Uniform Loan Delivery Dataset (ULDD)

The Uniform Loan Delivery Dataset (ULDD) is the common set of data elements required by Fannie Mae and Freddie Mac for single-family loan deliveries.

Related Links

Related Applications


A New Way for Application Users to Access Help Exclamation Point

The Help Center available within our Fannie Mae applications has been retired and replaced by our new Technology Support page. This new page describes how to contact us via phone or web chat, and includes a link to search for help online. We hope this will make it easier for you to seek assistance or information regarding your Fannie Mae technology application(s).

Begin Your ULDD Phase 2 Transition! To help lenders transition to ULDD Phase 2, the edits associated with the Phase 2 data have been Informational since the launch of the new Loan Delivery application. The severity of these edits will turn Warning as of April 1, 2016, prior to turning Fatal on June 27, 2016 (mandate). Certain other edits will also turn to Fatal effective Friday, April 1, 2016. Reference the Loan Delivery Business Rules Dictionary for a list of these edits.

ULDD Quick Guides

Several of these Quick Guides have been updated for ULDD Phase 2. Refer to Appendix D for Phase 2 Data requirements.

Help & Training

Technical Implementation Resources

Important Updates

What's New

  • Reminder of Appendix D Updates

    Fannie Mae’s Appendix D was recently updated with changes to conditionality, enumerations, and implementation notes. Review the latest version (V2.0.5) to assist in delivering ULDD Phase 2 data requirements to us by June 27, 2016.

  • New and Modified Edits in Loan Delivery as of March 7

    Reference the Change Notification for details on the upcoming edit changes in Loan Delivery to support the DU V. 9.3 release and HomeReady deliveries.

Frequently Asked Questions

Joint ULDDS Implementation

Recent Newsletters

  • Quarterly Compass

    Provides information on Fannie Mae initiatives and upcoming milestones, and what lenders need to know to successfully navigate the changes ahead.