How much down payment do I need for a jumbo mortgage?

15% with 700+ FICO at most lenders. 10% available at some banks for 740+ FICO with strong reserves.

Jumbo loans (loan amount above the county conforming limit) generally require more down payment than conforming. Standard: 20% down (80% LTV). Some programs: 15% down with 700+ FICO and 6+ months reserves; 10% down at portfolio lenders for 740+ FICO with 12+ months reserves and strong overall profile. Jumbo cash-out refinance caps at 75% LTV typically (vs. 80% on conforming cash-out). Reserves requirement is the single biggest difference from conforming: jumbo wants 6-12 months of PITIA in liquid reserves, whereas conforming requires 0-2 months on primary residence. The "10% down jumbo" loans are usually portfolio products from large depository banks — they hold the loans rather than securitizing, so they price exceptions case-by-case. Jumbo rates are not always higher than conforming; in many markets jumbo prices below conforming because investor demand is strong. Pre-approval matters more on jumbo since exceptions are more case-specific.