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CoreLogic Is an Authorized Report Supplier

Fannie Mae's Day 1 Certainty ProgramTM is designed to provide greater transparency and create a more efficient mortgage origination process for you. The CoreLogic 4506-T Direct product is now integrated into the DU validation service component of Fannie Mae’s Day 1 Certainty program. We are also an authorized report distributor for The Work Number, supporting additional elements of the Day 1 Certainty program. 

When income data is validated through the DU validation service using data from us, Fannie Mae will provide Day 1 Certainty relief from reps and warrants on validated loan components.

Day 1 Certainty Resources

This site is your one-stop resource for the latest information regarding CoreLogic participation in the Day 1 Certainty program. It is updated regularly with:

  • Important notifications
  • Supporting documents
  • LOS Support for CoreLogic Day 1 Certainty authorized products

Day 1 Certainty Validation Checklist

Is Your Business Ready for Day 1 Certainty?


Fannie Mae Day 1 Certainty Datasheet

Learn About CoreLogic Offerings for Day 1 Certainty.


LOS and Reseller Support for Day 1 Certainty

The following Loan Origination Systems support CoreLogic 4506-T Direct via the Day 1 Certainty Program:
  • CoreLogic LoanCenter
  • Ellie Mae Network
  • Mortgage Builder
  • Savana Studio
  • PCLender
  • Byte Software
The following Resellers support CoreLogic 4506-T Direct via the Day 1 Certainty Program:

Ellie Mae Total Quality Loan (TQL)