A jumbo loan is any mortgage larger than the conforming loan limit for the county where the home sits. In California, that line moves from county to county. For 2026, the limit for a one-unit home is $1,249,125 in Orange County and Los Angeles County, and $1,104,000 in San Diego County, according to the Federal Housing Finance Agency's 2026 county list.
Above those numbers, Fannie Mae and Freddie Mac can't buy the loan, so each lender sets its own rules. This guide covers the 2026 limits, what jumbo lenders actually review, and how to put together an application that holds up. Ali Shariat is both a Realtor and a licensed loan officer, so the advice covers the home search and the financing together.
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Quick Guide
- The trigger is the loan amount, not the price. A $1.5 million home can still have a conforming loan if the down payment keeps the balance under the county limit.
- 2026 one-unit limits: $1,249,125 in Orange and Los Angeles counties; $1,104,000 in San Diego County. The national baseline is $832,750.
- No single jumbo rulebook. Credit score, down payment, debt-to-income and reserve requirements vary by lender and program.
- Federal ability-to-repay rules still apply. Lenders must verify income, assets and debts.
- The property gets scrutiny too. Custom and high-end homes with few comparable sales are harder to appraise.
2026 Conforming Loan Limits in Southern California
FHFA announced the 2026 limits in November 2025. The baseline one-unit limit rose to $832,750, and the ceiling for high-cost areas is $1,249,125, which is 150% of the baseline. Each county's limit falls somewhere in that range.
Here are the 2026 limits for the three Southern California counties we work in most, taken from FHFA's county file:
| County | 1 unit | 2 units | 3 units | 4 units |
|---|---|---|---|---|
| Orange | $1,249,125 | $1,599,375 | $1,933,200 | $2,402,625 |
| Los Angeles | $1,249,125 | $1,599,375 | $1,933,200 | $2,402,625 |
| San Diego | $1,104,000 | $1,413,350 | $1,708,400 | $2,123,100 |
Loans between the $832,750 baseline and the county limit are often called high-balance conforming loans. They still follow Fannie Mae or Freddie Mac rules, but pricing and some eligibility terms can differ from standard conforming loans. Only the amount above the county limit puts you in jumbo territory.
How the Limit Plays Out on Real Prices
The same purchase can be conforming in one county and jumbo in the next. With 20% down on a one-unit home:
| Purchase price | Loan at 20% down | Orange / Los Angeles | San Diego |
|---|---|---|---|
| $1,300,000 | $1,040,000 | High-balance conforming | High-balance conforming |
| $1,500,000 | $1,200,000 | High-balance conforming | Jumbo |
| $1,700,000 | $1,360,000 | Jumbo | Jumbo |
To stay conforming on a $1,500,000 San Diego home, you'd need to put down at least $396,000, or 26.4%, to keep the loan at $1,104,000. On a $1,600,000 home in Irvine or Newport Beach, the minimum down payment to stay conforming would be $350,875. Whether that's worth it depends on pricing, your cash and what else you need that money for.
Jumbo vs. Conforming: What Changes
| Conforming (incl. high-balance) | Jumbo | |
|---|---|---|
| Who sets the rules | Fannie Mae and Freddie Mac guidelines | Each lender or investor |
| Maximum loan | County limit set by FHFA | Set by the lender's program |
| Credit, down payment, reserves | Published agency guidelines | Vary by lender, loan size and property |
| Mortgage insurance | Required by the agencies above 80% loan-to-value | Depends on the program |
| Appraisal | Standard appraisal, or value acceptance on some eligible files | Full appraisal; some lenders require two on larger loans |
| Income documentation | Agency rules | Lender rules, often more detailed |
Jumbo isn't automatically worse. Depending on the market, jumbo pricing can be competitive with high-balance conforming. Compare actual quotes instead of assuming.
What Jumbo Lenders Look At
Every jumbo program is different, but the same six areas drive every decision. Be wary of any article, including this one, that promises a single minimum score or down payment for all jumbo loans. Those numbers come from a specific lender's program sheet.
Credit History
Expect a closer look than on a conforming loan. Lenders review scores, payment history, revolving balances and recent inquiries. Higher scores generally open up more programs and better pricing. Pull your reports early and fix errors before you apply.
Down Payment
Required equity depends on the loan amount, occupancy, property type and your credit and reserves. Larger loans and second homes usually need more down. Remember that the most a lender will finance isn't necessarily what you should finance. Putting extra cash into the house leaves less for reserves and repairs.
Debt-to-Income Ratio
Federal ability-to-repay rules apply to jumbo loans too. Since the CFPB's 2021 General QM rule took effect, the old flat 43% DTI cap no longer defines a qualified mortgage. Lenders must still consider your DTI or residual income and verify your income, assets and debts. Each jumbo lender then sets its own DTI maximum.
Cash Reserves
Reserves are liquid or eligible assets left over after closing, usually counted in months of the new housing payment. Jumbo programs often want more months than conforming loans, and some count retirement or brokerage accounts at a discount. Ask each lender how it calculates reserves before you decide on your down payment.
Income Documentation
Salaried buyers usually need pay stubs, W-2s and tax returns. Buyers with bonuses, commissions, RSUs, business income or rental income need a longer history and more paperwork. If you own a business, have your CPA ready to answer questions, and expect the underwriter to read your returns closely.
The Property and the Appraisal
Luxury homes with custom features, large lots, views or few nearby sales are harder to value. If the appraisal comes in below the price, the loan is sized on the lower number and you'll need more cash or a renegotiation. Our guide to low appraisals and the purchase price gap walks through the options.
California Costs to Budget For
Qualifying is one test. Living comfortably with the payment is another. In California, a few costs scale with the price and affect both your DTI and your budget.
- Property taxes. Under Proposition 13, the general tax rate is 1% of assessed value plus voter-approved debt, and the home is reassessed when you buy it, according to the State Board of Equalization. Expect a supplemental tax bill after closing to cover the change in assessed value.
- Special taxes and HOA dues. Many newer communities, including parts of Irvine, carry Mello-Roos special taxes on top of the base rate. Check the tax bill and HOA budget before you write the offer.
- Homeowners insurance. High-value and coastal or hillside homes can be harder to insure. Get quotes early, because the lender needs proof of coverage before funding.
- Maintenance. Higher-end homes in places like Newport Beach often have pools, systems and finishes that cost more to keep up.
How to Strengthen a Jumbo Application
- Check the county limit first, and decide whether a larger down payment makes sense to stay conforming.
- Review your credit reports and pay down revolving balances before you apply.
- Organize two years of income documents, plus statements for every account you'll use for the down payment or reserves.
- Keep enough cash after closing for reserves, closing costs and repairs, not just the down payment.
- Get a full pre-approval on the actual jumbo program, not a generic letter.
- Compare at least two or three lenders, including rate, points, reserve rules and lock terms.
- Avoid new debt, large unexplained transfers and job changes until after closing.
Jumbo files also tend to take longer to underwrite. Our mortgage process timeline shows where those extra days usually go.
Key Takeaways
- For 2026, a one-unit loan above $1,249,125 in Orange or Los Angeles County, or above $1,104,000 in San Diego County, is a jumbo loan.
- The limit applies to the loan amount. A bigger down payment can keep an expensive home in conforming territory.
- Jumbo requirements for credit, down payment, DTI and reserves are set by each lender, so compare real program terms.
- Federal ability-to-repay rules still require lenders to verify your income, assets and debts.
- Budget for California-specific costs such as reassessed property taxes, Mello-Roos and insurance, not just the mortgage payment.
FAQs
What is the jumbo loan limit in Orange County for 2026?
For a one-unit home, any loan above $1,249,125 is a jumbo loan in Orange County in 2026. The same limit applies in Los Angeles County. In San Diego County, the one-unit limit is $1,104,000. Limits for two- to four-unit properties are higher and are listed in FHFA's county file.
What credit score do you need for a jumbo loan in California?
There's no single minimum. Each jumbo lender sets its own score requirements, which often change with loan size, down payment and reserves. Stronger credit generally means more program options and better pricing. Ask each lender for its requirement on your specific loan amount.
How much down payment do you need for a jumbo loan?
It depends on the lender, loan amount, occupancy and your financial profile. Some programs allow smaller down payments for well-qualified borrowers, and others require much more equity, especially on larger loans or second homes. Compare actual loan scenarios rather than relying on a quoted percentage.
How much do you need in reserves for a jumbo loan?
Reserve requirements are set by the lender and are usually counted in months of the new housing payment. Larger loans often require more months. Ask how the lender treats retirement and brokerage accounts, because some count only part of the balance.
Can a bigger down payment help you avoid a jumbo loan?
Yes. Because the limit applies to the loan amount, putting more down can keep the loan at or below the county limit. For example, a $1,500,000 home in San Diego County needs at least $396,000 down to keep the loan at $1,104,000. Compare that cost against jumbo pricing before you decide.
Plan Your Jumbo Purchase With Ali
Ali Shariat is a Realtor (DRE #02115442) and a licensed loan officer with Loan Factory (NMLS #1969265). He can price the home and the loan together, including whether staying conforming is worth the extra cash. Contact Ali or call (949) 818-1000.
