The Core Difference
USDA's Zero Down vs. Conventional's Flexibility
USDA's headline feature is zero down payment — no other conventional or government program matches this except VA. That alone makes USDA incredibly attractive for eligible buyers. The catch: your property must be in a USDA-eligible area (rural or suburban, outside major metropolitan zones), and your household income cannot exceed 115% of the area median income.
Conventional has none of these restrictions. You can buy anywhere, earn any amount, and choose from single-family homes to multi-unit properties to investment rentals. The trade-off is that conventional requires a down payment — typically 3-5% for primary residences — and PMI if you put less than 20% down. For buyers who qualify for both, the decision comes down to cash on hand, location, and long-term cost.
USDA Wins When You Have...
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Limited savings for down paymentZero down means $0 out of pocket beyond closing costs (which can also be financed).
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Property in an eligible areaMany suburban neighborhoods qualify — more areas than most buyers expect.
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Household income under 115% AMIAll household members' income counts, not just the borrower's.
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Moderate credit (640+)USDA rates are competitive and guarantee fees are typically lower than PMI at similar scores.
Conventional Wins When You Have...
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Property in a non-eligible areaUSDA doesn't work in metro areas. Conventional works everywhere.
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Income above USDA limitsNo income cap on conventional loans.
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20% down payment availableEliminates PMI entirely. USDA guarantee fee has no elimination path.
Side by Side
Conventional vs. USDA: Full Comparison
Every major factor compared. The highlighted column is USDA.
| Factor | USDA Loan | Conventional Loan |
|---|
| Down Payment | 0% | 3–5% (primary) · 15–25% (investment) |
| Location Restriction | USDA-eligible areas only | None — buy anywhere |
| Income Limit | 115% of area median income | None (80% AMI for 3% down programs only) |
| Minimum Credit Score | 640 (most lenders) | 620 |
| Upfront Fee | 1.0% guarantee fee (rolled in) | None |
| Annual Fee | 0.35% annual guarantee fee | PMI: 0.2%–2% (varies by score/LTV) |
| Fee Duration | Life of loan | PMI cancels at 20% equity |
| Property Types | Single-family primary residence only | 1-4 units, investment, second home |
| Max DTI | 41% standard (flexible with comp. factors) | 45–50% |
| Seller Concessions | Up to 6% | 3–6% (varies by LTV) |
| Loan Limits | No set limit (based on repayment ability) | $806,500 conforming limit |
| Occupancy | Primary residence only | Primary, second home, investment |
The Gatekeepers
USDA Eligibility: Location and Income
USDA eligibility comes down to two factors that conventional doesn't have: where the property is located and how much your household earns. Both must be met simultaneously — qualifying on one but not the other disqualifies you from the program.
Location Eligibility
USDA maintains a map of eligible areas that includes most of the country outside major metropolitan centers. Many buyers are surprised to learn that suburban neighborhoods, smaller towns, and areas just outside metro boundaries often qualify. The map is updated periodically, so properties that were ineligible a few years ago may be eligible now (and vice versa).
The only way to confirm eligibility is to check the specific property address on USDA's online eligibility map. Your loan officer at Bayou Mortgage can run this check instantly.
Income Eligibility
USDA measures total household income — not just the borrower's income, but the income of every adult living in the household. This is different from conventional, which only counts income for borrowers on the loan. A household where only one person is on the mortgage but two people earn income could exceed the limit even if the borrower's individual income qualifies.
The cap is 115% of the area median income for the county where the property is located. Deductions for childcare, elderly household members, and dependents can reduce the calculation.
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Conventional has no location or income restrictions
If the property you want is outside USDA-eligible areas or your household income exceeds the limit, conventional is the default alternative. With 3% down programs available for moderate-income buyers and standard 5% down for everyone else, conventional provides a clear path when USDA eligibility doesn't work out.
Mortgage Insurance
USDA Guarantee Fee vs. Conventional PMI
Both loans carry mortgage insurance — USDA calls theirs a guarantee fee, conventional calls it private mortgage insurance (PMI). The structures are different, and the long-term cost comparison matters significantly.
30-Year Cost Comparison
$250,000 Purchase · 680 Credit Score
How total mortgage insurance costs compare over the life of each loan.
FactorUSDAConventional (5% down)
Upfront Fee
$2,500 (1.0%, rolled into loan)
$0
Annual Fee/PMI
~$875/yr (0.35%)
~$1,425/yr (~0.60% at 680)
Fee Duration
Life of loan
Cancels ~year 8-9
Total Over 30 Years
~$28,000
~$13,000 (PMI portion only)
Illustrative example. Assumes 3% annual appreciation. Actual costs vary. Bayou Mortgage LLC · NMLS #1845349.
USDA's annual guarantee fee (0.35%) is lower than most conventional PMI rates — which makes the monthly payment lower in the early years. But USDA's guarantee fee never goes away, while conventional PMI cancels at 20% equity. Over the full 30-year term, conventional's total mortgage insurance cost is typically lower for borrowers who stay in the home long enough to hit that 20% equity mark.
Real Scenarios
Which Loan Wins for Your Situation
The right loan depends on your specific circumstances — location, savings, income, and timeline.
No savings, eligible area, moderate income
Zero down with USDA eliminates the biggest barrier to homeownership. Guarantee fee is lower than PMI monthly. Location qualifies. Household income is within limits. USDA is the clear winner — there's no reason to put 3-5% down if you don't have to.
USDA
20% down payment available, strong credit
With 20% down, conventional eliminates PMI entirely. USDA's guarantee fee would still apply (it never cancels). No mortgage insurance of any kind beats a low guarantee fee. Conventional wins decisively when you have the cash.
Conventional
Property in a metro area, limited savings
USDA is not available in metro areas. Conventional at 3-5% down is the path — or FHA at 3.5% if credit is below 680. Location alone eliminates USDA from the conversation regardless of income or savings.
See 3% down programs →Conventional
Household income over 115% AMI, eligible area
Income disqualifies USDA even though the location works. Conventional has no income limit (except for 3% down programs which cap at 80% AMI). Standard 5% down conventional is the straightforward alternative.
See conventional requirements →Conventional
Eligible area, qualifies for both, planning to stay 15+ years
This is the close call. USDA's zero down saves cash upfront and monthly guarantee fee is lower initially. But over 15+ years, conventional PMI cancels while USDA's fee continues. Run both scenarios with actual rate quotes — the answer depends on your specific rate, score, and appreciation assumptions.
Run Both
Common Questions
Conventional vs USDA FAQ
Questions about choosing between conventional and USDA financing.
How do I check if a property is in a USDA-eligible area? +
USDA maintains an online eligibility map at rd.usda.gov where you can enter any property address to check eligibility. The map shows eligible and ineligible areas at the street level. Your loan officer at Bayou Mortgage can also check this for you during the pre-approval process — it takes less than a minute.
Can I use USDA to buy a fixer-upper? +
USDA requires the property to be in move-in condition and meet their minimum property standards at appraisal. Major repairs like a failing roof, plumbing issues, or structural problems would need to be completed before closing. For true fixer-uppers, an FHA 203(k) renovation loan or conventional renovation product may be better suited.
See property condition requirements →Does USDA count all household income, even non-borrowers? +
Yes — this is a key difference from conventional. USDA counts the income of all adult household members, not just the people on the loan application. If your spouse, adult child, or anyone else living in the home earns income, it counts toward the 115% AMI household income limit. Conventional only considers income for borrowers actually on the loan.
Can I refinance from USDA to conventional to remove the guarantee fee? +
Yes. Once you've built 20% equity through appreciation and principal paydown, you can refinance from USDA to a conventional loan and eliminate the annual guarantee fee entirely. This is a common strategy for USDA borrowers who want to reduce their long-term costs. Bayou Mortgage can help you monitor when this refinance makes financial sense.
See how PMI cancellation works →Is there a USDA loan limit? +
USDA doesn't have a specific loan limit the way conventional ($806,500) or FHA ($498,257 floor) does. Instead, the maximum loan amount is determined by your ability to repay based on income, debts, and the area's housing costs. In practice, USDA loans tend to be for moderate-priced homes because the income limit caps the borrowing capacity.
Can I buy a condo or multi-unit property with USDA? +
USDA is limited to single-family homes only. Condos, townhomes (depending on structure), 2-4 unit properties, and manufactured homes on leased land are generally not eligible. If you want a condo or multi-unit property, conventional is the better fit.
See multi-unit financing options →Which loan closes faster — USDA or conventional? +
Conventional typically closes faster. USDA requires an additional approval step through the USDA Rural Development office after the lender approves your file, which can add 1-3 weeks to the timeline. Conventional loans are approved solely by the lender and can close in 21-30 days. If you're in a competitive market where closing speed matters, conventional has the advantage.
Not Sure Which Loan Fits?
Bayou Mortgage does both USDA and conventional loans. Give us the property address and we'll check USDA eligibility, run both scenarios, and show you the real numbers.
