The Quick Read: The loan amount is the lower of two ceilings: what the rental income can support and what the leverage cap allows. Interest-only lowers the payment used in the coverage test, so it can lift the first ceiling, but it never moves the second. Across Lendmire’s wholesale network, short-term rental purchases typically top out at 75% LTV.
- Short-term rental purchase leverage is typically up to 75% LTV; refinance and cash-out run up to about 70%.
- Expect a credit score of 640 or higher and about 12 months of hosting history on most files.
- Coverage of 1.00 is where select programs start, and stronger ratios open better pricing and leverage.
- Loan sizes run up to $3,000,000 on standard programs, subject to lender guidelines.
- Interest-only helps only when income, not leverage, is the binding limit.
Investors ask “how much can I borrow” as if one number exists. It doesn’t. Three limits apply at once, and the smallest one wins. This article walks through each limit, shows where interest-only helps and where it doesn’t, and covers what derails short-term rental files in the process.
Short-Term Rental Calculator
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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 Sets the Maximum Loan Amount?
Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.
Final terms depend on the lender’s guidelines, the property type, and the borrower’s complete credit picture.
Three constraints run at the same time: the coverage test, the leverage cap, and the borrower overlays (credit, reserves, experience). The loan can be no larger than the smallest ceiling any of them produces. Interest-only touches only the first one.
DSCR is a property-level ratio. It compares rent used for lender review to the monthly obligation, which means principal, interest, taxes, insurance, and association dues (PITIA). It is not a borrower-income ratio. The general corporate definition of the metric, net operating income divided by total debt service, is a different formula. DSCR loans on rentals use gross rent used for lender review against the housing obligation, with no operating expenses deducted.
That last point matters for a second reason. Clearing 1.00 does not mean the property produces positive cash flow. Repairs, vacancy, management, utilities, and capital expenses all sit outside the calculation. A deal can clear the ratio and still lose money in a slow quarter.
Short-term rental programs in the network typically work like this:
| Factor | Typical short-term rental guideline |
|---|---|
| Purchase leverage | Up to 75% LTV |
| Refinance / cash-out leverage | Up to about 70% LTV |
| Minimum credit score | 640 |
| Minimum coverage | 1.00 on purchase and on refinance |
| Hosting history | About 12 months |
| Loan size | Up to $3,000,000 on standard programs |
These are ranges from select lenders in the network, not promises. Every file is reviewed individually, and Lendmire is a broker arranging the loan, not the lender making the decision.
How Does Interest-Only Change the Math?
Interest-only drops the principal line from the qualifying payment. What remains is interest plus taxes, insurance, and dues, sometimes called ITIA. A smaller denominator produces a higher ratio on the same rent, so a larger loan can pass the coverage test.
Here is the backward solve a processor runs, shown as logic rather than dollars:
1. Take the rent used for lender review and the minimum coverage the program requires.
2. Divide to find the largest total monthly obligation the property can carry.
3. Subtract taxes, insurance, and association dues.
4. What is left is the maximum interest payment.
5. Convert that to a maximum loan balance at the note rate.
6. Compare that balance to the LTV cap on the lower of purchase price or appraised value.
The lower of the two balances is the ceiling. Run the same steps with a fully amortizing payment and the income-supported balance comes out smaller, because part of each payment goes to principal.
Consider a purchase at the 75% leverage cap. If the rent supports a balance well above 75% of value, interest-only adds nothing. The LTV cap binds, and the loan is 75% either way. Now picture a property where rent only supports a balance equal to about 65% of value on an amortizing basis. Interest-only might lift that toward the cap. That is the case where the feature earns its place. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.
Some lenders test coverage on the interest-only payment. Others test on the fully amortizing payment that begins when the interest-only period ends. Which one applies changes the answer, so ask for the written calculation: the qualifying payment, the qualifying income, and the ratio used. Compare the interest-only version to the amortizing version of the same sheet.
For the program mechanics beyond sizing, Lendmire’s complete DSCR loans guide covers the fundamentals.
Which Income Figure Counts on a Short-Term Rental?
On a short-term rental, the income figure often moves the loan amount more than the interest-only feature does. Programs typically pick from three routes: actual platform or management history, a market-data projection, or the appraiser’s long-term market rent as a fallback.
Twelve months of actual history is the cleanest evidence. It matches the roughly 12 months of hosting experience most short-term programs expect. Use the full year, not a trailing three-month snapshot. A summer-heavy window overstates income at a beach property, and a winter window understates it at a ski cabin.
A projection is the alternative for a new purchase with no history. Some lenders haircut it or take the lower of two measures. The fallback is the appraisal’s rent survey. Fannie Mae’s appraisal forms are borrowed here as tools: Form 1007 is the single-family comparable rent schedule and Form 1025 covers 2–4 unit income properties. Fannie Mae’s own guide applies the 1007 to one-unit investment properties where rent is used to qualify. The forms are borrowed. The rules are not. Fannie Mae’s lending rules do not govern DSCR files.
The fallback can hurt. A long-term market rent often sits well below what a short-term rental earns, and a smaller qualifying income means a smaller supported loan. When the lower of two income measures applies, the lower one limits leverage.
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.
Where Interest-Only Doesn’t Help
Interest-only has no effect on the other limits. Say it plainly: it lowers the payment, and that is all it does.
- Leverage caps. Purchases stay at 75% on the strongest files, and refinances and cash-outs near 70%.
- Credit floors. A 640 minimum still applies, and stronger tiers still need stronger scores.
- Reserves. These vary by lender, leverage, loan size, and transaction type. Around 6 months of PITIA is common, with larger loans typically stepping up. Reserves documentation is a frequent source of delay on files.
- Property eligibility. Manufactured homes, log homes, and barndominiums are not offered in these programs.
- Loan size structure. Above $2,500,000, the network generally holds to 30-year fixed structures, so interest-only may not be on the table at the top of the range.
A larger down payment lowers the payment and can lift the ratio. It does not erase the credit floor or the reserve rules. The strongest files clear both tests: enough equity and enough rental coverage.
What About Coverage Below 1.00?
Most short-term rental programs start at 1.00 on both purchase and refinance. A separate path exists through select lenders in the network that take coverage below 1.00, with leverage and terms adjusted. It is a different program, not a lower floor on the same one.
Say a property’s qualifying income lands just short of the line. The options a lender might review are lower leverage, a stronger income measure, an interest-only structure, or that select-lender path. None is a promise. Qualification stays subject to lender guidelines, credit approval, and property review.
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.
What Happens When the Interest-Only Period Ends?
The payment steps up. The balance has not declined, and once amortization begins, the principal line returns. Taxes, insurance, and dues can stay flat and the obligation still rises.
Interest-only improves early cash flow but builds no equity on its own. Any equity growth comes from appreciation or from voluntary paydown. A property that clears 1.15x on interest-only might sit near 1.0x or below once amortizing. Stress-test the property at the amortizing payment before choosing the structure, not after.
Interest-only periods and extended terms such as 40-year structures are available through select lenders in the network. Terms and lengths vary by program, and the spine of the network is still the 30-year fixed.
Borrow the Maximum, or Less?
It’s a genuine toss-up on many files. Borrowing the maximum preserves cash for the next purchase. Borrowing less leaves room for a slow season.
A short-term rental has lumpy income. A file sized exactly at the ratio floor has no cushion if bookings dip. A file sized at a stronger ratio carries better pricing and leverage options, and the payment step-up later hurts less. Investors who plan to scale often hold back some leverage on each property, since a thin cushion on every file makes scaling harder.
Test the property at the off-season. If rent from the weakest quarter would still cover the obligation, the structure is probably sound. If it only works in peak months, the loan is sized too aggressively.
Documents That Keep the File Clean
DSCR loans skip personal income documents, but not everything else. These are the usual friction points:
- Entity documents if the loan is in an LLC, subject to lender program eligibility.
- Platform statements or a market projection report that supports the income figure.
- Reserves documentation, with statements that show seasoned funds.
- Appraisal with a rent schedule.
- Title, and a complete insurance quote that reflects short-term rental use.
- A business-purpose and non-occupancy certification. DSCR loans are designed for non-owner-occupied investment properties. Because they are business-purpose loans, they are reviewed differently from a standard owner-occupied mortgage.
Most files that stall do so on income evidence or insurance. A quote that excludes rental use, or platform statements that don’t match the figure used, sends the file back for another review. Pull both before submitting.
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.
Key Terms Defined
DSCR: Monthly rent used for program review divided by the monthly housing obligation on the property.
PITIA: Principal, interest, taxes, insurance, and association dues, the full payment in a standard coverage test.
ITIA: The same payment with principal removed, used when the loan is interest-only.
LTV: The loan balance divided by the lower of purchase price or appraised value.
Rent schedule: The appraiser’s estimate of market rent, documented on a form such as the 1007.
Frequently Asked Questions
Does interest-only raise how much I can borrow on a short-term rental?
Only when income is the limiting factor. It lowers the qualifying payment, so a larger balance can pass the coverage test. If the 75% purchase cap or the 70% refinance cap binds first, the loan amount is the same either way.
Is coverage tested on the interest-only payment?
It depends on the lender. Some test on the interest-only payment, while others test on the fully amortizing payment after the interest-only period. Ask for the written calculation and compare both versions.
Can I use projected income if the property has no hosting history?
Often yes, on a purchase, though programs typically expect about 12 months of hosting experience from the borrower. Some lenders haircut a projection or fall back on the appraiser’s long-term rent, which can shrink the loan.
Is a coverage ratio below 1.00 workable?
It can be, through select lenders in the network, with leverage and terms adjusted. It is a separate path from the standard 1.00 programs, and approval remains subject to lender guidelines.
Can I close in an LLC?
Often, subject to lender program eligibility. Entity documents are among the most common items that delay a file, so assemble them early.
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.
Interest-only lowers the bar the income has to clear, but the leverage cap still sets the roof.
About Lendmire
Lendmire — NMLS# 2371349 — is a mortgage brokerage specializing in DSCR investor loans, helping arrange financing across 41 markets, including Washington, D.C., through wholesale and investor-lending channels. The model centers on property-level rental income reviewed by the lender rather than W-2 documentation, subject to lender guidelines, suiting entity-owned and multi-property investors. Lendmire holds Scotsman Guide Top Mortgage Workplace recognition for 2025 and 2026.
Investors focused on short-term rentals can review DSCR loans for Airbnb and short-term rentals.
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References
1. Wikipedia – Debt service coverage ratio
3. Fannie Mae Selling Guide B4-1.2-01
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 Release One LLC-Held Rental From a DSCR Blanket Loan? · Full-Doc Jumbo vs Super Jumbo DSCR Loan on a 2-4 Unit Rental · How a Luxury Rental DSCR Loan Works
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
Important disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage brokerage. Lendmire is not a direct lender, depository institution, or financial advisor. All loan inquiries are subject to lender underwriting; this article does not constitute a commitment to lend. Rates, terms, and program guidelines are subject to change without notice and vary by borrower profile, property type, and state. Information in this article is general in nature and is not financial, legal, or tax advice. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.