Uniform Loan Delivery Dataset
The Uniform Loan Delivery Dataset (ULDD) supports the work to implement uniform data standards and defines the data that we require at loan delivery based on loan type, loan feature or other business requirements.
Business Resources
ULDD data is granular, standardized, and has clear definitions, providing sellers with a common understanding of the meaning of each data point. The result is greater transparency, which helps sellers gain a better understanding of our assessment of mortgage risk and purchase requirements on loans they sell to us.
ULDD Revisions
The ULDD Revisions webpage is designed to assist you with loan delivery requirement revisions to ULDD since the last publication. The revisions include ULDD specification updates and ULDD impacts that were previously communicated in Single-Family Seller/Servicer Guide (Guide) Bulletins. The webpage will be updated periodically.
ULDD Phase 5
ULDD Phase 5 incorporates business critical requirements, aligns with the new redesigned UAD 3.6, and supports the Enterprise Credit Score and Credit Reports Initiative.
Additional Resources
Technical Resources
The following resources provide the technical documentation that Freddie Mac-approved Sellers and vendors need to implement Freddie Mac's loan delivery data requirements:
Announcements
2026
- May 26, 2026 – ULDD Phase 5 and Documentation Updates
2025
- May 20, 2025 – ULDD Phase 4a and Phase 5 Updates and Guidance
2023
- December 19, 2023 – ULDD Phase 5 Supporting Documentation Updates
- September 12, 2023 – ULDD Phase 4a Updates and Phase 5 Specification Release
2022
- April 26, 2022 – ULDD Phase 4a Supporting Documentation Updates
2021
- December 14, 2021 – ULDD Phase 4a Specification Release
- June 8, 2021 – ULDD Updates for CMT-indexed ARMs Retirement, Implementation Notes and Enumerations
2020
- December 1, 2020 – Updates to Support ULDD LIBOR to SOFR ARM Index Transition, Condo Delivery and Home Possible® Mortgage
- April 21, 2020 – ULDD Updates Supporting SOFR ARM Index Transition
2019
- May 30, 2019 – ULDD Update Further Aligns GSE Specifications
- May 14, 2019 – ULDD Phase 3 Announcement
- January 10, 2019 – ULDD Phase 3 Reminder
2018
- July 10, 2018 – ULDD Phase 3 Update
- February 26, 2018 – ULDD Phase 3 Loan Selling Advisor Updates Deferred Until March 5
- February 21, 2018 – ULDD Phase 3 Reminder & Updates
- January 30, 2018 – ULDD Phase 3 Mandate and Application Received Dates
2017
- November 7, 2017 – ULDD Phase 3 Updates and Guidance
- June 27, 2017 – ULDD Phase 3 Addendum Updates
- March 28, 2017 – ULDD Phase 3 Update Announced
2016
- December 13, 2016 – ULDD Phase 3 Announced
2013
- November 29, 2013 – GSE Publish ULDD Phase 3 Preview Specification
- August 22, 2013 – ULDD Phase 2 Preparation Tips, Specification Update, and More
- May 20, 2013 – Preparing for the Phase 2 ULDD
2012
- December 13, 2012 – GSEs Publish Phase II ULDD Specification
Uniform Loan Delivery Dataset (ULDD) - Revisions
Most Recent Updates as of October 7, 2026
The Uniform Loan Delivery Dataset (ULDD) revisions webpage is designed to assist you with loan delivery requirement revisions to ULDD since the publication of Appendices A and D on May 26, 2026. These revisions include ULDD specification updates and ULDD impacts that have been previously communicated in the Single-Family Seller/Servicer Guide (Guide) Bulletins.
The information on this webpage will be removed once the revisions have been incorporated into Appendices A and D.
The ULDD revisions are listed in the tables below. These tables identify the communication date and Guide Bulletin number if applicable, Sort ID, Data Point Name, Revision Effective Date, a description of the change, and the ULDD column(s) that have been revised (text being removed will be displayed in red strikethrough, text being added will be displayed in blue).
Revised ULDD Data Points
October 7, 2026 – Bulletin 2026-13
| Sort ID | Data Point Name | Revision Effective Date | Revision Description | Revision for FRE Conditionality Details | Revision for FRE Implementation Notes | Revision for FRE Supported Enumerations |
|---|---|---|---|---|---|---|
| 193.1 | Alterations Improvements And Repairs Amount | January 25, 2027 | Updated Conditionality Details to remove Loan Program Identifier "CHOICERenoEXpressDTSArea". | IF Sort ID Sort ID 404-LoanProgramIdentifier = “CHOICERenovation”, “CHOICERenoEXpress”, | Values: ◊ Enter the total renovation costs amount associated with the renovation loan. | |
| 193.1 | Alterations Improvements And Repairs Amount | March 1, 2027 | Removed Implementation Notes for GreenCHOICE Mortgages®. | IF Sort ID Sort ID 404-LoanProgramIdentifier = “CHOICERenovation”, “CHOICERenoEXpress” or "CHOICERenovationInProgess" | Values: ◊ Enter the total renovation costs amount associated with the renovation loan. | |
| 221 | Related Investor Loan Identifier | January 25, 2027 | Removed Implementation Notes for GreenCHOICE Mortgages®. | IF Sort ID 222-RelatedLoanInvestorType="FRE" | Values: ◊ This is the 9-digit Freddie Mac-supplied number assigned to the original Mortgage by the Seller when the Mortgage was initially sold to Freddie Mac. | |
| 222 | Related Loan Investor Type | January 25, 2027 | Removed Implementation Notes for GreenCHOICE Mortgages®. | IF applies | Values: ◊ Enter "FRE" for Freddie Mac-owned Converted Mortgages, Freddie Mac-owned "no cash-out" refinance Condominium Unit Mortgages, Freddie Mac-owned "no cash-out" refinance Cooperative Share Loans, | FRE Seller |
| 244.1 | Energy Improvement Amount | January 25, 2027 | Updated Conditionality Details for GreenCHOICE Mortgages® - added criteria of application received date prior to January 25, 2027. Added Conditionality Details and Implementation Notes for CHOICEReno eXPress® and CHOICERenovation® Mortgages. | IF [(Sort ID 404-LoanProgramIdentifier = "GreenCHOICE" or "GreenCHOICEToPayOffOutstandingEnergyDebt") AND Sort ID 224-ApplicationReceivedDate < "2027-01-25"]
OR [(Sort ID 404-LoanProgramIdentifier = "CHOICERenovation", "CHOICERenoEXpress" or CHOICERenovationInProgress) AND IF Applies] | Values: ◊ For GreenCHOICE Mortgages®, | |
| 244.1 | Energy Improvement Amount | March 1, 2027 | Removed Conditionality Details and Implementation Notes for GreenCHOICE Mortgages®. | IF [ | Values: | |
| 293 | Refinance Cash Out Amount | January 25, 2027 | Removed Implementation Notes for GreenCHOICE Mortgages® and CHOICERenovation® Mortgages. | IF Sort ID 294-RefinanceCashOutDeterminationType = "CashOut" | Format: Enter as a positive number. ◊ Enter the Note Amount (Sort ID 319) minus the following amounts paid with the proceeds of the refinanced Mortgage:
| |
| 320 | Note Date | January 25, 2027 | Added Implementation Notes for CHOICEReno eXPress® Mortgages. | IF Sort ID 397-MortgageModificationIndicator = "false" | Values: ◊ Enter the original Note Date unless the Mortgage is one of the following: ◊ For Construction to Permanent Mortgages and Renovation Mortgages:
◊ For Seller-Owned Modifications this data point is not required. | |
| 320 | Note Date | March 1, 2027 | Removed Implementation Notes for GreenCHOICE Mortgages®. | IF Sort ID 397-MortgageModificationIndicator = "false" | Values: Enter the original Note Date unless the Mortgage is one of the following: ◊ For Construction to Permanent Mortgages and Renovation Mortgages:
◊ For Seller-Owned Modifications this data point is not required. ◊ Enter the date of | |
| 363 | Escrow Balance Amount | March 1, 2027 | Removed Implementation Notes for GreenCHOICE Mortgages®. | IF [Sort ID 234-EscrowIndicator = "true" AND (Mortgage is delivered through Cash-Released XChange® OR Co-Issue XChange® where All-in Funding is enabled)] OR IF applies | Values: ◊ For Mortgages with Escrow accounts sold through Cash-Released XChange® or Co-Issue XChange® where All-in Funding is enabled, enter the Escrow balance amount. ◊ For Concurrent Transfer of Servicing (CTOS) Mortgages with Escrow accounts, enter the Escrow balance amount. | |
| 404 | Loan Program Identifier | January 25, 2027 | Removed enumeration "CHOICERenoEXpressDTSArea". | IF applies | Values: ◊ Enter "EnergyConservation" for Mortgages that finance the purchase of a property that is to be retrofitted, refurbished, or improved with energy conservation components. ◊ Enter "Renovation" for Renovation Mortgages meeting the requirements of Guide Section 4602.3. | See Tab-Enumerations |
| 404 | Loan Program Identifier | March 1, 2027 | Removed enumerations "GreenCHOICE" and "GreenCHOICEToPayOffOutstandingEnergyDebt". | IF applies | Values: ◊ Enter "EnergyConservation" for Mortgages that finance the purchase of a property that is to be retrofitted, refurbished, or improved with energy conservation components. ◊ Enter "Renovation" for Renovation Mortgages meeting the requirements of Guide Section 4602.3. | See Tab-Enumerations |
This information is not a replacement or substitute for the requirements in the Freddie Mac Single-Family Seller/Servicer Guide or any other contractual agreements. This information does not constitute an agreement between Freddie Mac and any other party. © 2026 Freddie Mac.
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