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Fixed-rate vs. adjustable-rate mortgage (ARM): which should I choose?

Financial Toolset Team5 min read

Fixed-rate mortgages have the same interest rate for the entire loan term, providing payment stability and predictability—you always know exactly what you'll pay. Adjustable-rate mortgages (ARMs) t...

Fixed-rate vs. adjustable-rate mortgage (ARM): which should I choose?

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Fixed-Rate vs. Adjustable-Rate Mortgage: Which Should You Choose?

Deciding between a fixed-rate mortgage and an adjustable-rate mortgage (ARM) can feel daunting, especially with the stakes as high as your future homeownership. Both options have their advantages and potential drawbacks, and the right choice largely depends on your financial situation and future plans. This article will break down the differences, benefits, and risks associated with each type of mortgage to help you make an informed decision.

Understanding Fixed-Rate Mortgages

A fixed-rate mortgage is exactly what it sounds like: a loan with an interest rate that remains unchanged throughout the life of the loan. This type of mortgage provides stability and predictability, as your monthly principal and interest payments will remain constant. Fixed-rate mortgages are typically available in terms of 15, 20, or 30 years.

Benefits of Fixed-Rate Mortgages

  • Payment Stability: Your monthly mortgage payment remains the same, making it easier to budget.
  • Long-Term Planning: Ideal if you plan to stay in your home for a long period (7+ years).
  • Protection Against Rate Increases: You won't be affected by rising interest rates in the market.

Drawbacks of Fixed-Rate Mortgages

  • Higher Initial Rates: Generally, fixed-rate mortgages start with higher interest rates compared to ARMs.
  • Less Flexibility: If market rates fall, you're locked into your higher rate unless you refinance, which may involve additional costs.

Understanding Adjustable-Rate Mortgages (ARM)

An adjustable-rate mortgage typically offers a lower initial interest rate compared to a fixed-rate mortgage. This rate is fixed for an initial period—commonly 5, 7, or 10 years—after which it adjusts annually based on market conditions.

Benefits of ARMs

  • Lower Initial Payments: The initial rate is often about 0.5% to 1% lower than a fixed-rate mortgage.
  • Potential for Lower Overall Costs: If you plan to sell or refinance before the adjustable period, you might save money.
  • Qualification for Higher Loan Amounts: Lower initial payments can enable you to qualify for a more expensive home.

Drawbacks of ARMs

Real-World Examples

Fixed-Rate Mortgage Example

Consider a $300,000 loan at a 4% interest rate for 30 years. Your monthly payment for principal and interest would be approximately $1,432. This amount remains constant throughout the loan term, providing peace of mind and predictable budgeting.

ARM Example

Now, consider a 5/1 ARM on the same $300,000 loan with an initial rate of 3.5% for the first five years. Your initial monthly payment would be about $1,347. After five years, if market rates rise, your payment could increase significantly. For instance, if the rate adjusts to 5%, your payment could climb to approximately $1,610.

Common Mistakes and Considerations

  • Underestimating Rate Adjustments: Some borrowers might not fully understand how high their payments can rise with an ARM.
  • Not Planning for the Long-Term: If you choose an ARM thinking you'll refinance or sell before the adjustment period but then don't, you could face financial strain.
  • Ignoring Market Conditions: When market interest rates are low, a fixed-rate mortgage might be a better choice to lock in a favorable rate.

Bottom Line

Choosing between a fixed-rate and an adjustable-rate mortgage depends on your financial goals, your risk tolerance, and your future plans. If you value stability and plan to stay in your home long-term, a fixed-rate mortgage might be the best choice. However, if you anticipate moving or refinancing before the ARM adjusts, the lower initial payments of an ARM could be beneficial.

Ultimately, evaluate your personal circumstances and consider consulting with a financial advisor or mortgage professional to make the most informed decision. Understanding your options can lead to a more confident and secure home buying experience.

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Frequently Asked Questions

Common questions about the Fixed-rate vs. adjustable-rate mortgage (ARM): which should I choose?

Fixed-rate mortgages have the same interest rate for the entire loan term, providing payment stability and predictability—you always know exactly what you'll pay. Adjustable-rate mortgages (ARMs) t...
Fixed-rate vs. adjustable-rate mortgage (ARM... | FinToolset