Can You Buy a Duplex or Fourplex on an FHA Loan With Low Down?

The Quick Read: Yes, if you will live in one of the units as your main home. The low down payment applies to two-, three- and four-unit buildings, and rent from the other units can help you qualify. Duplexes are the simple case. Triplexes and fourplexes face one extra test on the building’s rent.

What Counts as a Duplex, Triplex or Fourplex?

FHA treats one- to four-unit homes as residential property. A duplex has two separate living units. A triplex has three. A fourplex has four. Each unit has its own kitchen, bath and entrance, and the building is legally a two-to-four-unit property, not a single house with a rented room.

Buildings with five or more units move to a different, commercial-style track. That is a separate world with its own rules, so this article stays with the two-to-four-unit range.

Two practical points come up often:

• Legal unit count matters. A house that was split into apartments without proper approval can be hard to finance. The appraiser and lender look at how the property is recorded and used.
• Condos are different. A unit inside a condo project needs the project itself to be FHA-approved before the loan can go through.

How Does the Low Down Payment Work on a Multi-Unit Home?

The structure is the same as on a single-family purchase. Across the wholesale programs Lendmire places FHA files with, maximum financing is 96.5% of the lesser of the price or appraised value. That leaves a 3.5% minimum investment, available from a decision score of 580. HUD has a lower tier for scores of 500-579 that requires a 10% investment, but the lenders behind these programs do not reach below 580.

The score is a starting line, not a promise. Some lenders set a higher floor than the program minimum. Your credit history, debts, reserves and the property all shape what the lender will accept.

Other pieces of the structure:

• Seller or other interested-party contributions can cover up to 6% of the price.
• A co-borrower who will not live in the home is allowed.
• Credit events carry HUD waiting periods. Two years must pass from a chapter 7 discharge, and three from a foreclosure.

Lendmire’s FHA loan programs page lays out the basics. Everything here depends on lender guidelines and a full review of your file. None of it is a commitment to lend.

The Occupancy Rule: What “Live in One Unit” Means

FHA is an owner-occupant program. You must move into one unit as your principal residence soon after closing and keep living there for at least a year. HUD’s occupancy rules are spelled out in Handbook 4000.1, and your lender applies the current version.

This is why an FHA loan on a fourplex is not an investor loan. If you want to buy a rental you will not live in, FHA is the wrong tool. You must say honestly at application that you intend to live there. Misstating your plans can cause serious problems with the loan.

Life changes. A job move or a growing family can shift your plans after the first year. At that point many owners move out and keep the building as a rental. The loan itself stays in place. HUD allows narrow exceptions to the one-FHA-loan-at-a-time rule, for example a relocation. Ask your lender how they apply them before you count on a second FHA purchase.

Duplex vs. Triplex vs. Fourplex: What Changes?

The unit count changes how hard the file is to approve. Here is the comparison:

The down payment line assumes you meet the credit minimum and the lender’s own rules. Some lenders ask for extra cash reserves on three- and four-unit files. The key difference is the building rent test, covered below.

How Does Rent Count Toward Qualifying?

Rent helps, but it does not count in full. With no rental history on the property, HUD’s rental income policy has the lender use 75% of the lesser of two figures: the appraiser’s fair market rent, or the rent in a signed lease. The other 25% covers vacancy and upkeep.

Three things follow from that:

1. The appraiser’s opinion drives the number. The seller’s listing or a hopeful rent roll does not.

2. Leases help. The lender will want the appraisal’s rent schedule and any leases that exist.

3. Your own unit does not produce rent. Only the units you do not occupy count toward your income. That is true even on a fourplex.

Say the appraiser’s market rent for a unit is higher than the existing tenant’s lease. The lender uses the lower figure. That can feel harsh when a seller is charging below-market rent. It is also a useful reality check on what the building really earns.

Short-term rentals are a gray area. Nightly-stay income generally does not help you qualify. Ask your lender before you build a plan around it.

After rent is counted, the rest of the file is underwritten like any FHA loan. The base ratios are 31/43, housing payment and total debt against income. Documented compensating factors can stretch them to 40/50 at the top tier, and the automated finding governs most files. Credit, debt and reserves all matter.

The Three- and Four-Unit Rent Test (With a Hypothetical)

This is where “yes” turns into “it depends.” On three- and four-unit buildings, the lender runs a building-level test in addition to your personal income. The appraiser’s market rent for all the units, including yours, is reduced for vacancy and upkeep. The full housing payment then has to fit within what is left. Duplexes are exempt. The exact wording of the test sits in the handbook, so confirm the current version with your lender.

Here is a hypothetical, with no dollar figures. Picture a fourplex where the reduced rent is 100 units of income and the full housing payment comes to 90. The building passes, with room to spare. Now picture a similar fourplex where the payment comes to 110. It fails, even if you earn plenty personally.

Note what the test measures. It uses the appraiser’s market rent, not what you plan to charge. Tenants paying below market hurt you only if the appraiser’s opinion is also low.

If the property fails, you have options:

• Negotiate the price down. A lower price means a lower payment against the same rent.
• Put more down. That shrinks the loan and the payment.
• Look at a smaller building. A duplex skips the test altogether.
• Look in another submarket. Higher rents relative to price pass more easily.
• Consider a different loan type. A conventional loan may fit better if your credit is strong and you can put more down.

What Should You Budget for Cash to Close?

The down payment is only one line. A cash-to-close plan for a small multi-unit building includes:

• The down payment, as a percentage of price.
• The upfront mortgage insurance premium, which is 1.75% of the base loan and is usually financed into the loan.
• Closing costs, which can be partly covered by seller contributions up to the 6% limit.
• Repairs the appraiser requires before the loan can go through.
• Reserves, which some lenders want on three- and four-unit files.
• A cushion for vacancy and early surprises.

Do not forget the monthly side. The payment includes principal, interest, taxes, insurance and the annual premium. That annual premium runs between 0.15% and 0.75% of the balance depending on term, loan amount and LTV. On a thirty-year loan above 90% LTV, it lasts the full term. At or below 90% LTV, it ends after eleven years. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.

HUD cut the annual premium for most new borrowers, per a summary of its mortgage insurance letter from the state housing finance agencies’ trade group. The bigger point is that mortgage insurance applies to every FHA loan. A bigger down payment trims the premium but does not remove it.

Property Condition and the Appraisal

The appraiser does two jobs on a multi-unit home. One is to value the building. The other is to give an opinion of market rent for the units. FHA also expects the property to meet basic safety and condition standards. A leaking roof, missing handrails or peeling paint in an older building can trigger required repairs before closing.

A few practical notes:

• Vacant units are fine, but they get an estimated rent. The appraiser’s opinion replaces a lease.
• Mixed condition is common. One tired unit can hold up a file.
• Ask which unit you plan to occupy. Pick one that will pass inspection, and plan to live there.

Loan Limits: Look Up Your County

FHA sets maximum loan amounts by county and by unit count. They change every year, and higher-cost areas get higher limits. A fourplex has a higher ceiling than a duplex. County loan limits apply to your file, so check your own county on HUD’s lookup tool rather than relying on a rule of thumb. HUD’s annual mortgage limits letter explains how the floor and ceiling are set.

FHA or Something Else? A Decision Guide

FHA is not always a more affordable path. The Consumer Financial Protection Bureau notes FHA tends to cost more than conventional for borrowers with good credit and a 10-15% down payment. It can often be a more affordable option for lower credit scores or smaller down payments.

This is a genuine toss-up for some buyers. A borrower with a 700-range score and 15% down may find conventional cheaper over time, since conventional mortgage insurance can end sooner. A borrower with thinner credit and 3.5% down may find FHA is the only workable route. A broker can compare both on your actual file. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.

Step by Step: Buying a Duplex or Fourplex With FHA

1. Get a pre-approval that names the unit count. Not every lender is comfortable with 3-4 unit files.

2. Find an agent who knows small multi-unit buildings. Rent comps matter as much as sale comps.

3. Collect leases and the rent roll before you make an offer.

4. Make an offer and order the appraisal. The rent schedule comes with it.

5. Check the 3-4 unit test early. Do not wait until late in the file.

6. Clear any required repairs.

7. Review your Loan Estimate and Closing Disclosure carefully. Both are standard on a consumer mortgage.

8. Move into your unit and meet the occupancy rule.

Landlord Realities and Honest Downsides

Owning a fourplex is a business inside your home. You will deal with repairs, turnover, utility metering and tenants who live a wall away from you. Vacancy is your problem as much as theirs, since your payment does not shrink when a unit sits empty. Multi-unit buildings can also take longer to sell than houses.

Ask yourself a few honest questions. Could you cover the full payment for a few months if two units went empty? Are you comfortable being the person tenants call? The upside is real, since rent can offset much of your housing cost, but it is not free money.

After the Occupancy Period

Many buyers stay in the building for years. Others move out after a year and keep it as a rental. Either path works with the same loan. If you stay, you may later want to tap equity. An FHA cash-out reaches 80% LTV on a home owned and occupied for 12 months before the case number. Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.

A buyer who already holds a low first mortgage on a fourplex has a different question. That is covered in Lendmire’s piece Can a Fourplex Owner With a Low First Mortgage Get an FHA Cash-Out?.

Key Terms Defined

Principal residence: The home where you actually live most of the year, which FHA requires you to occupy.

Fair market rent: The rent an appraiser estimates a unit would earn, regardless of what a tenant now pays.

Self-sufficiency test: The building-level check on three- and four-unit homes that the property’s reduced rent can carry the housing payment.

Mortgage insurance premium (MIP): The upfront and annual charges that insure an FHA loan for the lender.

Decision score: The credit score a lender uses to evaluate the file, which the 580 minimum refers to.

Next Step

If you are buying a home and want to see whether an FHA loan fits your file, Lendmire can help you compare the options and what each one asks of the file. A duplex that passes cleanly is a very different conversation from a fourplex that barely misses the rent test, and a quick look at the building’s rent picture can tell you which one you are holding.

For your own numbers, request a scenario review with Lendmire.

About Lendmire

Lendmire is a mortgage brokerage (NMLS# 2371349) licensed for consumer mortgage lending in 16 states, arranging FHA, VA, conventional and jumbo purchase and refinance loans through a wholesale lending network. Eligibility is determined by the lender on each file. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. HUD Handbook 4000.1

2. HUD Mortgagee Letter 2023-17 (rental income policies)

3. NCSHA – Summary of Mortgagee Letter 2023-05

4. HUD Mortgagee Letter 2025-23 (FHA mortgage limits)

5. CFPB – FHA loans