Adjustable-Rate Mortgages aren't for everyone. But if you're planning to sell or refinance in 5–7 years, you could save tens of thousands in interest. Let's talk about whether an ARM is right for you.
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An ARM has three key components. Understanding each one helps you decide if it's right for your situation.
Your rate stays fixed for a set period (typically 3–10 years). This is where you get the biggest savings compared to a fixed-rate mortgage.
After the intro period, your rate adjusts annually based on market conditions. Your new rate = index + margin (set at origination).
Your rate can't rise above the cap. Most ARMs have a 5–6% lifetime cap, protecting you from runaway payments.
Let's say you're buying a $400,000 home with a 20% down payment ($80,000). Here's what you'd pay over 7 years with a 7/1 ARM vs a 30-year fixed.
7/1 ARM at 5.5% (intro)
$2,028/month
First 7 years
30-Year Fixed at 6.5%
$2,560/month
All 30 years
7-Year Savings: ~$44,800
*Assumes no rate adjustment during intro period. Actual rates vary by market and credit profile.
| Feature | ARM | Fixed |
|---|---|---|
| Intro Rate | Lower | Higher |
| Payment Stability | Changes after intro | Fixed 30 years |
| Best For | Short-term owners | Long-term owners |
| Feature | ARM (7/1) | Fixed (30-Year) |
|---|---|---|
| Interest Rate (Intro) | 5.5% | 6.5% |
| Monthly Payment (Years 1–7) | $2,028 | $2,560 |
| Payment After Intro | Adjusts annually | No change |
| Rate Cap | 5–6% lifetime | N/A |
| Best For | Selling/refi in 5–7 yrs | Staying 30+ years |
Rates and terms are illustrative. Actual rates depend on credit, loan amount, and market conditions. Speak with Duane for a personalized quote.
Borrowers planning to sell or refinance within 5–7 years. If you're staying in the home for 30 years, a fixed-rate is safer.
Your rate adjusts annually based on the index (e.g., SOFR) plus your margin. Your payment may increase, but it's capped by your lifetime cap.
Most ARMs have a 5–6% lifetime cap. So if your intro rate is 5.5%, your maximum rate is around 10.5–11.5%, protecting you from extreme increases.
Yes. Many borrowers refinance to a fixed-rate before the adjustment period begins, locking in a lower rate and avoiding future increases.
The index (e.g., SOFR) is a market rate that changes. Your margin is set at origination and never changes. Your new rate = index + margin.
Most modern ARMs have no prepayment penalties, so you can refinance or pay off early without fees. We'll confirm this in your loan estimate.
Schedule a consultation with Duane. We'll review your timeline, credit, and financial goals to determine if an ARM saves you money.
The CFPB ARM guide is a great resource. We also offer free consultations to answer your specific questions.
Get a personalized rate quote and see how much you could save with an ARM. No obligation, no credit pull required.