Subject-property rental income
Buying a property with rent-producing units can help qualification—but the amount usable depends on the transaction and the borrower's landlord history.
Fannie eligible subject properties
Current Fannie policy permits qualifying rental income from 2–4 unit principal residences, 1–4 unit investment properties, and one qualifying ADU on a one-unit primary residence.
Purchase calculation
For eligible purchase transactions, Fannie generally starts with monthly gross rent and applies the familiar 75% factor, then subtracts PITIA to determine adjusted net rental income (ANRI).
Landlord experience changes the outcome
With at least 12 months of rental-property management experience, positive ANRI can generally be added to income. With less than 12 months, positive ANRI may generally only offset the subject PITIA; a negative amount still counts in DTI.
Official guide baseline
Fannie Mae Selling Guide · Freddie Mac Seller/Servicer Guide
Rental-income rules are transaction-, property-, ownership-history- and management-experience-specific. Current guide controls.