Platform, the intermediary mortgage brand of The Co-operative Bank, has reduced rates on all 90% LTV mortgages.
Rates across 2, 3 and 5-year fixed rate products have been cut by up to 0.15%.
It has also reduced some 2-year fixed rate buy-to-let mortgages for both new and existing customers by up to 0.05%.
Paul Norcott, head of mortgages and insurance, said: “Platform is kicking off 2018 with competitive rates to help our broker partners find the best value deal for their clients whose New Year resolutions might include buying their first home, their first rental property or remortgaging their property to bring down their monthly repayments.
“We want to be the go-to provider for advisers this year and we plan to continue to offer consistently competitive rates for a range of circumstances throughout 2018.”
Platform has cut some other mortgage products across its residential range by up to 0.15%.
It has also reduced selected 2-year fixed rate buy-to-let mortgages for both new and existing customers by up to 0.05%.