The pricing gap is back, and it's bigger than usual
Walk into a physician-mortgage application in May 2026 and you'll be quoted two very different numbers. The 30-year fixed is sitting in the mid-6% to low-7% range — call it 6.5%–7.0% on a typical attending file. The 5/6 and 7/6 ARMs on the same physician program are coming in 0.50% to 1.00% below that. On a $500,000 loan, that gap is roughly $200 to $400 a month during the fixed period — $12,000 to $24,000 over five years.
That's not a rounding error. It's also not free money. The ARM discount is real because someone — you — is taking the rate-reset risk that the fixed-rate borrower paid a premium to avoid. The question isn't "is the discount real?" It is. The question is whether your specific life circumstances make that risk small or scary.
What you're actually buying with a physician ARM
A 5/6 ARM is fixed for 5 years, then adjusts every 6 months. A 7/6 ARM is fixed for 7. Most physician ARMs are indexed to the 30-day average SOFR with a margin around 3.50%, so at the first reset your new rate is roughly SOFR + 3.50%, subject to the cap structure.
The caps matter more than the headline discount. A 5/6 ARM typically carries 2/1/5 caps: up to 2 percentage points at the first reset, 1 point per reset after that, with a 5-point lifetime ceiling. The 7/6 and 10/6 ARMs usually have 5/1/5 caps — bigger initial jump allowed, but you've had longer to plan for it.
Translation: start at 5.75% on a 5/6 ARM and your rate can legally hit 7.75% on day one of the reset and 10.75% over the life of the loan. That's not a forecast. It's a contract term. Make peace with it before you sign.
The four questions that decide ARM vs. fixed
1. How confident are you that you'll move or refinance before the fixed period ends?
This is the question that really matters. A PGY-2 buying near a training program who'll be 1,500 miles away in 4 years gets exactly what the 5/6 ARM was built for. A 38-year-old attending in a partnership-track group in their hometown is probably staying past year 7, and the ARM math gets ugly fast.
2. Can your budget absorb the worst-case reset?
Don't model the ARM at the teaser rate. Model it at the lifetime cap. If a 5.75% start and a 10.75% lifetime cap produces a payment your household couldn't carry, you don't want this product — even if you're "pretty sure" you'll move. Pretty sure isn't a financial plan.
3. Are you stockpiling the monthly savings, or spending them?
The honest reason ARMs work for some doctors and not others has nothing to do with rates. If the $300/month delta goes into a brokerage account or extra principal, you come out ahead even if rates rise. If it drifts into lifestyle, the ARM was just a way to qualify for more house.
4. What's the breakeven if you stay through the reset?
Divide the upfront monthly savings by the likely additional monthly cost after reset, and you'll get a rough number of years past the reset where you're still ahead. If the math says you're underwater 18 months after reset and you have any chance of staying that long, the fixed rate wins.
A residency / fellowship / attending overlay
For residents and fellows with a known relocation horizon under 5 years, the 5/6 ARM is often the right call — assuming you can absorb the worst case if you stay an unexpected extra year.
For fellows with one foot out the door in 12–24 months, closing costs eat most of the benefit either way. Lean fixed and negotiate lender credits.
For attendings settling in long-term, the fixed rate is usually the right answer in spring 2026, even at the premium. Twenty-five years of payment certainty is worth real money when the alternative is a payment-shock conversation in your fifties.
For two-physician households who can comfortably carry the worst-case reset on one income, the ARM is more interesting — the discount is real, and the safety net is built in.
One spring 2026 wrinkle
The Repayment Assistance Plan (RAP) cutover hits federal student loans on July 1, with payments calculated as 1–10% of AGI rather than discretionary income. For attendings, that math runs higher than current PAYE/IBR for many borrowers, and lenders are starting to pre-underwrite both numbers to stress-test approval. If you're on the ARM/fixed fence and you're carrying significant federal student debt, ask your loan officer to run your DTI under both your current plan and the RAP-equivalent payment. The right product is the one that still works after July 1.
The bottom line
The 0.50%–1.00% ARM discount in spring 2026 is real, and for the right borrower it's meaningful money. But the right borrower is narrower than the marketing makes it sound: someone with a credible exit before the reset, a budget that survives the worst case, the discipline to bank the savings, and clear eyes about the cap structure. If that's you, run the ARM. If not, pay the premium and sleep at night — that's also a financial plan.
This article is for educational purposes only and is not financial, tax, or legal advice. Loan terms, rates, and program features vary by lender and change frequently.