New Desktop Underwriter User Interface
The redesigned Desktop Underwriter® (DU®)/Desktop Originator®(DO®) user interfaces (UIs) feature an updated look and feel and support the redesigned Uniform Residential Loan Application (URLA) (Fannie Mae Form 1003). Starting Jan. 1, 2021, all Fannie Mae customers and sponsored mortgage brokers can start to submit casefiles to DU/DO through the new UIs.
The new UIs will only accept and access submissions of loans in the new DU Specification MISMO V. 3.4 (DU Spec). Any loans in the 1003 3.2 or MISMO V. 2.3.1 formats should be accessed and submitted in the classic version of DU/DO (accessible on the DU webpage).
All new loans dated on or after March 1, 2021, must be submitted using the redesigned URLA through the new UIs. Users may continue to use the classic DU/DO UIs for existing casefiles dated prior to March 1, 2021, until they are retired on March 1, 2022.