House Hacking: Your First Investment Strategy
The short answer
- House hacking lets you use owner-occupied loans on two- to four-unit homes, with down payments as low as 3.5% (FHA) or 5% (conventional) for eligible borrowers
- Tenant rent can offset part of your mortgage, but budget for vacancies and repairs
Go deeper · tap a topic
Why this matters
What if your first home could also bring in rent? House hacking is a common first step into real estate because it lets you use owner-occupied financing — usually with a lower down payment and better terms than an investment-property loan — while rental income helps cover your costs. It also makes you a landlord, with all the work and risk that comes with it.
How House Hacking Works
The concept is straightforward: you buy a property with two to four units, live in one, and rent out the others. Because you live in the property, you may be able to use an FHA loan with as little as 3.5% down with a qualifying credit score or a conventional loan with as little as 5% down on a two- to four-unit home, compared with at least 15% down for a one-unit investment property and 25% for a two- to four-unit one on a conventional loan. Your tenants' rent offsets part of your mortgage, which can lower your own housing cost. In California, an accessory dwelling unit (ADU) on a single-family lot is another common way to do this. How much rent covers depends on local rents, your payment, vacancies, and repairs, so run the numbers on each property.
The Rules That Come with Owner-Occupied Financing
The low down payment only applies because you live there, and lenders take that seriously. You must genuinely intend to make the property your primary residence; FHA, for example, expects you to move in within 60 days of closing and live there for at least a year. Claiming you will live in a home you plan to rent out is occupancy fraud. If you are an eligible veteran or service member, a VA loan can also be used on a two- to four-unit property you live in. Expect the lender to look harder at a multi-unit purchase than a single-family home: some lenders may count part of the expected rent from the other units, some programs ask you to show cash reserves left over after closing, and on a three- or four-unit FHA purchase the property's net rental income must generally cover the full mortgage payment on its own. Ask your lender how they treat rental income and reserves on the exact property before you make an offer.
The Numbers Behind a House Hack
Here is a simplified example, not a quote: say you buy a duplex for $300,000 with an FHA loan at 3.5% down — that is $10,500 plus closing costs. Suppose your total monthly payment, including mortgage insurance, taxes, and homeowners insurance, comes to $2,200. You live in one unit and rent the other for $1,400. Your out-of-pocket housing cost is $800 a month instead of $2,200. If comparable rent for you would be $1,500, that is $700 a month less, before you set money aside for vacancies, repairs, and turnover, which you should. Prices, rents, and payments vary widely by area, especially in California, so plug in real local numbers. Some owners later move out and keep the property as a rental; your loan's occupancy terms and any new loan's rules decide whether and when that works.
Finding the Right Property
Not every multi-unit property is a good house hack. You want a property where the rental units can bring in enough rent to meaningfully offset your mortgage. Research comparable rents in the area before making an offer — rental listing sites and local property managers can give you a realistic picture. Pay attention to the condition of the units: a property that needs major work before you can rent it changes the math entirely. In California, also check whether the city has rent control or eviction rules; statewide rent caps and just-cause eviction rules under AB 1482 generally do not apply to a duplex in a single structure where the owner lives in one unit from the start of the tenancy, but only while the owner keeps living there, and local ordinances can still apply. And ask yourself whether you would want to live there, since you will.
Living Next to Your Tenants
The part nobody talks about enough is the lifestyle factor. You will be living next door to your tenants, which means you are the landlord on-site. That has advantages — you can keep an eye on the property and respond quickly to issues. But it also means tenants may knock on your door at 10 PM about a leaky faucet. Set clear boundaries from day one: put everything in the lease, use a separate phone number or email for maintenance requests, and treat the relationship professionally even though you share a building. Fair housing laws apply to you as a landlord, so use the same written screening criteria for every applicant. Owners who struggle with house hacking are often the ones who blur the line between neighbor and landlord.
Everything to remember
- House hacking lets you use owner-occupied loans on two- to four-unit homes, with down payments as low as 3.5% (FHA) or 5% (conventional) for eligible borrowers
- Tenant rent can offset part of your mortgage, but budget for vacancies and repairs
- Research comparable rents, property condition, and any local rent rules before buying
- Set professional boundaries with tenants from day one, and apply the same screening criteria to everyone
- Owner-occupied loans require you to genuinely live in the property as your primary residence
Was this about you?
Finding a home: 1 of 11 read