Pros And Cons Of An Adjustable-Rate Mortgage

Adjustable-rate mortgage
An adjustable-rate mortgage can be a great option for many home buyers.

An Adjustable-rate mortgage (ARM) is a tempting option for many home buyers, especially those enticed by the typically lower introductory interest rates. But before you jump on the ARM bandwagon, it’s crucial to weigh the pros and cons carefully. Let’s delve into the key aspects of ARMs to help you make an informed decision.

What is an adjustable-rate mortgage?

An ARM is a mortgage with an interest rate that adjusts periodically, unlike a fixed-rate mortgage where the rate remains constant throughout the loan term. ARMs typically have an introductory period with a fixed rate, followed by adjustments based on a benchmark index, often the Treasury rate.

Pros of an adjustable-rate mortgage

  • Lower introductory rates: Compared to fixed-rate mortgages, ARMs often boast lower interest rates during the initial period, potentially translating to lower monthly payments and significant savings on interest costs.
  • Flexibility: ARMs offer a degree of flexibility compared to fixed-rate loans. Depending on the specific ARM type, you may have the option to make additional payments without penalty or convert your ARM to a fixed-rate mortgage later.
  • Potentially lower overall interest: If interest rates remain low or decline during the adjustment period, your ARM’s rate could stay lower than a fixed-rate mortgage’s interest rate over the long term.

Cons of an adjustable-rate mortgage

  • Interest rate uncertainty: After the introductory period, your ARM’s rate can fluctuate, potentially leading to higher monthly payments, especially if interest rates rise. This unpredictability can strain your budget and make financial planning challenging.
  • Risk of payment shock: Significant interest rate increases can dramatically raise your monthly payments, making it difficult to manage your finances. This risk is particularly concerning for homeowners on tight budgets.
  • Complexity: ARMs come with intricate terms and conditions, including rate adjustment caps, limits on payment increases, and prepayment penalties. Thoroughly understanding these complexities is crucial before committing to an ARM.

Who should consider an adjustable-rate mortgage?

ARMs might be suitable for:

  • Short-term homeowners: If you plan to sell your home before the introductory period ends or before potential rate adjustments, you can capitalize on the lower initial rate without facing the long-term uncertainty of a variable rate.
  • Borrowers with strong financial positions: Those with stable income and ample financial reserves can better handle potential payment increases associated with interest rate fluctuations.
  • Refinance-savvy borrowers: If you’re confident in your ability to refinance to a fixed-rate mortgage before the introductory period expires, an ARM can offer temporary savings.

Who should avoid an adjustable-rate mortgage?

ARMs are generally not recommended for:

  • Risk-averse borrowers: If you’re uncomfortable with the uncertainty of fluctuating interest rates and potential payment increases, a fixed-rate mortgage offers greater stability and predictability.
  • Long-term homeowners: If you plan to stay in your home for the long haul, the risk of rising interest rates and higher monthly payments over time outweighs the initial benefits of a lower rate.
  • Borrowers on tight budgets: Even small increases in monthly payments can strain your finances if you have limited financial flexibility.


ARMs can be a valuable tool for some homebuyers, but they’re not a one-size-fits-all solution. Carefully consider your financial situation, risk tolerance, and long-term housing plans before deciding if an ARM is the right choice for you. Consulting with a qualified mortgage professional can help you understand the different ARM options and assess whether they align with your financial goals.

Remember, choosing a mortgage is a significant financial decision. Take your time, weigh the pros and cons, and seek professional guidance to ensure you make the best choice for your unique circumstances. In addition to consulting with your mortgage broker, your real estate agent should also be able to provide some valuable insights.

Are you looking to buy or sell real estate in the South Florida area? We can help! Contact Natasha at Live South Florida Realty, Inc. today! Also, be sure to download the free Florida Home Search app for your smartphone or tablet.

By natasha moore

REALTOR® with Live South Florida Realty, Inc.