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Fairfield sits between Sacramento and San Francisco. That corridor drives serious demand from military families, commuters, and investors.
HousingWire flagged ARM demand shifting as the 30-year fixed hit 6.57%. That shift matters for Fairfield buyers watching monthly payments closely.
620
Min Credit Score
$832,750
Max Conforming Loan
5%
Min Down Payment
5, 7, or 10 Years
Fixed Period Options
5/2/5 Structure
Typical Rate Cap
Adjustable Rate Mortgages (ARMs) in Fairfield
Most ARMs require a 620 minimum credit score. Stronger scores above 720 get you better margin terms when your rate adjusts.
Debt-to-income ratio — your monthly debts divided by gross income — must stay under 45% for most ARM programs. Some lenders cap it at 43%.
We shop ARMs across 200+ wholesale lenders. Rates vary significantly — one lender's 5/1 ARM isn't the same as another's.
Portfolio ARMs are harder to find at retail banks. Wholesale channels give us access to programs built for Fairfield's price range.
A 7/1 ARM makes sense if you plan to sell or refinance within seven years. Most Fairfield buyers move before the first adjustment hits.
Watch the margin and index, not just the start rate. The margin is the fixed markup lenders add when your rate adjusts. That number follows you.
A 30-year fixed gives you certainty. An ARM gives you a lower payment now — and that difference can be $200–$400 per month early on.
Jumbo ARMs are common for buyers above the conforming limit. If your loan exceeds $832,750, ask whether a jumbo ARM undercuts your fixed options.
Travis Air Force Base means a large pool of buyers who transfer every 3–5 years. For those borrowers, a 5/1 ARM often costs less overall.
Solano County's affordability relative to the Bay Area attracts buyers stretching their budgets. A lower ARM start rate can make that stretch work.
Common structures are 5/1, 7/1, and 10/1. The first number is years your rate stays fixed before it adjusts annually.
Caps limit how much your rate can rise. A 5/2/5 cap means 5% at first adjustment, 2% per year after, 5% lifetime max.
Risk depends on your timeline. Buyers planning to move within the fixed period face minimal adjustment risk.
Yes. Many borrowers refinance into a fixed loan before the adjustment window opens. Your financial position at that time determines your options.
Yes. Investors often use ARMs to lower holding costs. Qualification requirements are stricter on investment properties.
Most conforming ARMs tie to SOFR — the Secured Overnight Financing Rate. Your rate equals that index plus the lender's margin.