House Hacking

· 2 min read
House hacking is living in one part of a property while renting out the rest — and it’s the single best way to start investing…

House hacking is living in one part of a property while renting out the rest — and it’s the single best way to start investing in real estate with almost no extra risk.

The classic version: buy a duplex, live in one unit, rent out the other. Your tenant’s rent covers most or all of your mortgage payment. You live for free (or close to it) while building equity in a property someone else is paying for.

How House Hacking Works

Because you’re living in the property, you qualify for owner-occupied financing: 3.5% down with an FHA loan or 5% down conventional. That’s dramatically cheaper than the 20-25% down required for investment property loans.

Buy a $300,000 duplex with 3.5% down ($10,500). One unit rents for $1,400/month. Your total mortgage payment (PITI) is $2,100. You’re paying $700/month to live in a property you own — probably less than a one-bedroom apartment nearby. Meanwhile, you’re building equity and gaining landlord experience.

House Hacking Variations

It’s not limited to duplexes:

  • Rent by the room: Buy a 4-bedroom house, live in one room, rent out three. College towns are perfect for this.
  • ADU (Accessory Dwelling Unit): Build or convert a garage apartment, basement unit, or backyard cottage.
  • Short-term rental: Live in the main house and Airbnb the basement or guest suite.
  • Triplex/fourplex: FHA loans work on up to 4 units as long as you live in one. A fourplex is the holy grail of house hacking.

The Fourplex Sweet Spot

A fourplex purchased with FHA financing is the most powerful house hack. Three units generate rent while you live in the fourth. In many markets, three units of rent more than cover the entire mortgage, giving you positive cash flow while you live there for free.

After 12 months (the FHA occupancy requirement), you can move out and rent all four units. Now you own a cash-flowing fourplex that you bought with just 3.5% down. Repeat the process with a new property.

Tax Benefits

The rental portion of your property qualifies for depreciation deductions, and you can deduct the rental portion of mortgage interest, property taxes, insurance, and maintenance. If you rent out half the property, half of those expenses become tax deductions.

When you sell after two years, you may qualify for the $250,000/$500,000 capital gains exclusion on the portion you lived in — a benefit investment properties don’t get.

Calculate your house hacking numbers with our mortgage calculator and start planning with our buying guide. More strategies in the glossary.