An ARM or adjustable rate mortgage is a type of mortgage loan where the home loan rate fluctuates periodically depending on any of an index measurements. Common indexes used include Prime rate plus x, LIBOR (London Interbank offered rate) or other index, including one developed by the lender. Adjustable rate mortgages have the effect of transferring part of the risk of making the loan from the lender to the borrower. The rates of ARMs usually start lower, but can increase at a much faster rate than the borrower is prepared to cover. The home loan rate starts out at a lower level and then increases (usually) after a waiting period to keep pace with increasing interest rates. The ease of obtaining an adjustable rate mortgage and the lower payments in the beginning are two major advantages of this type of loan. If the borrower’s income increases over time, the ARM is the ideal way to get started with home ownership. The major disadvantage of obtaining a mortgage with a home loan rate that is tied to an outside index is that in most instances, the rates increase over time. If the borrower has obtained a loan with payments at the top end of the borrowing capability, and the interest rates on the loan rise dramatically, the borrower may find that pay raises or earning capacity have not increased as rapidly as the payments on the mortgage loan.

Prime rate
The prime rate, or the rate at which the best banks can borrow money is one of the favorite indexes used to calculate the home loan rate. For instance, the mortgage loan may be listed as prime rate plus two percent. If the mortgage loan is an adjustable rate mortgage, the loan may be structured to start at prime rate plus two percent. If the prime rate increases by one quarter percent, the loan can be increased over time to cost the extra one quarter percent. Usually, the amount cannot be increased more than so many times in a time period. There is also usually a top limit to growth for the loan payment.

Any mortgage lender can agree to lend the borrower money using an adjustable rate mortgage. When the home loan rate increases to the lender, it can in turn be passed on to the borrower. The lure of lower payments and more house for the money lured people into the adjustable interest rate mortgage. Many were told by their banks or mortgage brokers they could refinance before the loan reset.

Because of the falling property values many home owners are unable to refinance adjustable mortgage loans they have. Combine this inability to refinance with adjustable rate mortgage payments that are to hard to pay and foreclosure seems almost impossible to avoid.

If you are one of these homeowners struggling with their adjustable interest rate mortgage you are not alone. In many cases the lender will modify the loan over to a fixed rate loan and give the borrowers a fair market interest rate rate. In other instances they may just extend the fixed rate length of the variable rate home loan. Anothers useful advice for you : Mortgage Refinance Rates, 2nd mortgage rates, home equity rates, mortgage rate comparison,  mortgage rate 30 year fixed, Mortgage Rate Quote. by Alan Lim