A rate floor is the contractual minimum below which an adjustable-rate mortgage rate will not fall.
A rate floor is the contractual minimum below which an adjustable-rate mortgage rate will not fall.
Rate floor matters because some borrowers assume that if benchmarks fall enough, the ARM will always keep dropping in the same way. The floor helps define where that downward movement can stop.
It also matters because the borrower needs to understand both sides of the adjustment range. Caps and floors together help show the guardrails of the ARM structure.
Borrowers encounter rate floors when reading ARM disclosures and trying to understand how the loan may behave after the initial fixed period.
The term becomes most useful when comparing ARM structures rather than just comparing their introductory rates.
A borrower sees that the ARM rate can adjust downward if market conditions support it, but only down to a stated minimum. That minimum is the rate floor.
Rate floor differs from Rate Cap because the floor sets the lower boundary, while the cap sets the upper boundary.
It also differs from Teaser Rate. The teaser rate is an introductory pricing concept, while the floor is a long-run contractual boundary on downward adjustment.