DU Validation Service

The Desktop Underwriter (DU) validation service validates loan application data upfront, gives you faster and easier validation, and freedom from representations and warranties on validated income, assets, and employment.

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Data Vendor Information
The DU validation service uses third-party data vendors to independently validate borrower income, assets, and employment data, providing our lenders Day 1 Certainty on validated loan components.

Fannie Mae has an open platform for data vendor participation to provide choices to our customers.

Current Data Vendor List.

Data Vendor Process.

Getting Started

Are You Ready for Day 1 Certainty?

Help & Training

DU/DO/Fannie Mae Connect user credentials are needed to access the reference guide; overview eLearning course; and income, assets, and employment validation examples.

What's New

  • New Day 1 Certainty eLearning

    Three new elearning courses provide detailed information to help lenders take advantage of Day 1 Certainty offerings.

Frequently Asked Questions

Message for Data Vendors

Release Notes

User Help

Have a question? Access the page below to contact the Technology Support Center for help.

Technology Terms and Conditions