Home > Personal > Personal Lending > Mortgage > Mortgage Resources > Glossary > Interest Rate Floor Interest Rate Floor November 9, 2021 The minimum interest rate for an adjustable-rate mortgage (ARM), as specified in the mortgage loan note.You Might Also Like: All Things CommunityReviewing Random Acts of Kindness 2023 Everyday MoneyWhat are ACH Payments and How Do They Work? Family MattersFun Games to Teach Kids About Money Everyday MoneyWhat is the Difference Between a Credit Card and a Debit Card? Family MattersBudget Friendly Easter Basket Ideas