ARMs Are Back — and They're Not the Villain
Adjustable-rate mortgages got a bad reputation during the 2008 financial crisis, and for good reason — back then, they were being handed out with no documentation, teaser rates, and no caps on adjustment. The ARMs available today are fundamentally different products.
With 30-year fixed rates hovering above 6.25%, we're seeing a significant uptick in ARM applications — especially among jumbo loan borrowers in Colorado's mountain markets. Here's the honest breakdown of when they make sense and when they don't.
The Math: Fixed vs. ARM Right Now
Let's use a $1,000,000 purchase with 20% down ($800,000 loan) as an example, since that's a typical Vail or Boulder transaction:
- 30-year fixed at 6.375%: $4,993/month principal & interest
- 7/1 ARM at 5.50%: $4,542/month principal & interest
- Monthly savings: $451
- 7-year savings: $37,884
That $37,884 isn't theoretical money — it's cash flow you can put toward principal paydown, renovations, or investments while you wait for an opportunity to refinance into a lower fixed rate.
When an ARM Makes Sense
1. You Plan to Sell Within 5-7 Years
If you're buying a home you'll likely sell before the fixed period ends — common with vacation properties, corporate relocations, or growing families who'll upgrade — you'll pocket the savings without ever facing an adjustment.
2. You Expect to Refinance When Rates Drop
If rates fall to the 5% range within the next 2-3 years (a reasonable forecast), you'll refinance into a lower fixed rate and the ARM was just a cheaper bridge to get there.
3. You Have a Large Loan Amount
The savings scale with loan size. On a $500,000 loan, the monthly savings might be $225. On a $1.5M jumbo loan, it's closer to $675/month. For high-value Aspen or Telluride properties, the ARM savings are substantial.
4. You Have Strong Financial Reserves
If you have significant savings and high income, the adjustment risk is manageable. You can absorb a payment increase if rates don't fall as expected.
When to Stick With Fixed
- This is your forever home — if you're planning to stay 15-30 years, the certainty of a fixed rate outweighs the short-term savings
- You're stretching to qualify — if the ARM rate is the only way you can afford the payment, that's a red flag
- Rate increases would cause financial stress — if a $500/month payment increase would strain your budget, fixed is safer
Today's ARM Safeguards
Modern ARMs have built-in protections that didn't exist pre-2008:
- Initial cap: Maximum 2% increase at first adjustment
- Annual cap: Maximum 1-2% increase per year after that
- Lifetime cap: Maximum 5-6% increase over the life of the loan
- Full documentation: You must fully qualify at a stress-tested rate
On that $800,000 loan, even a worst-case scenario (full lifetime cap) would still leave you at a manageable payment — and in practice, rates would need to rise significantly from here for that scenario to play out.
The Strategy We Recommend
For many of our Colorado mountain property buyers, we recommend what we call the "ARM and refinance" strategy: take the 7/1 ARM today, invest the monthly savings, and refinance into a fixed rate when the market gives you a better number. It requires discipline and planning, but the math is compelling.
Want to see the numbers for your specific situation? Connect with Cedar Home Loans and we'll run a side-by-side comparison of fixed vs. ARM for your target property and timeline. Call (303) 549-5277.


