The Quick Read: A projection does not set a price by itself. The supportable price is the lower of two ceilings: the price your return target allows, and the price the lender’s coverage test allows once the projection is cut down to qualifying income.
- Qualifying income is a reduced share of the projection, and the share varies by lender.
- The coverage test compares that income to PITIA (principal, interest, taxes, insurance, HOA dues) only.
- Price feeds back into the test, because a higher price means a larger loan and higher taxes and insurance.
- Short-term rental purchases typically reach 75% LTV, with a 1.00 coverage floor, on the strongest files.
- Passing the coverage test is not the same as making money.
Key Terms Defined
Projection: an address-level revenue estimate built from comparable nearby listings’ nightly rate, occupancy, and seasonality.
NOI (net operating income): revenue minus operating costs, before any loan payment.
Cap rate: NOI divided by purchase price.
DSCR: qualifying income divided by the monthly housing payment.
PITIA: principal, interest, taxes, insurance, and HOA dues if any.
Debt constant: the annual payment per dollar borrowed. It depends on rate and term, so it stays out of the formulas below as a number.
All-in cost: price plus closing costs, furnishing, repairs, and reserves.
What Is a Projection, and What Does a Lender Do With It?
A projection estimates what an address could earn. It is an input to the loan, not a price. Data companies such as AirDNA sell address-level tools that pick comparable listings by bedroom count, capacity, and property type, then project revenue from their trailing nightly rate, occupancy, and seasonality, as Vault STR explains.
Lenders then reduce it. Across the wholesale network Lendmire places files with, the projection is not counted at face value. Select lenders apply their own factor to gross projected revenue, and those factors differ from program to program. That is why two programs can score the same property at different coverage ratios. Exact treatment depends on the lender, the property, and the file.
Which income basis you use matters too. Short-term rental programs typically expect about 12 months of host experience from the borrower. For the property itself, a lender may look at trailing booking history or at a third-party projection when there is no history. Some programs prefer documented history and give projections less weight. Eligibility depends on lender guidelines.
How Does the Price Math Work, Step by Step?
Work backward from income to price. Here is the chain, with no rate or payment dollars:
1. Start with the projected annual gross. Use a conservative case, not the headline number.
2. Apply the lender’s factor. Qualifying monthly income is the projected gross times that factor, divided by 12.
3. Set the maximum PITIA. Divide qualifying income by the required coverage ratio. At a 1.00 floor, the payment can equal qualifying income. At 1.20, it must be about one-sixth lower.
4. Back out taxes, insurance, and HOA dues. What is left is the room for principal and interest.
5. Convert that room to a loan amount. The conversion depends on rate and term. The calculator on this site does that step as an illustrative estimate.
6. Divide by LTV. On a short-term rental purchase, the strongest files reach 75% LTV. Loan divided by 0.75 gives the price this test supports. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.
The loop is the part people miss. Raise the price and the loan grows, but so do taxes and insurance, and the room for principal and interest shrinks. A larger down payment lowers the loan and can lift the coverage ratio. It never overrides leverage caps, credit floors, reserve rules, or property eligibility. Strong files clear both tests: enough equity and enough rental coverage.
The 1.00 floor is where select short-term rental programs start, not a universal standard. Stronger ratios open better pricing and leverage. A separate select-lender path accepts coverage below 1.00, with leverage and terms adjusted.
Which Ceiling Binds First?
Run both tests and take the lower price. The two ceilings answer different questions.
| Test | Question it answers | Formula |
|---|---|---|
| Return ceiling | What can I pay and still hit my target? | NOI ÷ target cap rate |
| Coverage ceiling | What loan does the counted income carry? | Counted income ÷ (coverage × debt constant), then ÷ LTV |
| Supportable price | The lower of the two | Whichever binds |
The return ceiling is your own standard. The coverage ceiling is the lender’s. In low-yield markets the coverage test usually binds, because taxes, insurance, and loan size outrun the counted income. In high-yield markets the return test may bind first, since you may be stricter than the lender.
A useful reference point: BiggerPockets’ state-by-state yield analysis defines gross yield as annual revenue divided by home value. It estimates roughly 10.5% gross yield is needed to cover debt service and operating costs, and finds 26 of 50 cities clear that bar while 24 do not. Its assumptions include financing terms that are illustrative, so treat the framing as useful and the exact figure as a guide.
How Reliable Is the Projection?
The projection is the weakest link, so stress it first. BNBCalc’s AirDNA review says property-level estimates drift 15 to 30 percent in thin markets and suggests discounting them 15 to 25 percent where active listings are few. Vault STR’s review reports independent tests put property-level estimates 15 to 30 percent off actual performance, usually on the optimistic side. Both are third-party opinions, not lender rules. Market-level data tends to be stronger than single-property projections.
Practical habits that keep a file clean:
- Date the report. Projections can change between the day you make an offer and the day the lender pulls its own. Re-run before you rely on the number.
- Check the mix, not just the total. A projection can land near actual revenue with the wrong occupancy and nightly rate. If the mix is wrong, the seasonal picture is wrong.
- Look at what is in revenue. Cleaning fees and prorated future bookings can inflate the picture if they are folded in.
- Build the comp set yourself. The nearest listings may not match your bedroom count, amenities, or capacity.
- Run three cases. Conservative, base, and optimistic. Price off the conservative one.
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. A projection does not check permits.
Why Doesn’t Passing the Coverage Test Mean Profit?
DSCR compares rent to PITIA only. Clearing 1.00 is not positive cash flow. Repairs, vacancy, management, utilities, platform fees, cleaning, furnishing, and capex sit outside the calculation.
The same BiggerPockets analysis shows the gap. Its median example earns a thin cash-on-cash return at a 20% down payment, then turns to an annual loss once a property manager takes a share of gross. The deal could qualify and still lose money. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.
So price the deal on two sheets. Sheet one is the lender’s test: counted income over PITIA. Sheet two is yours: full NOI after every operating cost, over all-in cost. The lower price wins. Cap rate (NOI over price) tells you what the property yields. Cash-on-cash tells you what your cash earns. Use all-in cost, not just price, as the denominator for the second.
Where the Appraisal Comes In
Value and rent are separate opinions. A low appraised value cuts the loan, because LTV is measured on the lower of price or value, and you fund the gap. A low rent figure moves the ratio.
Form 1007, the Single-Family Comparable Rent Schedule, estimates monthly market rent for one-unit investment properties, as Fannie Mae’s appraiser update describes it. It is a conventional-loan form and measures long-term rent. McKissock’s appraisal education piece notes Form 1025 covers two- to four-unit properties and assumes monthly leases. An appraisal firm argues the form cannot support short-term income because that income is driven by pricing, seasonality, reviews, and management, as Class Valuation lays out.
The file consequence: a nightly rate times 30 is not a rent figure, and a multi-unit short-term rental usually needs nightly comp data or a narrative addendum. Expect the lender to want a short-term income analysis where the program requires one.
Where the Rule Breaks
- Thin markets. Few comps mean wide error bars. Discount harder.
- No operating history. A first-time host buying a property with no booking record leans fully on the projection. Programs that expect about 12 months of host experience may not fit a first-time host. Documented history gives a firmer number.
- Refinance. Short-term rental refinances run around 70% LTV, and cash-out is 70% on short-term rental collateral. A refinance sizes the loan off a different cap than a purchase.
- Mixed-use buildings. A building with some annual leases and some nightly units is usually underwritten on a blended income picture.
- Weak credit or low reserves. Short-term rentals typically want a 640 score or better, and reserves vary by lender, leverage, and loan size, commonly around 6 months of PITIA. Strong rent coverage does not fix either.
- Property types. Manufactured homes, log homes, and barndominiums are not offered in the network’s DSCR programs.
When the Asking Price Is Above Your Ceiling
You have four levers: negotiate the price, put more down, switch to a program or documentation path that counts the income differently, or pass. Sub-1.00 coverage is available through select lenders in the network, with leverage and terms adjusted, but that is a structuring choice with a cost, not a way around a weak deal.
Lendmire’s piece How to Turn a Short-Term Rental Projection Into a Maximum Offer Price walks the offer side of this math. For program basics, see the complete DSCR loans guide.
Common mistakes to avoid:
- Anchoring on the advertised gross figure instead of qualifying income.
- Ignoring furnishing, closing costs, and reserves in the cash you need.
- Using a flat annual average when the market swings seasonally.
- Treating a high projected yield as proof instead of a flag to verify.
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
Does a higher projection always support a higher price?
Only up to the point the payment still fits. Taxes, insurance, and HOA dues rise with price and take room from the allowable payment, so the gain is smaller than the projection suggests.
Do I need operating history to buy a short-term rental with a DSCR loan?
Not always, but host experience matters. Short-term rental programs typically expect about 12 months of landlord or host experience, and some lenders also want documented platform income on the property. Without history, the projection carries more weight and gets discounted harder.
What leverage and credit should I expect?
On the strongest files, a short-term rental purchase reaches up to 75% LTV, and refinance or cash-out runs up to 70%. A score of 640 or better is typical. Loans run up to $3,000,000 on standard programs, subject to lender guidelines.
What if the lender’s income number is lower than my projection?
The lender applies its own factor and may pull its own report, so a lower figure is common. Rerun the price on the lower number, then decide whether to negotiate, add equity, or look at another program.
Does a coverage ratio above 1.00 mean the property cash flows?
No. The ratio counts only PITIA against income. Management, cleaning, utilities, and repairs sit outside it, so check NOI separately.
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. Programs are arranged through select lenders in a 41-market wholesale network, subject to lender guidelines and not a commitment to lend.
Investors focused on short-term rentals can review DSCR loans for Airbnb and short-term rentals.
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.
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References
2. BiggerPockets: best short-term rental markets ranked by gross yield
5. Fannie Mae: Appraiser Update, June 2024
6. McKissock Learning: Form 1007 and short-term rental appraisals
7. Class Valuation: Form 1007 and 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 Much Down Payment a DSCR Loan Requires at Purchase · How to Support Value and Rent on a DSCR Appraisal for a Short-Term Rental · 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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Legal disclosures. Lendmire (NMLS# 2371349) is a state-licensed mortgage brokerage that arranges financing through wholesale lender relationships. Lendmire is not a direct lender, depository institution, or registered financial advisor. The discussion above is general informational content about real estate financing — it is not financial, legal, or tax advice, and readers should consult licensed professionals for guidance on their individual circumstances. Loan inquiries are subject to lender underwriting; this article does not represent a commitment to lend. Loan terms, rates, and qualification standards vary by borrower, property, and state, and are subject to change at any time. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.