See how living in one unit and renting the others can cut your housing cost to near zero while you build equity.
Use this free house hacking planner to compare buying a 2–4 unit property and renting out the extra units versus continuing to rent. See your net monthly housing cost, monthly savings, and 5-year wealth gap, instantly.
Direct answers to the most common questions, in plain language. Skim if you're in a hurry; dig deeper below.
Buy a small multi-unit, live in one, rent the others.
House hacking is when you buy a 2–4 unit property (duplex, triplex, or fourplex), live in one unit as your primary residence, and rent out the others. The rental income offsets your mortgage, often cutting your shelter cost close to zero — or turning it into a small profit.
Yes — 3.5% down on up to a 4-unit property.
The FHA allows just 3.5% down on owner-occupied 1–4 unit properties. That means you can buy a fourplex with the same down payment as a single-family home, as long as you live in one of the units for at least the first year.
Often $1,000–$2,500 vs paying market rent.
A typical house hacker pays $500–$1,500 per month in net housing cost versus $2,000–$3,500 to rent the same neighborhood. On top of that, they build $400–$800 of equity per month through principal paydown — money that goes into their net worth instead of a landlord's.
No — most owner-occupancy rules require just 12 months.
FHA and most conventional owner-occupied loans require you to live in the property for at least 12 months. After that, you can move out, rent the last unit, and repeat the strategy on your next property.
The mechanics in short answers — no jargon, no upsell.
A duplex, triplex, or fourplex qualifies for owner-occupied financing — meaning much smaller down payments and better rates than an investment loan.
The rent from the other units flows in monthly. We subtract it from your true housing cost (mortgage + tax + insurance + maintenance + vacancy reserve).
Every month, a chunk of your mortgage payment becomes equity. Because rent is covering most of the payment, you're building net worth with their money, not yours.
Once you've satisfied the owner-occupancy requirement, you can move out, rent your unit too, and roll the strategy into your next FHA purchase.
Designed so anyone can model their situation in under a minute, with or without a finance background.
Let tenants pay 60–100% of your mortgage. Some house hackers live for free, or are paid to live there.
Owner-occupied FHA loans on 2–4 units mean you can house hack with a fraction of a normal down payment.
A $500k duplex builds principal twice as fast as a $250k starter home, with the same out-of-pocket cost.
Depreciation, repairs, and interest on the rented portion are deductible. Your CPA will love you.
After 12 months you can move out, convert it to a full rental, and FHA into your next house hack.
Your mortgage payment is fixed. Rents go up. Year by year, your effective housing cost falls instead of rising.
Everything you might ask before, during, or after using this tool.
For most people, yes. The math almost always favors house hacking over renting because your tenants are paying down your mortgage while you live there. The trade-offs are real — you're a landlord, you live next to your tenants, and you need to screen carefully — but the financial gap usually compounds into six figures within 5–10 years.
With an FHA loan, just 3.5% down on a 2–4 unit owner-occupied property. VA loans can be 0% down for eligible veterans. Conventional owner-occupied multi-unit loans typically require 15–25% down. The FHA route is the most popular because it has the lowest barrier to entry.
Yes — FHA and other owner-occupied loans require you to live in the property as your primary residence for at least 12 months. After that, you can move out and convert the entire property into a rental, or buy another house hack with another owner-occupied loan.
Yes. An accessory dwelling unit (basement apartment, garage conversion, in-law suite) on a single-family property can produce real rental income. The math here works almost identically — just enter the ADU rent as "rent per other unit" and set total units to 2.
You can deduct the rental portion's expenses — mortgage interest, property tax, insurance, repairs, depreciation, utilities you cover. For a fourplex where you occupy one unit, roughly 75% of those costs are deductible against rental income. A CPA who understands real estate is worth the fee.
You become a landlord. You'll deal with tenant turnover, repairs, late-night calls, and occasional vacancy. You also lose some privacy. The math wins, but you have to want the lifestyle — or at least tolerate it for a year or two to get the financial head start.
Yes, often. Lenders typically allow 75% of projected market rent (verified by an appraiser's rent schedule) to be added to your qualifying income. This means a house hack can let you afford a much larger mortgage than a single-family home of equivalent price.
A pure rental property requires 20–25% down and a higher interest rate, because it's an investment loan. House hacking uses a primary-residence loan (3.5–15% down, lower rate) — you just happen to rent the other units. The financing advantage alone is worth tens of thousands.
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House hacking is the simplest real estate strategy that works. You buy a small multi-unit property — a duplex, triplex, or fourplex — live in one of the units, and rent the others. The rental income from your tenants offsets a huge portion of your mortgage, so your true cost of housing drops to a fraction of what rent would have been.
It works because of a quirk in U.S. mortgage policy: as long as you live in the property for the first 12 months, you qualify for owner-occupied financing on up to four units. That means FHA loans at 3.5% down, conventional loans at 15% down, or VA loans at 0% down. Pure investment-property loans, by contrast, demand 20–25% down and charge a premium on the rate.
The Federal Housing Administration insures owner-occupied mortgages with very low down payment requirements. The 3.5% minimum applies to 1–4 unit properties, as long as the buyer occupies one of the units as their primary residence. On a $500,000 fourplex, that's $17,500 down — versus $100,000+ to buy the same property as an investor.
There are caveats: FHA loan limits vary by county, you'll pay mortgage insurance until your equity reaches 20%, and the property has to pass an FHA appraisal. But for a first-time house hacker, FHA is almost always the cheapest way in.
Don't want a multi-unit? An ADU (accessory dwelling unit) — a basement apartment, garage conversion, or in-law suite on a regular single-family property — gives you most of the same math. You're still living in the main home, but the ADU produces $800–$2,000+ in monthly rent depending on your market.
Some cities have made ADUs much easier to permit in recent years, which has quietly created one of the best house-hacking opportunities of the decade — buy a single-family home with a permitted ADU and you get owner-occupied financing on what is essentially a duplex.
The rented portion of a house hack is, for tax purposes, a rental property. That means you can deduct your pro-rata share of mortgage interest, property tax, insurance, utilities, repairs, and depreciation against the rental income. For a fourplex where you occupy one unit, roughly 75% of those costs flow through as deductions.
Depreciation is the underrated piece: the IRS lets you deduct a small fraction of the building's value each year as "wear and tear," even though the property is usually appreciating. For many house hackers, depreciation alone makes the rental income tax-free or near it for years.
Two short notes worth reading before you trust any number on this page.
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