Fannie Mae Rental Income Rules — September 2026

Why older articles are dangerous

Fannie reorganized and updated rental-income policy effective September 2, 2026. Subject property, short-term rental, ordinary non-subject rental, departing residence and recently purchased investment property now have distinct topics.

Start with property category

Before calculating income, identify whether the rental is the subject property or other real estate and whether it is a departing residence, short-term rental or an investment property acquired within 45 days of the subject application.

Documentation drives the calculation

Tax returns/Schedule E, leases, appraisal market rent and other permitted documentation are not interchangeable in every category.

Positive income may be restricted

In some scenarios positive adjusted rental income can become qualifying income; in others it can only offset the property's PITIA. That distinction can change purchasing power materially.

Investor underwriting checklist

Identify occupancy, unit count, purchase/refinance/cash-out purpose, current ownership/title, financed-property count, current PITIA on every retained property, leases, Schedule E history, acquisition dates, reserves, entity ownership, short-term-rental use, condo/project status and the exact agency or private-investor program. Rental income should be calculated only after the property is placed in the correct underwriting category.

Where experienced analysis matters

A deal can fail because the wrong rent document was used, positive rental income was treated too generously, reserves were calculated incorrectly, an LLC mortgage was counted incorrectly, a newly acquired rental was analyzed under an older rule, or a private DSCR overlay was presented as if it were a Fannie/Freddie requirement.

Primary sources

• Fannie General Rental Income
• Fannie Subject Rental
• Fannie Short-Term Rental
• Fannie Non-Subject Rental
• Fannie Departing Residence
• Fannie Recent Rental
• Fannie Multiple Properties
• Freddie Investment Property

Last reviewed September 15, 2026. Private DSCR/portfolio guidelines vary by investor and are not agency rules.

How I would underwrite the scenario step by step

1. Identify agency conventional versus private DSCR/portfolio financing. 2. Build a complete real-estate-owned schedule with ownership, mortgage obligation, PITIA, rent, acquisition date and entity vesting. 3. Determine the permitted rental documentation for each property. 4. Calculate each rental separately under the applicable rule. 5. Count financed properties and calculate required reserves. 6. Review property/project eligibility, LTV, credit and cash-out/seasoning. 7. Only then compare pricing and decide which loan structure best fits the investor's strategy.

This sequence prevents a strong-looking property from being qualified with the wrong income methodology. For investors with several rentals, one incorrectly treated property can change DTI, reserves, financed-property count or even product eligibility.