A jumbo loan is any mortgage that exceeds the Federal Housing Finance Agency's annual conforming loan limit — currently $806,500 in most U.S. counties and up to $1,209,750 in high-cost areas like coastal California, New York, Hawaii, and parts of D.C. Above those thresholds, Fannie Mae and Freddie Mac won't buy your loan, so it stays on a lender's books or gets sold to private investors. That changes everything about how the loan is underwritten and priced.
Why Jumbo Loans Exist as a Separate Category
Most U.S. mortgages get sold to Fannie Mae or Freddie Mac shortly after closing, which is what allows lenders to offer 30-year fixed rates and still recover their capital quickly. To be sold to them, the loan must conform to their standards — including the maximum loan amount. Loans above the limit can't be sold this way, so lenders keep them on their balance sheets or sell them privately.
That difference in funding source is the entire reason jumbo loans have separate rules. Without the Fannie/Freddie backstop, lenders take on more risk and require more underwriting cushion: stronger credit, larger down payments, bigger cash reserves, and more documented income stability.
Current Conforming Loan Limits (2026)
| Area | 1-Unit Limit | Jumbo Starts At |
|---|---|---|
| Most U.S. counties | $806,500 | $806,501+ |
| High-cost areas (SF, NYC, HI, DC) | $1,209,750 | $1,209,751+ |
| Alaska, Hawaii, U.S. Virgin Islands | $1,209,750 | $1,209,751+ |
The FHFA adjusts these limits each January based on national home price changes. Some lenders also offer "super conforming" or "high-balance conforming" loans for amounts between the standard limit and the high-cost limit in eligible counties — these aren't jumbo, but they're priced slightly above standard conforming.
Jumbo Loan Requirements
Even if you can put 20% down and easily afford the payment, jumbo lenders typically want to see 6–12 months of total mortgage payments (PITI) sitting in liquid accounts AFTER closing. A $5k/month payment means $30k–$60k held in reserves on top of your down payment and closing costs.
- Credit score: 700 minimum at most lenders; best rates at 740+. Some require 720+ for any jumbo.
- Down payment: 10–20% typical; some programs allow 5% with significant compensating factors.
- Cash reserves: 6–12 months of mortgage payments held in liquid accounts after closing.
- Debt-to-income ratio: typically capped at 43%, sometimes 38% on larger loan amounts.
- Income documentation: two years of W-2s or tax returns; self-employed borrowers face strict scrutiny.
- Appraisal: often two independent appraisals required on loans above $1.5M.
Rates: Lower Than You'd Expect
Historically, jumbo loans carried rates 0.25%–0.50% above conforming loans because of the added lender risk. Since around 2018, that gap has narrowed dramatically — and in some markets, jumbo rates now run at or below conforming.
The reason: banks compete fiercely for high-net-worth jumbo borrowers because the loan also brings deposit, wealth-management, and private-banking relationships. Many large banks (Chase, Wells, Bank of America, Citi) price jumbos as relationship products, offering rate discounts to existing private-bank customers. If you're an existing customer of a major bank, ask about relationship pricing before shopping outside.
When Jumbo Is the Only Option
If you're buying in a price range that requires a loan above the conforming limit, you have two paths: a jumbo loan, or splitting into a conforming first mortgage plus a piggyback second mortgage or HELOC. The piggyback approach used to be common when jumbo rates were significantly higher; today, with the rate gap narrow, a single jumbo loan is usually simpler and cheaper.
| Option | Pros | Cons |
|---|---|---|
| Single jumbo loan | Simpler, single closing, often best rate | Higher reserve and credit bar |
| Conforming + HELOC | Lower main-loan rate, smaller PMI | Two loans, two closings, HELOC adjusts |
| 80/10/10 piggyback | Avoids PMI, lower combined rate sometimes | Second loan typically higher rate |
A jumbo loan isn't inherently expensive — it's inherently selective. If you have a 740+ credit score, 20% down, six months of reserves, and stable W-2 income, you'll get a rate comparable to or better than conventional. The biggest planning step is the reserves requirement: don't deplete your savings on the down payment if you'll need 6–12 months of payments sitting liquid for the lender to approve. Model your full housing cost in the Mortgage Calculator, then add your reserve requirement to your total cash-needed-at-closing.
