November 3, 2022
Loan Defect Taxonomies
Fannie Mae utilizes a standard defect taxonomy during our post-purchase file review process. The taxonomy is structured to support an accelerated root cause analysis of loan quality data. These defects (which may be eligibility violations) are referenced in reporting to lenders on the quality of their deliveries.
This information is available in both a PDF and a spreadsheet, these lists show the loan defects by categories, identified by Fannie Mae.
