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Buying a duplex and living in one unit

House hacking in Florida: down payment options and how expected rent can count toward the income used for the loan.

By Simp Mortgage LLC Team · Updated November 7, 2026

Buying a two-to-four-unit property, living in one unit and renting out the others, is often called house hacking. Because you live in the property, you can usually use home loan programs instead of investment loans, which often means a smaller down payment.

Why owner-occupied 2 to 4 units are different

When you live in one unit as your primary residence, lenders treat the loan as a home loan. That typically allows smaller down payments and better terms than a loan for a pure investment property. You generally must move in within a set period after closing and live there for at least a year, so these loans are not for buyers who plan to rent every unit.

Counting rent

Lenders may count some of the expected rent from the other units toward the income used for the loan. They typically use only a percentage of the rent, often around 75%, to allow for vacancy and expenses. The exact rules depend on the loan program. Expect to provide a lease or an appraiser's rent estimate.

Being a landlord

A duplex comes with landlord responsibilities. Plan for:

Is it right for you?

House hacking can lower your living costs and help you build equity, but you share a building with your tenants and take on risk. The rent versus buy calculator can help you compare your options. A loan officer can explain which programs fit the property you are looking at. Book a time to talk it through, with no obligation.

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