The Quick Read: Sizing a multifamily DSCR loan means taking the smaller of two numbers: the amount the leverage cap allows and the amount the property’s income can carry at the lender’s coverage floor. Most files in Lendmire’s wholesale network land at 75%-80% LTV on a purchase, and the income side is tested separately, subject to lender guidelines.
- Small buildings (1-4 units) are usually tested on rent against the full monthly obligation. Buildings with 5+ units are usually tested on net operating income against debt service.
- On most files, the lower of the leverage-supported loan and the coverage-supported loan sets the proceeds.
- Coverage of 1.00 is where select programs start, not a universal standard. Stronger ratios open better pricing and leverage.
- Holding title in an LLC adds entity documents and usually a personal guaranty, subject to program terms.
- Clearing the ratio is not the same as positive cash flow. Repairs, vacancy, management, and capex sit outside it.
Brokers see the same mistake on multifamily files again and again. The investor sizes the loan on the pitch deck, and the underwriter sizes it on a different set of numbers. This piece walks through how the sizing actually works, step by step, for an investor who holds property through an LLC. For the broader picture, the complete DSCR loans guide covers the product from the ground up.
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Rate source: Freddie Mac 30-yr average via FRED® — Federal Reserve Bank of St. Louis · effective Oct 15, 2026
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Program parameters update from Lendmire’s centralized guideline source. Taxes and insurance are editable estimates.
As of Oct 15, 2026 · General Freddie Mac market benchmark, not a Lendmire loan offer. Rent, nightly rate, occupancy, taxes, and insurance are editable estimates. Short-term rental figures are estimates only and vary significantly by season, property type, management approach, and local short-term-rental rules — confirm local regulations before relying on them. Qualifying income for short-term rentals varies by program — some use appraisal market rent, others use documented STR history or projections — and is confirmed in underwriting. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
Key Terms Defined
DSCR (debt service coverage ratio): Income available to pay the debt, divided by the debt payment. A reading of 1.00 means income equals the payment.
NOI (net operating income): Property income after operating expenses, before debt service, depreciation, and income taxes. The OCC’s legacy income-property lending material defines DSCR as NOI divided by total debt service.
PITIA: Principal, interest, taxes, insurance, and association dues. This is the payment the coverage test uses on small residential buildings.
LTV (loan-to-value): The loan amount as a percentage of the property’s value or price. It sets the leverage cap.
Blanket loan: One note secured by several properties and tested on a single blended ratio.
Release price: The payoff required to free one property from a blanket loan so it can be sold.
What Does “Sizing” Actually Mean?
Sizing is finding the largest loan a file supports. Two limits apply at once, and whichever is lower wins.
The first limit is leverage. On a purchase, most programs in the network run 75%-80% LTV, meaning 20%-25% down. Select high-leverage programs reach 85% LTV with roughly a 700+ score. Cash-out refinances top out around 75% LTV across most of the network.
The second limit is coverage. Rent or NOI has to cover the payment by the margin the program requires. A larger loan means a larger payment, so coverage caps the loan from the other side.
An investor can pass one test and fail the other. A building bought at a low price relative to its rent may clear coverage easily and still be held to the LTV cap. A building with rents that lag its price may fit inside the leverage cap and fail coverage. The strongest files clear both. A bigger down payment helps coverage because it shrinks the payment, but it never removes credit floors, reserve rules, or property eligibility.
The OCC’s commercial real estate lending handbook makes a useful neutral point here: lenders set their own policy by program and property type, including minimum debt-service coverage, maximum LTV, and limits on interest-only. The floor is a lender choice, not a universal rule. That matches what a broker sees across a network. Floors, leverage, and reserves differ from lender to lender.
Which Income Basis Applies: Rent or NOI?
The unit count decides the formula.
| Factor | 1-4 units | 5+ units |
|---|---|---|
| Income used | rent used for lender review | NOI |
| Compared against | Full PITIA | Annual debt service |
| Expenses in the math | Taxes, insurance, dues sit in the payment | Operating expenses come out of income |
| Appraisal | Rent schedule or small-income form | Income-approach valuation |
On a small building, the test is simple. Rent used for lender review divided by PITIA gives the coverage ratio. The appraiser supports rent with the 1007 rent schedule (single-family) or the 1025 operating income statement (2-4 units). Those are appraisal form names only. They do not set DSCR program rules.
At five units and up, lenders usually treat the building as commercial-style. The test shifts to NOI over debt service, and the appraisal leans on income and cap rate. Practitioners treat the formula split as convention, not regulation, so confirm which basis a given program uses before you run the numbers.
Why does it matter? The same building can look very different under each method. Rent over PITIA ignores operating costs. NOI over debt service charges them. A five-unit building that looks comfortable on gross rent can get thin once vacancy, management, and repairs come out.
How Underwriting Builds NOI, Step by Step
On a 5+ unit building, the underwriter builds income from the ground up. Expect these steps.
1. Start with gross potential rent. This comes from the rent roll, backed by leases, or from a market rent survey where leases are thin.
2. Subtract vacancy and credit loss. The underwriter may use a market vacancy figure rather than the building’s actual occupancy. A full building today does not earn a zero vacancy charge.
3. Subtract operating expenses. These include taxes, insurance, repairs, management, and replacement reserves. Debt service, depreciation, and income taxes stay out.
4. Charge a management fee even if you self-manage. Underwriters commonly add one on owner-managed buildings. This is the line that surprises investors most.
5. Divide NOI by the debt service on the proposed loan. That gives the coverage ratio. Amortizing and interest-only structures give different results, so the structure matters.
6. Compare against the program floor. One-point-zero-zero is where select programs start. A separate select-lender path takes coverage below 1.00 with leverage and terms adjusted.
The investor’s expense story has to match the underwriter’s. A pro forma built on owner-reported expenses that run well below market is the usual reason proceeds come in short.
Sizing Backwards: From Income to Maximum Loan
Most investors test a loan they already have in mind. Operators work the other direction.
The idea: maximum loan equals NOI divided by the required coverage ratio and the payment constant. Rearranged, it says that every change in NOI, coverage floor, or payment structure moves the loan amount directly. Lower NOI shrinks proceeds. A higher floor shrinks them too.
Walk through it as a decision, not a dollar exercise. Say you own a six-unit building and the underwriter’s NOI comes in below your pro forma because of a management fee and a market vacancy charge. The coverage-supported loan falls. If the purchase price implies 75% LTV, the leverage cap may now be the looser limit and coverage the tighter one. The gap between them is cash you bring to close. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.
The reverse also happens. A building with strong NOI against a modest price may support more loan than the leverage cap allows. Then LTV binds, and extra income buys you cushion and better pricing, not extra proceeds.
So run both numbers before you make an offer. Know which limit binds. That tells you whether improving rents, cutting expenses, or adding down payment is the lever that matters. The site’s illustrative calculator can help you test the ratio side, though it is an estimate, not a quote.
The Portfolio LLC Layer
An investor holding several buildings through an LLC has more structural choices than a one-property buyer. Three come up on most files.
Separate loans per property. Each building is sized and tested alone. A weak building cannot drag down a strong one, and you can sell any property without touching the others. The cost is more files, more entity paperwork, and more documentation.
Blanket loan. One note covers several properties and is tested on a blended ratio: total qualifying income over total payments. A strong property can carry a weak one. The trade-offs are cross-default exposure and a release price to sell a single property. Release prices are commonly set above the allocated loan balance, and the exact terms depend on the program; the OCC’s portfolio loan analysis guidance offers general background on commercial real estate lending. Model the release before you sign, especially if you plan to sell buildings one at a time.
Cross-collateralization. Existing properties are pledged as extra security for one acquisition loan. This differs from a blanket loan, where all the properties are financed together.
Blending has a quiet downside. One underperforming building can pass inside a pool and hide a problem you would have seen in a standalone test. Before pooling, ask whether the weak asset belongs in the pool at all. Keeping it out can improve the file.
Entity mechanics are the same across structures. Investors typically close in an LLC with a personal guaranty, subject to lender program eligibility. The lender will want the operating agreement, articles, and evidence of who owns what. Multiple LLCs under common ownership are workable, but each entity needs its own clean paperwork. If the title and entity names do not match the documents, the file stalls.
For related ground, Lendmire’s piece Can a Portfolio LLC Investor Cash Out Multiple Rentals at Once? covers the refinance side of the same structure.
DSCR vs. conventional financing
There are two common ways to finance an investment property, and they qualify you differently — here’s how investors weigh them.
Why investors choose it
- Qualifies on the property’s rental income — no personal tax returns, W-2s, or pay stubs needed to document income.
- No personal debt-to-income ceiling to clear, so existing mortgages and obligations don’t cap your borrowing the same way.
- Can be closed in an LLC, keeping the property inside a business entity.
- Built for scaling — not held to the limit on number of financed properties that conventional financing applies.
- Underwriting centers on the deal: generally qualifies when the rent covers the payment, a 1.00x coverage ratio being a common baseline (confirmed in underwriting).
- Designed specifically for investment property, including long-term and, where the program allows, short-term rentals.
Where it’s strong
- Often the lowest ongoing financing cost for a buyer who fully qualifies on personal income — a fit for a first property or a cost-first purchase.
Trade-offs for investors
- Requires full personal income documentation and must fit within a debt-to-income limit — salary, existing debts, and other mortgages all count.
- Typically held in your personal name rather than a business entity.
- Caps how many financed properties you can carry, which can become a ceiling as a portfolio grows.
- Evaluates you as a borrower as much as the property, which usually means more paperwork.
How investors usually choose: a first or single property often optimizes for the lowest financing cost; portfolio builders often optimize for leverage, vesting in an LLC, and scaling past conventional caps. The right answer depends on your goals, the property, and current guidelines — both paths run through select lenders in Lendmire’s wholesale network, with eligibility and terms confirmed in underwriting.
Where the General Rule Breaks
Several edge cases change the sizing picture.
The four-to-five unit line. It is a classification line, not a physical one. Cross it and the analysis typically moves to NOI, with a different appraisal and often a different leverage ceiling. Some programs reach up to 10 units, while others stop at 4. Availability varies by program, so confirm early.
Interest-only versus amortizing. The same building can pass on an interest-only structure and fail on a fully amortizing one. Interest-only periods and 40-year terms are available through select lenders in the network, and the base structure is the 30-year fixed. Above $2,500,000 the network generally holds to 30-year fixed.
Mixed-use. When commercial space makes up too large a share of the building, it belongs on a commercial loan, not a DSCR program. Confirm the threshold against program guidelines before you plan around it.
Mixed portfolios. A pool holding both small buildings and 5+ unit buildings has two income bases. Rent over PITIA on one asset and NOI over debt service on another cannot simply be added together. Expect the lender to normalize them, which can move the blended ratio.
Property types. Manufactured homes (single- and double-wide), log homes, and barndominiums are not offered in the network’s DSCR programs.
Variable debt service. On adjustable structures, debt service reflects current obligations. ARM structures exist for investors who want them.
Credit, Reserves, and Loan Size
Coverage is only part of the file. A few other limits set the real ceiling.
Credit: a 620 floor exists in parts of the network, most programs want around 660, and 700+ unlocks the strongest leverage tiers.
Loan size: standard programs run up to $3,000,000 (smaller balances available through select lenders).
Reserves vary by lender, leverage, loan size, and transaction type. About six months of PITIA is common. Conservative rate-term files at modest leverage under $1,500,000 can see reserves waived, and loans above that size typically step up to about nine months. Reserves documentation is a frequent snag: statements need to show the funds are seasoned and sit in the borrower’s or the entity’s name.
None of this changes the coverage math. It changes who qualifies for the loan the math supports.
What Coverage Does and Doesn’t Tell You
A passing ratio is not positive cash flow. DSCR compares income to the payment (PITIA, or debt service at 5+ units). Repairs, utilities, vacancy beyond the underwriter’s assumption, management, and capex can all sit outside the test on a small building. An investor who sizes the loan to the floor and has no operating cushion can pass underwriting and still lose money monthly.
The ratio also is not a guarantee. A 1.00 reading means income equals the payment. That is break-even, and select programs start there. Exact eligibility depends on lender guidelines, credit, reserves, property review, and the full file.
Tax treatment can depend on how the funds are used and how the property is held; investors should keep clear records and speak with a qualified tax professional before relying on any deduction.
Pre-Application Checklist
Gather these before you ask for a sizing:
- Rent roll and current leases
- A trailing operating statement, where one exists
- Operating agreement and articles for each LLC
- Insurance quote and property tax information
- Reserves statements, seasoned and in the right name
- A decision on single loan, separate loans, or blanket
- Your own NOI with market vacancy and a management fee included
Files that arrive with all of this leave the lender fewer preventable gaps to chase. Clean paperwork does not guarantee approval, but it removes the avoidable delays that come from missing pieces.
If you are buying or refinancing a rental property and want to see how the numbers work, Lendmire can help you compare DSCR loan options based on the property income, credit profile, leverage, and investor goals. Lendmire is a mortgage broker arranging financing through select lenders in its wholesale network across 41 markets, including Washington, D.C. Programs change, and every file is underwritten individually. For ongoing equity questions, see Lendmire’s article Can a Portfolio LLC Investor Keep Vesting in a DSCR Cash-Out?.
This article is general information, not legal or tax advice. Readers should consult a qualified attorney or CPA about their own situation.
Frequently Asked Questions
Is the DSCR formula the same for a duplex and a ten-unit building?
No. Small buildings are usually tested on rent used for lender review against the full PITIA. Buildings with 5+ units are usually tested on NOI against debt service, with vacancy, management, and expenses built in. Confirm the basis the specific program uses before you run your numbers.
Which limit binds first, leverage or coverage?
Whichever produces the smaller loan. On a purchase, the leverage cap is typically 75%-80% LTV. If rents are thin relative to price, coverage binds. If income is strong relative to price, LTV binds and extra income buys cushion instead of proceeds.
Does a blanket loan help or hurt a portfolio LLC investor?
It can help when a strong building offsets a weaker one on the blended ratio. It hurts when you want to sell one property, because release terms apply, and when a default could reach every building. Model both before choosing.
Can a coverage ratio below 1.00 work on multifamily?
Coverage below 1.00 is available through select lenders in the network, with leverage and terms adjusted. It is a separate path from the programs that start at 1.00, so expect a lower leverage ceiling and different terms.
Does putting more money down fix a weak ratio?
It helps, since a smaller loan means a smaller payment and a higher ratio. It does not override credit floors, reserve rules, leverage caps, or property eligibility. The strongest files have enough equity and enough rental coverage.
For current guidelines and terms, see Lendmire’s DSCR loan programs page.
About Lendmire
Lendmire, NMLS# 2371349, is a mortgage brokerage focused on investor financing, arranging DSCR loans in 40 states plus Washington, D.C. — 41 markets total. Qualification is based on the property’s income rather than personal income documentation, subject to lender guidelines, making it a fit for LLC-held rentals and scaling portfolios. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. OCC Comptroller’s Handbook, Commercial Real Estate Lending
This article is part of Lendmire’s DSCR loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How to Use a DSCR Loan to Buy a Turnkey Rental Out of State · Interest-Only DSCR Loan vs Investment Property HELOC in an LLC · How to Get a DSCR Loan With Only Three Months of Rental History
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Legal disclosures. Lendmire (NMLS# 2371349) is a state-licensed mortgage brokerage that arranges financing through wholesale lender relationships. Lendmire is not a direct lender, depository institution, or registered financial advisor. The discussion above is general informational content about real estate financing — it is not financial, legal, or tax advice, and readers should consult licensed professionals for guidance on their individual circumstances. Loan inquiries are subject to lender underwriting; this article does not represent a commitment to lend. Loan terms, rates, and qualification standards vary by borrower, property, and state, and are subject to change at any time. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.