A variable rate
mortgage, also known as an adjustable rate mortgage (ARM), is a type of home
loan where the
interest rate fluctuates over time. Unlike a fixed rate mortgage, where the
interest rate remains constant throughout the loan term, a variable rate mortgage is subject to changes based on a specified index. This index is typically tied to a
benchmark interest rate, such as the
prime rate or the London Interbank Offered Rate (LIBOR).
The key characteristic of a variable rate mortgage is that the interest rate can go up or down periodically, usually at predetermined intervals. These adjustments are typically made annually, but they can also occur monthly, quarterly, or semi-annually, depending on the terms of the loan agreement. The frequency of rate adjustments is specified in the loan contract and can vary from one lender to another.
The interest rate adjustments in a variable rate mortgage are based on changes in the underlying index. When the index increases or decreases, the interest rate on the mortgage will be adjusted accordingly. For example, if the index rises by 0.25%, the interest rate on the mortgage may increase by the same amount. Conversely, if the index decreases by 0.25%, the interest rate may decrease by that amount.
To determine the new interest rate, lenders typically add a
margin to the index. The margin is a fixed percentage that remains constant throughout the loan term and represents the lender's
profit. For instance, if the index is 3% and the margin is 2%, the borrower's interest rate would be 5%.
Variable rate mortgages often have an initial fixed-rate period, during which the interest rate remains fixed for a specified period of time, typically ranging from one to ten years. After this initial period, the mortgage converts into an adjustable rate loan, and the interest rate adjustments begin.
One advantage of a variable rate mortgage is that it often starts with a lower initial interest rate compared to a fixed rate mortgage. This can be beneficial for borrowers who plan to sell their home or
refinance their mortgage before the initial fixed-rate period ends. Additionally, if interest rates decrease over time, borrowers with variable rate mortgages may benefit from lower monthly payments.
However, variable rate mortgages also carry some risks. Since the interest rate is not fixed, borrowers face the uncertainty of potential rate increases. If interest rates rise significantly, borrowers may experience higher monthly payments, which could strain their budget. To mitigate this
risk, lenders often impose interest rate caps and periodic adjustment limits to protect borrowers from excessive rate hikes.
In summary, a variable rate mortgage is a type of home loan where the interest rate fluctuates based on changes in a specified index. It offers an initial fixed-rate period followed by periodic adjustments. While it can provide lower initial rates and potential savings if interest rates decline, borrowers should carefully consider their financial situation and
risk tolerance before opting for a variable rate mortgage.