Yes, you can buy a duplex, triplex or fourplex with a home loan meant for owner-occupants, as long as you live in one of the units. FHA, VA and conventional loans all allow two to four units as a primary residence. The rules are tighter than on a single-family house: conventional loans need more down and more reserves, FHA adds a rent test on three and four units, and rent from the other units counts only the way each program says it counts. Five units and up is commercial lending, which is a different world.
Occupancy is what opens the door
Living in one unit is what makes it a primary residence. People call it house-hacking, but on the application it's simply your principal residence, with the same occupancy promise as any primary home: you intend to move in and live there. If no owner will live in the building, it's an investment property, financed under investment rules with bigger down payments, more reserves and different pricing.
The rules by program
FHA
- Eligible: FHA insures single family properties with up to four dwelling units, and the lender completes form HUD-92561 for two to four units (HUD 4000.1 II.A.1.b.iv(B)).
- Financing: the same maximum financing rules as a one-unit home, based on your credit score (HUD 4000.1 II.A.2.b). An ADU on a duplex or triplex counts as an additional unit.
- Self-sufficiency test for three and four units: the appraiser's fair market rent from all units, including the one you'll live in, minus the greater of the appraiser's vacancy and maintenance estimate or 25%, has to cover the full payment of principal, interest, taxes and insurance (HUD 4000.1 II.A.1.b.iv(B)(3)(c)). If the building doesn't pass, it doesn't work for FHA, no matter how strong your own income is. Two-unit properties don't have this test.
- Rent as income: on a purchase with no rental history, FHA uses 75% of the lesser of the appraiser's fair market rent or the lease, and adds it to your income. It can't be used to reduce the mortgage payment itself (HUD 4000.1 II.A.4.c.xii(I)(2)).
- Reserves: three months of the full payment after closing on three- and four-unit properties (HUD 4000.1 II.A.4.d.i(C)(2)).
The rules cited here read the same in Update 17 of HUD's handbook, the version in effect today, and in Update 18, issued Aug 12, 2026, which lenders must use by Nov 10, 2026. More on FHA basics in how FHA loans work.
Conventional (Fannie Mae)
- Maximum loan-to-value: for a two- to four-unit principal residence purchase underwritten in DU, Fannie Mae's maximum is 95% LTV, compared with 97% for a one-unit fixed-rate loan. High-balance loans on two to four units have lower limits (Fannie Mae Eligibility Matrix, Aug 5, 2026).
- Your own money: when gift funds are involved on a two- to four-unit principal residence above 80% LTV, Fannie Mae requires a minimum contribution from your own funds before gifts can supplement (Selling Guide B3-4.3-04).
- Reserves: DU requires six months of reserves for a two- to four-unit principal residence (Selling Guide B3-4.1-01). See how reserves work.
- Rent as income: on a purchase, the lender takes 75% of the gross rent from the appraiser's rent schedule (Form 1025) or a transferring lease, then subtracts the full payment. If you have 12 months or more of property management experience, a positive result can count as income. With less than 12 months, the rent can only offset the payment. A negative result counts as debt either way (Selling Guide B3-3.8-02, dated Sept 2, 2026).
- HomeReady: allows one- to four-unit principal residences, with its own income limit.
VA
VA says you can use a VA purchase loan to buy a single-family home with up to four units (VA.gov purchase loan page, updated Jan 7, 2026), as long as you occupy it. VA has its own rules for counting rent from the other units and for reserves on multi-unit purchases. I check the current VA handbook requirements on each file rather than quote them from memory.
Loan limits
Conforming and FHA loan limits are higher for two, three and four units than for one, and they're set by county each year. FHFA publishes the 2026 conforming limits for every county, and HUD publishes FHA limits by county. Check Tarrant, Johnson or Parker County on those official lists, or ask me and I'll pull the current number.
Lender layer
We follow the agency guidelines above with no extra company overlays beyond our FHA minimum credit score of 580. Each file still has to be approved.
FHA or conventional: how to compare
There isn't one right answer. It depends on the building and on you. Here's how I usually frame it:
- Cash needed. FHA's minimum investment doesn't go up with the unit count, while Fannie Mae's maximum loan-to-value drops from one unit to two to four units. If cash is your tightest constraint, FHA often gets a closer look first.
- The building's rent. On a triplex or fourplex, FHA's self-sufficiency test can rule a building out even when you qualify personally. A conventional loan has no building-level rent test, but it does want six months of reserves in DU.
- Your landlord history. Without 12 months of property management experience, Fannie Mae lets the rent offset the payment but not add to income. FHA adds 75% of the qualifying rent to your income either way.
- Mortgage insurance. FHA and conventional handle mortgage insurance very differently over the life of the loan, so compare the full cost side by side on your Loan Estimate, not just the down payment.
- Condition. FHA's minimum property requirements apply to every unit. An older building with deferred maintenance may need repairs before an FHA loan can close.
Two units versus three or four
A duplex is the friendliest step up. On FHA, it skips the self-sufficiency test and the extra reserve requirement that kick in at three units. On conventional loans, high-balance limits are also tighter on three and four units than on two. If you're on the fence between a duplex and a fourplex at a similar price, the duplex is usually the simpler file.
How the rent actually gets counted
This is where most of the confusion lives. Buyers hear "the tenants pay your mortgage" and assume all of the rent counts. It doesn't. Every program discounts it, usually to 75%, to allow for vacancy and upkeep, and FHA and Fannie Mae use it differently:
- FHA adds the net rent to your income. On three and four units, the building also has to pass self-sufficiency on its own.
- Fannie Mae subtracts the payment from 75% of the rent and either adds the positive result to income (with 12 months of landlord experience) or uses it only to offset the payment (without).
Rent doesn't erase your other debts. Car payments, student loans, credit cards and the full payment on the whole building all go into your debt-to-income ratio. For the bigger picture, see how rental income is counted.
The appraisal is different
A two- to four-unit appraisal uses Fannie Mae Form 1025, the Small Residential Income Property Appraisal Report. FHA requires it too when rent is used (HUD 4000.1 II.A.4.c.xii(I)). The appraiser values the building using sales of comparable small multi-unit properties and reports market rent for each unit.
Comparable sales can be thin. Fort Worth has pockets of older duplexes and fourplexes, and condition varies a lot from building to building. On FHA, the appraiser also checks minimum property requirements for every unit, and repairs anywhere in the building can become loan conditions.
Zoning and legal units
The appraiser reports zoning and whether the current use is legal. A duplex built as a duplex in an area zoned for it is simple. A building that was legal when built but no longer fits current zoning is usually legal nonconforming, and the guide decides how that affects the loan, often based on whether it could be rebuilt after a loss. A single-family house carved into extra units without permits is a different problem: the lender may not give value or rent credit for those units, or may decline the property. Checking the city's records on unit count before an offer avoids a late surprise.
Fictional example
This example is made up to show how the rules stack.
Andre wants a fourplex near the Near Southside and will live in one unit. The other three are vacant.
- With FHA, the appraiser reports fair market rent for all four units. After the 25% vacancy and maintenance factor, that net rent has to cover the full payment, or the building fails self-sufficiency. If it passes, 75% of the rent from the three units he won't live in is added to his income, and he needs three months of payments in reserve after closing.
- With a conventional loan, DU will ask for six months of reserves. Because Andre has never been a landlord, the rent can only offset the payment, not add to his income.
- Either way, the numbers have to be run on the actual building and its appraisal before anyone promises the rent will carry it.
Common mistakes
- Assuming the same down payment as a single-family house. On conventional loans, it isn't.
- Counting 100% of the rent. Programs discount it.
- Ignoring reserves. Multi-unit purchases often need months of payments left in the bank.
- Skipping the zoning check. Unpermitted units can sink an appraisal.
- Planning to move out right away. You're promising to live there. See occupancy rules.
What to collect before you offer
- Current leases for every occupied unit and the rent roll.
- Proof that tenants actually pay, if the seller will share it.
- Security deposits being held, which transfer to you at closing.
- Utility setup: which units are separately metered and what the owner pays.
- Age and condition of roofs, HVAC and water heaters for each unit.
- Any city rental registration or inspection rules.
- On your side: income documents, asset statements for down payment and reserves, and any landlord history.
After closing
Once you live in one unit and rent the others, you're running a small rental business. Rental income and expenses go on your tax return, and those returns become the record for any future refinance. You'll need insurance that covers a building with tenants, so tell your agent. In Texas, the homestead exemption applies to the part of the property you occupy, and the appraisal district handles how that's divided.
Next step
Found a duplex, triplex or fourplex you'd live in? Send me the listing and I'll run it through FHA and conventional rules side by side, including the rent test and reserves, before you write an offer. Book a call, or start an application.
Related questions
Sources
Links checked Oct 21, 2026.
- HUD Handbook 4000.1, II.A.1.b.iv(B)(2) to (4) property types and self-sufficiency; II.A.4.c.xii(I) rental income; II.A.4.d.i(C)(2) reserves (Update 17, issued Nov 26, 2025, the version in effect today; Update 18, issued Aug 12, 2026, may be adopted now and must be used by Nov 10, 2026, and does not change the rules cited here): https://www.hud.gov/sites/default/files/OCHCO/documents/40001-hsgh-Update-17.pdf
- Fannie Mae Eligibility Matrix (Aug 5, 2026): https://singlefamily.fanniemae.com/media/20786/display
- Fannie Mae Selling Guide B3-3.8-02, Rental Income from the Subject Property (dated Sept 2, 2026): https://selling-guide.fanniemae.com/sel/b3-3.8-02/rental-income-subject-property
- Fannie Mae Selling Guide B3-4.1-01, Minimum Reserve Requirements (dated Aug 7, 2024): https://selling-guide.fanniemae.com/sel/b3-4.1-01/minimum-reserve-requirements
- Fannie Mae Selling Guide B3-4.3-04, Personal Gifts (dated Feb 4, 2026): https://selling-guide.fanniemae.com/sel/b3-4.3-04/personal-gifts
- VA.gov, VA-backed purchase loan (last updated Jan 7, 2026): https://www.va.gov/housing-assistance/home-loans/loan-types/purchase-loan/
- FHFA Conforming Loan Limits, 2026 county list (page updated Oct 14, 2026): https://www.fhfa.gov/data/conforming-loan-limit
About the author: McKade Lively, NMLS 2704474, American Pacific Mortgage Corporation dba True North Home Loans, NMLS 1850.
Equal Housing Opportunity.
Last reviewed: Oct 2026