Adjustable rate mortgages
An ARM can be smart — if the math fits your timeline.
An adjustable rate mortgage (ARM) offers a lower initial interest rate for a set fixed period, and then the rate adjusts periodically based on a market index. For borrowers with the right timeline, an ARM can lower the monthly payment significantly in the early years of the loan.
What is an ARM?
An adjustable rate mortgage starts with a fixed introductory rate for a set number of years — typically 5, 7, or 10. After that period, the rate adjusts on a schedule (usually every 6 months) based on a benchmark index (typically SOFR) plus a fixed margin.
A "5/6 ARM," for example, is fixed for 5 years and then adjusts every 6 months. "7/6" is 7 years fixed / adjusts every 6 months, and "10/6" is 10 years fixed / adjusts every 6 months.
Rate caps protect the borrower
ARMs include rate caps that limit how much the rate can move at each adjustment and over the life of the loan. A common cap structure is 2/1/5 or 5/1/5 — meaning the first adjustment cannot move more than 2 or 5 percentage points, subsequent adjustments cannot move more than 1 percentage point, and the total lifetime rate movement is capped at 5 percentage points above the initial rate.
Belong Lending walks every ARM borrower through the "worst case scenario" payment before you sign, so you know exactly what the payment could be at the maximum rate.
When does an ARM make sense?
ARMs generally work best for borrowers who plan to sell, refinance, or pay the home off before the fixed period ends. If you know you'll likely be gone within 5 or 7 years, the savings from the lower initial rate can be significant.
Key benefits
- Lower initial interest rate than a comparable fixed-rate loan
- Fixed introductory period of 5, 7, or 10 years
- Rate caps limit how far the payment can rise
- No prepayment penalty on most modern ARMs
Who this loan fits best
- Borrowers with a short-to-medium time horizon in the home
- Buyers expecting to refinance or sell within the fixed period
- Higher-income borrowers with cash flow to absorb potential adjustment
Estimate your monthly payment
ARM payment calculator
Estimate only. Actual rate, taxes, insurance, and mortgage insurance depend on your specific loan and property. Belong Lending confirms your exact payment at pre-approval.
Serving Detroit and surrounding Michigan communities
Belong Lending helps borrowers with ARM loans across Detroit, Troy, Southfield, Ann Arbor, Flint, Livonia, Warren, Sterling Heights, Farmington Hills, Novi, Rochester Hills, Dearborn, and beyond — plus additional coverage throughout Wayne County, Oakland County, Macomb County, Washtenaw County, Livingston County, Genesee County. We also lend on eligible properties in Ohio, Florida, Georgia, and Texas.
Frequently asked questions
What does 5/6 ARM mean?
A 5/6 ARM is a loan with an interest rate that is fixed for the first 5 years and then adjusts every 6 months based on a market index. The most common index today is the 30-Day Average SOFR.
How high can my ARM payment go?
ARM rates are capped at each adjustment and over the life of the loan. A common cap structure is 2/1/5 — meaning no more than 2% at the first adjustment, no more than 1% at each subsequent adjustment, and no more than 5% total above the starting rate over the life of the loan. Belong Lending walks you through the exact worst-case payment before you sign.
Is an ARM riskier than a fixed rate mortgage?
An ARM carries payment adjustment risk that a fixed rate mortgage does not. That risk is manageable when you plan to sell or refinance before the fixed period ends. If you expect to keep the loan long-term, a fixed rate is usually the safer choice.