Applications & Technology

SMDU UI Payment Deferral Options User Guide

This user guide provides step-by-step instructions on using the Servicing Management Default Underwriter™ User Interface (SMDU™ UI) to perform a variety of actions related to payment deferral, disaster payment deferral and COVID-19 payment deferral workouts.  These actions include:

  • Submitting a mortgage loan to SMDU for evaluation
  • Requesting Fannie Mae review
  • Reporting the workout to Fannie Mae 


Download User Guide

To access these user guides, you must be registered and have the appropriate username and password credentials for accessing the SMDU UI.

If you are not registered to access the SMDU UI, please refer to the Fannie Mae SMDU UI Technology Manager for Administrators Job Aid for additional information.