ARM Rates 2026: Adjustable-Rate Mortgage Rates — 5/1, 7/1 & 10/1 ARMs Compared

Adjustable-rate mortgages (ARMs) offer lower initial rates than fixed-rate mortgages in exchange for rate uncertainty after the initial fixed period. In July 2026, ARM rates range from 6.0%–6.6% depending on the term (5/1, 7/1, or 10/1), compared to 6.7%–6.9% for a 30-year fixed — a discount of 0.3–0.9 percentage points that can save $100–$200/month on a typical loan during the fixed period.

Current ARM Rates — July 2026

ARM Rates vs Fixed Rates (Updated Monthly)

Rates are approximate averages as of July 2026. Your actual rate depends on credit score, down payment, and lender.

Key insight: The 5/1 ARM saves $182/month vs the 30-year fixed — $10,920 over 5 years. The 10/1 ARM saves $111/month — $13,320 over 10 years.

How Adjustable-Rate Mortgages Work

An ARM has two distinct phases:

Phase 1: Fixed-Rate Period (5, 7, or 10 Years)

Your rate and payment are locked. This functions exactly like a fixed-rate mortgage — you have complete payment certainty during this period.

Phase 2: Adjustable Period (Starts Year 6, 8, or 11)

The rate adjusts annually (or semi-annually for /6 ARMs) based on:

New Rate = Index + Margin

• Index: Usually SOFR (Secured Overnight Financing Rate), the market benchmark that replaced LIBOR
• Margin: A fixed percentage your lender adds, typically 2.5%–3.0%
• Caps: Limits on how much the rate can change

ARM Rate Caps — Critical Protection

Rate caps are your protection against runaway rate increases. The cap structure is written as three numbers: 2/2/5 or 5/1/5.

Example with 2/2/5 caps on a 5/1 ARM starting at 6.0%:

Example with 5/1/5 caps (less common):

Always ask your lender for the cap structure before signing — this is disclosed on the Loan Estimate.

5/1 ARM vs 7/1 ARM vs 10/1 ARM — Which to Choose?

Why the APR is higher: APR accounts for the fact that after the fixed period, your rate will likely increase. The longer the fixed period, the lower the APR (because you have more years of certainty).

5/1 ARM vs 5/6 ARM: What’s the Difference?

The 5/1 ARM adjusts once per year after year 5.
The 5/6 ARM adjusts every 6 months after year 5.

Which is better? The 5/6 ARM has a slightly lower start rate but adjusts twice as often, creating more payment volatility. Most borrowers prefer the 5/1 for simplicity.

ARM Payment Scenarios — Real Examples

Scenario 1: Sell Before Adjustment (Best Case)

Loan: $400,000 5/1 ARM at 6.0%
Monthly P&I: $2,398
Action: Sell the home in year 5
Outcome: You captured all the savings ($11,880 over 5 years) with zero rate risk.

Scenario 2: Refinance Before Adjustment

Loan: $400,000 7/1 ARM at 6.25%
Action: Refinance in year 7 when rates drop to 5.5%
Remaining balance: ~$367,000
New payment at 5.5%: $2,084/month
Outcome: You saved money during the ARM, then locked in a low fixed rate.

Scenario 3: Rate Rises at Adjustment (Worst Case)

Loan: $400,000 5/1 ARM at 6.0% (2/2/5 caps)
Action: Hold the loan through adjustment
Year 6: Rate rises to 8.0% (2% first cap)
Remaining balance: ~$383,000
New payment: $2,935/month (+$537)
Outcome: Payment increased significantly. You saved $11,880 over 5 years but now pay an extra $6,444/year.

Scenario 4: Aggressive Paydown Strategy

Loan: $400,000 10/1 ARM at 6.4%
Action: Pay extra $1,000/month toward principal
Remaining balance after 10 years: ~$175,000 (vs $333,000 with minimum payments)
Outcome: When the rate adjusts, you have a much smaller balance — reducing payment volatility.

When an ARM Makes Sense

✅ Good Candidates for ARMs

❌ When to Choose Fixed Instead

How ARM Rates Are Calculated After Adjustment

After the fixed period, your new rate is determined by:

Rate = SOFR Index + Lender Margin

Example Calculation (5/1 ARM Adjusting in July 2026)

In this example, the rate would rise from 6.0% to 7.05% — a 1.05% increase, within the 2% cap.

If SOFR were 6.0%:

The cap prevents the rate from jumping to 8.75% — it’s limited to 8.0%.

ARM Rates by Credit Score

Your credit score affects your initial ARM rate just like fixed-rate mortgages.

The ARM discount is fairly consistent across credit tiers — about 0.70–0.80 percentage points.

Should You Get an ARM in 2026?

The case for ARMs in 2026:

✅ Rates are elevated — 30-year fixed rates around 6.7%–6.9% are well above the 2020–2021 lows of 2.65%–3.5%. If rates normalize to 5%–6% over the next few years, you could refinance before adjustment.

✅ Meaningful savings — A 5/1 ARM at 6.0% vs a 30-year fixed at 6.8% saves $182/month on a $400K loan — $10,920 over 5 years.

✅ Homeownership timelines are shorter — The median homeowner sells in 8–10 years. If you’re likely to move within the ARM fixed period, you avoid rate risk entirely.

The case against ARMs:

❌ Rate risk — If rates stay elevated or rise further, your payment could increase significantly at adjustment.

❌ Uncertain economic outlook — Inflation could stay stubborn, keeping rates high.

❌ Refinance costs — If you plan to refinance before adjustment, closing costs (2%–3% of loan) eat into your savings.

ARM Qualification: What Lenders Look For

Lenders typically qualify ARMs using one of two methods:

1. Qualify at the initial rate (most common) — Your debt-to-income ratio is calculated using the ARM start rate (e.g., 6.0%).

2. Qualify at the fully indexed rate — Some lenders use the index + margin rate to ensure you can afford a higher payment. Ask your lender which method they use.

DTI limits:

• Conventional ARMs: 43%–50% DTI
• FHA ARMs: 43% DTI (with compensating factors up to 50%)
• Jumbo ARMs: 36%–43% DTI

ARM vs Fixed Rate: Side-by-Side Comparison

ARMs for Different Loan Amounts

ARM Savings Scale with Loan Size

Takeaway: ARMs make more sense on larger loans where the absolute dollar savings are significant.

ARM Refinancing: Your Options Before Adjustment

If you have an ARM approaching adjustment, you have three options:

1. Refinance to a Fixed Rate

Lock in certainty. Makes sense if fixed rates are at or below your current ARM rate.

2. Refinance to a New ARM

Reset the clock with a new 5/7/10-year fixed period. Only worth it if the new ARM rate is meaningfully lower.

3. Ride It Out

If rates have fallen and your ARM adjusts downward, or if your balance is low enough that payment changes are manageable, staying put may be best.

Use the refinance calculator to model scenarios and break-even timelines.

Related Mortgage Rate Guides

• Mortgage Rate History — Historical rates from 1971–2026
• Fixed vs Variable Rate Mortgage — ARM vs fixed decision framework
• 30-Year Mortgage Rates — Current 30-year fixed rates
• 20-Year Mortgage Rates — Middle-ground fixed-rate option
• Refinance Rates — Current refi rates by term

For broader context on mortgage types and when each makes sense, see the Mortgage Loan Types hub.

Frequently Asked Questions (Extended)

Can I pay off an ARM early?

Yes. ARMs typically do not have prepayment penalties (but verify with your lender). Paying extra toward principal during the fixed period reduces your balance before adjustment, lowering future payment volatility.

What happens if I can’t afford the payment after adjustment?

You have three options: (1) Refinance to a new loan, (2) Sell the home, or (3) Request a loan modification from your lender. Contact your lender immediately if you anticipate trouble — waiting makes options worse.

Are ARM rates negotiable?

Yes. Like all mortgage rates, ARM rates are negotiable. Shop at least 3 lenders, compare Loan Estimates, and ask lenders to match or beat competing offers. A 0.25% rate reduction on a $400,000 loan saves ~$60/month.

Do ARMs have mortgage insurance?

Conventional ARMs require PMI if your down payment is less than 20%, just like fixed-rate loans. FHA ARMs require mortgage insurance premium (MIP) for the life of the loan. VA ARMs have no mortgage insurance.

Can I convert my ARM to a fixed-rate loan?

Some lenders offer ARM-to-fixed conversion options, but they are rare. The standard approach is to refinance into a new fixed-rate mortgage. Conversion clauses typically carry fees and may not offer competitive rates — refinancing is usually better.

Bottom line: ARMs offer meaningful savings for buyers with a clear exit strategy (sell or refinance) within the fixed period. In 2026’s elevated rate environment, a 5/1 or 7/1 ARM can save $10,000–$15,000 over the fixed period compared to a 30-year fixed — but only makes sense if you won’t keep the loan past the adjustment date or are confident rates will fall, allowing a favorable refinance.

Written by WealthVieu

WealthVieu researches and writes data-driven personal finance guides using primary sources including the IRS, Bureau of Labor Statistics, Federal Reserve, and Census Bureau.