Steve and Lisa's Mortgage Morsels

What is an Adjustable Rate Mortgage [ARMs]?

December 16th, 2011 8:54 AM by Steve Iltis

Generally, ARMs determine what you must pay based on an outside index,LIBOR[ London inter Bank Offered Rate, the one-year Treasury Security rate, the Federal Home Loan Bank's 11th District Cost of Funds Index (COFI), or others. They may adjust every six months or once a year. LIBOR is the most common index today

Most programs have a "cap" that protects you from your monthly payment going up too much at once. There may be a cap on how much your interest rate can go up in one period -- say, no more than two percent per year, even if the underlying index goes up by more than two percent. You may have a "payment cap," that instead of capping the interest rate, directly caps the amount your monthly payment can go up in one period. In addition, almost all ARM programs have a "lifetime cap" -- your interest rate can never exceed that cap amount, no matter what.

ARMs often have their lowest, most attractive rates at the beginning of the loan, and can guarantee that rate for anywhere from a month to ten years. You may hear people talking about or read about what are called "3/1 ARMs" or "5/1 ARMs" or the like. That means that the introductory rate is set for three or five years, and then adjusts according to an index every year thereafter for the life of the loan. Loans like this are often best for people who anticipate moving -- and therefore selling the house to be mortgaged -- within three or five years, depending on how long the lower rate will be in effect.

You might choose an ARM to take advantage of a lower introductory rate because you anticipate paying the mortgage off before the fixed rate period is over.

Posted in:General
Posted by Steve Iltis on December 16th, 2011 8:54 AM


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