Best 3/1 ARM Mortgage Rates October 2026 | As Low As 4.99%
Brian McKay
Brian McKay
Founder & Data Architect- Automated Online Rate Data Aggregation
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3/1 ARM mortgage rates range from 4.99% to 8.25%, verified by MonitorBankRates as of October 15, 2026. Today's 3/1 ARM mortgage market includes offers such as Evergreen Credit UnionEvergreen Credit Union133 N Richmond St, Appleton, WI 54911 4635A+5.0 ★Texas Ratio: 5.16% offering Primary Home-First Mortgage - 3 Year ARM at 4.99%, and Alabama Credit UnionAlabama Credit Union1 Mercedes Dr, Birmingham, AL 32507 8703A+5.0 ★Texas Ratio: 5.72% offering 3/1 ARM, First Mortgage at 5.00%, and Fox Valley Savings BankFox Valley Savings Bank101 S Madison St, Fond Du Lac, WI 53963A+5.0 ★Texas Ratio: 1.60% offering 3/1 Adjustable-Rate Mortgage at 5.25%, and Investment Savings BankInvestment Savings Bank200 Patchway Rd, Altoona, PA 16602A+5.0 ★Texas Ratio: 0.27% offering Adjustable Rate Mortgage Loan (ARM) - 3/1 ARM at 5.00%, and Fond Du Lac Credit UnionFond Du Lac Credit Union91 N Pioneer Rd, Fond du Lac, WI 54935A+5.0 ★Texas Ratio: 1.35% offering First Mortgage - 3/1 Year ARM at 5.25%.
A 3/1 ARM offers a fixed interest rate for the first 3 years, then adjusts annually based on a market index. It typically carries a lower initial rate than 30-year fixed mortgages, making it well suited for borrowers who plan to sell or refinance before the adjustment period begins.
3/1 ARM rates reflect the initial fixed-rate period. Your rate will adjust after 3 years based on market conditions. Last Updated and Verified: October 15, 2026
Compare 3/1 ARM Mortgage Rates Today
As Low As; ARM structure 3/1; Rates subject to increase or decrease after the Initial Fixed Period; Loans over $832,750 may be subject to different rates; Borrower must qualify for Credit Union membership; Qualifying properties must be within Credit Union charter
APR includes $399 in origination costs; estimated closing costs of $800 may be financed; proof of property insurance required prior to closing; APR based on <=80% loan to value; rates effective 09/24/2026
Loan to Value %: 80%
Adjustable rate; rates effective as of August 26th, 2026
As Low As; Mortgage Rates; Home Mortgage
As Low As; APR is based on a loan to value less than 80%. Terms up to 30 years on loans greater than $50,000. For lowest rates, checking with direct deposit and automatic payments required. Rates effective 09/24/2026.
As Low As; APR is based on <= 80% loan to value; first mortgage rates available for 80.01 - 90% loan to value; estimated closing costs of $800 may be financed; Cost Per $1000: Call for Details; rates effective 09/24/2026
As Low As
- Sep 29, 20265.50%▲ from 5.00%
- Sep 14, 20265.00%first recorded
Interest rate fixed for the first 3 years and may adjust annually thereafter; APR based on $75,000 loan amount
ARM; First Mortgage ARMs amortized over up to 30 years
Adjustable Rate Mortgage (ARM); Conventional Loan Limits Apply; Initial rate period: 36 months
- Oct 1, 20265.93%▲ from 5.88%
- Sep 14, 20265.88%first recorded
As Low As
- Oct 9, 20266.00%▲ from 5.25%
- Sep 21, 20265.25%first recorded
As Low As
- Oct 6, 20266.05%▲ from 5.92%
- Sep 27, 20265.92%▲ from 5.80%
- Sep 18, 20265.80%first recorded
No additional details available.
- Oct 9, 20266.10%▼ from 6.14%
- Sep 14, 20266.14%first recorded
Type - LTV 80% or less; Purchase & Construction; Fixed for 3 years then changes every 12 months; Index: weekly average yield on US Treasury Bill - 3 years plus margin; rate never increases more than 6 percentage points over loan term; includes 0.25% discount for auto charge from a Jeff Bank deposit account
- Oct 14, 20266.13%▼ from 6.25%
- Oct 8, 20266.25%first recorded
As Low As; Construction ARMs (Adjustable Rate Mortgages); Rate Description: 3/1; Rates are subject to change daily. Please contact Credit Union for additional program options.
Owner Occupied; Super Conforming ARM
- Oct 15, 20266.13%▲ from 6.00%
- Sep 25, 20266.00%first recorded
No additional details available.
As Low As; Fixed for first 3 years, then adjusts annually per current index plus 2% margin for life of the loan
- Oct 15, 20266.29%▼ from 6.34%
- Oct 9, 20266.34%▼ from 6.37%
- Sep 25, 20266.37%▲ from 6.07%
- Sep 18, 20266.07%first recorded
As Low As; ARM 3/1 (30-year term)
- Oct 15, 20266.38%▲ from 5.88%
- Sep 12, 20265.88%first recorded
Adjustable rate mortgage; 3/1 ARM; up to 95% LTV; no mortgage insurance required
Initial fixed period: 3 years; then adjusts annually; 95% LTV for purchases; no private mortgage insurance; maximum loan amount $832,750; credit score 710 or better; rate current as of August 28, 2026
Loan amount up to $970,800
Loan limit: Up to $970,800 (Morris County, NJ); Jumbo ARMs ($417,000 and over) add 0.125% to stated rates
ARM; Second Mortgage ARMs amortized over up to 15 years
As Low As; Rates effective 10/13/26; Index UST1YW plus margin 2.75%; max annual adjustment 2%; max over life of loan 5%; PMI required with less than 10% down; no conversion option
Rates based on a 45 day lock
- Oct 15, 20266.49%▲ from 6.45%
- Oct 4, 20266.45%▼ from 6.49%
- Oct 2, 20266.49%▲ from 6.33%
- Sep 25, 20266.33%▲ from 6.21%
As Low As; Effective Date: Thursday, October 15th, 2026
- Oct 15, 20266.50%▼ from 6.75%
- Oct 13, 20266.75%▲ from 6.38%
- Sep 25, 20266.38%first recorded
Adjustable rate mortgage; Payment factor; Rates (as low as); APR (as low as)
- Oct 10, 20266.51%▼ from 6.51%
- Oct 6, 20266.51%▲ from 6.51%
- Oct 2, 20266.51%▼ from 6.51%
- Oct 1, 20266.51%▲ from 6.51%
As Low As; ELGA Portfolio; Mortgage Rates
- Oct 9, 20266.58%▲ from 6.46%
- Sep 18, 20266.46%first recorded
Owner Occupied Residential Real Estate; 3% Tri-Annual Cap, 5% Lifetime Cap; Loan to Value: <=95%
ARM: rate adjusts after closing; Monthly payment example for $500,000 loan: 84 months at $3,160.34 followed by 276 months at $3,160.34
Primary residence; servicing retained; 2/6 Cap; tied to 1-year Treasury Bill with 2.875% margin; 30 year maximum term
ARM rate effective 09/28/2026; applies to initial term
- Oct 1, 20266.66%▲ from 6.28%
- Sep 18, 20266.28%first recorded
No additional details available.
- Oct 13, 20266.66%▼ from 6.75%
- Sep 29, 20266.75%▲ from 6.50%
- Sep 24, 20266.50%first recorded
Initial rate 6.500% for 3 years; fully indexed rate 6.500% for 27 years; 359 payments of $632.07 and 1 payment of $629.85 per $100,000 borrowed; Maximum LTV 75%; APR based on $100,000 loan; rates for Purchase or Refinance
Adjustable Rates; 0 Points Option; Conventional loans, maximum 80% LTV; APR based on $160,000 loan amount
As Low As; Rates as low as based on 720+ credit score; Fixed for initial 3 years, then adjustable
- Oct 5, 20266.69%▲ from 6.43%
- Sep 14, 20266.43%first recorded
As Low As; Adjustable-rate mortgage, fixed for initial 3 years, then adjusts yearly; New Home and Advantage Home Loans
Adjustable Rate; 1 Point Option; Conventional loans, maximum 80% LTV; APR based on $160,000 loan amount
2-30 Year Term, annual interest rate adjustment after the first 3 years; Interest rate floor of 3.250%; Rate adjustments based on U.S. Treasury weekly average yield plus 2.75% margin, rounded to nearest 1/8th; 2% adjustment cap / 6% lifetime cap; Based on a $500,000 loan on a primary or second home in 1st lien position, with an 80% LTV
2/6 Cap; tied to 1-year Treasury Bill with 3.250% margin; 30 year maximum term; servicing retained
Loan to Value: 85%; Index: MIRS Transition Index; Caps: Life: Max+6%, Min3.0%; Rate determined by credit score
As Low As; fixed for first three years, then adjusts annually; APR for conforming loans 6.781%, jumbo loans 6.912% (jumbo APR assumes $900,000 loan amount, other loans assume $100,000)
- Oct 14, 20266.78%▲ from 6.73%
- Sep 22, 20266.73%▲ from 6.51%
- Sep 14, 20266.51%first recorded
Fixed for 3 years and then adjusts yearly.; Rates based on 80% LTV
No additional details available.
No additional details available.
- Oct 7, 20266.85%▲ from 6.37%
- Sep 15, 20266.37%first recorded
Effective October 8, 2026; Monthly payment per $1000: $5.76
As Low As; Type: 3/1/30; NY ONLY - APR* as low as (0 pts.)
Rate Caps: 2%/2%/5%; Fully Indexed Rate: 7.020; Range of Monthly Payments per $10,000: Year 1-3 $57.57, Year 4 $53.90-$69.90, Year 5 $53.90-$82.80, Year 6-30 $53.90-$89.40
- Oct 1, 20266.88%▲ from 6.79%
- Sep 24, 20266.79%▲ from 6.66%
- Sep 22, 20266.66%▲ from 6.60%
- Sep 18, 20266.60%first recorded
Adjustable Rate 1st Mortgages (Up to $970,800)
Loan amounts up to $970,800
ARM; 3 year ARMs amortized over up to 20 years
Rate Type: Variable
- Oct 14, 20266.90%▼ from 7.00%
- Oct 1, 20267.00%▲ from 6.83%
- Sep 27, 20266.83%▲ from 6.73%
- Sep 22, 20266.73%▲ from 6.65%
Months 1 to 36:; Months 37 to 359:; Months 360:; Margin: 3.875%; Index: 4.05%
Conform / Jumbo: Up to $806,500
- Oct 5, 20266.93%▲ from 6.62%
- Sep 14, 20266.62%first recorded
Investment Property Adjustable Rate Mortgages (Non-Owner Occupied) - servicing retained
Interest rate and APR starting at; $200,000 loan amount; $1215 payment; 30-year term (360 payments); rates based on 70% LTV, 760+ credit score
Term: Initial Fixed Period (First 3 Years); Example: Loan Amount $300,000, 30-year amortization, Primary Residence, 80% LTV; Payment examples include principal and interest only
- Oct 9, 20266.99%▲ from 6.44%
- Oct 2, 20266.44%▼ from 6.58%
- Sep 25, 20266.58%▼ from 6.67%
- Sep 14, 20266.67%first recorded
Term: Initial Fixed Period (First 3 Years)
Up to 90% LTV; No Closing Costs; 36 month intro rate as low as 7.00%; After Intro Period: as low as Prime Rate +0.0%
- Sep 21, 20267.00%▲ from 6.75%
- Sep 14, 20266.75%first recorded
As Low As; Type: 3/1/30; APR* as low as (0 pts.)
Initial fixed period 3 years, then adjusts; APR based on credit score of 720 or greater
Adjustable rate mortgage; rates based on $200,000 loan amount; effective 09/21/2026
Adjustable rate mortgage; rates based on $200,000 loan amount; effective 09/21/2026
ARM; initial rate fixed for first 3 years, adjusts annually thereafter; Maximum loan amount $3,000,000; APR based on 20% down payment | Rate stated as: 6.000% for 36 months, 8.000% for 324 months*
- Oct 14, 20267.06%▲ from 6.82%
- Sep 15, 20266.82%first recorded
Conform / Jumbo: Over $806,500
- Oct 5, 20267.07%▲ from 6.73%
- Sep 14, 20266.73%first recorded
As Low As; Lot loan, 3/1 adjustable-rate mortgage
- Oct 13, 20267.09%▲ from 7.01%
- Oct 1, 20267.01%▲ from 6.93%
- Sep 22, 20266.93%▲ from 6.76%
- Sep 18, 20266.76%first recorded
Home Mortgage Loans in Central Ohio; APR as low as; Conventional owner-occupied purchases and refinances; Mortgage rates effective Noon on Thursday, October 1, 2026
- Oct 4, 20267.10%▲ from 6.72%
- Sep 16, 20266.72%first recorded
As Low As; Conventional owner-occupied single-family purchases and refinances
- Oct 4, 20267.10%▲ from 6.72%
- Sep 16, 20266.72%first recorded
Caps: 1/1/5; Fully Indexed Rate: 7.500%
- Oct 11, 20267.10%▲ from 6.93%
- Oct 1, 20266.93%▲ from 6.85%
- Sep 24, 20266.85%▲ from 6.69%
- Sep 15, 20266.69%first recorded
Mortgage Loan Rates; PMT: $6.08
No additional details available.
- Oct 1, 20267.14%▲ from 7.01%
- Sep 27, 20267.01%first recorded
No additional details available.
- Oct 7, 20267.17%▲ from 6.72%
- Sep 15, 20266.72%first recorded
Construction Loan Rates; Pmt column (payment per $1,000) excluded
Adjustable rate mortgage; fixed for first 3 years, then adjusts annually; ARM rate floor 4.00%; 20% down primary residence; 60-day lock
No additional details available.
Initial Rate Period: 3 Years; First Adjusted Rate: 7.250% (thereafter variable)
Number of Monthly Payments: 360; Initial Interest Rate: 6.625%; Initial APR: 7.251%
ARM term 3/1; APR based on $165,000; 2% per year & 6% life of loan cap; Effective Date: Thursday, October 15, 2026
Term: 10 Years, 20-Year Amortization; Construction and Land Loan Options; adjustable-rate land loan
- Oct 15, 20267.32%▼ from 7.37%
- Oct 9, 20267.37%▲ from 7.34%
- Oct 2, 20267.34%▲ from 7.26%
- Sep 25, 20267.26%▲ from 7.06%
As Low As; Investment Property ARM 1st Mortgage Purchase or Refinance ELGA Portfolio; APR based on estimated loan amount of $175,000
Adjustable Rate Mortgage; Maximum Loan Amount $850,000; Max. LTV: 95%; Loan Fee: 0.500%
Adjustable Rate Mortgage; Max. LTV: 95%; Loan Fee: 0.500%; Maximum Loan Amount $850,000
Max LTV: 95%; Loan Fee: 0.500%
Adjustable Rate Mortgage (ARM); Conventional Loan Limits Apply; Initial rate period: 36 months
- Oct 1, 20267.40%▲ from 7.35%
- Sep 14, 20267.35%first recorded
ARM; 3 year ARMs amortized over up to 20 years
Owner-occupied, minimum 20% down payment/equity; APR based on $185,000 loan, 30 year amortization
No additional details available.
Adjustable Rate Mortgage; Fully Indexed Rate: 7.75%; Remaining Monthly Payments: 324
Rate Type: Variable
- Oct 14, 20267.52%▼ from 7.61%
- Oct 1, 20267.61%▲ from 7.44%
- Sep 27, 20267.44%▲ from 7.35%
- Sep 22, 20267.35%▲ from 7.27%
Initial interest rate 6.990%; APR subject to increase; later payments at 7.625%; loan amount $85,000; estimated property value $100,000; WI (Ozaukee county); 60-day rate lock; assumed credit score 740
- Oct 14, 20267.54%▲ from 7.46%
- Sep 24, 20267.46%first recorded
No additional details available.
- Oct 1, 20267.56%▲ from 7.42%
- Sep 16, 20267.42%first recorded
Initial interest rate 7.375%; APR subject to increase; later payments at 7.625%; loan amount $180,000; estimated property value $225,000; WI (Ozaukee county); primary residence; 60-day rate lock; assumed credit score 740
- Oct 14, 20267.62%▼ from 7.63%
- Sep 15, 20267.63%first recorded
As Low As; Adjustable-Rate Mortgage, fixed for 3 years then adjusts every 12 months; Monthly Cost Per $10,000: $64.03; Rates effective starting October 15, 2026
Adjustable Rate Mortgage
Primary residences on owned land; servicing retained; 2/6 Cap; tied to 1-year Treasury Bill with 2.875% margin; 20 year maximum term
ARM 3% Tri-Annual Cap, 5% Lifetime Cap; Loan to Value Ratio: 75%
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3/1 ARM Mortgage Rate Trend
Daily average rates across all mortgage types
Daily mortgage rate averages compiled from our database of 8,500+ banks and credit unions — updated daily.
The 3/1 ARM rate rose 0.116 points over the past 7 days to 6.858%, up from 6.741% last week.
ARM Mortgage Calculators
Methodology & Data Sources
Direct-Sourced & Verified Rate Data: Every 3/1 ARM rate on this page is sourced directly from the official website of the lending institution. Adjustable-rate mortgage rates reflect the initial fixed-rate period and are verified daily.
Coast-to-Coast Lender Coverage: Our database monitors over 8,500 banks and credit unions across all 50 states, capturing a diverse mix of community credit unions, regional banks, and online lenders. This breadth ensures you see competitive rates that many rate surveys miss.
Time-Stamped for Full Transparency: Because 3/1 ARM rates can shift multiple times per week in response to economic conditions and Federal Reserve policy changes, every rate entry carries its own specific "last updated" date. You always know exactly how fresh the data is.
Proprietary Lender Safety Ratings: Rate alone is only part of the picture. MonitorBankRates evaluates the financial stability of every listed institution using regulatory FDIC and NCUA data. Our composite Health Grades (A+ to F), Star Ratings, and Texas Ratio calculations give you a clear view of lender stability so you can borrow with confidence from a financially sound institution.
Frequently Asked Questions About 3/1 ARM Rates
What is a 3/1 ARM?
How does the rate adjustment work after the 3-year fixed period?
What are rate caps on a 3/1 ARM?
Who is a 3/1 ARM best suited for?
How does a 3/1 ARM compare to a 5/1 or 7/1 ARM?
How does a 3/1 ARM compare to a 30-year fixed mortgage?
What happens if I stay in the loan past the 3-year fixed period?
What is the difference between interest rate and APR on a 3/1 ARM?
How are 3/1 ARM rates determined?
What are today's best 3/1 ARM rates?
- Evergreen Credit Union: 4.99% (Primary Home-First Mortgage - 3 Year ARM)
- Alabama Credit Union: 5.00% (3/1 ARM, First Mortgage)
- Fox Valley Savings Bank: 5.25% (3/1 Adjustable-Rate Mortgage)
- Investment Savings Bank: 5.00% (Adjustable Rate Mortgage Loan (ARM) - 3/1 ARM)
- Fond Du Lac Credit Union: 5.25% (First Mortgage - 3/1 Year ARM)
More Mortgage Rate Options
