Desktop Underwriter® (DU®) is Fannie Mae’s automated mortgage loan underwriting system. Fannie Mae describes DU as a powerful tool to help lenders assess credit risk and establish a loan’s eligibility for sale and delivery to Fannie Mae, as well as a way to better serve the 9 out of 10 homebuyers who prefer a digital mortgage process.
At the end of 2025, some changes were announced for DU®. It will no longer require a minimum third-party credit score and does not use credit scores to assess credit risk. It will use a proprietary credit risk assessment to determine a minimum credit risk threshold when evaluating loan eligibility for sale to Fannie Mae.
Previously DU® used a minimum credit score to determine whether a borrower was eligible for a credit risk assessment, but they are replacing that requirement stating “it does not affect our ability to assess credit risk and ensures that the DU risk recommendation is agnostic of third-party credit scores”.
For over 25 years, DU has used its proprietary credit risk models to evaluate mortgage delinquency risk, which are more comprehensive than a credit score. These models evaluate details of the borrower’s credit history and were the first to include trended credit data and on-time rent payment history as part of DU’s overall risk assessment.
Jason Cook, Eastern Shore Manager with Embrace Home Loans said this about the recent change, “Since automated mortgage underwriting must account for a broad set of factors, such as borrower reserves, debt levels, property characteristics, and planned use for the property—we are hopeful this change to use an updated proprietary risk assessment model will help more buyers receive an “Approve/Eligible” recommendation.”
Fannie Mae detailed what this will mean for investors, lenders and borrowers:
• They anticipate this change will have a negligible impact on the number of loan applications receiving an Approve/Eligible recommendation.
• DU risk recommendations will not change based on the third-party credit scores that lenders may use.
• Loans sold to Fannie Mae must continue to include a third-party credit score per the Selling Guide.
Lauren Bunting is a Broker with Keller Williams Realty of Delmarva in Ocean City, Maryland.