The Quick Read: Yes, but only through select lenders in Lendmire’s wholesale network, with leverage and terms adjusted: 1.00 coverage is where many select programs start, a separate select-lender path takes coverage below 1.00, and stronger equity, credit, and reserves have to carry the file.
- Short-term rental (STR) purchases run up to 75% LTV on the strongest files. Refinances and cash-out on STR collateral top out around 70%.
- Expect a 640 minimum credit score and about 12 months of hosting experience.
- Clearing 1.00 does not mean the property cash flows. The ratio ignores repairs, vacancy, management, and utilities.
- No-ratio loans, which skip the coverage test, are available only through select lenders, generally for borrowers who already own a primary residence.
A fourplex that books well but carries a heavy payment is the classic case. The rest of this piece covers how the math works, what lenders want in exchange for going below 1.00, and whether you should take that deal.
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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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Short-term rental income is documented with a 12-month history or a market data report. Program parameters update from Lendmire’s centralized guideline source.
As of Oct 15, 2026 · General Freddie Mac market benchmark, not a Lendmire loan offer. Nightly rate, occupancy, taxes, and insurance are editable estimates. 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): monthly qualifying rental income divided by the monthly housing obligation. Above 1.00 means rent covers the payment. Below 1.00 means it does not.
PITIA: principal, interest, taxes, insurance, and association dues. It is the payment side of the ratio.
LTV (loan-to-value): the loan balance as a percentage of the property’s value. A 75% LTV purchase means roughly 25% down. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.
No-ratio loan: a loan where the coverage ratio is not used to qualify. Credit and equity carry the file instead.
Reserves: liquid cash you still hold after closing, usually counted in months of PITIA.
What Does “Below 1.0” Mean on a 2-4 Unit STR?
It means the rent the lender counts is smaller than the full monthly payment. The formula is simple: income divided by PITIA. At 1.00 the two are equal. At 0.90, the income covers roughly nine-tenths of the payment, and you cover the gap.
A 2-4 unit changes the top half of that fraction. The lender adds up the income from every unit and measures it against one payment for the whole building. Four units sharing one payment can look strong. One weak or new unit can drag the total down.
DSCR loans are designed for non-owner-occupied investment properties. Because they are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage. The loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines.
One more point before the mechanics. A 1.00 on paper is not break-even in real life. DSCR counts rent against PITIA only. Vacancy, repairs, utilities, management, and capital expenses all sit outside the calculation. Many investors learn this after closing.
Where the Income Number Comes From
For a short-term rental, the lender wants STR income, and the evidence matters. The common routes are trailing 12-month platform statements, a property-management-system export, or a projection for a property you are buying with no history. Across the network, programs treat these differently, and some fall back to market rent from the appraisal.
That fallback can sink a deal. A building that clears 1.00 on STR income can fall short on the appraiser’s long-term rent figure. If a program defaults to long-term rent, a strong Airbnb-style operation can still show a thin ratio. Know which basis your lender uses before you write an offer.
Annualizing peak season is the other trap. A summer-heavy property that books solid for three months does not earn that pace for twelve. Underwriters look at the full year, and so should you.
On the appraisal side, a 2-4 unit usually gets Form 1025, the Small Residential Income Property Appraisal Report. The Fannie Mae Selling Guide lists it for two- to four-unit properties, including those in PUDs, condos, and co-ops. Fannie Mae’s form page says the form is designed for 2-4 unit properties. That is only the appraisal tool. DSCR loans are not agency products, and agency guidelines do not set their terms.
Short-term rental rules can vary by city, county, HOA, and property type, so investors should confirm local rules before relying on projected rental income.
Sub-1.00 vs No-Ratio: Two Different Paths
These are different products, and mixing them up causes bad conversations. In sub-1.00, the ratio is calculated and falls short, so equity, credit, and reserves carry the file. In no-ratio, the ratio is not used at all.
| Factor | Sub-1.00 | No-ratio |
|---|---|---|
| Ratio tested? | Yes, falls short | Not used |
| Availability | Select lenders, terms adjusted | Select lenders only |
| Typical borrower | Owns the property type, thin coverage | Often already owns a primary residence |
| What carries the file | Equity, credit, reserves | Credit and equity |
Neither is a standard program. 1.00 is where many select programs start, and a separate select-lender path takes coverage below 1.00 with leverage and terms adjusted. Treat them as separate doors, not one program with a sliding floor. Vacant properties and first-time buyers are often ineligible for no-ratio.
Also, “no-ratio” does not mean “no requirements.” Credit, equity, reserves, and the property itself still decide the file.
What Lenders Ask for in Exchange
Going below 1.00 means the lender takes more risk on the income side. They want it back somewhere else. Across the wholesale network Lendmire places files with, the trade shows up in five places.
| Lever | What typically changes |
|---|---|
| Leverage | Lower LTV than the STR ceiling |
| Credit | Stronger score than the 640 STR minimum |
| Reserves | More post-closing cash |
| Pricing and terms | Adjusted for the added risk |
| Documentation | Cleaner STR history |
For reference, standard STR programs on the strongest files run up to 75% LTV on a purchase and up to 70% on refinances and cash-out on STR collateral. Sub-1.00 files usually sit below those ceilings, not at them. Reserves vary by lender, leverage, loan size, and transaction type, so no single number applies to every file. Loan amounts on standard programs go up to $3,000,000.
A larger down payment helps in two ways. It lowers the payment, which lifts the ratio. It also eases the lender’s risk. But it never erases credit floors, reserve rules, or property eligibility. The strongest files clear both tests: enough equity and enough rental coverage.
Select lenders also offer extended terms (40-year) and interest-only periods. Both lower the payment side of the ratio. They are structure choices, not guarantees, and they are reviewed file by file.
A 2-4 Unit STR, Shown at Three Stages
Run the numbers on a fourplex bought as a short-term rental. These are modeled assumptions, not market data.
Stage one, clearing 1.00. All four units have a full year of platform history. The combined income covers the full PITIA with a modest cushion. Coverage lands a few points above 1.00. Standard STR programs apply.
Stage two, just under 1.00. One unit is new, so the lender counts only documented history for it. The numerator shrinks and coverage slips just under 1.00. The file now needs a select-lender path with leverage and terms adjusted.
Stage three, well under 1.00. The insurance quote comes in higher than you modeled. That raises PITIA, and coverage drops well under 1.00. A buyer who annualized peak-season revenue will feel this the hardest.
What fixes it? Rank the levers by impact:
1. Put more down. On a purchase, dropping from 75% LTV to 70% LTV lowers the payment and lifts the ratio.
2. Fix the income basis. Clean up platform statements, or choose a program that counts documented STR income.
3. Change the structure. Ask a select lender about interest-only or an extended term.
4. Switch paths. If the ratio still misses, a sub-1.00 select-lender path or a no-ratio structure may be reviewed.
Still no? Pass on the deal. A property that only works at the lowest possible payment is not a great property.
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.
Risk Check: Negative Coverage Is Real Money
Below 1.00, you are paying part of the mortgage from your own pocket every month. The loan can be approved while the property still loses money. That is the trade you are making.
Stress-test before you commit. Cut projected income by a meaningful chunk and ask whether you can still carry the gap. Add an insurance bump on top. A rental that survives that test is one you can hold through a slow season. One that does not is a bet on perfect bookings.
Municipal night caps and permit changes can also trim the revenue a file was underwritten on. If local rules change after closing, your coverage can fall below what the lender reviewed. Sub-1.00 buyers have the least room for that kind of surprise.
Sub-1.00 makes sense in a few situations: a value-add property with underpriced rents, a new STR with no history, or a high-insurance area where the rest of the deal is strong. It makes less sense when the gap is the entire thesis.
Documentation Checklist
An STR file for a 2-4 unit usually needs:
- Trailing 12-month platform statements or a property-management export for each unit.
- A lease or market-rent support for any unit run as a long-term rental.
- Proof of hosting experience, about 12 months on most STR programs.
- Current insurance quote, so the payment side is accurate.
- An entity and ID package if buying through an LLC, subject to lender program eligibility.
- Confirmation that the local STR use is permitted.
- Liquid reserve statements.
Eligible property types matter too. Manufactured homes (single- and double-wide), log homes, and barndominiums are not offered through these programs. Standard DSCR programs cover 1-4 units; this is not a second-home loan, and you cannot live in the property.
Which Path Fits You?
- Your ratio clears 1.00 with documented STR income: a standard STR program is the cleaner path.
- Your ratio is just under and you can add equity: try a lower LTV first, then ask about select-lender options.
- Your ratio is well under with strong credit and cash: a select-lender sub-1.00 file, with leverage and terms adjusted.
- You already own a primary residence and want to skip the ratio: ask whether a select lender offers a no-ratio structure.
- The deal only works if everything goes right: walk away or renegotiate.
For deeper background, Lendmire’s complete DSCR loans guide covers how coverage, leverage, and credit fit together. If you already own the building, Lendmire’s piece Can a 2–4 Unit DSCR Cash-Out Refinance Work Below a 1.0 Ratio? covers that angle. And for how these loans are set up on multi-unit STRs generally, see how a short-term rental loan works on a 2-4 unit property.
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.
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, with programs arranged across 41 markets, including Washington, D.C.
Frequently Asked Questions
Does a ratio of exactly 1.00 qualify?
It can, but nothing is automatic. 1.00 is where many select programs start, not a promise of approval. Credit, equity, reserves, and the property still decide the file, subject to lender guidelines.
Can I use long-term rent instead of STR income?
Some programs do, and the appraiser’s market-rent figure often sits below short-term potential. If your STR income is strong, you want a program that counts it. If the file falls back to long-term rent, a building that looks fine on bookings can miss on the ratio.
Can a first-time investor get a no-ratio loan on a 2-4 unit?
Usually not. No-ratio is available only through select lenders, generally for borrowers who already own a primary residence. Vacant properties and first-time buyers are often ineligible, so a first purchase more commonly goes the sub-1.00 route, if at all.
Does interest-only help a sub-1.00 file?
It can, because interest-only periods are available through select lenders in the network and lower the payment side of the ratio. The loan still has to meet leverage, credit, reserve, and property rules, and every file is underwritten individually.
Can I live in one unit of a 2-4 unit STR?
No, not on a DSCR loan. These are investor loans for non-owner-occupied properties. If you plan to live in one unit, that is a different financing path.
About Lendmire
As a DSCR and non-QM mortgage broker, Lendmire — NMLS# 2371349 — connects investors with wholesale lending channels across 41 markets, including Washington, D.C. The property’s rental income, not the borrower’s tax returns, is central to lender review, which works for self-employed operators and portfolios beyond four financed properties. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
This article is part of Lendmire’s short-term rental loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Is a DSCR Loan a Good Idea for a One to Four Unit Rental? · One Blanket DSCR Loan vs Individual Loans for a High-W-2 STR Operator · How Much Reserve a Jumbo STR DSCR Loan Requires on a Fifth Airbnb
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Disclosure information. Lendmire is a state-licensed mortgage brokerage under NMLS# 2371349. Lendmire is not a depository institution, direct lender, or financial advisor — all loans referenced are placed through wholesale lender partners and are subject to each lender's underwriting standards. This article is provided for general informational purposes and is not a commitment to lend, nor does it constitute financial, legal, or tax advice. Loan programs, terms, rates, and qualification standards change without notice and depend on borrower profile, property type, and the state in which the subject property is located. Equal Housing Opportunity provider. NMLS Consumer Access: nmlsconsumeraccess.org.