Social Bonds and Green Bonds
Our mortgage-backed securities (MBS) help attract global capital to support U.S. housing. While all our MBS contribute to market liquidity and stability, we also offer labeled securities to channel capital towards affordable homeownership, workforce rental housing, and properties that meet higher energy- and water-saving standards.
Fannie Mae’s Social and Green Bonds conform with our Social and Green Bond Frameworks, which align to global standards*, and we provide security-level impact information.
Social and Green Bond Impacts
Fannie Mae discloses projected impact metrics for our single-family and multifamily social and green bonds. Learn more about these impacts, including at the CUSIP-level, in our downloadable file.
Our 2024 Impact at Scale
Impact metrics are based on one-year projected impacts of the loans backing the social and green bonds issued in 2024.
2024 Social Bond Issuances:
45K single-family loans financed
2.18 average single-family loan-level Mission Density Score
70K multifamily units were affordable to households earning ≤ 60% AMI
2024 Green Bond Issuances:
$274 projected average homeowner utility cost savings per single-family home per year
$196 projected average utility cost savings by multifamily tenants per household per year
92K single-family and multifamily housing units retrofitted or green building-certified
Refer to our Green Bond Impact Methodology for more on our impact methodology.
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* International Capital Markets Association (ICMA) Social Bond Principles and Green Bond Principles.
The projected energy, emissions, and water usage savings are Fannie Mae’s estimates of the potential savings at the related mortgaged properties that may result from the implementation of the efficiency improvements required by the indicated green financing programs. There can be no assurance that any particular savings will be achieved at any given mortgaged property. Fannie Mae disclaims any liability for the failure of any mortgaged property to achieve any particular energy, emissions, or water usage savings. The estimates are solely as of October 7, 2025, and Fannie shall have no obligation to provide updated estimated or actual savings information.