTL for a family member.”