Your Guide to an Adjustable-Rate Mortgage in Grand Rapids, MI
An adjustable-rate mortgage (ARM) starts with a lower fixed interest rate for a set period — commonly five, seven, or ten years — and then adjusts periodically with the market, within caps written into the loan. The naming tells you the structure: a 5/1 ARM is fixed for five years and adjusts annually after; a 5/6 ARM adjusts every six months. The right question is not “will rates rise?” but “will I still hold this loan when the fixed period ends?”
What are the basics of an adjustable-rate mortgage?
Unlike a 30-year or 15-year fixed-rate mortgage, an ARM trades long-term certainty for a lower initial rate. The common structures:
- 3/1 ARM: Fixed for three years, adjusting annually thereafter.
- 5/1 ARM: Fixed for five years, adjusting annually.
- 7/1 ARM: Fixed for seven years, adjusting annually.
- 10/1 ARM: Fixed for ten years, adjusting annually.
We also offer newer structures like the 5/6 ARM and 7/6 ARM, where the rate adjusts every six months instead of annually once the fixed period ends. Which structure fits depends almost entirely on how long you plan to keep the home — and our team gives honest second opinions on ARM quotes every week.
How do caps and floors protect your rate?
The biggest fear buyers have about ARMs is skyrocketing payments. ARMs come with built-in protections that bound exactly how far the rate can move:
- Initial cap: Limits how much the rate can increase the very first time it adjusts.
- Periodic cap: Restricts the increase during any single subsequent adjustment period.
- Lifetime cap: The absolute maximum rate you can be charged over the entire term.
- Floor: The lowest rate the mortgage can drop to, regardless of market conditions.
Understanding these limits matters most on larger balances — on a jumbo mortgage, small rate changes move the payment meaningfully. And if your fixed period is ending soon and you want stability, a rate and term refinance into a fixed rate is the standard exit.
| ARM type | Fixed rate period | Adjustment frequency | Best for |
|---|---|---|---|
| 3/1 ARM | 3 years | Every 1 year | Short term homeowners |
| 5/1 ARM | 5 years | Every 1 year | Medium term planners |
| 5/6 ARM | 5 years | Every 6 months | Medium term planners |
| 7/1 ARM | 7 years | Every 1 year | Longer term stability |
| 10/1 ARM | 10 years | Every 1 year | Maximum initial stability |
Why run your ARM decision through our team?
Navigating Grand Rapids real estate takes a local expert who understands both the community and the fine print of loan structures. Whether you are a first-time homebuyer or an investor expanding a portfolio, an ARM can deliver real short-term savings — when the timeline genuinely fits.
Bring us your 5/1, 7/1, or 10/1 ARM quote and we will lay out the caps, the fully-adjusted worst case, and the honest comparison against a fixed rate, so the structure you sign is the one that serves your plans.
Frequently asked questions
What is an adjustable rate mortgage?
A home loan that starts with a fixed interest rate for a set number of years, after which the rate adjusts periodically based on a benchmark index plus a fixed margin.
How does a 5/1 ARM work?
A 5/1 ARM keeps your rate fixed for the first five years. After that, the rate adjusts once every year based on current market conditions, within the loan’s caps.
What is the difference between a 7/1 ARM and a 7/6 ARM?
Both are fixed for the first seven years. After that, a 7/1 ARM adjusts once a year while a 7/6 ARM adjusts every six months.
Are there limits to how high my ARM rate can go?
Yes. Caps limit how much the rate can rise at the first adjustment, at each later adjustment, and over the life of the loan — ask for all three numbers before you sign.
Should I refinance before my adjustable rate mortgage resets?
Many homeowners refinance into a fixed rate or a new ARM before the fixed period ends. Our team can run the numbers and tell you whether that move pays. Get your free ARM second opinion.