House Hacking in Texas: Buying a Duplex With an FHA Loan
A teacher in San Antonio asked me a question this spring that I hear more and more across Texas: “How do people my age afford a house AND get ahead?” One honest answer is that some of them buy a duplex instead of a house. They live in one unit, rent out the other, and let that rent carry part of the mortgage. Investors call it house hacking. Lenders call it an owner-occupied 2-to-4 unit purchase, and that distinction matters, because owner-occupied financing comes with down payments and rates that no investment loan can touch. I am Anthony Ferrando, a mortgage loan originator licensed across Texas (NMLS# 1919613), and in this post I will walk one composite buyer through the numbers so you can see exactly how it works.
Why now? With the average 30-year fixed rate at 6.43 percent for the week ending July 2, 2026 (Freddie Mac Primary Mortgage Market Survey), payment relief matters. Rent from the unit next door is one of the few forms of relief a buyer can actually control.
Key points:
- FHA (Federal Housing Administration) loans allow 3.5 percent down on a duplex, triplex, or fourplex you live in.
- Conventional loans now allow 5 percent down on owner-occupied 2-to-4 unit homes, and eligible veterans can use a VA loan with zero down.
- Lenders typically count 75 percent of the other unit’s market rent toward your qualifying income.
- You must move in within 60 days and live there at least one year.
- On 3-and-4 unit FHA purchases, the property must pass a self-sufficiency test: 75 percent of total market rent has to cover the full payment.
- All of it is subject to credit, income, and property qualifications.
What is house hacking?
House hacking means buying a small multifamily property (2 to 4 units), living in one unit as your primary residence, and renting out the rest. Because you occupy the property, you qualify for owner-occupied financing: FHA with 3.5 percent down, conventional with 5 percent down, or VA with zero down for eligible veterans. The rent you collect offsets your housing cost and can help you qualify for the loan itself.
The strategy sits squarely inside the loan programs I originate every day. A non-occupant investor buying the same duplex would need a bigger down payment and would pay a higher rate. Occupancy is the entire advantage, which is also why lenders enforce it seriously. Misrepresenting occupancy to get better terms is mortgage fraud, so this strategy only fits buyers who honestly plan to live in the property.
A worked scenario: a $385,000 duplex in San Antonio
Meet our composite buyer, a 27-year-old teacher I will call Marcus. He is not a real client, but his numbers mirror files I see across Texas. Marcus earns $5,400 a month, has a 700 credit score, a $350 car payment, and about $28,000 saved. A single-family home near his school feels tight. Instead, he finds a duplex listed at $385,000 where the second unit should rent for about $1,400 a month per the appraiser’s rent schedule.
With FHA at 3.5 percent down, Marcus needs $13,475 down plus closing costs and the upfront mortgage insurance premium, which can be financed. His loan comes to roughly $371,500. At a 6.43 percent illustrative rate, principal and interest run about $2,331 a month, plus FHA monthly mortgage insurance of roughly $170, plus taxes and homeowners insurance. Call the full payment about $3,150 in round numbers. That figure would swamp him alone. With $1,050 of counted rental income (75 percent of $1,400) added to his $5,400 salary, his qualifying income becomes $6,450, and the out-of-pocket cost of living there drops to about $1,750 once the actual $1,400 rent check arrives each month. Every number here is illustrative, not a quote.
How does rental income count toward qualifying?
Lenders count a portion of the market rent from the units you will not occupy, typically 75 percent, toward your qualifying income. The figure comes from the appraiser’s comparable rent schedule, not from what the listing agent hopes the unit fetches. The 25 percent haircut accounts for vacancy and maintenance. You generally do not need to be an experienced landlord for the rent on the property you are buying to count.
That extra income lowers your DTI (debt-to-income ratio), which is the number most likely to cap what you can borrow. In Marcus’s case, counted rent moves his housing ratio from unaffordable to approvable. If you want to see exactly how lenders run that math, I broke it down in my post on how DTI is calculated in Texas.
What are the down payment options on a 2-to-4 unit home in Texas?
Three owner-occupied programs cover nearly every house-hacking purchase in Texas. FHA allows 3.5 percent down with a 580-plus credit score. Conventional financing allows 5 percent down on owner-occupied 2-to-4 unit homes. VA allows eligible veterans and service members to buy with zero down. All three require you to occupy one unit as your primary residence, subject to credit, income, and property qualifications.
| Program | Minimum down (owner-occupied duplex) | Notes |
|---|---|---|
| FHA | 3.5 percent | Upfront and monthly mortgage insurance; higher loan limits on 2-4 units than 1-unit |
| Conventional | 5 percent | PMI (private mortgage insurance) applies below 20 percent down and can later be removed |
| VA | 0 percent | Eligible veterans and service members; funding fee unless exempt; residual income rules apply |
Which one wins depends on your credit profile, savings, and how long you plan to hold the property. FHA’s easier credit terms often fit first-time buyers, while a stronger borrower may pay less over time with conventional PMI that eventually drops off. My complete Texas FHA guide covers that program’s mechanics in depth, and current pricing context lives on my Texas mortgage rates page.
What is the FHA self-sufficiency test?
On 3-and-4 unit purchases, FHA adds a hurdle that duplexes skip: 75 percent of the property’s total market rent, including the unit you will occupy, must equal or exceed the full monthly payment (principal, interest, taxes, and insurance). If it falls short, FHA will not insure the loan no matter how strong your income is. In practice, this test knocks out many triplexes and fourplexes in higher-priced Texas metros.
This is one reason duplexes are the most common house hack in cities like San Antonio, Fort Worth, and Houston. The math is simpler, the tenant count is manageable for a first-time landlord, and the self-sufficiency test never enters the picture. At Mortgage Austin we see far more duplex files close than triplex or fourplex files for exactly these reasons.
The occupancy rule, and what happens after year one
Owner-occupied financing requires you to move into your unit within 60 days of closing and live there for at least one year. After that year, the standard loan terms let you move out, keep the property as a full rental, and keep the same loan. Many Texas buyers repeat the play: live in the duplex for a year or two, move up to the next home, and hold the first property as a rental with its owner-occupied financing intact.
Plan for the parts the spreadsheet hides. You will live next to your tenant. You will field the 10 p.m. water heater call. Budget reserves for vacancies and repairs even though the loan may not require them, because the rent check is not guaranteed every month of every year.
Frequently Asked Questions
Can I buy a duplex in Texas with 3.5 percent down?
Yes, with an FHA loan, as long as you live in one of the units as your primary residence. On a $385,000 duplex that is $13,475 down, plus closing costs. Approval is subject to credit, income, and property qualifications.
Does rental income from the other unit help me qualify?
Usually yes. Lenders typically count 75 percent of the market rent from the units you will not occupy, based on the appraiser’s rent schedule. On a unit renting for $1,400, about $1,050 a month gets added to your qualifying income, which lowers your debt-to-income ratio.
How long do I have to live in the property?
Move in within 60 days of closing and occupy your unit for at least one year. After that, you can generally move out and keep the property as a rental under the same loan. Misstating your occupancy plans to get owner-occupied terms is mortgage fraud.
Can I house hack with a VA loan in Texas?
Yes. Eligible veterans and service members can buy a 2-to-4 unit property with zero down using a VA loan, as long as they occupy one unit. Rental income from the other units can help with qualifying, and a funding fee applies unless you are exempt.
Do triplexes and fourplexes have extra FHA rules?
Yes. FHA applies a self-sufficiency test to 3-and-4 unit properties: 75 percent of the total market rent must cover the entire monthly payment. Many triplexes and fourplexes in higher-priced Texas metros fail this test, which is why duplexes are the most common house hack.
Is house hacking the same as buying an investment property?
No. House hacking uses owner-occupied financing because you live in the property, which brings lower down payments and better rates than investment loans. A property you never occupy requires investment financing with a larger down payment, often 15 to 25 percent.
If you are weighing a duplex against a single-family home anywhere in Texas, reach out and let’s talk through your options. We will run your numbers both ways, no pressure, and you will know which path actually fits your budget and your plans.
Anthony Ferrando | Mortgage Loan Originator | NMLS# 1919613 | Ferrando Financial LLC NMLS# 2403080 | Licensed in Texas. This is not a commitment to lend. Loan approval is subject to credit, income, and property qualifications. All payment figures and the buyer scenario are illustrative composites, not a quote or an offer of credit; program requirements vary by lender and loan. Rate data: Freddie Mac Primary Mortgage Market Survey, week ending July 2, 2026. Equal Housing Lender.
