Using Rental Income to Qualify for a Mortgage in 2026
Rental income can help some borrowers qualify for a mortgage, but the lender may use an adjusted amount rather than the lease's full monthly rent.
The September 2026 agency guidance matters
Fannie Mae's rental-income guidance was updated September 2, 2026, with separate sections for subject properties, short-term rentals and certain recently purchased non-subject properties. The right calculation depends on whether the property is being purchased or refinanced, how it is occupied, the borrower's rental-management experience and the documentation available. Ask which guide section the lender is applying.
Why gross rent is not qualifying income
A $2,400 monthly lease is not necessarily $2,400 of usable income. Agency calculations may account for vacancy or operating expenses, property housing costs and tax-return history. In some situations, a lease amount is multiplied by 75% before the property's PITIA is subtracted. In others, Schedule E cash flow is analyzed. The exact method depends on the current rules and facts.
Purchase documentation can include appraisal rent schedules
For eligible subject-property purchases, Fannie Mae's September 2026 guidance identifies Form 1007 or Form 1025 as applicable, along with executed leases when leases transfer to the borrower. If the lease amount is not reasonably supported by market rent evidence, the lender may need further analysis or a lower amount. A seller's advertised projected rent is not enough on its own.
Refinance and existing rentals can be different
For some refinances, recent personal tax returns including Schedule E and rent evidence may be required. Underwriters may analyze reported net rental income and allowable add-backs under the guide. Borrowers with fewer than 12 months of property-management experience can face limits on how positive rental income is applied. Do not assume that buying a second property instantly creates unlimited qualifying income.
Example: new investor buying a duplex
An owner-occupant plans to live in one duplex unit and rent the other for $1,800. The lender may use eligible rental income from the other unit subject to the applicable documentation and calculation rules. The borrower should also budget for vacancy, repairs and the cost of maintaining both units. The mortgage qualifying treatment and the investment's actual cash flow are separate.
Short-term rental rules are distinct
Fannie Mae's September 2026 guide includes a separate section for eligible one-unit short-term rental investment properties. Legality, licensing and permitted use matter, and rent evidence rules differ from ordinary long-term leases. Do not assume Airbnb gross receipts can simply be inserted into a conventional mortgage application.
How to prepare
Collect signed leases, tax returns and Schedule E when applicable, property statements, purchase and ownership records, and any available rent schedules. Tell the lender about recent acquisitions, vacancies and unusual rental income. Ask for a written explanation of the adjusted net rental income calculation rather than relying on a rent-to-payment shortcut.
Frequently asked questions
Can lenders count all of my rental income?
Not automatically. Applicable calculations and documentation can reduce the amount used.
Can projected rent help me qualify?
Sometimes, if supported under the relevant loan program's requirements.
Do I need Schedule E?
It depends on the property, transaction and income method.
Does landlord experience matter?
It can affect the treatment of positive rental income under Fannie Mae rules.
Can Airbnb income count?
Certain short-term rental scenarios have specific requirements; verify the actual program.
The bottom line
Rental income can help some borrowers qualify for a mortgage, but the lender may use an adjusted amount rather than the lease's full monthly rent. Compare written loan terms and property risks before committing.
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Related mortgage resources
Sources
- Fannie Mae — General Rental Income (September 2026)
- Fannie Mae — Subject-Property Rental Income
- Fannie Mae — Short-Term Rental Income