Compare ARM vs fixed rate today 2026: FRED shows 30-year fixed at 6.71% while 5/1 ARMs start near 6.33%, giving buyers a clear cash-flow trade-off.
As of the most recent FRED release (September 3, 2026), the 30-year fixed mortgage rate sits at 6.71%, the 15-year fixed at 6.04%, and the 10-year Treasury yield at 4.77%, producing a 1.94-percentage-point spread. These benchmarks frame the decision between fixed-rate stability and adjustable-rate savings.
A fixed-rate mortgage locks the interest rate for the entire term, so principal-and-interest payments never change. In contrast, an ARM begins with a lower introductory rate that resets periodically after the fixed period ends. The 5/1 ARM, for example, carries a fixed rate for five years and then adjusts annually.
Bankrate’s September 3 snapshot illustrates the gap:
| Product | Interest Rate | APR |
|---|---|---|
| 5/1 ARM | 6.33% | 6.23% |
| 7/1 ARM | 6.09% | 6.41% |
| 30-Year Fixed | 6.74% | 6.80% |
On a $350,000 loan, the 5/1 ARM saves roughly $110 per month versus the 30-year fixed during the initial five-year window—about $6,600 in cumulative cash-flow relief—provided rates do not rise sharply after year five.
Borrowers who expect to sell or refinance within the introductory window can capture the lower rate without exposure to later resets. Markets such as Austin, Texas, and Raleigh, North Carolina, continue to show elevated listing inventories, shortening average days-on-market and supporting the five-to-seven-year ownership horizon that aligns with typical ARM fixed periods.
Households planning to stay beyond seven years, or those on fixed incomes, benefit from payment certainty. Locking in the current 6.71% 30-year fixed rate eliminates the risk of future index-driven increases tied to SOFR or the Treasury yield curve.
Caps on most ARMs limit the first adjustment to 2 percentage points and lifetime adjustments to 5 points above the start rate. Even so, a 300-basis-point rise after year five would push the 6.33% 5/1 ARM above 9%, erasing earlier savings. HomeRates.ai allows users to run live scenarios that stress-test these caps against forward rate curves.
If you plan to move or refinance within five years, the 5/1 ARM at 6.33% offers measurable monthly savings. If your timeline exceeds seven years or you prioritize payment certainty, the 6.71% 30-year fixed rate remains the lower-risk choice in today’s 2026 market.
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