Fannie Mae Selling Guide B3-6-02: Debt-to-Income Ratios
This topic contains information on the use of the debt-to-income (DTI) ratio, including:
Fannie Mae publishes the full text of this section: Fannie Mae Single Family Selling Guide on the Fannie Mae website. Zeitro Strata answers questions about it with the passage and page cited.
What this section covers
- DTI Ratios
- Maximum DTI Ratios
- Exceptions to the Maximum DTI Ratio
- Calculating Total Monthly Obligation
- DTI Ratio Tolerance and Re-Underwriting Criteria
- Applying the Re-underwriting Criteria
Guideline text quoted as published by the agency. The latest published version governs. This is not an underwriting decision.

