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: Living QuartersMortgage Lending for Veterans at Bank Five Nine All Things CommunityReviewing Random Acts of Kindness 2023 Everyday MoneyWhat are ACH Payments and How Do They Work? Living QuartersUnderstanding Mortgage Interest Rates Family MattersFun Games to Teach Kids About Money