Fannie Mae Enhances Multifamily Disclosures with Additional Data Attributes

September 17, 2021

As part of our ongoing efforts to provide transparency to the market, in November, we will release enhancements to DUS Disclose® to expand and improve the available disclosure information on our multifamily securities.

Area Median Income Attributes

We are adding three additional area median income (AMI) data fields for Fannie Mae multifamily mortgage-backed securities (MBS). These fields will only be populated for MBS issued on or after November 1, 2021.

  • % of Units At or Below 100% Area Median Income
  • % of Units At or Below 120% Area Median Income
  • % of Units Greater Than 120% Area Median Income

To assist market participants with these enhancements, updated file layouts are available here. The file layouts include:

  • MBS Advanced Search
  • Daily and Monthly New Issuance
  • Daily and Monthly New Issuance Correction

The updated DUS Disclose glossary is forthcoming and will be communicated as soon as available.

Ongoing Supplemental File Timing Change

To improve timing for ARM data, starting in November, ARM data in the Ongoing Supplemental File will be available on Business Days 4 and 5, instead of Business Days 5 and 6.

The Ongoing Supplemental file layout is available here to reflect the timing of the ARM attributes.

If you have questions about DUS Disclose or the upcoming enhancements, please contact Fannie Mae's Investor Help Line by phone (1-800-232-6643) or by email.