Jumbo Loan vs Conventional Loan: Down Payment Requirements
When purchasing a high-value home in Texas, one of the first decisions you'll face is whether you're getting a conventional mortgage or a jumbo loan. While both serve the same fundamental purpose, the differences in down payment requirements, qualification criteria, and loan terms can significantly affect your buying power and monthly costs. Here's a side-by-side comparison.
The Core Difference: Conforming Limits
The fundamental distinction between jumbo and conventional (conforming) loans is the loan amount relative to FHFA limits. For 2026:
- Conventional (conforming): Up to $806,500 in most Texas counties
- Jumbo: Above $806,500
Conventional conforming loans are sold to Fannie Mae or Freddie Mac, which standardizes their requirements. Jumbo loans stay on the lender's books, so each lender sets its own guidelines — creating more variation in terms across lenders.
Down Payment: A Detailed Comparison
Conventional Loan Down Payments
- 3% down: Available to first-time buyers through programs like Fannie Mae HomeReady or Freddie Mac Home Possible
- 5% down: Available for repeat buyers in many conventional loan programs
- 10–19% down: Requires private mortgage insurance (PMI), which adds to your monthly cost
- 20% down: No PMI required; best rates available
Jumbo Loan Down Payments
- 10% down: Available from select lenders for highly qualified borrowers (excellent credit, low DTI, strong reserves)
- 15% down: More commonly available; PMI may still be required by some lenders
- 20% down: Standard expectation from most jumbo lenders; eliminates PMI and qualifies for best rates
- 25–30% down: Required by some conservative lenders on ultra-jumbo loans above $2M
Credit Score Requirements
Conventional loans are available to borrowers with credit scores as low as 620 (though you'll get better rates at 740+). Jumbo loans typically require 700 as a minimum, with 720–740+ preferred by most lenders. Some portfolio lenders offer jumbo programs for scores in the 680s, but expect higher rates and stricter conditions.
Interest Rates: Jumbo vs Conventional
Historically, jumbo loans carried higher interest rates than conforming loans because of the greater risk to lenders. In 2026, this relationship has become more nuanced. Strong jumbo borrowers (760+ credit, 20%+ down, excellent reserves) often qualify for rates competitive with or even slightly below conventional rates at some lenders. The key is shopping multiple lenders and comparing APRs, not just stated rates.
Debt-to-Income Ratio Standards
Conventional loans typically allow DTIs up to 45–50% with compensating factors. Jumbo lenders generally cap DTI at 43%, with many preferring 38–40% for loan amounts above $1.5M. The lower your DTI, the more favorably lenders view your application.
Which Makes More Sense for You?
If you're buying under the conforming limit, a conventional loan is almost always the better choice — lower down payment options, broader lender competition, and potentially lower rates. If you're buying above the limit, jumbo is your only option unless you can make a larger down payment that brings the financed portion below the conforming limit (a strategy called a "combination loan" or "80-10-10").
Texas luxury markets like the Dallas Turtle Creek corridor, Austin's Barton Hills, or Houston's River Oaks routinely involve jumbo financing. Understanding your options is the first step. Explore our mortgage resources or speak with our team about your specific situation.