Rental Income Qualification

Current Fannie framework

Fannie Mae's September 2, 2026 rental-income update separates subject property, short-term rental, non-subject property, departing residence and investment properties purchased within 45 days.

75% is not the whole rule

Some Fannie scenarios use 75% of documented gross rent before PITIA treatment, but documentation and whether income may offset PITIA or become positive qualifying income depend on the scenario and management history.

Tax returns vs lease/appraisal

Schedule E, leases, appraisal market rent and other evidence are used differently depending on when the property entered service and the transaction facts.

Calculate each property

For multiple non-subject rentals, Fannie requires rental income or loss to be calculated separately and then aggregated.

September 2026 changed the map

Fannie now separates rental analysis into subject property, subject STR, non-subject property, departing residence and investment property purchased within 45 days of subject application. Do not apply one generic 75% rule to all five.

Documents I would gather before calculating rental income

Current mortgage statements/PITIA for every retained property; Schedule E and applicable tax returns; leases; purchase closing statements and acquisition dates; appraisals or rent schedules when applicable; proof of current housing payments; insurance/HOA information; entity documents if an LLC is involved; and evidence of reserves. The correct calculation depends on what the property is and when/how it was acquired.

Common investor-loan mistakes

Calling 75% of rent 'income' without subtracting PITIA; using a lease when current agency policy requires another rent source; adding positive rental income when it is only allowed to offset housing expense; confusing cap rate with DSCR; applying a private investor's seasoning rule to Fannie/Freddie; and assuming an LLC-owned mortgage is counted the same as a personally obligated mortgage.

Primary sources to verify

• Fannie Mae — General Rental Income
• Fannie Mae — Investment Property Purchased Within 45 Days
• Fannie Mae — Multiple Financed Properties
• Freddie Mac — Investment Property Mortgages

Last reviewed September 15, 2026.

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.