The Quick Read: Once a short-term rental becomes a long-term rental, the file stops asking you to prove Airbnb earnings and starts asking you to prove a monthly rent. The qualifying figure comes from a signed lease, an appraiser’s market-rent opinion, or both, and your old STR records move into a supporting role.
- Past platform payouts generally do not enter the coverage ratio on a long-term rental file.
- With a signed lease in place, files are commonly reviewed on the lower of the lease rent and the appraiser’s market rent.
- A vacant or between-tenant property leans on the appraiser’s rent schedule alone.
- Your STR history still helps: it shows demand, ownership history, and non-owner use.
- Refinancing does not convert your old loan. It is a new loan that pays off the old one.
You already know how to run a rental. The part that trips investors is paperwork: which records prove which income, and when. This walkthrough covers what a lender reviews, step by step, and where the usual rules break. For the broader picture, Lendmire’s complete DSCR loans guide covers how these loans work from the ground up.
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 Changes When an STR Becomes a Long-Term Rental
The income basis flips. On an STR file, the lender wants platform history or a market-data projection. On a long-term rental (LTR) file, the lender wants a monthly rent, because that is what the property will actually earn going forward.
DSCR stands for debt service coverage ratio. It divides the property’s monthly rent by its monthly housing obligation: principal, interest, taxes, insurance, and any HOA dues (together, PITIA). A loan is reviewed primarily on property-level rental income covering that payment, subject to lender guidelines. Your personal income is not the centerpiece.
Here is the catch. STR income often runs higher than long-term rent on the same house. HousingWire describes STR income as typically higher than LTR income. So converting can lower the figure that qualifies you. Run the coverage math on the long-term rent before you list the unit for lease, not after.
The upside is real too. A monthly lease fits the standard rent-schedule appraisal form. The mismatch that drags STR files down goes away. And you drop the burden of trailing history, seasonality explanations, and projection reports.
Key Terms Defined
DSCR (debt service coverage ratio): Monthly rent divided by the monthly PITIA payment. It measures whether the property’s rent covers its own debt.
PITIA: Principal, interest, taxes, insurance, and association dues. The full monthly obligation on the loan.
LTR / STR: Long-term rental (a standard lease, typically a year) and short-term rental (nightly or weekly stays booked on platforms).
Form 1007: The appraisal rent schedule for a single-family home. It gives an opinion of monthly market rent.
Form 1025: The small residential income report for 2-4 unit properties, with per-unit rents rolled into the analysis.
Market rent: What an appraiser concludes comparable properties lease for on a monthly basis.
Seasoning: The waiting period a lender wants between events, such as owning a property before refinancing it.
Business-purpose loan: A loan taken for an investment property, not a place you live. DSCR loans are designed for non-owner-occupied investment properties and are reviewed differently from a standard owner-occupied mortgage.
How Underwriting Treats the Conversion, Step by Step
Step 1: The lender picks the income basis
On an LTR file, the formula is qualifying monthly rent divided by PITIA. If you choose an interest-only structure (available through select lenders in the network), the divisor swaps to ITIA, which leaves principal out. That can lift the ratio on the same rent.
Step 2: You establish the rent evidence
Two paths exist, and which applies depends on whether a tenant is already in place.
Path A: a signed lease. Many programs review the file on the lower of the lease rent and the appraiser’s market rent. A lease above market does not raise the figure. A lease below market caps it. Exact treatment is program-dependent, and lenders use the appraisal’s rent data at their discretion.
Path B: vacant, or no lease yet. The appraiser’s market-rent opinion becomes the whole income figure. Here the appraiser, not you, sets the number.
Step 3: The appraisal returns value and rent together
One appraisal gives the lender two answers. The value sets your loan-to-value (LTV), which is the loan amount as a percentage of value. The rent schedule sets your coverage ratio. Form 1007 is the standard rent schedule for one unit. Per Fannie Mae’s Selling Guide topic on appraisal forms, it is the form used for one-unit investment properties where rental income matters. DSCR loans are not agency products, so treat this as a form-name reference only. The network’s programs follow their own guidelines.
Step 4: You assemble backup documents
For a converted property, lenders commonly ask for:
- The executed lease and any addenda
- Proof of the security deposit and first month’s rent
- Deposit records showing rent actually paid
- A letter of explanation for the change of use
Step 5: You decide how to use the old STR records
Trailing platform payouts, property-manager statements, and bank deposits are not the rent used for lender review on an LTR file. They still do real work. They show the property has rental demand. They show the history of ownership. They also show that you do not occupy the house, which supports its business-purpose status.
Step 6: The lender weighs the whole file
Four things decide the outcome: lease versus appraiser rent, the new PITIA, the loan size and structure, and whether the lease is fresh and paid. Your old payment, if you are refinancing, does not matter. Only the new PITIA counts.
Which Document Wins? A Decision Table
| Your situation | rent used for lender review usually comes from | STR records role |
|---|---|---|
| Signed lease, tenant paying | Lower of lease and market rent | Supporting |
| Signed lease, no payment proof yet | Same, but expect deposit questions | Supporting |
| Vacant, between tenants | Appraiser’s market rent | Supporting, plus explanation letter |
| Still taking some short stays | May be treated as STR | Central |
| Furnished mid-term lease | Program-dependent | Program-dependent |
The last two rows deserve attention. If you still accept some guest stays, a lender may treat the property as an STR file. That pulls in STR history and STR-specific rules. Short-term rentals through the network typically allow purchase leverage up to 75% LTV and cash-out or refinance leverage up to about 70%, with a 640+ score and about 12 months of hosting history expected. Those are STR-collateral figures. If you want a clean LTR file, make the conversion complete.
Furnished mid-term leases sit between the two worlds. Treatment varies by program, so ask before you assume. Select lenders in the network handle them differently.
Where the General Rule Breaks
A lease below market rent. The lower-of rule caps your coverage at the lease. The common fix is renewing at market before you apply. Program-dependent, but a frequent surprise.
A brand-new lease signed to refinance. Underwriters often want proof the rent is actually paid. One appraiser’s blog describes two consecutive months of deposits as typical for a new lease. Treat that as a common expectation, not a rule, and confirm it per program.
A vacant, between-tenant property. It relies on market rent, often with a short letter explaining the gap between the last guest and the lease start. Programs differ on how much they care.
Mixed or transitional use. Owner stays or occasional bookings can make a file look like an STR. Clean breaks make clean files.
2-4 units. Form 1025 shows per-unit rents rolled into an operating income statement, so each unit’s lease and rent matter.
The conversion needs a new loan. A refinance does not convert an existing loan. It pays it off with a new one. If your current loan carries a prepayment penalty (a fee for paying off early), that cost belongs in your math. Hard-money loans often have one.
Ineligible property types. Manufactured homes (single- and double-wide), log homes, and barndominiums are not offered through the network’s DSCR programs, whether the use is short-term or long-term.
Why Nightly Rate Times 30 Fails
Investors often try to convert STR income by multiplying the nightly rate by 30. It does not work. Fannie Mae’s appraiser update says Form 1007 asks for monthly market rent from competing properties leased monthly, and that using STR comparables with a nightly fee times 30 is incorrect. It also notes that the agency’s Selling Guide does not address whether STR income counts as rental income.
That is agency material, and DSCR loans are not agency products. It matters here because the rent form is the same. The appraiser is valuing the real estate, not auditing your Airbnb revenue. As McKissock, an appraiser-education publisher, explains, Form 1007 documents monthly rent rather than nightly rent or business income, and the income decision ultimately belongs to the lender.
Documenting the STR Side Before You Convert
Even on an LTR file, a clean STR paper trail helps. It also protects you if the lender decides the property still looks like an STR. Build it in this order.
1. Export platform statements. Pull payout and earnings reports from each platform you used. Cover your full hosting period, not just strong months.
2. Add manager statements. If a property manager ran the listing, get their monthly statements.
3. Reconcile to bank deposits. Match payouts to what actually landed in your account. Gaps raise questions.
4. Mark owner stays and blocked dates. Separate your own use from guest bookings so occupancy looks honest.
5. Cover multiple listings. If the house sat on more than one platform, combine the reports and note any overlap.
6. Fix incomplete exports. If a platform’s report cuts off, request the missing period before you submit.
Underwriters check a few things in these records: that income is real, that the property is not owner-occupied, and that nothing looks like a different property type than the one being financed. Messy exports are a common reason files stall, because the lender cannot tell what the property was doing.
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.
Documenting the Long-Term Side
A strong lease package is simple and complete. The lender wants to see a signed lease with the right names, the monthly rent, the term, and any addenda. Add proof of the security deposit and first month’s rent. Add deposit records once rent starts flowing. If a property manager now runs the unit, include the management agreement.
Think about what the lender is really checking. Is the rent at market? Is it being paid? Is the tenant real and the arrangement arm’s-length? A lease for a relative at a bargain number, or a lease with no payment trail, invites conditions.
Closing Out the STR Side
Conversion has loose ends that most guides skip. Short-term rental rules can vary by city, county, HOA, and property type, so confirm local rules before relying on projected rental income. Beyond that, tidy your own records. Note when STR bookings ended. Update your insurance so the policy matches the new use, since a landlord policy differs from an STR policy. Keep copies of any registrations or accounts you closed. A short letter of explanation tying these together keeps the story consistent.
A Before-and-After Example
Run the numbers on one property two ways. These inputs are modeled assumptions, not market data.
Assume a house with a modeled monthly obligation of 1.00 unit. On STR income, the projected rent might cover that obligation at about 1.5x. After conversion, the signed lease rent covers it at about 1.15x. Same house, same loan. The ratio drops because long-term rent is lower than STR income.
Now flip the lease. If the lease is under the appraiser’s market rent, say covering 1.05x, the lower-of rule holds you at 1.05x even if market rent would support 1.15x. Renewing at market rent before applying lifts the ratio back.
Clearing 1.00 is a starting line, not a profit statement. Coverage counts only PITIA. Repairs, vacancy, management, utilities, and capex sit outside it. HousingWire notes that many lenders look for a DSCR of at least 1.1, and that rising taxes, insurance, and operating costs can break the math. Across the wholesale network, 1.00 is where select programs start. Stronger ratios generally open better pricing and leverage. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted.
What Brokers See on Converted Files
Files that convert from STR to LTR tend to go wrong in the same few places. The investor signs a below-market lease to get a tenant in fast, then applies before the lease has any payment history. Or the investor applies while the unit is vacant and is surprised that the appraiser’s rent comes in lower than the old Airbnb run rate. The stronger files have a market-rate lease, deposit records, and a short explanation letter ready before the application goes in.
Common Mistakes and File-Stall Triggers
| Mistake | Why it matters | Fix |
|---|---|---|
| Counting STR payouts as rent | They are not the LTR basis | Use lease or market rent |
| Below-market lease | Caps coverage at the lease | Renew at market first |
| No proof rent was paid | Raises underwriter questions | Keep deposit records |
| Messy platform exports | Hides what the property did | Reconcile before submitting |
| Still booking guests | May reclassify the file as STR | Finish the conversion |
| Ignoring prepayment penalty | Eats the benefit of refinancing | Check the old loan terms |
Pre-Submission Checklist
- Executed lease and addenda
- Security deposit and first month’s rent proof
- Bank deposits showing rent received
- Letter explaining the change of use
- Platform and manager statements, reconciled to deposits
- Insurance updated for the new use
- Entity documents, if the property is held in an LLC, subject to lender program eligibility
- Asset statements to show reserves
Reserves vary by lender, leverage, loan size, and transaction type. Many files see about 6 months of PITIA, with higher requirements on larger loans.
What the Program Numbers Look Like
For a standard rental, purchase leverage on most files lands at 75%-80% LTV, with select high-leverage programs reaching 85% LTV at roughly a 700+ score. Cash-out refinance on a standard rental tops out around 75% LTV, and about 6 months of seasoning is the common expectation. On STR collateral, purchase goes to 75% and cash-out to 70%. Most programs want a score around 660, with a 620 floor in parts of the network and 700+ unlocking the strongest tiers. Loans run up to $3,000,000 on standard programs (smaller balances available through select lenders). All of this is subject to lender guidelines, credit approval, and property review. A bigger down payment can lift your coverage, but it never replaces the credit, reserve, or property rules.
If your conversion plan involves pulling equity afterward, Lendmire’s piece STR to LTR DSCR Cash-Out Seasoning and Income Documentation covers the waiting period and records in detail.
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.
Frequently Asked Questions
Can I use my STR history if the property will be a long-term rental?
Not as the rent used for program review. On an LTR file, the lease or the appraiser’s market rent drives coverage. Your STR history still helps as supporting evidence of demand and non-owner use.
Do I need a lease before applying?
No. A vacant property can qualify on the appraiser’s market-rent opinion, subject to lender guidelines. A signed, paid lease at market rent usually makes the file cleaner, and it avoids the lower-of cap when the lease is under market.
Will the lender want my traditional personal-income documentation?
Programs vary. DSCR files qualify primarily on property-level rental income rather than personal income documents. Some lenders may still ask for extra records on mixed-use or STR-style files. Ask your broker before you pull anything.
What if I still host a few guests?
The file may be treated as an STR, which brings in STR history and STR rules. That means roughly 12 months of hosting history and a lower leverage ceiling on cash-out. If you want an LTR file, end guest bookings first.
Does refinancing convert my current loan to a long-term rental loan?
No. A refinance is a new loan that pays off the old one. Check the old loan for a prepayment penalty before you commit.
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. You can also see Lendmire’s guide How to Document STR Income for a DSCR Cash-Out Refinance.
For current guidelines and terms, see Lendmire’s DSCR loan programs page.
About Lendmire
Lendmire — NMLS# 2371349 — is a DSCR and non-QM mortgage brokerage with investor loan programs in 41 markets, including Washington, D.C. DSCR eligibility is commonly reviewed by the lender around property-level rent rather than personal income documentation, subject to lender guidelines, and the brokerage helps arrange financing for LLC-owned portfolios beyond conventional financed-property limits. Recognized by Scotsman Guide as a Top Mortgage Workplace in 2025 and 2026.
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References
1. HousingWire: Short-Term Rentals Are Breaking the Appraisal Playbook
2. Fannie Mae Selling Guide B4-1.2-01
3. Appraisal blog: Form 1025 guide
4. Fannie Mae Appraiser Update
5. McKissock: Form 1007 and STR Appraisals
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: Can You Get a DSCR Loan on Retirement Income Alone? · How to Qualify for a DSCR Loan in Massachusetts · How to Qualify for a DSCR Loan in Missouri
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Disclosures. The information presented in this article is general market commentary, not financial, legal, or tax advice. Lendmire is a mortgage brokerage (NMLS# 2371349) — not a direct lender or depository institution — and loan placement is subject to lender underwriting. Nothing in this content represents a commitment to lend. Loan terms, pricing, and program availability vary based on borrower qualifications, property characteristics, and state of subject property, and are subject to change at any time. Lendmire complies with Equal Housing Opportunity requirements. Consumer access: nmlsconsumeraccess.org.