Jumbo Loan Refinance California: Lower Your Rate on High-Balance Loans

California’s home values mean a lot of homeowners are carrying jumbo or high-balance loans. If your mortgage is above the conforming loan limit, refinancing works differently — and requires a lender who actually specializes in it. DiVita Home Finance closes jumbo refinances across Marin County, San Francisco, the Bay Area, and throughout California’s high-cost markets. 📞 (800) 239-1108

California Loan Limit Tiers in 2026

• Standard conforming: Up to $806,500 — qualifies for Fannie Mae/Freddie Mac standard guidelines
• High-balance conforming: Up to $1,149,825 in Marin, San Francisco, San Mateo, Santa Clara, and other high-cost CA counties — Fannie/Freddie eligible with slightly stricter requirements
• True jumbo: Above $1,149,825 — non-conforming, underwritten by private lenders with their own guidelines

Most of Marin County sits in the high-balance or jumbo tier. A $1.3M home with 20% down is a $1.04M loan — that’s jumbo territory, and the refinance process looks different than a standard refi.

Jumbo Refinance Requirements

• Credit score: 720–740 minimum; many lenders want 760+ for the best rates
• Equity: Minimum 20% (80% LTV); 25%–30% for cash-out
• Reserves: 12–24 months of mortgage payments in liquid assets
• DTI: Below 43%, often below 38% for portfolio jumbo programs
• Income documentation: 2 years of tax returns, W-2s, and bank statements — or bank statement income for self-employed borrowers

Jumbo Rates in 2026

Jumbo rates in 2026 have tracked closely with conforming rates — and in some cases come in slightly below, which is unusual historically. This happens because jumbo borrowers tend to be lower credit risk: high income, high equity, strong reserves. The spread between jumbo and conforming narrows when credit markets are functioning normally.

The catch: rate variation between lenders on jumbo loans can be 0.5%+ — far more than on conforming. Shopping multiple lenders, or working with a broker who can do it for you, is non-negotiable on these loan sizes. On a $1.5M loan, 0.5% in rate is over $700/month.

Self-Employed and Jumbo Refinance

California has a large population of business owners, tech founders, and consultants whose W-2 income understates their actual cash flow due to business deductions. If your tax returns show $300K in income but your bank deposits show $600K, ask about bank statement programs. Some allow jumbo refinancing using 12–24 months of bank deposits rather than tax return income. Most banks won’t do this; portfolio lenders will.

Jumbo Cash-Out Refinance

With California home values, many jumbo borrowers are sitting on $500K–$1M+ in equity. A jumbo cash-out refi can access that for investment property down payments, major renovations, or business capital. LTV limits are stricter on cash-out — typically 70%–75% — and reserve requirements go up. Rates are also slightly higher than rate-and-term refis. Compare this against a HELOC before committing; for smaller amounts, a HELOC often makes more sense.

DiVita Home Finance | NMLS #1070853 | Tiburon, CA | 📞 (800) 239-1108