Qualification & Credit

The four pillars of mortgage qualification

Lenders evaluate four factors when deciding whether to approve a mortgage: credit, income, assets, and the property itself. For most loans, these factors are evaluated together by an automated underwriting system (AUS) — Fannie Mae's Desktop Underwriter (DU) or Freddie Mac's Loan Product Advisor (LPA) for conventional, and FHA's TOTAL Scorecard or USDA's GUS for government programs. The AUS weighs all factors together, which means strength in one area can sometimes offset weakness in another. Understanding how each factor works helps you present the strongest possible application.

Credit score

Credit score minimums vary by program, lender, and AUS findings. The figures below reflect common lender practice — individual lenders may set higher overlays, and AUS findings can sometimes support approvals outside these ranges:

• Conventional: Many lenders require 620 as a minimum, though some set overlays higher. Pricing is risk-based — loan-level price adjustments (LLPAs) increase the effective cost as scores decrease, with meaningful pricing differences between score tiers.
• FHA: 580 for 3.5% down; 500–579 with 10% down per FHA guidelines. Individual lenders often impose overlays requiring 580, 600, or 620 minimum.
• VA: The VA sets no minimum credit score. Most lenders require 580–620 as an overlay. VA's residual income requirement provides an additional qualification layer beyond credit score.
• USDA: USDA does not set a universal minimum score for the Guaranteed Loan Program. GUS behavior and lender overlays typically result in a practical minimum around 640 for streamlined processing, but lower scores may qualify through manual underwriting.
• Jumbo: Requirements vary significantly by lender and loan size. Many lenders require 700–720 or higher, though portfolio lenders may have different standards.

Lenders use the middle score of the three bureaus for the primary borrower. With two borrowers, they use the lower of the two middle scores.

Debt-to-income ratio (DTI)

DTI is the percentage of your gross monthly income that goes toward debt payments. Lenders calculate two ratios:

• Front-end DTI (housing ratio): The proposed housing payment (PITI — principal, interest, taxes, insurance, plus HOA if applicable) divided by gross income. Some programs reference front-end benchmarks (USDA references 29%; FHA references 31%), but AUS findings often approve loans above these benchmarks when the overall file is strong.
• Back-end DTI (total DTI): All monthly debt obligations (housing plus car loans, student loans, credit cards, installment debt) divided by gross income. AUS-driven limits vary by program and file strength — conventional DU/LPA can approve higher DTI when compensating factors are present; FHA TOTAL Scorecard can approve up to the mid-50s in some cases.

DTI limits are not fixed ceilings — they are guidelines that the AUS evaluates in context. A borrower with a 50% DTI and a 780 credit score, 20% down, and six months of reserves may receive an AUS approval that a borrower with the same DTI and a 640 score would not.

Income documentation

Lenders want to see stable, consistent income with a reasonable expectation of continuance. The documentation required depends on income type, employment structure, and AUS findings — not every borrower needs the same stack of documents:

• W-2 salaried employees: Typically pay stubs and W-2s. Tax returns may or may not be required depending on the AUS finding and whether the borrower has other income sources.
• Self-employed: Generally two years of personal and business tax returns, with income averaged and adjusted for business expenses. The prior-W-2 exception may allow one year of returns in some cases. Bank statement programs are an alternative for borrowers whose tax returns don't reflect actual cash flow.
• Commission, bonus, and overtime: Variable income typically requires a history of receipt — often two years — and is averaged. The specific history requirement depends on the program and AUS findings; some AUS approvals may accept less history with strong compensating factors.
• Rental income: Documented via Schedule E on tax returns for existing properties; a market rent appraisal for new acquisitions. Lenders typically count 75% of gross rent, though the exact treatment varies by program and AUS.
• Social Security and pension: Award letters and bank statements. Non-taxable income may be grossed up — the gross-up percentage varies by program (FHA allows 25%; conventional treatment depends on AUS). Not all non-taxable income qualifies for gross-up; verify with Morgan Hardy for your specific income type.

Improving your qualification

If you're not quite ready to qualify, there are concrete steps that can improve your position:

• Pay down credit card balances — reducing utilization below 30% (ideally below 10%) can improve your score quickly
• Don't open new credit accounts in the months before applying
• Avoid large deposits without a paper trail (lenders must source all deposits)
• Pay off or pay down installment loans to reduce DTI
• Correct errors on your credit report before applying
• Document all income sources — part-time work, rental income, and other income streams can help DTI if properly documented