A jumbo loan is any mortgage above the conforming loan limit — $832,750 in most U.S. counties for 2026, higher in designated high-cost areas. Because they can't be sold to Fannie Mae or Freddie Mac, jumbo loans are either kept on the lender's own books or sold to private investors, which means stricter underwriting than a comparable conforming loan.
Jumbo loans fund everything from move-up homes in ordinary markets to entry-level homes in expensive coastal metros, where even a modest house can price above the local conforming limit.
How it works
Jumbo underwriting typically requires stronger credit, larger cash reserves (often the equivalent of several months of mortgage payments held in savings after closing), and full income documentation. Some jumbo lenders also require two separate appraisals on properties above a certain price point, as an extra check on value.
For example, a buyer purchasing a $1,000,000 home in a standard-cost county with a $200,000 down payment would need an $800,000 loan — likely still under some counties' jumbo threshold but over others, which is exactly why checking the local conforming limit before assuming jumbo status matters.
Because jumbo loans aren't standardized the way conforming loans are, pricing and guideline differences between lenders can be larger than what you'd see shopping conforming loans — it's worth getting several jumbo quotes rather than assuming they're all similar.
When it matters to you
Jumbo status matters the moment your loan amount creeps near the conforming limit — a slightly larger down payment can sometimes keep you under the line and avoid jumbo underwriting entirely.
It matters for reserve planning too: jumbo lenders often require larger post-closing reserves than conforming loans, so factor that into how much cash you'll have left after closing.
Common mistakes
- Assuming jumbo loans are always more expensive than conforming — pricing has been competitive in many markets, so it's worth comparing rather than assuming.
- Not checking the local (county-specific) conforming limit before assuming a loan is jumbo, when a high-cost county limit might actually cover it.
- Underestimating the reserve requirement, which can be significantly higher than what a conforming loan requires.
- Skipping the second appraisal requirement in the budget and timeline when a jumbo lender requires one.
FAQs
What makes a loan jumbo instead of conforming?
Any loan amount above the local conforming loan limit set by the FHFA — $832,750 in most counties for 2026, higher in designated high-cost areas — is classified as jumbo.
Are jumbo loan rates higher than conforming rates?
Not necessarily. Jumbo rates have been competitive with conforming rates in many markets and sometimes lower, since jumbo borrowers typically have stronger credit profiles.
What reserves do I need for a jumbo loan?
Requirements vary by lender, but jumbo loans commonly require more months of post-closing cash reserves than a comparable conforming loan. Ask your lender for the exact requirement on your loan amount.