Fannie Mae Guidelines: Debt Verification in DU Underwriting

How DU Handles Your Debt Information

Desktop Underwriter takes a specific approach to analyzing your debts that differs from what you might expect. The system calculates your debt-to-income ratio using the liability information your lender enters on your loan application, not the debts that appear on your credit report.

This creates an important distinction. Your credit report might show a credit card with a $5,000 balance and $150 minimum payment, but if your lender enters $4,800 and $140 on your application, DU uses the application figures for your debt-to-income calculation.

The Reasonableness Test Process

DU runs automatic checks comparing your application data against your credit report. If the balances or monthly payments on your application are lower than what appears on your credit report by more than specific tolerances, the system flags these discrepancies.

Your lender must then justify any differences that exceed these tolerances. They need to update your application with either verified information from your credit report or independent documentation that supports the lower figures.

Say your credit report shows a car loan with a $450 monthly payment, but your lender enters $400 on your application. If this difference exceeds DU's tolerance levels, your lender must provide documentation explaining why the payment is actually $400 — perhaps you've made extra principal payments that reduced the required monthly amount.

Auto-Populate Feature and Required Documents

Lenders can use DU's auto-populate feature to automatically copy liability information from your credit report to your loan application. This streamlines the process but comes with specific rules about what transfers and what doesn't.

When auto-populate runs before manual entry, it copies all open accounts from your credit report to your application. Closed accounts don't transfer automatically, even if they have outstanding balances. Collection accounts also don't transfer automatically.

If your lender uses auto-populate after manually entering some debts, DU attempts to match existing entries with credit report accounts using account names and numbers. Any open accounts from your credit report that weren't manually entered get added to your application.

You still need to provide documentation for any debts that don't appear on your credit report. Monthly housing expenses like property taxes, homeowners insurance, and HOA fees must be disclosed on your application regardless of whether they show up on your credit report.

Why These Rules Exist

Fannie Mae requires this verification process because credit reports can contain outdated or inaccurate information. A credit card might show a $200 minimum payment on your report, but you might have paid down the balance significantly, reducing your actual required payment to $50.

The reasonableness test ensures your debt-to-income ratio reflects your actual financial obligations, not potentially stale credit report data. This protects both you and the lender by creating a more accurate picture of your ability to repay the mortgage.

The auto-populate feature reduces data entry errors while maintaining accuracy. By automatically matching account information, it minimizes the chance that your lender will miss a debt or enter incorrect payment amounts.

Common Issues and Complications

Several situations can complicate the liability assessment process. If you've recently paid off a debt, it might still appear on your credit report with an outstanding balance. Your lender needs documentation showing the payoff to justify excluding it from your debt-to-income calculation.

Closed accounts with remaining balances create another challenge. These don't auto-populate, so your lender must manually identify and enter them. Missing a closed account with a monthly payment requirement can result in an inaccurate debt-to-income ratio.

Collection accounts require careful handling. They don't auto-populate, and whether they count toward your debt-to-income ratio depends on specific Fannie Mae guidelines found in [[B3-6-05]]. Your lender must evaluate each collection account individually.

Duplicate accounts can occur when auto-populate runs after manual entry. If the matching process creates duplicates, your lender can delete the extras to avoid double-counting your debts.

Joint accounts present verification challenges. Your credit report might show the full payment amount for a joint credit card, but if your ex-spouse is contractually responsible for the payments and has been making them consistently, your lender might be able to exclude this debt with proper documentation.

Documentation Requirements

Your lender needs specific documentation to support any discrepancies between your application and credit report. For reduced payment amounts, they might require recent statements showing lower minimum payments due to principal reductions or payment modifications.

For paid-off debts, they need payoff letters or final statements showing zero balances. For debts not appearing on your credit report, they need statements or other documentation proving the monthly payment amounts.

If you're disputing items on your credit report, your lender needs documentation of the dispute process and any resolution letters from creditors or credit bureaus.

References

For the official guidelines, see B3-6-08: DU: Requirements for Liability Assessment in the Fannie Mae Selling Guide.