All STACR® and ACIS® files are available for download in the latest format for all time periods at Note that the first column is now the time period and disclosure files are now at the deal-level. STACR® SPI and WLS disclosures remain in a different format

Terms of Use

Freddie Mac Terms of Use for CRT Disclosure Files

Freddie Mac Terms of Use for API and Asset Level Data

STACR® and ACIS® Disclosure Guides

CRT Reference Pool Glossary

CRT Reference Pool Disclosure File Layouts 

CRT Disclosure Header

CRT Disclosure Versions

Historical Disclosure Changes

STACR® SPI and WLS Disclosure Guides

STACR SPI Glossary

STACR SPI File Layouts

STACR SPI Disclosure Guide Effective Pre-Oct 2018

WLS Disclosure Guide

Historical Loan-Level Dataset

Access Freddie Mac’s Single-Family Loan-Level Dataset (SFLLD) for all mortgages purchased or guaranteed from 1999.