How can a building that costs more need a smaller salary?
Because part of the rent counts as your income. On a two-to-four unit home you live in, FHA and Fannie Mae rules count 75 percent of the rent from the other units. When the rent is high for the extra price, the bigger home can take a smaller salary than a house.
WHAT MOST PEOPLE ARE NEVER TOLD
A lender measures your income against your monthly debts, the payment included, and never against the price. On a home with rent, the price alone does not tell you the salary it takes.
On a house with no second unit, the only income is your pay. On a two-to-four unit home you live in, FHA's handbook tells the lender to add the counted rent to your income. Fannie Mae's guide does the same when the lender can document what you pay for housing now. It caps the counted rent for buyers with under a year as a landlord.
The bigger home has a bigger payment and more income to carry it. So on any listing, ask for two numbers: the cost to live there after rent and the income needed to qualify.
GOOD TO KNOW
Ask the lender which rent it will count: that figure comes from the appraiser or the lease, not the listing. A dollar of rent supports about a third of a dollar of payment, so low rent for the extra price means a bigger salary than the cheaper house.
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WHERE THIS COMES FROM
- HUD Handbook 4000.1 (FHA), Rental Income, section II.A.4.c.xii(I) (pages 240 to 241, revised 8/12/2026)
- Fannie Mae Selling Guide B3-3.8-01, General Rental Income Information, Treatment of Rental Income (or Loss) (09/02/2026)
- Fannie Mae Selling Guide B3-3.8-02, Rental Income from the Subject Property (09/02/2026)
- Fannie Mae Selling Guide B3-6-02, Debt-to-Income Ratios (04/02/2025)
Researched and written by Series Homes. Checked against its sources on . Lending rules change. This page is general information, not a loan offer or legal or tax advice.