What is the minimum down payment for house hacking?

With an FHA loan on a 2–4 unit property, you can put as little as 3.5% down if you live in one of the units. Conventional owner-occupied loans for multifamily now allow as little as 5% down (Fannie Mae updated this in 2023). These rates are significantly better than the 20–25% required for pure investment properties.

Do I have to live in the property forever?

No. FHA loans typically require you to occupy the property as your primary residence for at least one year. After that, you can move out, convert the unit to a rental, and keep the favorable loan terms.

Can I use projected rental income to qualify for the loan?

Yes, in many cases. Lenders will often count a portion of the projected rental income from the non-owner-occupied units toward your qualifying income. The exact rules depend on the loan type and lender.

What is the biggest risk of house hacking?

Living next to your tenants. If you have difficult tenants — noise issues, late payments, personality conflicts — you deal with it literally at home. Strong tenant screening before you sign a lease is essential.

Does house hacking work in expensive cities?

It depends on the numbers. In high-cost markets, rents are also higher, so the offset can still be meaningful. Run the math on specific properties in your market rather than assuming it does or does not work.

What Is House Hacking? How Buying a Duplex Can Pay Your Mortgage

House hacking is the single best on-ramp to real estate investing most people have never heard of. Buy a small multifamily property, live in one unit, rent out the rest. Your tenants offset your mortgage. You build equity. You learn to be a landlord from inside the building. It’s not a trick - it’s just a smarter way to get started.

What you’ll learn:

How the numbers actually work on a house hack
Why the financing terms are dramatically better than a pure investment property
What to look for when buying your first property
The one real downside (and how to handle it)

How does house hacking actually work?

House hacking works by using your tenants’ rent to cover part - or all - of your mortgage. You buy a 2-4 unit property, live in one unit, and rent out the others. The income from those units directly reduces what you pay to live there.

Here’s a real example. You buy a duplex for $350,000. You put 5% down using a conventional owner-occupied loan - $17,500 plus closing costs. Your mortgage, taxes, and insurance run $2,400 per month. The other unit rents for $1,500 per month. Your actual housing cost: $900 a month.

Compare that to renting a comparable apartment in most markets. You’re likely paying less - while building equity, gaining landlord experience, and having a tenant pay down your loan.

With a triplex or fourplex, it gets even better. Two or three rental units may cover the entire mortgage. In some markets, you live for free while your tenants build your net worth.

Why is the financing so much better for house hacking?

Owner-occupied multifamily gets dramatically better loan terms than a pure investment property. This is the most underappreciated part of house hacking.

Investment property (no owner occupancy):

Conventional loan: 20-25% down required
Interest rate typically 0.5-1% higher than primary residence rates

Owner-occupied multifamily (house hacking):

FHA loan: 3.5% down on 2-4 unit properties
Conventional: as low as 5% down (Fannie Mae updated this in 2023)
Primary residence interest rates

On a $350,000 property, the difference between 5% down and 25% down is $70,000. That’s not a small number. That’s the difference between getting started and waiting years to save more.

What counts as house hacking?

The classic version uses a 2-4 unit property - duplex, triplex, fourplex. This is the most straightforward approach because these properties qualify for residential financing, tenants have their own separate units and entrances, and management stays simple at small scale.

You’ll sometimes hear house hacking used to describe renting a room in a single-family home or renting an ADU. Those work too. But the multifamily version gives you the cleanest tenant separation and the clearest path to growing from there.

What real landlord experience do you get?

House hacking teaches you things no book or course can. You learn to screen tenants before someone moves in next door. You notice maintenance issues early because you live there. You handle a real lease, collect real rent, and navigate the landlord-tenant relationship with real stakes - but at a scale where mistakes don’t ruin you.

Most successful landlords with larger portfolios started with a small multifamily. The lessons from a duplex or fourplex are permanent. The consequences of getting things wrong are limited. That combination is hard to beat as a starting point.

What should I look for when buying a house hack property?

Run the numbers as if you weren’t living there. If the property cash-flows as a pure rental - or at least breaks even - you have a solid deal regardless of your personal housing situation. If it only works because you’re occupying one unit, you have a fragile deal.

Inspect every unit, not just the one you’ll live in. You’re buying this as a landlord, not just a homebuyer. Look at the roof, plumbing, electrical, and HVAC across the whole building. Deferred maintenance in a rental unit is your problem from the moment you close.

Review existing tenants’ leases before closing. Inherited tenants come with inherited lease terms. You can’t immediately change what’s already in place, so know what you’re taking on.

Verify rents against the actual market. Don’t take the seller’s word for what the units rent for. Check comparable active listings yourself. Below-market rents are upside. At-market rents are a ceiling. Know which one you’re buying.

What’s the tradeoff I need to know about?

Living next to your tenants is the honest downside. Noise, maintenance requests at inconvenient hours, personality friction - these happen more when you share a building. It’s real, and pretending otherwise doesn’t help you.

The flip side: you’re highly motivated to keep the property in good shape and the tenant relationship functional because it’s also your home. A lot of landlords find that proximity makes them better at the job. And strong tenant screening upfront - which you should be doing regardless - eliminates most of the problem before it starts.

Is house hacking right for me?

It makes the most sense if you want to get into real estate with less upfront capital, you’re open to living in a multifamily for at least a year, and you want hands-on landlord experience before managing properties you don’t live in.

It’s less suited to you if you’re not willing to share a building with tenants under any circumstances, or if your life situation makes moving genuinely difficult right now.

For most people who are serious about becoming landlords, a house hack is the smartest first move on the board.