Investing

House Hacking: Buy a Duplex or Fourplex with FHA or VA

Updated September 10, 2026

Patrick's Quick Answer

House hacking means buying a 2 to 4 unit property, living in one unit, and letting the other units' rent carry the mortgage, and the federal loan programs are built for it: FHA on a 3.5% down payment for buyers who occupy one unit, and VA at zero down for eligible veterans and service members, with no PMI. Lenders count 75% of the projected rent as income, which is why a fourplex can qualify where a house the same price would not. In 2026, Bexar County FHA limits run up to $714,000 for a duplex and $1,072,600 for a fourplex. This is the fastest legal way to own real estate with your tenants paying the bill.

Converted Texas fourplex with four mailboxes beside the front porch in warm afternoon light

PATRICK'S QUICK ANSWER

Yes, you can house hack a duplex or fourplex with FHA or VA, and it is the smartest move for most first-time owners. FHA lets you buy a multi with 3.5% down as long as you live in one unit, and VA allows up to four units with zero down. I weigh the unit rents, your qualification, and whether the other units cover the payment. One purchase can produce a home and rental income.

Patriot Nation, the fastest path to rental wealth does not start with a landlord hat and a down payment on an investment property, it starts with you moving into one unit of a duplex or fourplex and letting your neighbors pay the mortgage. House hacking is real, and FHA and VA are its best friends. Here is how the financing works in 2026, the math that makes it work, and the honest workload.

Find me a 2 to 4 unit near your work and your budget.

I run the FHA and VA qualification on the actual building, rents included, so you know the real payment before you fall for the floor plan.

The FHA path: 3.5% down on your own fourplex

FHA will finance a 2 to 4 unit property at 3.5% down when you occupy one unit as your primary residence. That single requirement, owner occupancy, is the entire trick, because it unlocks first-time-buyer financing on an income property. Two rules to know:

  • Rental income counts. FHA uses roughly 75% of the projected market rent from the other units to offset the housing payment, which is the qualification engine.
  • 3 and 4 unit self-sufficiency. For triplexes and fourplexes, FHA requires the property's rental income to cover the mortgage payment at 75% of rent, a stricter check than on a duplex.
  • Limits are generous in Bexar County: 2026 FHA limits run up to $714,000 for a duplex, $863,100 for a triplex, and $1,072,600 for a fourplex, so the room is real.

The self-sufficiency test is why the fourplex math runs best on a priced-right building, and it is exactly the kind of thing I model before you make an offer. The multi-family investing explainer covers the underwriting angles in more depth.

The VA path: zero down, no PMI, up to a fourplex

For eligible veterans and active-duty families, the VA loan finances up to a fourplex with zero down and no monthly mortgage insurance, as long as you occupy one unit. Rental income from the other units offsets the payment, and the only recurring cost is the VA funding fee for those who do not qualify for an exemption. Add military-area rental demand near JBSA, and a VA house hack around San Antonio can be the single best financial move a military family makes, and I will help you structure it before the next PCS.

The lender's math on rental income

Rounded example, not a quote

Say a fourplex rents at $1,200 per unit. The appraiser-estimated gross rent is $4,800 a month, and the lender counts 75% of that, about $3,600, against the housing payment.

Four units at $1,200 (example)$4,800 / month
Counted at 75%$3,600 / month
Full housing payment (example)$3,400 / month
Tenants cover the paymentyes, in this example

The 75% factor covers vacancy and maintenance by design, so the counted number is intentionally conservative. Your actual payment depends on price, rate, taxes, and insurance.

The rental income qualification explainer covers how different loan programs treat that 75% factor, and the full program-by-program comparison lives in the investment loan options guide.

The tenants pay the mortgage, but you run the building.

Vacancies, repairs, and tenants are real work. I pair the financing with the honest operating math so the house hack serves you instead of owning you.

Where the inventory sits in San Antonio

Multi-unit inventory is not spread evenly. The classic pockets:

  • Central San Antonio: older duplexes and fourplexes in established corridors, where price per unit stays within reach for first-time house hackers.
  • Near JBSA and the military footprint: constant rental demand from PCS families, a natural fit for a VA house hack.
  • University and hospital areas: reliable tenant pools and steady demand year round.
  • Northeast and north corridors: newer multi-unit inventory, often at higher price points with newer systems.

My San Antonio house hacking overview layers the market picture over this foundation, and the San Antonio community guide helps narrow the search by neighborhood.

The honest workload reality

House hacking is a job with a mortgage attached: tenant screening, rent collection, repairs, and the occasional 2 a.m. call. The money math works because you trade that work for equity, the tenants pay down the principal, and your own housing cost drops. Autopilot it with good systems and reserves, or hire management when the scale justifies it, but never pretend the work does not exist. The strategy overview in the multi-family guide includes the operating truth most sales offices skip.

Frequently Asked Questions

What is house hacking? Tap to expand
House hacking is buying a 2 to 4 unit property, living in one unit, and renting the others to cover a big share of the mortgage. You get owner-occupied financing on an income property, so the down payment and rate are better than investment terms, and your tenants build your equity for you.
Can I use an FHA loan on a duplex or fourplex? Tap to expand
Yes. FHA allows 3.5% down on 2 to 4 unit properties as long as you live in one unit, with rental income counting toward qualification and 3 to 4 unit properties subject to a self-sufficiency test. Bexar County's 2026 FHA limits run up to $714,000 for a duplex, $863,100 for a triplex, and $1,072,600 for a fourplex.
Can I use a VA loan on a multi-unit property? Tap to expand
Yes, for eligible veterans and service members, the VA loan can finance up to a fourplex with zero down as long as you occupy one unit. Rental income from the other units offsets the payment, and there is no PMI, which makes VA the most powerful house hacking tool in the country for those who qualify.
How does rental income help me qualify? Tap to expand
Lenders count a portion of the projected rent, typically 75%, as income or as an offset against the housing payment. On a fourplex renting $1,200 per unit, 75% of $4,800 is $3,600 a month that offsets the mortgage, which is why a multi-unit can qualify when a single-family home the same size would not.
Where does multi-unit inventory concentrate in San Antonio? Tap to expand
The older fourplex and duplex pockets concentrate in central San Antonio, near JBSA for military rental demand, and along established rental corridors and university areas, while newer multi-unit inventory is spread across the north and northeast corridors. A good agent with multi-unit experience is worth real money on these deals.

Move in as a buyer, not a renter, and let the building pay you back.

I finance and negotiate multi-unit purchases across San Antonio, from the central fourplex pockets to military rental corridors, and I will show you the real numbers before you commit to the landlord life.

Patrick Kevin Fagan portrait

Patrick Kevin Fagan

Senior Mortgage Loan Officer and Texas REALTOR | AXEN Realty LLC | Greater San Antonio and Texas Hill Country

Licensed Sales Agent | 454749 | TX

Sincerely, Patrick Kevin Fagan

FHA and VA multi-unit rules reflect published 2026 guidelines and FHA limit figures for Bexar County; loan limits and program details are confirmed at application. Rent and payment figures are labeled examples, not quotes.

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