Using Rental Income to Qualify for a Mortgage in Georgia

Using rental income to qualify for a mortgage is one of the most useful tools available to Georgia buyers, and one of the most misunderstood. It is how a buyer affords a duplex in Marietta. It is how a family keeps their Woodstock starter home as a rental instead of selling it.

It is also where a lot of pre-approvals fall apart, because borrowers assume the lender will count the full rent. They will not.

Fannie Mae restructured its rental income requirements in Selling Guide Announcement SEL-2026-08, published September 2, 2026. The update reorganized the policy and closed several gaps rather than rewriting the fundamentals. The practical effect for borrowers is more consistency between lenders, which is welcome, because this is an area where two underwriters could previously reach two answers.

The 75% rule is where everyone gets surprised

Lenders do not credit you with the full rent. The standard approach applies a vacancy and maintenance factor of roughly 25%, so about 75% of the gross rent counts toward your income.

A unit renting for $1,800 a month contributes roughly $1,350 to the calculation, not $1,800. That $450 difference, applied across two units, moves a debt-to-income ratio meaningfully.

The logic is sound. Tenants move out, roofs leak, and a month of vacancy is normal. The haircut is the lender pricing in the reality of being a landlord.

Where the rent figure comes from

This depends entirely on whether the property has a history.

• Existing rental with a track record. The lender uses your tax returns, specifically Schedule E, usually looking at the past one to two years. Depreciation and certain other expenses get added back, which often helps you.
• Property you are buying now. The appraiser completes a market rent schedule alongside the appraisal. A signed lease helps, but the appraiser’s opinion of market rent generally governs.
• A home you are moving out of. Converting a primary residence to a rental has its own rules, and those rules have historically been the strictest part of this topic. Expect the lender to want a signed lease, proof the tenant’s deposit cleared, and in some cases equity in the departing home.

One more wrinkle worth knowing. If you have never been a landlord, some programs limit how much rental income you can use, or require offsetting reserves. Using rental income to qualify is easier the second time than the first.

Using rental income to qualify on the property you live in

This is the scenario most first-time buyers care about, and it is where the leverage is.

If you buy a two to four unit property and live in one unit, you are an owner-occupant. That means you keep owner-occupied down payment terms and pricing while the other units help you qualify. FHA allows this at 3.5% down. VA allows it at zero down for eligible veterans. Conventional multi-unit financing is available too, though the down payment is higher.

A basement apartment or a converted garage in a single-family home is a different animal. Accessory unit income is allowed in some situations and disallowed in others, and it usually depends on whether the unit is legal, permitted, and reflected in the appraisal. Never assume the unpermitted basement apartment counts.

Short-term rentals are the hard case

Airbnb income is common around Blue Ridge, Helen, and parts of metro Atlanta, and it is genuinely difficult to use.

Most conventional and government programs want a lease, and a short-term rental does not have one. Documented short-term income sometimes works through non-QM or portfolio products, but it generally will not count on a standard Fannie Mae or Freddie Mac loan for a property you are purchasing.

Also check the local rules before you count on the income at all. Several Georgia municipalities and a great many HOAs restrict short-term rentals outright.

What to bring to your lender

Have these ready and the process moves quickly:

• Two years of tax returns with all Schedule E pages, if you own rentals now
• Current signed leases for every occupied unit
• Proof of the security deposit clearing your account, for a newly signed lease
• Mortgage statements, tax bills, insurance, and HOA dues for each property you own
• A rough monthly figure for what you expect the new units to rent for, so we can sanity-check it against the appraiser’s opinion early

Our breakdown of debt-to-income limits for Georgia mortgages explains how the resulting number gets applied, and how much house you can afford in Georgia covers the broader picture.

Using rental income to qualify: the bottom line

Rental income works. It just works at about 75 cents on the dollar, and it works best when the paperwork is clean. The buyers who run into trouble are the ones who build their budget on full rent and find out at underwriting.

Run the numbers with a lender before you write an offer on a multi-unit property, not after. In Georgia the closing attorney is coordinating a tight timeline, and discovering a qualifying gap two weeks before closing is an expensive way to learn this.

Georgia Platinum Mortgage works with buyers in all 159 Georgia counties and compares guidelines across roughly 80 wholesale lenders, which matters a great deal on rental income because the overlays vary. Contact us today and we will run your scenario properly.