What is house hacking?

House hacking means buying a small multi-unit property (or a home with extra rooms or an ADU), living in one part, and renting out the rest so the tenants cover most or all of your mortgage. It's the most accessible way into real estate because you can use a low-down-payment owner-occupant loan instead of a 20–25% investor down payment.

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Why it works

Owner-occupant loan options

LoanTypical downNotes
FHA3.5%1–4 units; must live in one for ~1 year; mortgage insurance applies.
Conventional (owner-occ)5%+1–4 units; PMI drops off at 20% equity.
VA0%Eligible veterans/service members; 1–4 units; no PMI.

All require you to actually occupy a unit — owner-occupant fraud is a serious matter. Confirm current terms with a lender.

Worked example

You buy a $400,000 duplex with 3.5% down (~$14,000) via FHA. Total payment (mortgage + taxes + insurance + MI) is about $2,900/mo. You live in one unit and rent the other for $1,800/mo.

Your housing cost = $2,900 − $1,800 = $1,100/mo

If a comparable apartment would cost you $1,800/mo, you're saving ~$700/mo and building equity. In a triplex or fourplex, two or three rents can push your housing cost toward zero — and the day you move out, every unit rents and the property cash-flows.

What to watch

✓ Makes it work

  • Rents that cover most of PITI
  • Reserve for vacancy + repairs
  • A unit/layout you can live in for a year
  • It still cash-flows as a full rental later

✗ Common mistakes

  • Ignoring it must work after you leave
  • Forgetting mortgage insurance & capex
  • Overpaying because "I'll live there"
  • Underestimating landlord-next-door reality
Model a duplex or fourplex in the free rental calculator: enter the total rent (including your future unit) and expenses to see whether it cash-flows as a full rental after you move out — the real test of a house hack.
Open the rental calculator →