Investment Property Mortgage Navigator

Short-Term Rental Mortgage Qualification

Short-term rental income can be considered under current agency guidance in qualifying scenarios, but Airbnb/VRBO revenue is not automatically treated like a standard long-term lease.

Fannie has a dedicated section

The current Selling Guide separately addresses rental income from a subject short-term rental property.

History and tax reporting

Current Fannie guidance considers rental history and Schedule E reporting, including Fair Rental Days and periods when a property was out of service.

Market rent is not operating revenue

Nightly-rate projections, gross booking revenue and appraisal market rent are different concepts.

Private investor options

DSCR and other private-investor programs may analyze short-term rentals differently; exact rules vary by investor.

STR is not ordinary lease income

Fannie now has a dedicated subject-property short-term-rental topic. Tax-return history/Fair Rental Days and current eligibility rules matter; Airbnb projections alone are not agency qualifying income.

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.

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.

MortgageDadOf3 rule: Separate agency requirements, private-investor guidelines and lender overlays. Rental-income calculations, DSCR, LTV, credit, reserves, seasoning and entity rules are scenario- and product-specific.