Adjustable rates
Many new and existing home buyers consider adjustable-rate mortgage (ARM) options when financing an investment. ARMs have a variable interest rate and monthly payment structure which differs from fixed-rate mortgages, which are consistent across the life of the contract. Many property buyers can evaluate which mortgage structure is most effective for their needs based upon the long-run investment plan for the property, the larger shifts in the interest rate market and your credit score. When evaluate an adjustable-rate mortgage against a fixed structure, it's important to consider the bottom line costs of the mortgage over time under a variety of scenarios. Many home owners have recently reconsidered their choice of adjustable rate mortgage in light of changes in the housing market, which have made fixed-rate mortgages more affordable as property values shift.
Considerations in opting for an adjustable-rate mortgage
While the initial appeal of an adjustable-rate mortgage lies in its variable interest structure. In particular, ARMs offer a comparative advantage in markets where interest rates are higher. During periods of higher interest rates, ARMs shift over time leading to high levels of variance in mortgage payments. While buyers with lower credit scores may find adjustable-rate mortgages are more accessible for financing, they also pose potential risks in terms of variable payments over time. Many real estate buyers prefer the stability of a fixed-rate mortgage which offers a stable monthly payment from month to month. By contrast, ARM payments are a factor of three primary variables which can shift over time. In particular, an adjustable rate mortgage is determined based upon an index, margin and computed interest rate. These variables can lead to shifting payments over time for home owners, resulting in high levels of variance in payments.
At a base level, the index serves as a proxy for the financing institutions borrowing costs. This index is based upon the costs of certain investments such as Treasury Bills as well as indices of mortgage rates from the Federal Housing Finance Board and other institutions. When the cost of borrowing from these sources increases, the rate on the ARM will subsequently grow. To ensure the lender earns a return on their investment, each ARM interest rate includes a spread margin which is the difference between the base market and actual interest on the loan. Margins can vary widely across lenders, and are partially based upon the borrower's credit score. The rates on an ARM, therefore are a product of macroeconomic factors that impact the costs of borrowing. Since a mortgage holder often, in turn, borrowers from another bank they have to pass along these costs. The combination of borrowing index costs and margins lead to a variable calculated interest rate. When rates are adjusted based upon factors in the market as well as the borrowing contract, the calculated interest rate will also change over time.
Understanding the Structure of your ARM rate
Recently, many home owners have struggled with adjustments in their variable interest rates on ARM mortgages. The initial rates (also known as "teaser rates") on these mortgages is active for only a limited period, and the long term rates then adjust based on shifts in the borrowing index rates. Each ARM will shift over time, and initial rates are generally re-calculated based upon borrowing costs after 6 month or 1 year. After that period, loans are then financed with higher interest rates - when market conditions increase the costs of borrowing, it can become harder to afford these rates.
One option home owners can rely upon for some stability in variable-rate borrowing costs are soft caps on shifts in interest rates. Commonly, borrowers can find a lifetime or periodic cap on shifts from the initial (teaser) rate to the long run borrowing costs. Commonly, there are also conditions in which interest payments can exceed these levels under a negative amortization. Additionally, variable rates can lead borrowing costs to exceed property values in certain conditions. Borrowers should always check with the mortgage holder to better understand these options.
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