The exact rate charged in case of an adjustable mortgage scheme is determined at the beginning of each fiscal year. A fiscal year starts from 1^st January and ends on 31^st December of the same year. Right at the onset of the fiscal year, your lender will calculate a rate of lending depending on the fluctuations in the housing sector and real estate sector. This rate is determined keeping in mind a number of factors like

-rate of inflation

-rate of lending

-credit worthiness

-and so on.

Keeping these various factors in mind, the rate of adjustable mortgage is determined. This pre-determined rate of interest is applicable for the rest of the fiscal year, though it can be revised at any time. Depending on the credit cycle, it is seen that the interest rate for adjustable mortgages diminishes or rises with every passing year.

The pitfall is that this rate can increase substantially, and people may find it more and more difficult to make their payments and retain their property. For example, if the interest rate goes up by 1%, people, who earlier had to pay about $500 towards an adjustable rate mortgage payment, may have to shell out as much as $ 570-600 for the same home (depending on the mortgage details).

Any sudden increase in adjustable rate mortgage payments will make it more and more difficult for people to retain their property, especially if their income is either constant or shrinking due to wage cut amidst an increase in the interest payment on their property.

If there are good economic conditions and the credit cycle favors, you may benefit from the fall in interest rates of your adjustable rate mortgage. If you are unsure of how interest rates will behave, the only thing that one can do is switch to a fixed rate of mortgage. In case of a fixed rate mortgage, the rate of interest is pre-fixed at the time of taking the mortgage, and hence, is not dependant on any external market conditions.