In Maryland right now (May 2026), a 5/1 ARM is priced around 6.24% while the 30-year fixed sits near 6.49% — a spread of about 0.25%. On an $800,000 loan, that saves you roughly $120 a month for the first five years. The 7/1 ARM is actually priced higher than the 30-year fixed right now, so the only ARM with a real rate advantage is the 5/1. Whether it’s worth it depends on your timeline — and in Bethesda, where most buyers are borrowing $700K–$1.5M, these numbers deserve a careful look before you decide.
Should Bethesda buyers choose an ARM or a fixed-rate mortgage in 2026?
In May 2026, Maryland’s 5/1 ARM is priced about 0.25% below the 30-year fixed rate — saving roughly $120–$160 per month on a typical Bethesda loan amount. An ARM makes sense for buyers who plan to sell or refinance within five years. For buyers staying long-term, the 30-year fixed offers payment certainty at a rate premium that’s significantly smaller than historical norms, making the ARM’s benefit harder to justify. Note: the 7/1 ARM is currently priced above the 30-year fixed, so it offers no rate advantage at all in today’s market.
By Pey Behin | May 21, 2026
The rate gap between a 5/1 ARM and a 30-year fixed in Maryland right now is about a quarter of a point. That’s not nothing — but it’s also not the 1.5–2% historic spread that once made adjustable-rate mortgages an obvious choice for short-term buyers.
In Bethesda, where the typical purchase price runs from $700,000 to well above $1.5 million, even a quarter-point spread moves your monthly payment by $100 to $350 depending on your loan size. That’s real money over five years. But whether an ARM is actually the right call depends on something the rate sheet can’t tell you: how long you’re planning to stay, and how comfortable you are with a payment that could change at year five.
What the rates actually look like right now
In Maryland, as of May 2026, here’s roughly where the major mortgage products are priced:
- 30-year fixed: ~6.49%
- 15-year fixed: ~6.00%
- 5/1 ARM: ~6.24%
- 7/1 ARM: ~6.63%
That last number might surprise you. The 7/1 ARM — which gives you seven years of a fixed rate before the first adjustment — is currently priced higher than the 30-year fixed. That reflects what’s happening in the bond market: medium-term yields are pricing in rate uncertainty beyond the five-year window, which means lenders are charging more for the extended initial period.
The practical consequence: if you’re considering an ARM today, the only product with a genuine rate advantage is the 5/1. The 7/1 gives you two extra years of payment certainty but costs you more to start. In the current environment, there’s no rate-based reason to choose it over the 30-year fixed.
These are benchmark figures for comparison. Rates are live market data and shift daily — your lender’s actual quotes will vary based on your credit score, loan size, and property type.
What the numbers look like on a Bethesda purchase
Let’s put these rates on actual loan amounts common in this market.
$1,200,000 purchase, 20% down → $960,000 loan:
| Product | Rate | Monthly P&I |
|---|---|---|
| 30-year fixed | 6.49% | $6,062 |
| 5/1 ARM | 6.24% | $5,906 |
| Monthly savings (ARM) | ~$156/month | |
| 5-year total savings | ~$9,360 |
$900,000 purchase, 20% down → $720,000 loan:
| Product | Rate | Monthly P&I |
|---|---|---|
| 30-year fixed | 6.49% | $4,547 |
| 5/1 ARM | 6.24% | $4,429 |
| Monthly savings (ARM) | ~$118/month | |
| 5-year total savings | ~$7,080 |
The savings are real, but they’re not dramatic. And they assume your rate holds steady — which is precisely the assumption you can’t make after year five with an ARM.
How an ARM actually works — the part most buyers underestimate
A 5/1 ARM gives you a fixed interest rate for the first five years. At the five-year mark, the rate adjusts once per year based on a benchmark index — most commonly SOFR (the Secured Overnight Financing Rate) — plus a margin set in your loan documents at closing.
Almost every ARM today has a cap structure. The standard is 2/2/5: the rate can go up a maximum of 2% at the first adjustment, 2% per year at each subsequent adjustment, and 5% total above your starting rate over the life of the loan.
On a 6.24% ARM, that means your rate could reach 8.24% at year five — and could theoretically hit 11.24% at the maximum cap over the life of the loan. At 8.24% on a $960,000 remaining balance, your monthly payment would jump to roughly $7,230 — about $1,170 more than you’d be paying on the 30-year fixed today. That’s the risk you’re accepting in exchange for the $156/month initial savings.
This doesn’t make an ARM a bad product. It means you need to understand the math clearly before you choose it.
When an ARM makes sense for Bethesda buyers
There are three buyer profiles where the adjustable rate genuinely works in this market.
You have a defined exit within five years. The most natural ARM buyer in Bethesda is the federal employee, government contractor, or professional who knows their role, assignment, or work situation will likely change within five years. If you’re confident you’ll sell before the first rate adjustment, you’re capturing the monthly savings with almost no exposure to the rate-change risk. This buyer type is common across Chevy Chase, Bethesda, and North Bethesda.
You’re maximizing your purchasing power now and plan to refinance. On a higher-priced Bethesda home, the ARM’s lower initial payment can make the debt-to-income ratio work when a fixed-rate payment wouldn’t clear the qualification threshold. If your income is growing and you have a clear plan to refinance within five years, this is a calculated approach — not a reckless one. The key word is “plan.” Have that conversation with your lender before you assume it’ll work.
You have a conviction that rates are heading meaningfully lower. If you believe rates will drop 1–1.5% within the next three to four years, an ARM lets you ride that down without the transaction costs of selling. You’d refinance into a lower fixed rate before your first adjustment. That said, rate forecasting is notoriously unreliable, and this strategy requires both the market and your financial situation to cooperate at the same time.
When the fixed rate is the smarter call
For most Bethesda buyers, the 30-year fixed is still the right product. The reasons are straightforward.
The spread is unusually narrow. Historically, ARM rates ran 1.5 to 2 percentage points below 30-year fixed rates. The current 0.25% gap means you’re taking on real payment uncertainty for comparatively modest savings. The math only pays off if you actually exit the home — or refinance — before year five, reliably.
You’re buying a home you plan to keep. A lot of people buying in Bethesda, Potomac, and Chevy Chase are making a long-term commitment — to a neighborhood, a school proximity, an established community. If that’s your situation, the fixed rate removes one major financial variable from what’s already a significant and deeply personal decision.
Jumbo loans complicate ARM qualification. Bethesda’s price range means many buyers need a jumbo loan — above the 2026 Montgomery County conforming limit of $1,209,750. Jumbo ARM programs often carry tighter reserve requirements, stricter debt-to-income standards, and fewer lender options than conforming ARM products. You may find the ARM you want doesn’t qualify at the loan size you actually need.
The mortgage points comparison — worth running before you decide
Before choosing the ARM, compare it against paying mortgage points to buy down your fixed rate. One point (1% of the loan) typically buys 0.25% off your rate. On a $960,000 loan, that’s $9,600 upfront to drop your 30-year fixed from 6.49% to 6.24% — matching the ARM’s rate, with no adjustment exposure after year five.
The break-even on one point at this loan size is roughly five years. After that, you’re ahead on a fixed rate forever. The ARM’s savings advantage disappears at exactly the same moment the rate could move against you.
That comparison deserves a full calculation from your lender. And if you’re still deciding between 15-year and 30-year fixed products, that comparison has its own math worth running through for long-term Bethesda buyers.
Before any of this, make sure you have a clear picture of your full upfront costs. Buyer closing costs in Bethesda are often the bigger financial surprise — and they affect how much cash you have for a points buydown or reserves.
Frequently Asked Questions
What is a 5/1 ARM and how does it work?
A 5/1 ARM is an adjustable-rate mortgage with a fixed interest rate for the first five years, after which the rate adjusts once per year based on a benchmark index (typically SOFR) plus a lender margin. Most 5/1 ARMs today carry a 2/2/5 cap structure, meaning the rate can rise no more than 2% at the first adjustment, 2% per year after that, and 5% total over the life of the loan from the starting rate.
Is a 5/1 ARM a good idea for Bethesda buyers right now?
It depends on your timeline. The spread between a 5/1 ARM and a 30-year fixed in Maryland is about 0.25% in May 2026 — narrower than the historical norm of 1.5–2%. If you plan to sell or refinance within five years, the ARM’s monthly savings are real but modest (roughly $120–$160/month on a typical Bethesda loan). If you’re staying longer, the fixed rate eliminates adjustment risk for a relatively small premium.
What is an ARM cap structure, and how does it protect borrowers?
An ARM cap structure limits how much your interest rate can increase. The most common structure today is 2/2/5: the rate can rise a maximum of 2% at the first adjustment, 2% at each subsequent annual adjustment, and 5% total above your starting rate over the life of the loan. On a 6.24% ARM, your rate could never exceed 11.24% — though your specific lender’s cap terms may differ.
Can I refinance out of an ARM before the rate adjusts?
Yes — refinancing before the first ARM adjustment is a common strategy. You’ll need to qualify for the new loan, pay closing costs (typically 2–3% of the loan amount in Maryland), and have sufficient equity. For the refinance to make financial sense, rates generally need to drop 0.75–1.0% below your current rate to offset transaction costs.
Are ARM loans available on jumbo mortgages in Bethesda?
Yes, ARM products are available on jumbo loans, but lender selection and qualification criteria may be narrower than for conforming products. In Montgomery County, the 2026 conforming loan limit is $1,209,750. For purchases above that threshold, ask specifically about jumbo ARM availability and your lender’s reserve and debt-to-income requirements for adjustable-rate products.
The ARM vs. fixed decision comes down to one question: how confident are you about your five-year plan? In the current rate environment, the ARM’s advantage is modest enough that a wrong assumption about your timeline leaves you with real exposure for limited upside.
If you’re working through this for your own purchase in Bethesda or Montgomery County, I’m happy to run through the numbers with you — including how your specific loan size, down payment, and timeline change the math. Reach out anytime.
About Pey Behin
Pey Behin is a residential real estate agent serving the Washington, DC metro area, with a focus on Bethesda, Montgomery County, and Northern Virginia. He works with buyers and sellers who want clear strategy, data-driven pricing, and direct guidance throughout the transaction process. His approach combines market analytics, negotiation expertise, and modern marketing to position clients effectively in competitive conditions.
