USDA Manual Underwriting: What It Means and How to Get Approved
If your USDA loan came back with a "Refer" or "Refer with Caution" finding from GUS, your file is headed for manual underwriting. That's not a denial. It's a signal that the automated system can't approve the file on its own and a human underwriter needs to evaluate it against the written guidelines.
USDA loans are an under-used program. They offer 100% financing (no down payment), competitive rates, and lower mortgage insurance costs than FHA. The catch is that they only work in eligible rural areas and within household income limits. Once you clear those two gates, USDA can be the best loan program available for moderate-income buyers in qualifying areas.
This page covers how USDA manual underwriting actually works: what the GUS system returns, what triggers a manual review, what ratios USDA uses, what compensating factors qualify for waivers, and what the credit and seasoning rules look like. If you're a borrower with a Refer finding, a realtor working with a USDA buyer, or another LO trying to navigate USDA's specific rules, this is for you.
A note on who wrote this
I'm Nick Peters (NMLS #1119524), a licensed loan originator. I've written my share of USDA loans and the rules below come from USDA Handbook 1-3555 (the SFHGLP Handbook), specifically Chapter 10 (Credit Analysis) and Chapter 11 (Ratio Analysis). Your specific file is evaluated by your lender's underwriter against those rules plus their own overlays. More on overlays below.
Two gates first. Income limits and property location.
Before USDA underwriting matters at all, the file has to clear two USDA-specific eligibility tests that don't apply to FHA, VA, or conventional loans.
The household income limit
USDA Guaranteed loans are designed for low- and moderate-income households. The Agency caps household income at 115% of the area median income (AMI) for the county where the property is located, adjusted for household size. This isn't borrower income. It's total household income, including non-borrowing adults, certain dependents, and various income sources that don't count for repayment.
Income limits vary by location and household size, typically ranging from about $112,450 for 1-4 member households to $148,450 for 5-8 member households in many areas. Higher-cost counties have higher limits. The official income limits are published on the USDA Rural Development eligibility website.
If household income exceeds the limit, USDA isn't an option. Period. There's no waiver process for income. The file moves to FHA, VA, or conventional.
The property location requirement
The property must be in a USDA-eligible rural area. "Rural" is defined more generously than most people expect. Many small towns, suburbs of mid-sized cities, and even some areas on the outer edges of major metros qualify. Eligibility is checked through the USDA Rural Development property eligibility map, which is publicly available.
If the property doesn't qualify, USDA isn't an option for that property. The borrower can use USDA on a different property in an eligible area, or use FHA/VA/conventional on the current property.
First things first. What is USDA manual underwriting?
When you apply for a USDA loan, your lender runs your file through the Guaranteed Underwriting System (GUS). This is USDA's own automated underwriting system, similar in concept to Fannie Mae's Desktop Underwriter (DU) or Freddie Mac's Loan Product Advisor (LPA), but USDA-specific. GUS returns one of four findings:
- •Accept (or Accept Full Documentation): The system can approve the file with reduced documentation. This is what most clean USDA files get.
- •Refer: The system can't approve automatically. The loan is eligible for USDA financing, but a human underwriter has to evaluate it manually.
- •Refer with Caution: Similar to Refer but with elevated risk indicators. Manual underwriting is required, with extra scrutiny.
- •Ineligible: Something fundamental disqualifies the file (income exceeds the limit, property isn't eligible, CAIVRS hit, etc.).
A "manual underwrite" on a USDA loan is when a human underwriter makes the decision against the explicit rules in HB-1-3555, rather than deferring to GUS. The underwriter still uses GUS to enter the data, but the approval decision rests on their analysis, not on GUS's automated finding.
Two paths to a manual. Which one are you on?
There are two main ways your USDA file ends up being manually underwritten.
Path 1. GUS returned "Refer" or "Refer with Caution"
GUS couldn't get comfortable with something in your profile. Common triggers:
- •Credit score below 640. GUS rarely returns Accept for files with a representative credit score below 640. Below 640 essentially guarantees a manual.
- •DTI above 41%. Above the 41% Total Debt threshold, GUS often refers the file even with otherwise strong credit.
- •PITI above 29%. USDA uses 29% as the standard PITI threshold. Above that, the file commonly refers.
- •Recent derogatory credit. Late payments, recent collections, or unresolved disputes.
- •Limited credit history or thin file. Few open tradelines or short tradeline history.
- •Self-employment income with year-over-year decline.
- •Income or employment patterns GUS can't validate automatically.
In this case, GUS isn't saying "no." It's saying "we can't automatically say yes, a human needs to look at this."
For self-employed borrowers specifically, the year-over-year income decline trigger is one of the most common reasons USDA files end up here. See our self-employed documentation deep dive for how qualifying income gets calculated and what to bring to the file.
Path 2. GUS returned "Accept" but a downgrade is required
Less common but it happens. The most frequent reason for downgrade:
- •The lender becomes aware of derogatory or contradictory information that wasn't reflected in the data submitted to GUS. Examples: an undisclosed debt, an undisclosed late payment, evidence of a Federal judgment, or any other adverse information that would have changed the GUS finding if it had been entered.
When a downgrade is required, the file goes to manual underwriting regardless of what GUS originally returned.
The USDA underwriter's framework
On a USDA manual file, the underwriter is evaluating five categories. Each one has its own rules in HB-1-3555.
- •The two eligibility gates. Income limit and property location.
- •Acceptable credit. Payment history, with extra weight on the most recent 12 months. Significant derogatory credit triggers extra requirements.
- •Effective income. Stability, documentation, 2-year employment history (with exceptions).
- •Debt ratios. PITI at 29% standard / 34% maximum with waiver. Total Debt at 41% standard / 44% maximum with waiver.
- •Compensating factors. Required for ratio waivers above 29/41.
Plus the wild card: lender overlays. Many lenders impose stricter rules than USDA's baseline (e.g. 660 minimum credit score, 41% DTI cap regardless of waiver eligibility). One lender denying a USDA file doesn't mean every lender will.
Acceptable credit. What USDA actually requires.
USDA's credit standards mostly mirror what you'd expect from a government loan, but with some specific quirks worth understanding.
Credit scores and the 640 line
USDA does not technically require a minimum credit score at the agency level. However, in practice:
- •Score of 640+: GUS may render an Accept with no special treatment. This is the score that essentially every USDA borrower targets.
- •Score of 580-639: GUS will refer the file. Manual underwriting required, with what HB-1-3555 calls "a cautious level of underwriting." Approvable but tight.
- •Score below 580: Most lender overlays disallow at this level. Even if a lender will consider, the file is heavily scrutinized.
- •No credit score (non-traditional credit): USDA allows non-traditional credit (rent, utilities, insurance) to substitute for traditional tradelines. This is unusual and powerful for borrowers with no credit history at all.
The 640 score is the most important threshold. Below it, manual underwriting is essentially guaranteed and approval becomes meaningfully harder.
Recent payment history (last 12 months)
The handbook requires the underwriter to scrutinize the last 12 months for any pattern of late payments. Specifically:
- •Mortgage or rent payments: One 30-day late within the previous 12 months is "significant derogatory credit" and triggers extra requirements. This is stricter than FHA's allowance for one mortgage late.
- •Other accounts: Patterns of late payments across multiple accounts are problematic. Isolated incidents with explanations may be acceptable.
Verification of rent (VOR)
USDA requires verification of rent for ratio waiver requests on manual files (more on waivers below). Acceptable documentation:
- •Verification of Rent form completed by the landlord, showing actual payment due and last 12 months of payment history with no more than one 30-day late.
- •12 months of canceled checks or 12 months of bank statements showing rent payments to the landlord.
- •For rent paid to a family member or interested party, only canceled checks, money orders, or electronic payment confirmations work. A landlord letter alone is not enough.
Collections and charge-offs
USDA's specific rules on collections:
- •Collections are not required to be paid off as a condition of the guarantee.
- •However, if the cumulative balance of all non-medical collection accounts equals or exceeds $2,000, the lender must take action: either pay the balance in full at or before closing, OR include 5% of the cumulative balance as a monthly payment in the DTI calculation, OR document a documented payment arrangement.
- •Medical collections are excluded from the cumulative balance calculation.
- •Charge-offs are similarly not required to be paid, but they're factored into the credit analysis.
Disputed accounts
- •Non-derogatory disputed accounts: Generally don't require special treatment.
- •Derogatory disputed accounts: The dispute often must be resolved or the underwriter must analyze the impact on the file's creditworthiness. The specifics depend on whether the file is GUS Accept, Refer, or manually underwritten.
Bankruptcy and foreclosure seasoning
For a side-by-side comparison of how USDA, FHA, VA, and conventional handle bankruptcy, foreclosure, deed-in-lieu, and short sale wait periods, see our derogatory credit wait periods guide. The USDA-specific table:
| Event | USDA waiting period |
|---|---|
| Chapter 7 BK (discharged) | 3 years from discharge (some flexibility for files discharged 12-36 months ago with credit exception) |
| Chapter 13 BK (active) | 12+ months of on-time trustee payments + court approval |
| Chapter 13 BK (discharged within 12 months) | Credit exception required |
| Chapter 13 BK (discharged 12+ months ago) | No credit exception required |
| Foreclosure | 3 years from completion |
| Deed-in-lieu / short sale | 3 years from completion |
| Federal judgments | Must be paid in full or have a written repayment agreement with 3+ timely payments before closing |
| Federal tax liens | Must be paid in full, or in a documented payment plan, or formally subordinated |
USDA's Chapter 13 path is similar to FHA's and VA's. Most loan programs won't touch a borrower in active Chapter 13. USDA will, with court approval.
CAIVRS
USDA loans require a clear CAIVRS (Credit Alert Verification Reporting System) check. CAIVRS is a federal database of delinquent or defaulted federal debt. A CAIVRS hit, often from a defaulted student loan or prior foreclosure on a federal-backed mortgage, must be resolved before closing. This is the same requirement as FHA and VA loans.
The ratios. PITI 29/34 and Total Debt 41/44.
USDA's ratio framework is more rigid than FHA's tiered grid or VA's 41% soft cap. The structure matters.
Standard ratio thresholds
| Ratio | Standard maximum | Maximum with waiver |
|---|---|---|
| PITI (Housing) | 29% | 34% (purchase only; refinances follow different rules) |
| Total Debt | 41% | 44% |
For a GUS Accept file, no waiver is needed. The PITI sits at or below 29% and the Total Debt at or below 41%, and the file moves through.
For a Refer, Refer with Caution, or manually underwritten file, ratios above 29% PITI or 41% Total Debt require a documented debt ratio waiver with one or more compensating factors. This is the USDA-specific equivalent of FHA's compensating factor grid and VA's residual income test.
| Ratio Range | Status / Waiver Need | Conditions for Waiver | GUS Outcome |
|---|---|---|---|
| PITI ≤ 29% AND Total Debt ≤ 41% | Within StandardNone required | No waiver required | GUS may Accept |
| PITI 29.01% to 34%, Total Debt ≤ 44% | Waiver RequiredUp to 34% PITI ceiling | 680+ credit score plus documented compensating factor | Manual UW with waiver request |
| Total Debt 41.01% to 44%, PITI ≤ 34% | Waiver RequiredUp to 44% Total Debt ceiling | 680+ credit score plus documented compensating factor | Manual UW with waiver request |
| PITI > 34% OR Total Debt > 44% | IneligibleNo waiver available | Not approvable on purchase transactions | Ineligible |
Refinance transactions follow different ratio rules. See the full USDA handbook (Chapter 11.3.B) for refinance guidance.
The PITI ratio specifically
The PITI ratio is the proposed monthly housing expense (Principal, Interest, Taxes, Insurance, plus HOA fees if applicable) divided by the borrower's qualifying repayment income. Standard maximum is 29%. The waiver ceiling is 34%, and there is no waiver above 34% on purchase transactions.
Per USDA Procedure Notice 621 (effective August 5, 2024), the PITI waiver ceiling was raised from 32% to 34%. A lot of older USDA content online still references 32%; the current ceiling is 34%.
The Total Debt ratio specifically
The Total Debt ratio is the proposed PITI plus all monthly recurring debts (credit cards, auto loans, student loans, child support, etc.) divided by qualifying repayment income. Standard maximum is 41%. Waiver ceiling is 44%. To run scenarios at different price points and see how your DTI moves, the calculator will get you close.
When ratios exceed the waiver ceiling
If the file's PITI exceeds 34% or Total Debt exceeds 44%, USDA does not allow a waiver on purchase transactions. The file is ineligible at those ratios. The borrower's options are:
- •Reduce the loan amount (smaller house or larger down payment beyond the 0% required)
- •Pay down monthly debts to reduce the Total Debt ratio
- •Increase qualifying income
- •Switch to a different loan program (FHA allows up to 50%/57% with comp factors; VA has no hard cap)
Debt ratio waivers and compensating factors
For a manual file with ratios above 29/41, the lender requests Agency concurrence with a debt ratio waiver, supported by one or more compensating factors. The Agency's issuance of the Conditional Commitment for Loan Note Guarantee represents approval of the waiver.
Waiver eligibility conditions
Per HB-1-3555, Chapter 11.3, debt ratio waivers may be granted on purchase transactions if all the following conditions are met:
- •Either: PITI ratio is greater than 29% but ≤ 34%, accompanied by Total Debt ratio ≤ 44%, OR Total Debt ratio is greater than 41% but ≤ 44%, accompanied by PITI ≤ 34%
- •The credit score of all applicants is 680 or greater
- •At least one acceptable compensating factor is identified and documented
The 680 credit score requirement is the gate that catches a lot of files. A borrower with a 660 score and ratios at 32% PITI / 43% Total Debt looks like they should qualify with a waiver, but they don't, because 680 is the floor for the waiver itself.
USDA-recognized compensating factors
USDA Chapter 11.3 lists specific compensating factors. Each one requires documentation. Click any factor for the full definition and documentation requirements.
Why USDA manual underwrites fail. The patterns I see.
USDA manual files fail for a mix of program-specific and general reasons. The patterns I see most often:
1. The wrong lender.
A surprising number of large lenders don't actively support USDA. They'll take the file, run GUS, and if it comes back Refer, they'll deny without working it manually. If your lender hesitates when you ask whether they handle USDA manuals, find a lender that does these routinely.
2. Surprise on the income limit.
A file gets pre-approved on USDA, then household income comes in over the limit when all sources are properly counted. This usually happens when an LO doesn't count overtime, bonus income, or non-borrower household income correctly during pre-approval. The fix is running the exact USDA income limit calculation up front, including all required income sources. Our pre-qualification tool is one way to sanity-check the numbers before you go further.
3. The 680 credit score gate on waivers.
A borrower has clean files and reasonable ratios at 31% PITI / 43% Total Debt, but their credit score is 660. They look like they should qualify with a waiver. They don't, because 680 is the floor for the waiver itself. The fix is to either pay down debts to bring ratios under 29/41 (avoiding the waiver entirely), bump credit score to 680, or move to a different loan program.
4. CAIVRS hits not caught early.
A defaulted student loan or prior FHA foreclosure shows up on CAIVRS late in the process. By then the borrower has paid for an appraisal and is under contract. The fix is pulling CAIVRS at pre-approval, which most LOs do but not all.
5. Property eligibility surprises.
The borrower finds a house they love, then it turns out the property isn't in a USDA-eligible area. Less common in established rural counties, more common near the edges of growing metros where the eligible area is shrinking. Always verify the specific address before making an offer.
6. Misunderstanding the manufactured housing rules.
USDA allows manufactured homes but with restrictions (must be new, not pre-owned, must meet specific HUD code requirements, etc.). Borrowers who fall in love with an older manufactured home find out late that it doesn't qualify.
In my experience, well-prepared USDA manual files close at roughly the same rate as USDA Accept files. The mythology that "USDA is a slow program" is mostly about lenders who don't do USDA volume, not about borrowers who don't qualify.
Frequently asked questions
I got a Refer. Is my USDA loan dead?
No. Refer means a human needs to look at your file. It doesn't mean denied. In my experience, USDA Refer files close at high rates assuming the file is genuinely clean (clean credit, ratios reasonable, eligibility gates cleared) and the lender does USDA manual underwriting routinely.
My credit score is 620. Can I still get a USDA loan?
Possibly. USDA itself doesn't set a minimum credit score, but most lenders set overlays at 640+. Some lenders work with scores down to 580 or 600 with the right file structure. If your score is below 640, expect manual underwriting and expect not every lender to approve. Find a lender that works with manual USDA files specifically.
My DTI is at 45%. Can I get a waiver?
No. USDA's hard ceiling for the Total Debt ratio is 44% on manual purchase transactions, and that's only with a 680+ credit score plus a documented compensating factor. At 45%, USDA isn't an option without paying down debts or increasing income. FHA might allow up to 50% or 57% with comp factors, depending on score. VA has no hard cap. If you're stuck above 44%, talk to your LO about switching programs.
I'm in an active Chapter 13. Can I still get a USDA loan?
Yes, with court approval and 12+ months of on-time trustee payments. Same path as FHA and VA. Your monthly trustee payment becomes part of your DTI calculation, which usually pushes the file above 41% Total Debt and into ratio waiver territory. Comp factors and a 680+ credit score become important.
My income just went up. Am I still under the USDA limit?
Income limits are based on prior 12 months of household income, not just borrower repayment income. They include overtime, bonus, and (in many cases) income of non-borrowing adults in the household. If your income is close to the limit, your LO needs to run the exact income limit calculation with all required sources before pre-approval. Files have died on this when surprise income pushed the household over the limit.
Will I have to pay PMI on a USDA loan?
USDA loans charge an upfront guarantee fee (currently 1% of the loan amount, financed into the loan) and an annual fee (currently 0.35% of the loan balance, paid monthly). These are USDA's equivalent of mortgage insurance. They are typically lower than FHA's MIP, especially over the life of the loan, because USDA's annual fee adjusts with the declining loan balance and there's no permanent MIP requirement.
Can I refinance from FHA to USDA later?
USDA's refinance program (Streamlined Assist or Standard Streamlined refinance) is for existing USDA borrowers. To go from FHA to USDA you'd need a fresh USDA purchase or a non-streamlined refinance, and you'd need to meet USDA's eligibility gates (income and property) at that time. Most borrowers stay with FHA or refinance to conventional rather than switching to USDA.
Can my non-occupant co-borrower help me qualify for USDA?
USDA does not allow non-occupant co-borrowers. All borrowers on a USDA loan must occupy the property as their primary residence. This is different from FHA, which allows non-occupant co-borrowers under certain conditions.
Does USDA allow gift funds?
Yes. Gift funds can be used for closing costs and prepaid items. Since USDA is a 0% down program, gift funds for down payment aren't typically needed. Gift funds for reserves used as a comp factor are not eligible (reserves must be from the borrower's own funds). For the full breakdown of who can give, what the gift letter has to say, and how the money has to move from donor to closing, see the Gift Funds Deep Dive.
A final note. What this page is and isn't.
This page is a summary of what HB-1-3555 says about USDA manual underwriting, organized in the same structure as the FHA and VA Manual Underwriting Deep Dives. It is not:
- •Legal or financial advice. Your specific situation requires a specific evaluation.
- •A substitute for your LO or underwriter. Lender overlays vary on USDA. This page covers USDA's baseline.
- •A guarantee of approval. Even a perfectly structured USDA manual file can be denied for reasons not covered here.
If you're working through a USDA scenario and want to talk through whether your file has a path, I'm reachable. Bring your numbers, your address, and a clear picture of what GUS returned. We'll work through it.
Working through a USDA scenario?
Call me at (615) 656-0737 or email Nick.Peters@rate.com.
USDA is one of the most under-used loan programs in the country. If you qualify, it's often the best deal you'll find.
Sources: USDA Single Family Housing Guaranteed Loan Program Handbook (HB-1-3555), Chapter 10 (Credit Analysis) and Chapter 11 (Ratio Analysis), current as of 2026; USDA HB-1-3555, Attachment 10-A (Credit Matrix); USDA Procedure Notice 621 (August 5, 2024) revising PITI ratio waiver ceiling to 34%; 7 CFR Part 3555 (Single Family Housing Guaranteed Loan Program regulations); author's 12+ years of field experience originating USDA Guaranteed loans.