The Quick Read: A converted rental has lease history but no booking history, so the file has to prove three things: when the conversion happened, what income the property can reasonably earn as a short-term rental, and that the unit can legally operate. Lenders weigh these differently, and the income basis they accept decides the outcome.
- Pick the income basis first: booking history, a market projection, or the appraiser’s long-term rent.
- Expect the lender to discount any projection, and to look at your hosting track record on other properties.
- Keep the old lease period and the new booking period clearly separate in the file.
- Prove legal use and swap the landlord insurance policy for short-term-rental coverage.
- Clearing 1.00 on the coverage ratio is not the same as the property making money.
Key Terms Defined
DSCR (debt service coverage ratio): the property’s qualifying monthly income divided by its monthly housing obligation. Above 1.00 means the income covers the payment on paper.
PITIA: principal, interest, taxes, insurance, and any HOA dues. It is the payment side of the DSCR math.
LTV (loan-to-value): the loan amount as a percentage of the property’s appraised value.
Trailing-12 history: a statement of the last 12 months of actual booking income, from the platform or a property manager.
Market projection: an estimate of what a property should earn, built from nearby comparable listings. AirDNA’s Rentalizer is the best-known example.
Rent schedule: the appraiser’s estimate of long-term market rent, documented on Form 1007 for a single-family home or inside Form 1025 for a 2-4 unit property.
Conversion date: the single date the property stopped being a long-term rental and started operating as a short-term rental.
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.
Why Does a Conversion File Look Different?
A conversion file has two income eras in one folder, and underwriters need to see them kept apart. The long-term lease era proves the property can hold a tenant. The short-term era, if it exists yet, proves the new income. Blend them and the file gets confusing.
A DSCR loan qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. That is why the paper trail matters so much. There is no personal income file to fall back on, so the property’s income documents carry the whole story.
Here is the catch with conversions. Most short-term-rental programs want income evidence from actual hosting. A property that just switched has little or none. So the file leans on something else: a projection, the appraiser’s rent schedule, or your experience running other short-term rentals.
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.
Which Income Basis Will the Lender Use?
Lenders pick one of three bases, and which one applies depends on the program. Across the wholesale network Lendmire places files with, programs differ on whether they accept projections for a conversion, how steeply they discount them, and whether projections work on a purchase, a refinance, or both.
| Income basis | When it applies | Main weakness |
|---|---|---|
| Booking history | Property already operated as an STR | Doesn’t exist yet on a fresh conversion |
| Market projection | Conversion with no history, if the program allows it | Discounted, and often optimistic |
| Appraiser’s long-term rent | Fallback when projections aren’t accepted | Usually sits well below STR potential |
Projections deserve a closer look. AirDNA’s help center explains that Rentalizer estimates revenue, nightly rate, and occupancy from the performance of similar nearby active listings. The figure is host revenue (nightly rates and cleaning fees, less discounts, platform fees, and taxes), not the guest’s checkout total, per AirDNA.
That distinction matters when you read your own report. Make sure the number you are comparing against the payment is the host-revenue number.
The Conversion Timeline
The cleanest files follow a sequence. Each step creates a document the underwriter will ask for later.
1. Fix the conversion date. Decide when the last long-term rent period ends and the first booking period begins. Make the lease end, move-out, and first listing line up.
2. Close out the old tenancy in writing. Keep the lease, any termination or non-renewal notice, and the security-deposit disposition.
3. Open a dedicated deposit account. Route platform payouts there from the first booking. Deposits that match platform statements are the easiest income to verify.
4. Confirm legal use before listing. Gather the permit or license, and re-check HOA and zoning rules.
5. Change the insurance. A landlord policy written for a long-term tenant often doesn’t fit nightly stays. Get coverage that names short-term-rental use.
6. Pull the projection report for the subject address, and order the appraisal with the rent schedule.
7. Package the file in the order the underwriter will read it: income, transition, legal and insurance, then borrower items.
What Goes in the File?
Group the documents by the question each one answers.
Income evidence
- The projection report for the subject property, if the program accepts one.
- Any booking records or platform payout statements since the conversion.
- A property-manager agreement, if one runs the unit.
- Your hosting records from other properties, which support the experience requirement.
Transition evidence
- The final long-term lease and the termination or non-renewal notice.
- Proof of the conversion date: first listing, first confirmed booking.
- Deposit disposition for the departing tenant.
Legal and insurance
- The STR permit or license where one is required.
- HOA rules or written confirmation that rentals under 30 nights are allowed.
- The short-term-rental insurance policy.
Borrower and property
- ID, credit authorization, and proof of assets and reserves.
- Entity documents if title sits in an LLC, subject to program terms.
- The appraisal with the rent schedule.
Reserves vary by lender, leverage, loan size, and transaction type. About 6 months of PITIA is a common expectation across the network. Short-term-rental files can draw closer scrutiny on this item, so confirm the figure for your program before you pull assets together.
Documenting the Transition
Underwriters hate unexplained gaps. If the unit sat empty for a month between tenants and the first guest, write that down. A one-paragraph timeline in the file beats a loose end the underwriter has to chase.
Keep the two periods separate. Don’t average long-term months with short-term months to build a blended income number. A lender using booking history wants booking months. A lender using the lease wants lease months. Mixed averages satisfy neither.
Deposits must match the platform. If payouts in your account don’t tie to the statements, expect questions. Personal funds mixed into the same account make that worse.
Hybrid history is its own gray zone. Say you have three months of bookings after converting. Some programs will count that as supporting evidence next to a projection. Others will want a fuller record. That is a program question, so ask before you submit.
Where Does the Appraisal Fit?
The appraisal sets value, and value drives LTV. It also produces the long-term rent fallback. Fannie Mae’s appraiser update describes Form 1007 as the document of the appraiser’s estimate of monthly market rent on a single-family investment property. DSCR loans are not agency loans. The form is simply the common paperwork for the rent schedule.
Here is the point many conversion investors miss. A rent schedule shows long-term market rent, not Airbnb income. If your program defaults to it, a deal that clears 1.00 on short-term income can come up short on paper. Plan for that before you order anything.
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.
Worked Example: Same House, Two Income Bases
Run the numbers on a modeled single-family conversion. These are assumptions for illustration, not market data.
Assume the projection, after the program’s discount, produces coverage of about 1.25x. Assume the same house on the appraiser’s long-term rent produces about 0.85x. The qualifying income on the projection basis is roughly 1.5 times the long-term figure, and the payment side is identical.
Same house. Same loan. Opposite results.
On the 1.25x basis, the file clears a 1.00 floor with room to spare. On the 0.85x basis, it sits under that floor. Coverage below 1.00 is available through select lenders in the network, with leverage and terms adjusted. So the lower result does not end the conversation, but it changes it.
Now take a harder scenario. Suppose the same house has a short booking record, and the lender discounts the projection further because history is thin. Coverage might land near 1.05x. That is thinner than it looks, because the lender’s number depends on the discount and your actual bookings may differ.
Coverage is also not cash flow. The ratio compares qualifying income to PITIA only. Repairs, vacancy, furnishing costs, platform fees, utilities, and management all sit outside it. Stress-test your own deal at an income lower than the report shows.
Where the General Rule Breaks
Not every lender has a short-term-rental program. Some DSCR lenders only underwrite long-term leases. The right lender for an STR conversion is a matter of matching the program to your file.
Medium-term rentals have no equivalent tool. A furnished stay of 30 days or more has no AirDNA-style projection behind it. These conversions usually fall back to long-term rent.
Projection quality varies by market. Rentalizer’s “Revenue Potential” figure assumes the property is available every night of the year, per Your.Rentals. Projections also tend to run optimistic. RentalRecon notes the tool is most reliable in large, data-rich markets and needs a custom comp set in small ones.
Property type changes the form. Single-family uses the Form 1007 rent schedule. A 2-4 unit property uses the rent analysis inside Form 1025. Condos add HOA and rental-restriction questions. Manufactured homes, log homes, and barndominiums fall outside these programs entirely.
Legal use is a hard gate. If zoning, permits, HOA rules, or licensing block short-term use, no projection saves the file.
What Stalls a Conversion File?
- A conversion date that doesn’t match the lease end and first booking.
- Deposits that don’t tie to platform statements.
- Landlord-only insurance on a nightly-stay property.
- A projection pulled with broad averages instead of close comps.
- Income from the wrong period, such as lease months presented as booking months.
- Assuming the report’s number is the number the lender will use.
Wait for History, or Go Now?
This is a real tradeoff, and honestly a toss-up in many files. Waiting for about 12 months of booking history gives you the strongest documentation: platform payouts and deposits. It also sets up a later refinance on actual income. Going now means leaning on a discounted projection or the long-term rent.
On leverage and credit, short-term-rental programs in the network typically work like this. A purchase tops out around 75% LTV on the strongest files. Refinances reach about 70% LTV, and on short-term-rental collateral cash-out also tops out near 70%, versus 75% on a standard long-term rental. Most programs want a 640 score or better. Select programs start at 1.00 coverage on purchases and refinances alike. Many expect about 12 months of host experience, which can come from your other properties. Loan sizes run up to $3,000,000 on standard programs. Everything is subject to lender guidelines and individual underwriting.
A larger down payment lowers the monthly obligation and can lift the ratio. It never erases leverage caps, credit floors, reserve rules, or property eligibility. The strongest files clear both tests: enough equity and enough rental coverage.
Lendmire’s complete DSCR loans guide covers the basics. Two related pieces go deeper: how an LTR conversion qualifies for a short-term rental loan, and what to document for a luxury short-term rental DSCR loan.
Tax treatment varies; consult a qualified professional.
Frequently Asked Questions
Do I need booking history to get a short-term rental DSCR loan on a converted property?
It depends on the program. Many programs expect about 12 months of hosting experience, often counted across your other properties. Select programs accept a discounted market projection for a conversion with no history. Others fall back to the long-term rent.
Will the lender use the number AirDNA shows?
Rarely as-is. Lenders usually discount a projection, and some skip it for the appraiser’s long-term rent. Check your deal at a lower income than the report to see how much cushion you really have.
Does the appraisal show my Airbnb income?
No. The rent schedule on Form 1007 or Form 1025 reflects long-term market rent. The appraisal still matters because it sets value, which drives LTV.
Can I keep the old tenant’s lease in the file?
Yes, and you should. The lease and termination notice document the conversion date. Just keep those months separate from booking months.
Does clearing 1.00 mean the property cash flows?
No. The ratio counts rent against PITIA only. Repairs, vacancy, management, furnishing, and platform fees sit outside it.
Next Step
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 DSCR financing through select lenders in its wholesale network across 41 markets, including Washington, D.C. Reach the team at 828-256-2183.
About Lendmire
Lendmire is a non-QM mortgage brokerage (NMLS# 2371349) arranging DSCR investor loans in 41 markets, including Washington, D.C., through wholesale and investor-lending channels. DSCR loans are evaluated by the lender on rental income rather than personal income, subject to lender guidelines — a fit for LLC-owned portfolios, self-employed investors, and operators scaling beyond conventional loan caps. Recognized as a Scotsman Guide Top Mortgage Workplace in 2025 and 2026.
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References
1. AirDNA Help Center: Rentalizer Revenue Calculator
2. AirDNA
3. Fannie Mae Appraiser Update
4. Your.Rentals: AirDNA Rentalizer Guide
5. RentalRecon: AirDNA Rentalizer Guide
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 a Luxury Rental DSCR Loan Works in Nebraska · How to Qualify for a Portfolio DSCR Loan for Rural Cabin STR Properties · Can a DSCR Loan Be Used for a Commercial Property or Business?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
- North Carolina Real Estate Broker · License# 343312 · Verify on NCREC
- North Carolina Insurance Producer · License# 19053198 · Property, Casualty, Life, Health · Verify on NAIC SBS
- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
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.