With mortgage affordability still challenging, more borrowers are exploring adjustable-rate mortgages. Here's what they are, why they're gaining attention, and what buyers should know before choosing one.
If you've been keeping an eye on mortgage rates lately, you already know how much they can influence the homebuying process.
Even a small difference in interest rates can make a noticeable difference in your monthly payment, especially when you're purchasing a home in Denver or the surrounding Colorado communities.
And lately, more borrowers have been exploring an option that doesn't always get as much attention as the traditional 30-year fixed mortgage: the adjustable-rate mortgage, commonly called an ARM.
According to the Mortgage Bankers Association, adjustable-rate mortgages accounted for 10.5% of mortgage applications in its October 21, 2026 weekly report.
That's roughly one in every ten applications!
So, why are more people considering ARMs? And could one make sense for your next home purchase?
Let's break it down.
First, What Exactly Is an Adjustable-Rate Mortgage?
An adjustable-rate mortgage is a home loan with an interest rate that can change over time.
Unlike a traditional fixed-rate mortgage, where your interest rate stays the same throughout the loan, many ARMs begin with a fixed introductory rate for a certain number of years.
After that introductory period ends, the interest rate adjusts according to the terms of the loan.
For example, a 5/6 ARM typically offers a fixed interest rate for the first five years. After those five years, the rate can adjust every six months.
A 7/6 ARM works similarly, except the initial fixed-rate period lasts seven years.
The important thing to understand is that your monthly principal and interest payment could increase or decrease once the adjustable period begins.
Why Are More Borrowers Considering ARMs?
The biggest reason is affordability.
When fixed mortgage rates are elevated, an ARM may offer a lower introductory interest rate.
That can translate into a lower initial monthly mortgage payment.
For buyers trying to balance their monthly expenses while purchasing a home, that difference can be meaningful.
The Mortgage Bankers Association reported in October that ARM rates were nearly a full percentage point lower than the average 30-year fixed mortgage rate.
Of course, not every lender or borrower will see the same difference.
But it helps explain why some buyers are taking a closer look at their financing options.
How Much Could a Lower Initial Rate Actually Save?
Let's look at a hypothetical example.
Imagine you're purchasing a home with a $500,000 mortgage.
Here are two possible financing scenarios:
Option A: 30-Year Fixed Mortgage
- Interest rate: 7.25%
- Monthly principal and interest: approximately $3,411
Option B: Adjustable-Rate Mortgage
- Initial interest rate: 6.25%
- Monthly principal and interest during the introductory period: approximately $3,079
That's a difference of approximately $332 per month during the ARM's initial fixed-rate period.
Over the first year, that would amount to nearly $4,000 in lower principal and interest payments.
That's certainly worth understanding!
However, this example is for illustration only. It assumes a 30-year amortization schedule and excludes property taxes, insurance, mortgage insurance, closing costs, and fees.
Most importantly, the ARM payment is not guaranteed to remain at that level once the introductory period ends.
The Catch: Your Rate Can Change
This is where buyers need to pay particularly close attention.
While an ARM may offer a lower initial payment, the interest rate can adjust after the fixed period ends.
Depending on market conditions and the loan's terms, your rate could increase.
And if your interest rate increases, your monthly payment could rise as well.
ARMs generally include interest-rate caps that limit how much the rate can change at certain times and over the life of the loan.
However, those caps don't mean your payment will remain affordable.
Before choosing an ARM, it's important to understand the highest possible payment under your loan terms and whether your budget could comfortably handle it.
What If You Plan to Sell or Refinance Before the Rate Adjusts?
Some buyers consider ARMs because they don't expect to keep the same mortgage for decades.
Maybe they're purchasing a starter home and anticipate moving in several years.
Perhaps they're relocating for work or expect their housing needs to change.
Others hope to refinance into a fixed-rate mortgage if interest rates eventually decrease.
These are all reasons someone might explore an ARM.
However, there's one important consideration: you shouldn't rely on being able to refinance or sell before your rate changes.
Future interest rates are unpredictable.
Home values can fluctuate, and your financial circumstances may change.
Refinancing also depends on qualification requirements and may involve additional closing costs.
An ARM should make sense based on your financial situation and the loan's actual terms, not just the hope that rates will be lower later.
Are Adjustable-Rate Mortgages Riskier Than Fixed-Rate Mortgages?
They involve a different kind of risk.
With a fixed-rate mortgage, your interest rate and scheduled principal and interest payment remain consistent throughout the loan.
That predictability can make long-term budgeting easier.
With an ARM, you may benefit from a lower introductory rate, but you also accept uncertainty about future payments.
Neither option is automatically the right choice for everyone.
The better option depends on your finances, how long you expect to keep the loan, your comfort with changing payments, and the specific offers available to you.
What Should Colorado Homebuyers Ask Their Lender?
If you're considering an ARM, I'd encourage you to ask your lender several important questions before making a decision.
How long does the introductory rate last?
Make sure you understand exactly when the first adjustment can occur.
How often can the rate change?
Some ARMs adjust every six months, while others follow different schedules.
What are the interest-rate caps?
Ask how much the rate can increase at the first adjustment, at later adjustments, and over the life of the loan.
What's the highest possible monthly payment?
This is one of the most important numbers to understand.
How does the total cost compare with a fixed-rate mortgage?
A lower introductory rate doesn't necessarily mean the ARM will be less expensive over the entire time you own the home.
What happens if refinancing isn't an option later?
Make sure you have a realistic plan that doesn't depend on future market conditions working in your favor.
A knowledgeable lender should be able to walk you through these scenarios and help you compare your options.
What Does This Mean for Denver's Housing Market?
For buyers in Denver, Arvada, Lakewood, Wheat Ridge, Highlands Ranch, and the surrounding communities, financing is an important part of determining what feels comfortable and affordable.
With home prices and borrowing costs both affecting purchasing decisions, it makes sense that buyers are exploring different mortgage products.
But I also believe it's important to look beyond the initial monthly payment.
The right home purchase should work for your lifestyle, your financial goals, and your long-term comfort.
An attractive introductory rate might help with short-term affordability, but understanding the bigger financial picture matters just as much.
So, Is an ARM Worth Considering?
The growing interest in adjustable-rate mortgages tells us something important: buyers are looking for ways to make homeownership work in today's market.
And that's understandable!
For some borrowers, an ARM may be worth considering alongside a traditional fixed-rate mortgage.
For others, the stability of a fixed rate may be the better fit.
What matters most is understanding the options, asking the right questions, and making a decision that feels financially comfortable for you.
If you're thinking about buying a home in Denver or the surrounding Colorado communities, I'd love to help you explore the local market and understand what opportunities are available.
I can also help connect you with knowledgeable lending professionals who can walk you through the financing side of your purchase.
Because finding the right home isn't just about getting the keys. It's about making a decision you'll feel good about long after moving day.
