An adjustable-rate mortgage, also known as an ARM loan, starts with a lower teaser rate or initial interest rate that typically lasts for a few years. After this introductory period, the interest rate can change periodically, depending on the market and the loan’s structure. Many first-time homebuyers are attracted to ARMs because of the low starting rates, but when the loan adjusts, the monthly payments can increase dramatically.
The arm rate is tied to an index rate such as the prime rate, London Interbank Offered Rate (LIBOR), or the Secured Overnight Financing Rate (SOFR). When your ARM resets, your interest rate is recalculated based on the current market conditions, plus a lender-defined margin. This can lead to higher payments, especially if the interest rates rise significantly.
An adjustable rate mortgage offers a unique structure compared to a fixed rate mortgage. In the beginning, you get a lower rate, which can mean significant savings on monthly payments. This can make it easier to qualify for a home, especially if your loan amount is near the conforming loan limit.
However, after the initial fixed rate period, which typically lasts 3, 5, 7, or 10 years, your rate adjusts—often annually. If your loan is a 5/1 ARM, you have a fixed rate for 5 years, followed by a rate adjustment once per year. Each rate hikeafter the adjustment period can increase your loan payments, depending on how high the new interest rate is set.
One of the biggest decisions when choosing a mortgage is whether to go with a fixed rate or an adjustable rate. A fixed rate loan keeps the interest rate and monthly payment the same over the life of the loan. It’s a good option for people who want stability and predictability in their finances.
An ARM loan, on the other hand, comes with risk. After the initial rate period, your payments may rise, especially if interest rates in the economy go up. You’ll want to know the maximum your rate can increase at the first adjustment and over the full loan term.
For many buyers, especially those who plan to sell or refinance before the loan resets, ARMs can still be a smart move. But it’s essential to understand how and when your rate changes.
Several factors influence how your adjustable rate mortgage changes. The new interest rate is determined using an index (like SOFR or the prime rate) plus a margin set by your lender. When your ARM resets, your new rate could be much higher than your initial fixed rate, especially in a rising-rate environment.
For example, if your loan margin is 2.5% and the index rate rises to 5%, your new interest rate becomes 7.5%. If your monthly payment was $1,200 under the teaser rate, it might jump to $1,700 or more after the reset—depending on your loan amount, loan term, and how your lender calculates payments.
It’s also important to remember that some ARMs come with payment caps and rate caps, which limit how much your payment or interest rate can go up each year or over the entire loan term.
If you’re nervous about your monthly payments increasing, a fixed rate loan might be more suitable. While the starting interest rate is usually higher than an ARM’s teaser rate, it provides long-term stability. You’ll always know exactly what your payments will be.
For buyers with tight budgets or those planning to live in the home for many years, fixed rate mortgages offer peace of mind. You don’t need to worry about rate hikes or economic changes impacting your interest rate.
That said, fixed rate mortgages can sometimes be harder to qualify for due to higher monthly payments, and may not be the best fit for every situation. If you’re planning to move or refinance soon, the cost savings from an ARM’s low introductory period might be worth considering.
Many first-time homebuyers are drawn to ARM loans because of their initial affordability. Lower monthly paymentsmake homeownership more accessible, especially when budgets are tight or you’re buying in high-cost areas. But it’s important to understand the risk when the rate changes.
It’s common for people to take on more mortgage than they can afford long-term, only to face payment shock when the ARM resets. That’s why it’s vital to plan ahead. If you’re unsure whether you’ll be able to keep up with higher payments in the future, an ARM might not be the best choice.
A HUD-approved housing counselor, like those available at Credit.org, can help you compare options and figure out if an ARM fits your financial goals.
When your adjustable rate mortgage is about to reset, it’s important to start planning early. The change in your rate can significantly affect your budget, especially if the new interest rate results in much higher monthly payments. Being prepared can help you avoid financial strain—or even foreclosure.
Here are the key steps you should take:
Start by checking your mortgage paperwork for details like:
Knowing these figures will help you estimate your future costs.
Your future ARM rate is influenced by the broader economy. Pay attention to:
If rates are climbing, your adjustable rate will likely increase at the time of reset.
Online tools like Credit.org's home mortgage calculator can help you estimate your new payment based on projected interest rates. This allows you to budget in advance and avoid surprises when your loan payments go up.
A free session with a HUD-approved counselor can help you explore your options. They can explain whether refinancing, selling your home, or transitioning to a fixed rate might be better for you.
If you anticipate a sharp rate hike, refinancing into a fixed rate mortgage may protect you from future uncertainty. While there are closing costs and other loan payments to consider, this option offers more stability.
Refinancing is especially appealing if:
Talk to lenders about your options early—ideally several months before your reset date.
Tip: Some government-backed programs, like those offered by the Federal Housing Administration, may offer refinance options with less strict requirements.
The Federal Housing Administration (FHA) offers loans that can help homeowners refinance out of an ARM. These loans are designed to support first time homebuyers and people with limited income or poor credit. They often require a lower down payment and have more flexible credit standards.
FHA refinance programs include:
These programs can be lifesavers for those dealing with rising loan payments after an ARM reset. However, be aware that FHA loans require mortgage insurance premiums, which add to your monthly cost.
Learn more about how to Simplify Refinancing with FHA Streamline Options
When buying a home, your down payment plays a key role in your long-term costs. A larger down payment reduces your loan amount, which can help lower your monthly payments, even with an adjustable rate mortgage.
If you’re buying with a low down payment—such as through an FHA loan—you may be more vulnerable to future rate increases, especially if you’ve borrowed close to the maximum loan amount allowed under your loan program.
Putting down at least 20% of the home’s value can also help you avoid private mortgage insurance (PMI), further reducing your costs.
Learn more about the Down Payment on Your First Home
Living in high cost areas adds another layer of risk when your ARM resets. Home prices and loan amounts tend to be higher, which means even a modest increase in your interest rate could raise your payments by hundreds of dollars.
If you’re already stretching your budget to make monthly payments, a reset could push you into unaffordable territory. It’s vital to work with your lender—or a housing counselor—to consider options like:
For first time homebuyers, ARMs can seem like the best way to get a foot in the door. But it’s critical to know that the low initial rate is temporary. You should always plan for what happens when your rate changes.
Questions to ask:
It’s okay to choose an ARM—just make sure it fits your long-term goals. If you’re unsure, a fixed rate mortgage may offer more peace of mind.
Sometimes, no matter how well you prepare, a reset leads to loan payments that are simply unaffordable. Here are some options to consider:
And always contact a housing counselor if you’re struggling. Credit.org or any other HUD-Certified counselor can provide free, unbiased guidance.
Unlike loans with a fixed rate, where the interest rate stays the same for the entire life of the loan, adjustable rate mortgages are structured to change periodically based on outside influences. Understanding how your ARM rate is calculated can help you anticipate adjustments and manage your finances more confidently.
So if your index is 4%, and your margin is 2.5%, your adjustable rate becomes 6.5% when your loan resets—unless a rate cap applies.
We’re in a housing market where rate increases have become more common. In the last year alone, the Federal Reserve has raised interest rates several times in response to inflation and broader economic concerns. For ARM loans, this directly impacts your monthly payments when the rate resets.
Borrowers with older loans might see their rates increase from 3% to 6% or higher, which can translate into hundreds of dollars more per month.
To cope with this:
To stay informed, check trusted sources like Bankrate, Freddie Mac, or the Federal Reserve. These sites update daily and help you compare mortgage rates, prime rate movements, and broader market conditions that may affect your loan payments or upcoming rate increases.
It’s easy to feel helpless when your loan payments are about to go up, but borrowers have more power than they think. Here are a few proactive steps you can take:
Your lender is required to notify you at least 60 days in advance of your adjustment. Don’t wait—start planning at least six months ahead.
Some lenders offer tools like:
But use these with caution. Reducing your monthly payments now may mean higher costs later.
Keep your credit score strong, pay off debts, and monitor market rates. When conditions improve, be ready to refinance into a fixed rate or a new ARM with better terms.
If you took out a large loan with a minimal down payment, it might be worth reassessing your current needs. Could you downsize, pay off other debt, or adjust your expenses to stay financially stable?
Some borrowers can’t handle the rate increases that follow an ARM reset. If that’s you, don’t ignore the problem. There are programs designed to help homeowners stay in their homes or exit their mortgage responsibly.
Being proactive is your best defense. If you act early, you’ll have more tools at your disposal to prevent foreclosure and protect your credit.
Not necessarily. Despite the risks, ARM loans still have their place in the mortgage landscape, especially for:
The key is education and planning. Know what you’re signing up for, run the numbers, and don’t rely on luck when your interest rate resets.
While this article focuses on adjustable rate mortgages, there’s another kind of loan that also experiences rate increases after a set period—Home Equity Lines of Credit (HELOCs). Like ARMs, HELOCs begin with a low introductory period that may include interest-only payments. But once the draw period ends, you enter a repayment phase where loan payments can increase substantially.
This type of rate reset often catches borrowers off guard. Unlike a mortgage, HELOC repayment periods are shorter—typically 10 to 15 years—meaning your monthly payments might jump quickly as the loan amount begins to amortize. If you’ve only been paying the interest during the draw period, the jump in payment options after the reset can be dramatic.
Borrowers with HELOCs should prepare in much the same way as ARM holders:
If you’re struggling with a HELOC reset or want to prepare ahead of time, learn more here:
An ARM reset doesn’t have to spell financial disaster. By understanding your loan terms, tracking market conditions, exploring refinance options, and planning for changes, you can protect your home and your wallet.
And if you’re unsure of what steps to take next, don’t wait. Talk to a housing counselor or financial advisor. At Credit.org, we offer free tools and support to help you stay ahead of any changes and make the smartest decision for your future.