What is the difference between fixed and variable-rate loans?

Learn the distinctions between fixed and variable-rate loans and determine which one aligns better with your financial goals.


Fixed-rate and variable-rate loans are two common types of loans that differ primarily in how the interest rate is structured and whether it remains constant or can change over time. Here are the key differences between fixed-rate and variable-rate loans:

  1. Interest Rate Structure:

    • Fixed-Rate Loan: In a fixed-rate loan, the interest rate remains constant throughout the entire loan term. This means that the monthly payment amount remains the same, making it easier for borrowers to budget and plan for their payments. Fixed-rate loans provide stability and predictability.

    • Variable-Rate Loan (or Adjustable-Rate Loan): In a variable-rate loan, also known as an adjustable-rate loan, the interest rate can fluctuate periodically, usually in accordance with changes in a specified benchmark interest rate or index. This means that your monthly payments can change over time, making it harder to predict future payment amounts.

  2. Initial Interest Rate:

    • Fixed-Rate Loan: The initial interest rate on a fixed-rate loan is set at the time of loan origination and remains the same for the entire loan term. Borrowers know exactly what their interest rate will be from the beginning.

    • Variable-Rate Loan: Variable-rate loans typically start with an initial fixed interest rate that is lower than the prevailing fixed rates for similar loans. This initial rate is often referred to as a "teaser rate" and is in effect for a specific introductory period, such as one, three, five, or seven years.

  3. Interest Rate Adjustments:

    • Fixed-Rate Loan: With a fixed-rate loan, the interest rate and monthly payment amount do not change over the life of the loan. Borrowers have the security of knowing that their payments will remain consistent.

    • Variable-Rate Loan: In a variable-rate loan, the interest rate is subject to periodic adjustments based on the terms of the loan agreement. These adjustments can result in either higher or lower interest rates and monthly payments, depending on the movement of the chosen benchmark rate.

  4. Risk and Uncertainty:

    • Fixed-Rate Loan: Fixed-rate loans are less risky in terms of interest rate fluctuations. Borrowers are protected from rising interest rates, but they may miss out on potential savings if market interest rates decrease.

    • Variable-Rate Loan: Variable-rate loans carry the risk of rising interest rates, which can lead to higher monthly payments. However, borrowers may benefit from lower initial rates and potential savings if market rates decrease.

  5. Suitability:

    • Fixed-Rate Loan: Fixed-rate loans are suitable for borrowers who prioritize stability and want to lock in a consistent monthly payment over the life of the loan. They are a popular choice for long-term financing, such as mortgages.

    • Variable-Rate Loan: Variable-rate loans may be suitable for borrowers who are comfortable with some level of uncertainty and are willing to accept the potential for lower initial rates in exchange for the possibility of future savings. They are often used for shorter-term loans, like adjustable-rate mortgages (ARMs) or certain types of personal loans.

When choosing between fixed-rate and variable-rate loans, consider your financial goals, risk tolerance, and the current interest rate environment. It's also important to carefully review the terms of the loan agreement, including any interest rate caps or limits on how much the rate can change, to fully understand the potential impact on your finances.

Fixed vs. Variable-Rate Loans: Choosing the Right Option.

Fixed-rate loans and variable-rate loans have different advantages and disadvantages. It is important to choose the type of loan that is right for your financial situation and risk tolerance.

Fixed-rate loans have an interest rate that remains the same for the life of the loan. This means that your monthly payments will be the same every month, regardless of what happens to interest rates in the general market.

Variable-rate loans have an interest rate that can change over time. The interest rate is typically tied to a benchmark index, such as the prime rate. This means that your monthly payments can go up or down, depending on the movement of the benchmark index.

Here is a table comparing fixed-rate and variable-rate loans:

FeatureFixed-rate loanVariable-rate loan
Interest rateStays the same for the life of the loanCan change over time
Monthly paymentsStay the same for the life of the loanCan go up or down
RiskLower riskHigher risk
Best forBorrowers who want predictable monthly payments and who are concerned about rising interest ratesBorrowers who are comfortable with the risk of fluctuating monthly payments and who believe that interest rates are likely to remain low or decline

Which type of loan is right for you?

If you want predictable monthly payments and are concerned about rising interest rates, then a fixed-rate loan may be the best option for you. If you are comfortable with the risk of fluctuating monthly payments and believe that interest rates are likely to remain low or decline, then a variable-rate loan may be a better option for you.

Here are some additional factors to consider when choosing between a fixed-rate and variable-rate loan:

  • Your financial situation. If you are on a tight budget, then a fixed-rate loan may be the better option for you, as it will give you the peace of mind of knowing that your monthly payments will not change.
  • Your risk tolerance. If you are risk-averse, then a fixed-rate loan may be the better option for you. If you are more comfortable with risk, then a variable-rate loan may be a better option for you.
  • Your plans for the future. If you plan to keep the loan for a long period of time, such as a 30-year mortgage, then a fixed-rate loan may be the better option for you. If you plan to pay off the loan quickly, such as a 3-year car loan, then a variable-rate loan may be a better option for you.

It is important to talk to a financial advisor to discuss your individual situation and to get help choosing the type of loan that is right for you.