Learn / Fixed vs Adjustable Rate
A fixed-rate mortgage keeps the same rate for the whole term. An adjustable-rate mortgage (ARM) starts lower, then can change on a schedule.
The rate and the principal-and-interest payment stay the same for the life of the loan. This gives predictable payments and is the most popular choice.
An ARM offers a lower fixed rate for an intro period, such as the 7 years in a 7/6 ARM, then adjusts periodically based on an index plus a margin. Caps limit how much the rate can move at each adjustment and over the life of the loan.
A fixed rate fits buyers who want certainty or plan to stay long term. An ARM can fit buyers who expect to move or refinance before the fixed period ends, or who want a lower starting payment and accept the risk of later adjustments.
What drives ARM indexes
Fixed and ARM options
Switch structures later
ARM terms defined
Fixed gives certainty; an ARM offers a lower start with future adjustment risk. It depends on how long you will keep the loan.
A loan fixed for 7 years, then adjustable every 6 months based on an index plus a margin, within caps.
It can rise at each adjustment, but rate caps limit how much it moves per period and overall.