Fannie Mae Selling Guide B3-2-10 — Accuracy of DU Data, DU Tolerances, and Errors in the Credit Report

Fannie Mae Selling Guide B3-2-10 — Accuracy of DU Data, DU Tolerances, and Errors in the Credit Report

B3-2-10, Accuracy of DU Data, DU Tolerances, and Errors in the Credit Report (12/04/2019) Introduction This topic contains information on the accuracy of DU data, DU tolerances, and errors in the credit report, including: Ensuring DU Data and Delivery Information Accuracy DU Tolerances for Refinance Transaction Loan Amount Changes Other Errors in the Credit Data Non-Applicant Debts/Accounts Ensuring DU Data and Delivery Information Accuracy The data submitted to DU must reflect the loan as it was closed, including occupancy type, product type, amortization, loan term, property type, loan purpose, sales price, and appraised value. Verification documents must be reviewed and the verified values compared to the data submitted to DU. The terms of the closed loan must match the terms of the final loan casefile submission in DU or fall within the tolerances listed in the following table: Data Attribute and Description Trigger Action Required • Interest rate increase • Discrepancies between the credit report payments and balances and those listed on the online loan application, including the presence of debt that is on the credit report but not on the application • Additional debt(s) disclosed by the borrower or identified by the lender during the mortgage process • Verified income is less than the income on the loan application submitted to DU DU loans — the result of these changes causes the DTI ratio recalculated by the lender to • now exceed 45%, or • increase by 3 percentage points or more (if the recalculated DTI ratio is 50% or less) * See resubmission examples below. Loan casefile must be resubmitted to DU Published May 6, 2026 296 Data Attribute and Description Trigger Action Required Interest rate on fixed-rate and adjustable-rate mortgages Interest rate decreases, not as the result of a permanent interest rate buydown No resubmission required Interest rate on fixed-rate and adjustable-rate mortgages Interest rate decreases as the result of a permanent interest rate buydown Loan casefile must be resubmitted to DU Verified income used to qualify the borrower for loans subject to income limits; for example, as with HomeReady loans. Income is greater than the loan application indicates Loan casefile must be resubmitted to DU Assets — Funds Required to Close The actual amount of assets required to close the transaction exceeds the amount of “Funds Required to Close” per the DU Underwriting Findings report If the lender has documented sufficient liquid assets to cover the actual amount of assets required to close the transaction, no resubmission required Otherwise, loan casefile must be resubmitted to DU Assets — Reserves Required to be Verified Due to changes in the actual amount of assets required to close the transaction, the verified amount of reserves is less than the “Reserves Required to be Verified” per the DU Underwriting Findings report If the lender has documented reserves that equal at least 90% of the Reserves Required to be Verified per the DU Underwriting Findings report, no resubmission required Otherwise, loan casefile must be resubmitted to DU Loan amount tolerances for refinance transactions (See below) *Resubmission examples based on DTI triggers Published May 6, 2026 297 Original DTI Recalculated DTI Resubmission Required 35 40 Yes 44 46 Yes 46 48 No 46 50 Yes DU Tolerances for Refinance Transaction Loan Amount Changes For refinance transactions, Fannie Mae allows the following tolerances to the loan amount: The loan amount may increase $500 or up to 1% of the loan amount, whichever is less. The loan amount may decrease 5% of the loan amount. The loan amount tolerances are permitted provided the new LTV/CLTV does not result in changes to the amount of required mortgage insurance coverage, different loan-level price adjustments, or changes to loan eligibility. For example, if a loan casefile is submitted with a loan amount of $100,000 and the appraised value is $120,000 (which equals 83.3% LTV), the actual loan amount can go up to $100,500 (which equals 83.75% LTV) without requiring resubmission. On the other hand, if the original loan amount was $108,000 (90% LTV), an increase without resubmission is not permitted because it would result in an LTV of 91%. The higher LTV requires different mortgage insurance coverage, and may result in the loan not being eligible for delivery. The loan amount tolerance does not apply to Fannie Mae’s requirements regarding the amount of cash back to the borrower on a limited cash-out refinance transaction. (See B2-1.3-02, Limited Cash-Out Refinance Transactions.) Other Errors in the Credit Data In some cases, errors are the result of reporting errors by the credit agency or individual creditors. If the printed credit report contains derogatory information, and DU does not recognize or consider the derogatory information and does not reflect the derogatory information in the DU Underwriting Findings report, the lender must take action when information not considered by DU would result in a recommendation other than that returned by DU. Published May 6, 2026 298 For example, if a borrower’s credit report indicates that the borrower had a previous foreclosure, but the DU Underwriting Findings report does not reference the foreclosure, a reporting or data transfer error may have occurred, thus preventing DU from considering the foreclosure in its analysis of the loan. The lender must take action to ensure that the information is considered in the risk analysis. Non-Applicant Debts/Accounts In a small number of casefiles, credit reports may include accounts identified as possible non-applicant accounts (or with another similar notation). DU will include these tradelines in the credit risk assessment, and will also include the accounts in the DTI ratio when provided on the loan application. See B3-6-05, Monthly Debt Obligations for the requirements. Recent Related Announcements The table below provides references to recently issued Announcements that are related to this topic. Announcements Issue Date Announcement SEL-2019-09 December 04, 2019 Announcement SEL-2019-07 August 07, 2019

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