Multifamily DSCR loan: how a duplex, triplex or fourplex qualifies

A multifamily DSCR loan is how many investors finance a small apartment building on the building's rent instead of on their tax returns. The loan looks at the building, not your paycheck.

That makes the math simple, but not the same as on a single rental. This guide shows how the ratio works when rent comes from two, three or four doors. It covers what the appraiser checks for each unit, the Nevada tax rule that touches rentals, and a Las Vegas fourplex worked by hand.

What is a multifamily DSCR loan?

A multifamily DSCR loan is an investment property loan on a building with two, three or four units. It qualifies on the building's rent instead of your personal income. So the lender usually does not use your tax returns or pay stubs to size the loan. It still looks at your credit and your cash reserves.

DSCR stands for debt service coverage ratio. It is one division: monthly rent divided by the monthly payment. That payment is often called PITIA. The letters stand for principal, interest, taxes, insurance and association dues.

A ratio of 1.00 means the rent exactly covers the payment. A ratio of 1.25 means the rent is 25 percent more than the payment. Each lender sets its own minimum. For the rest of the rules, such as credit and cash reserves, see our plain guide to DSCR loan requirements.

In everyday talk, "multifamily" can mean anything from a duplex to a 200-unit complex. In lending, it splits into two very different products. That split comes first, because it decides which loan you are shopping for.

Where does a small building become a commercial loan?

At five units. Federal mortgage rules draw the residential line at four. RESPA, the federal law that governs closing costs and settlement papers, covers loans on property "designed principally for occupancy of from one to four families." That wording sits in the definition of a federally related mortgage loan, in 12 CFR 1024.2(b).

Lenders follow the same line. A duplex, triplex or fourplex is financed as residential property, much like a single rental. A building with five or more units is commercial multifamily. It is underwritten differently, with different paperwork and different lenders.

The ratio itself changes at that line too. The Office of the Comptroller of the Currency, which supervises national banks, describes the commercial version in its handbook on commercial real estate lending. There, DSCR is net operating income divided by annual debt service. Net operating income is the year's rent, less an allowance for empty units, minus the costs of running the building, such as repairs, management, taxes and insurance. It leaves out the loan payment.

So the two ratios answer different questions:

• Residential DSCR (1-4 units). Gross monthly rent, before expenses, divided by the monthly payment.
• Commercial DSCR (5 or more units). Net operating income, after expenses, divided by the year's loan payments.

Valley West Mortgage is a residential lender and does not offer commercial multifamily loans. Everything below is about buildings of two to four units.

How is the ratio figured on a duplex, triplex or fourplex?

The lender adds up the rent from every unit. Then it divides that total by one monthly payment for the whole building. There is one loan, one tax bill and usually one insurance policy, so there is one payment.

The division is the same as on a single rental. What changes is the top number, which is now two, three or four rents added together, and how an empty unit affects it.

Keep one thing straight, though. A lender usually sizes the loan on full rent, not on a month with a vacancy. The table is about your own cash flow. It shows why a larger building is easier to carry through a slow month.

A program can also set different rules for 2-4 units than for a single home. The minimum ratio, the loan-to-value limit and the cash reserves can all change with the unit count. Loan-to-value, or LTV, is the loan amount as a share of the property's value. Ask for the unit-count rules in writing before you make an offer. Our guide to how much you put down on a DSCR loan explains how LTV and down payment fit together.

What does the math look like on a Las Vegas fourplex?

Here is a full example, done by hand so you can copy it onto your own numbers. Every figure is an assumption chosen for the arithmetic. None of it is a quote, and it names no interest rate.

With one unit empty, the building still collects $4,200 against a $4,450 payment. You would cover the $250 gap from reserves for that month. A single-family rental with its only tenant gone would collect nothing at all.

What if one lease is below market?

Now say one tenant signed a lease at $1,250, while the appraiser puts market rent for that unit at $1,400. Some lenders count the lower of the lease or the market rent, unit by unit. On that method, the rent is $1,400 times three, plus $1,250, or $5,450. Divide by $4,450 and the ratio drops to 1.22.

That one lease moved the building from just over 1.25 to just under it. On a fourplex, every unit's number matters. To try your own figures, use our DSCR ratio calculator for Las Vegas rentals and enter the combined rent of all units.

How does the appraiser find the rent for each unit?

An appraisal is an independent estimate of what a property is worth. On a 2-4 unit building, the long-standing report is Fannie Mae Form 1025, the Small Residential Income Property Appraisal Report. Freddie Mac uses the same report as its Form 72.

The form does more than value the building. It lists nearby comparable rentals, with their current monthly rent. Then the appraiser gives an opinion of market rent for the subject property. That opinion is what many DSCR lenders put on top of the ratio.

The form is changing, too. Fannie Mae and Freddie Mac are replacing their older appraisal forms with a redesigned report. Fannie Mae lists November 2, 2026 as the date after which every new appraisal sent to Fannie Mae and Freddie Mac must use the new data standard, called UAD 3.6. DSCR loans are generally not sold to Fannie Mae, so each DSCR lender decides which report it orders. Either way, ask for the market rent of each unit in writing.

Three questions are worth asking your lender before the appraisal is ordered:

• Lease or market rent? Does the lender use the lease, the appraiser's market rent, or the lower of the two for each unit?
• What about an empty unit? If a unit is vacant at closing, will the lender count its market rent?
• Short stays? If a unit is used for short-term rentals, how is that income counted? Our guide to short-term rental DSCR loans in Las Vegas covers that case.

How do Nevada property taxes move a rental's ratio?

Taxes sit inside the payment, so a rising tax bill slowly pulls the ratio down. Nevada limits how fast the bill on an existing property can climb each year. That limit is called a partial abatement, which is a tax cap in plain words. The rules are in chapter 361 of the Nevada Revised Statutes, the state's written laws.

Two caps matter to the owner of a rental:

• NRS 361.4722, the general cap. It covers most property, including rentals. The yearly rise follows a formula, and it can never go above 8 percent.
• NRS 361.4724, the lower-rent rental cap. If the rent from each tenant does not exceed HUD's Fair Market Rent for the county, the owner can claim a 3 percent cap. It does not cover hotels, motels or other transient lodging, and the claim has to be filed the way the Nevada Tax Commission sets out.

Here is what each cap allows on the fourplex above. Its taxes are $260 a month, or $3,120 a year. An 8 percent rise is $249.60 a year, or $20.80 a month. A 3 percent rise is $93.60 a year, or $7.80 a month.

Neither number sinks the building in one year. But the caps compound, and the lower-rent cap only helps while every unit stays at or under HUD's figure. Fair Market Rent is a HUD estimate of rent plus utilities for a modest unit, set by metro area and number of bedrooms. Check it on HUD's site, and ask the Clark County Assessor which cap applies once you own the building.

What if you want to live in one of the units?

Then a DSCR loan is the wrong tool. DSCR loans are business-purpose loans on property you rent out. Regulation Z, the rule behind most mortgage disclosure forms, does not cover credit given mainly for a business purpose. That exemption is in 12 CFR 1026.3(a). The official commentary to that rule, comment 3(a)-4, treats a loan on rental property the owner does not live in as business credit.

A DSCR loan is built for a building you rent out in full, so living in one unit points you to a different loan. Living in one unit and renting the rest is often called house hacking. For that, look at owner-occupied programs such as conventional, FHA or VA. Each has its own rules for 2-4 units. Our guide to Las Vegas multifamily loans for owner-occupants and investors compares all four paths side by side.

DSCR or a conventional loan on 2-4 units: which fits?

A conventional investment loan can finance a 2-4 unit rental too. The difference is how you qualify. A conventional loan looks at your income, your tax returns and your other debts. A DSCR loan looks at the building's rent.

Conventional loans also tighten as the unit count rises. Fannie Mae's eligibility matrix, dated August 5, 2026, allows a lower maximum loan-to-value on a 2-4 unit investment purchase than on a one-unit investment purchase. So on a conventional loan, a bigger building can mean a bigger down payment. DSCR programs set their own unit-count limits, so ask each lender for its rules in writing.

A simple way to choose:

• Lean conventional when your tax returns show strong income and you own few other rentals.
• Lean DSCR when your returns understate what you earn, you already own several rentals, or you want to hold the building in a company. Our guide to closing a DSCR loan in an LLC covers that last point.
• Run both when you are close on each. The long-term payment usually matters more than the paperwork.

For a deeper look, our conventional loan site keeps a Nevada comparison of qualifying on your income versus the rent.

What should you check before you make an offer?

1. Count the units the way the lender will. Confirm the building is legally two, three or four units. The appraiser reports the zoning and legal use, and a fifth unit makes it a commercial loan.
2. Collect the rent roll and the leases. Write down each unit's rent, lease end date and any unit that is empty.
3. Price market rent for each unit. Compare each unit with similar rentals nearby, since the appraiser will do the same.
4. Build the full payment. Add principal and interest, the tax bill, a landlord insurance quote and any association dues.
5. Run the ratio two ways. Divide full rent by the payment, then run it again with the lower of lease or market rent for each unit.
6. Plan reserves for one empty unit. Know how many months you could carry the gap if one tenant leaves.

When the numbers work, the Las Vegas DSCR loan guide walks through the rest of the file, from term sheet to closing. It also helps to ask each lender the questions that separate DSCR lenders before you pick one.

Multifamily DSCR loans: FAQ

How the loan works

Rent and vacancy

Choosing a path

About the publisher

Across Valley West: One insurance policy usually covers a whole small building, and its cost goes straight into the ratio. Our insurance agency, Valley West Insurance, explains insuring a rental you own in Clark County, including what a landlord policy covers.

Keep reading

• DSCR loans in Las Vegas
• DSCR loan requirements
• Multifamily loans in Las Vegas
• DSCR loan down payment
• DSCR loans and 1031 exchanges
• Interest-only DSCR loans

Sources: federal rules

• Electronic Code of Federal Regulations, 12 CFR 1024.2, Definitions (Regulation X, RESPA). The one-to-four-family wording in the definition of a federally related mortgage loan.
• Electronic Code of Federal Regulations, 12 CFR 1026.3, Exempt transactions (Regulation Z). The exemption for credit given mainly for a business purpose.
• Electronic Code of Federal Regulations, Supplement I to Part 1026, Official Interpretations, comment 3(a)-4. Non-owner-occupied rental property treated as business credit.
• Office of the Comptroller of the Currency, Comptroller's Handbook, Commercial Real Estate Lending, version 2.0 (March 2022). The commercial DSCR: net operating income divided by annual debt service.
• HUD User, Fair Market Rents. The county and bedroom figures that the Nevada lower-rent tax cap refers to.

Sources: Fannie Mae and Nevada law

• Fannie Mae Form 1025, Small Residential Income Property Appraisal Report (Freddie Mac Form 72). The comparable rentals and the opinion of market rent on a 2-4 unit appraisal.
• Fannie Mae, Uniform Appraisal Dataset and forms redesign. The November 2, 2026 UAD 3.6 mandate date for appraisals submitted to Fannie Mae and Freddie Mac.
• Fannie Mae Eligibility Matrix (August 5, 2026). Loan-to-value limits for one-unit and 2-4 unit investment purchases.
• Nevada Revised Statutes 361.4722 and 361.4724, partial abatement of property taxes. The general cap and the lower-rent rental cap.

This article is for general information and is not legal, tax or financial advice. Valley West Mortgage is an independent mortgage lender, NMLS #65506, licensed in Nevada. Equal Housing Opportunity. Valley West Mortgage is not affiliated with, or acting on behalf of or at the direction of, Fannie Mae, Freddie Mac, HUD, the FHA, the VA or any other government agency. DSCR loans are business-purpose loans on non-owner-occupied investment property. Nothing on this page is an offer of credit, a rate quote, a preapproval or a commitment to lend, and loan terms vary by borrower, property and program. All figures are illustrative and not a quote, offer, or commitment to lend.