Convertible ARMs

Some ARMs come with option to convert them to a fixed-rate mortgage at designated times (usually during the first five years on the adjustment date), if you see interest rates starting to rise. The new rate is established at the current market rate for fixed-rate mortgages.

The conversion is typically done for a nominal fee and requires almost no paperwork. The disadvantage is that the conversion interest rate is typically a little higher than the market rate at that time.

The other kind of convertible mortgage is a fixed rate loan with rate reduction option. If rates had dropped since the time of closing it allows you, under some prescribed conditions, for a small conversion fee to adjust your mortgage to going market rate. Generally the interest rate or discount points may be a little higher for a convertible loan.