The Quick Read: A long-term rental can be underwritten as a short-term rental when three things line up: the property is legally allowed to host nightly guests, the lender accepts a defined source of short-term income, and that income covers the full monthly obligation at the program’s coverage floor. Each piece has to hold for the file to work, subject to lender guidelines and property review.
- Legal STR use comes first, because strong projections fail when zoning, HOA, or lease terms say no.
- Income evidence for a converted property is usually a market projection or an appraiser’s STR analysis, since there is no booking history yet.
- Short-term rental purchases top out at 75% LTV, and refinances and cash-outs at about 70%, with a 640+ score expected.
- Coverage starts at 1.00 on both purchases and refinances, and that is a program floor, not a promise.
- Run the ratio on STR income and on long-term rent before you apply.
Key Terms Defined
LTR conversion: A property that is leased long-term, or has no nightly-rental history, that the investor now wants underwritten on short-term income.
DSCR (debt service coverage ratio): Monthly rent used for lender review divided by the monthly principal, interest, taxes, insurance, and any HOA dues.
PITIA: The full monthly housing obligation the ratio divides into: principal, interest, taxes, insurance, and association dues.
Form 1007: The appraiser’s single-family rent schedule, built to estimate long-term market rent.
Form 1025: The comparable-rent and operating-income form for two- to four-unit properties.
STR projected income analysis: A narrative addendum from an appraiser, or a third-party market report, that estimates nightly-rental income for a property with no history.
Haircut: The expense factor a lender subtracts from gross short-term income before running the ratio.
Short-Term Rental Calculator
Run the STR numbers in your market
Rate source: Freddie Mac 30-yr average via FRED® — Federal Reserve Bank of St. Louis · effective Oct 15, 2026
Prefilled with starting assumptions — enter your nightly rate, occupancy, taxes, and insurance for a more accurate picture.
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.
What “Conversion” Means to an Underwriter
A conversion is a gap in evidence, not a legal status. The investor has a property that earns, or could earn, long-term rent. The investor wants the loan sized on nightly income. The lender has no booking record to point at.
That gap drives everything. DSCR loans are designed for non-owner-occupied investment properties, and because they are business-purpose loans, they are reviewed differently from a standard owner-occupied mortgage. The file qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. For a conversion, the live question is which income number the program will accept.
Across Lendmire’s wholesale network, programs answer that question differently. Some will only look at trailing booking history. Others accept a third-party market projection or an appraiser’s analysis when there is no history. A few will fall back to long-term rent. Matching the file to the right program is most of the work, and it is the main thing a broker adds. For the full picture of how these loans work, see the complete DSCR loans guide.
Step 1: Confirm the Property Can Legally Operate as an STR
Legal use is the first gate. A property with excellent projections can still fail if local or association rules ban nightly rentals. Appraisal-industry guidance says a sound short-term income analysis includes confirmation that STR use is legally permitted, per Class Valuation.
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. Work through this pass/fail list before spending money on reports:
- Zoning and any required permit or registration allow nightly stays.
- HOA or condo documents do not prohibit or cap short-term use.
- The current lease, if one exists, can end on a schedule that fits your plan.
- Insurance can be written for short-term use.
Fail any one and the rest of the file is moot. Skip the shortcut of assuming it will be fine.
Step 2: Choose Your Qualifying-Income Path
For a property with no nightly history, there are three candidate income bases.
| Income path | What it needs | Main risk |
|---|---|---|
| Market projection | Third-party report with comps | Thin comps weaken it |
| Appraiser STR analysis | Appraisal with narrative addendum | Appraiser must know STRs |
| Long-term rent | Lease or Form 1007 | Can understate the property |
Not every program accepts every path. Many lenders in the network will not take a projection on a converted property at all, so the first question to any lender is what income they will actually use. Most programs the brokerage places files with want a labeled analysis rather than a nightly rate multiplied by thirty.
The reason the appraisal route matters is the form itself. Form 1007 was built to estimate long-term monthly rent. HousingWire reports that nightly pricing, seasonality, event spikes, cleaning and management costs, and local rules cannot be developed inside it, and that forcing STR income through it can produce artificially low coverage. Competent STR appraisers add a labeled narrative addendum for that reason.
For more on projection reports, see Lendmire’s piece Using A Market Data Report To Qualify A Short Term Rental.
Step 3: Run the Ratio Twice
Calculate coverage on the short-term income and again on the long-term rent. The two can differ sharply. A property that looks weak on a lease can clear comfortably on nightly income, and the reverse happens when projections are optimistic.
The formula is simple. Qualifying monthly income, after the lender’s expense adjustment, divides by the full monthly PITIA. Lenders typically discount gross short-term income before running it, because STR operating costs run higher than those of a long-term rental.
Picture a converted duplex where lease rent alone lands the ratio near 0.90x, but a market projection after the lender’s discount lands near 1.20x. On the STR basis it clears the 1.00 floor with cushion. On the lease basis it does not. Those figures are illustrative, not market data. The point is that the income basis, not the building, decides which side of 1.00 the file sits on.
Coverage is not cash flow. The ratio compares rent to PITIA only. Repairs, vacancy, management, utilities, platform fees, furnishing, and capex sit outside it. Clearing 1.00 tells you the lender’s test is met, not that the property pays you.
If the long-term number lands below 1.00, a separate select-lender path takes coverage below 1.00 with leverage and terms adjusted. It is available through select lenders in the network, not as a default.
Step 4: Handle the Transition
Tenant in place and vacant are different situations. With a lease running, the only documented income is the lease. The projection is a forecast, and many programs will not underwrite on a forecast while a tenant occupies the unit. A vacant, furnished property with a permit and listing in place gives the lender a cleaner story.
Sequence matters. A workable order looks like this:
1. Confirm legal use and association rules.
2. Decide the lease end date and tenant notice.
3. Order the market report or appraisal with STR analysis.
4. Furnish, insure, and list the property.
5. Submit the file with the income basis the chosen program accepts.
The awkward window is between the lease ending and the first bookings. A file showing no tenant and no bookings leans entirely on the projection. Hold reserves for that stretch. Reserves vary by lender, leverage, loan size, and transaction type, and are commonly around six months of PITIA across the network.
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.
Purchase Versus Refinance
A conversion is generally easier to underwrite on a purchase than on a refinance. On a purchase with no history, the program may accept a projection or appraiser analysis. On a refinance, lenders lean harder toward documented performance.
| Factor | STR purchase | STR refinance / cash-out |
|---|---|---|
| Max LTV | Up to 75% | About 70% |
| Coverage floor | 1.00 | 1.00 |
| Credit score | 640+ | 640+ |
| Hosting history | About 12 months expected | About 12 months expected |
Those are typical ranges from select wholesale-network guidelines, subject to lender review. The 12-month expectation is why the “host a year, then refinance” path is common: documented trailing history unlocks cleaner treatment. Leverage on a cash-out against short-term collateral is about 70%, and against a standard long-term rental it is about 75%.
If you are leaning toward a lower payment to lift the ratio, Lendmire’s piece How to Use Interest-Only Payments to Qualify a Short-Term Rental DSCR Loan covers that structure.
Step 5: Assemble the File
Documents commonly requested for a converted property:
- The market-data report or an appraisal with an STR addendum, or Form 1007 or 1025 as the fallback.
- The current lease, if the property is still leased.
- Permit, registration, and HOA evidence.
- Entity documents and insurance, if the property is held in an LLC, subject to lender program eligibility.
- Proof of reserves and a credit report.
Form 1007 covers one-unit properties and Form 1025 covers two to four units. Fannie Mae’s appraiser guidance describes 1007 as the tool for documenting monthly market rent on a one-unit investment property. That is agency contrast only. DSCR loans are not agency loans, and none of it sets DSCR rules. For two- to four-unit conversions, expect the appraiser to add nightly-comp data or a narrative addendum for each unit.
If the Numbers Don’t Clear
A failed ratio is information, not a dead end. Options to weigh:
- Lower leverage. A larger down payment lowers the payment and can lift the ratio. It never erases leverage caps, credit floors, reserve rules, or property eligibility.
- Wait and build history. Host for about a year, then refinance on documented performance.
- Use the lease basis. If the property clears on long-term rent, qualify on that and run the STR as upside.
- Sub-1.00 through select lenders. Available in the network with leverage and terms adjusted, not as a default.
- Re-examine the property. If it only works on the most optimistic projection, the property may be the problem, not the loan.
Converting a long-term rental is also a tax decision, since depreciation treatment and participation rules can change. Tax treatment varies; consult a qualified professional before relying on any deduction.
Where the General Rule Breaks
- Thin or brand-new STR markets. Projection tools tend to run optimistic for new listings, and thin comps weaken the number.
- Local rule changes. The mortgage stays in place if rules change, but the STR income may not. You may have to revert to mid- or long-term tenants while carrying the full payment.
- Ineligible property types. Manufactured homes, log homes, and barndominiums are not offered in the network’s DSCR programs, however strong the bookings.
- Large balances. Loans run up to $3,000,000 on standard programs, and above $2,500,000 the network generally holds to 30-year fixed structures. Reserves typically step up on larger loans.
Common Conversion Mistakes
Multiplying the nightly rate by 30 and calling it qualifying income. Ignoring HOA language until after contract. Ending a lease before knowing whether the program accepts a projection. Treating the ratio as proof of cash flow. Applying with no reserve plan for the ramp-up months.
Rabbu, a short-term rental data vendor, says DSCR underwriting skips personal-income verification and that conventional channels often discount or ignore STR income. Both points are directionally right and worth keeping in mind.
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. Reach the team at 828-256-2183.
Frequently Asked Questions
Can I use projected income if the property has no bookings?
Sometimes. A subset of programs in the network accept a third-party market projection or an appraiser’s STR analysis on a converted property, usually on a purchase. Many do not, so ask each program what income it will use before ordering reports.
Do I need the property to be vacant?
Not always, but a tenant in place makes the projection harder to use. With a lease running, the documented income is the lease. A vacant, furnished, listed property gives the lender a cleaner file.
Does a refinance work differently from a purchase?
Yes. Refinances lean on documented hosting history, about 12 months on most short-term files, and top out near 70% LTV. Purchases reach 75% LTV and may accept a projection where the program allows.
Can I cash out right after converting?
Rarely. Cash-out on short-term collateral is about 70% LTV and generally expects hosting history. A freshly converted property with no bookings usually has to build that record first.
What if the HOA restricts rentals?
Then the file is likely stalled, whatever the projection says. Lenders review legal use, and a prohibition removes the short-term income from consideration. Confirm association rules before signing.
About Lendmire
Lendmire (NMLS# 2371349) is a DSCR-focused mortgage broker that helps arrange investor financing across 41 markets, including Washington, D.C., through wholesale and investor-lending channels. DSCR eligibility is generally reviewed by the lender around the property’s rental income rather than personal income documentation, subject to lender guidelines. That works for self-employed investors, LLC operators, and portfolios above four financed properties. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Class Valuation: Appraisal Form 1007 and Short-Term Rentals
2. HousingWire: Short-Term Rentals Are Breaking the Appraisal Playbook
3. Fannie Mae Appraiser Update
4. Rabbu: DSCR Loans for Short-Term Rentals
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: How to Switch a Cabin Rental DSCR Loan to Long-Term Rent · How to Qualify Airbnb Income for a DSCR Loan Using STR1007 · Putting 15% Down vs. 25% Down on a Short-Term Rental DSCR Loan
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Compliance and disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage broker and is not a direct lender, depository institution, financial advisor, or tax professional. Content in this article is general market analysis and educational information — not financial, legal, or tax advice for any specific situation. Lendmire does not guarantee loan approval; every transaction is subject to underwriting by the funding lender. Mortgage pricing and loan program guidelines are subject to change at any time without notice and vary by borrower characteristics, property type, and state regulations. Lendmire complies with Equal Housing Opportunity. Licensure verification: NMLS Consumer Access.