MBS Trust Agreements

When Fannie Mae issues an MBS, that security represents an undivided beneficial interest in a pool of mortgage loans or participation interests in mortgage loans held in trust pursuant to the terms of a governing trust document.

The Master Trust Agreement, or the Trust Indenture, including its exhibits and supplements, generally sets forth the terms relating to an issuance of MBS, the loans or participation interests in the pool, and payment terms on the MBS.

Each document is presented as a Portable Document Format (PDF) file.

Single-Family
Effective May 1, 2018, Fannie Mae executed a new Amended and Restated 2016 Single-Family Master Trust Agreement that is used for both fixed-rate and ARM single-family pools with issue dates on and after June 1, 2016.

The Amended and Restated 2016 Single-Family Master Trust Agreement permits certain REMIC elections with respect to all or a portion of the assets in the related MBS Trust. These elections may be made with respect to pools with issue dates on or after May 1, 2018 using the following new REMIC Master Trust Agreements: 

The 2016 Single-Family Master Trust Agreement, effective June 1, 2016, was in effect for both fixed-rate and ARM single-family pools with issue dates on and after June 1, 2016 through April 1, 2018, but was amended and restated above.

The 2009 Single-Family Master Trust Agreement, effective January 1, 2009, was in effect for both fixed-rate and ARM single-family pools with issue dates on and after January 1, 2009 through May 1, 2016.

The Amended and Restated 2007 Single-Family Master Trust Agreement, effective January 1, 2009, clarifying the June 1, 2007 Single-Family Master Trust Agreement, was in effect for both fixed-rate and ARM single-family pools with issue dates on and after June 1, 2007 through December 1, 2008.

The 2007 Single-Family Master Trust Agreement, effective June 1, 2007, was in effect for both fixed-rate and ARM single-family pools with issue dates on and after June 1, 2007 through December 1, 2008, but was amended and restated above.

Multifamily
Fannie Mae executed a new 2017 Multifamily Master Trust Agreement, effective December 1, 2017, that is used for fixed-rate, ARM, and DMBS multifamily pools with issue dates on and after December 1, 2017.

The 2010 Multifamily Master Trust Agreement was in effect for fixed-rate, ARM and DMBS multifamily pools with issue dates on and after October 1, 2010 through November 1, 2017.

The 2009 Multifamily Master Trust Agreement was in effect for fixed-rate, ARM, and DMBS multifamily pools with issue dates on and after February 1, 2009 through September 1, 2010.

The Amended and Restated 2007 Multifamily Master Trust Agreement, effective February 1, 2009, clarifying the September 1, 2007 Multifamily Master Trust Agreement, was in effect for fixed-rate, ARM, and DMBS multifamily pools with issue dates on and after September 1, 2007 through January 1, 2009.

The 2007 Multifamily Master Trust Agreement, effective September 1, 2007, was in effect for fixed-rate, ARM, and DMBS multifamily pools with issue dates on and after September 1, 2007 through January 1, 2009, but was amended and restated above.

The existing Fannie Mae Trust Indentures were amended, effective June 1, 2007, and used for fixed-rate, ARM, and DMBS multifamily pools with issue dates on and after June 1, 2007 through August 1, 2007.

Previous Trust Documents for Single-Family and Multifamily

The Fannie Mae MBS Trust Indentures were in effect for single-family and multifamily pools issued before June 1, 2007 (amended as stated above).



Last Revised: 04/23/18