How to Decide if an adjustable rate mortgage
The first figure in each set refers to the initial period of the loan, during which your interest rate will stay the same as it was on the day you signed your loan papers.
The second number is the adjustment period, showing how often adjustments can be made to the rate after the initial period has ended. The examples above are all ARMs with annual adjustments–meaning adjustments could happen every year.
When you’re buying a home you might encounter sellers who offer to pay a buydown fee that allows the lender to offer you an initial rate that’s lower than the sum of the index and the margin. New home builders sometimes offer that type of purchase package to help get people into their homes.