The Quick Read: Trim the revenue projection, subtract every operating cost to reach net operating income, divide by the return you require, subtract setup costs, then test that price against the lender’s coverage math and the appraisal, and offer no more than the lowest result. It is a solved number, not a percentage of list price. 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.
- Your own return target is often the ceiling that binds, not the lender’s.
- DSCR compares credited rent to the full monthly housing payment only. Clearing it does not mean the property cash flows.
- On short-term-rental collateral, purchase leverage tops out at 75% LTV on the strongest files, and refinance and cash-out sit lower, subject to lender guidelines.
- A projection that runs 15% high can cut the supportable price by far more than 15%, because most costs do not shrink with revenue.
What Is a Maximum Offer Price on a Short-Term Rental?
A maximum offer price is the most you can pay and still meet three tests at once. The lender’s coverage test must pass. The appraisal must support the price. Your own return target must still hold.
Flip investors work backward from a resale value. A short-term rental works backward from income. That makes the revenue projection the most important input in the whole calculation. Everything downstream scales with it.
As a broker placing these files across a network of DSCR lenders, we see the same mistake often. Buyers fall in love with a revenue number, then look for a loan that fits. The sound order runs the other way: work out what the income supports, then offer.
The three ceilings look like this:
| Ceiling | What sets it | Who controls it |
|---|---|---|
| Lender coverage | Credited income vs. full housing payment | Lender guidelines |
| Appraisal | Appraised value of the property | The appraiser |
| Return target | Net operating income ÷ your required cap rate | You |
Step 1: How Do You Trim a Revenue Projection Before Trusting It?
Treat the projection as a range, then pick a conservative point inside it. Data tools build their numbers from nearby comparable listings. AirDNA says its Rentalizer weights comps by similarity and layers on seasonality, demand, and revenue growth. It also assigns each projection a Comp Set Strength rating of Low, Medium, or High, which shows how tightly the comps cluster.
Read that rating before you read the revenue number. A tight comp set means the projection rests on similar homes earning similar money. A loose one means the tool is averaging very different properties.
Here is how we trim in practice:
- Favor market-level data over property-level data. Tools tend to describe a market well and a single house less well.
- Discount thin markets harder. Few active listings means a weaker comp set and a shakier estimate.
- Doubt new listings. A brand-new listing rarely earns a mature listing’s nightly rate in its first stretch.
- Doubt blocked calendars. Dates the owner blocked for personal use can read as demand in some data.
- Pick the weaker of occupancy and nightly rate. If the comps disagree, use the lower figure.
Then set up three cases: base, conservative, and stress. Set your offer on the conservative case. The base case is for hoping, not for bidding.
Step 2: What Goes Into Net Operating Income?
Net operating income (NOI) is revenue minus every cost of running the rental, before debt service. Short-term rentals carry a heavy cost stack. AvantStay puts operating expenses at roughly 30% to 70% of revenue, compared with 35% to 40% for a long-term rental.
That range is wide for a reason. Management style, market, property size, and turnover frequency all move it. Your job is to build the real number for this property instead of borrowing a ratio.
Your expense list should include:
- Platform commissions and payment fees
- Property management, or a management-equivalent line if you self-manage
- Cleaning per turnover
- Utilities, supplies, and software
- Insurance that fits a short-term rental, which usually costs more than a standard landlord policy
- Property taxes
- Repairs and maintenance
- Marketing
- A capital reserve for furniture, appliances, and the roof
Skipping that last line is a common underwriting error. Furniture wears out on a schedule, and guests wear it out faster.
Two items stay out of NOI. Debt service stays out, because NOI measures the property, not your financing. Income tax stays out, because it depends on you, not the asset.
Price the manager in even if you plan to run the property yourself. Your time has a cost, and a future buyer or lender may not assume you will do the work forever.
Step 3: How Do You Turn NOI Into a Price?
Divide NOI by the cap rate you require. Cap rate is NOI divided by value, so the same formula inverted gives you value: NOI ÷ target cap rate = what the income justifies paying. AirDNA’s short-term rental cap rate steps follow this logic: estimate gross income, subtract operating costs, then divide by price or value.
Choosing the target is the hard part. A cash buyer can accept a lower cap rate than a financed buyer, because no debt payment competes for the income. A financed buyer needs the cap rate to sit comfortably above the cost of the debt, or borrowed money works against the return. A cautious buyer demands more, since a projection is a forecast, not a lease.
Run the numbers on a modeled example. These inputs are assumptions, not market data. Index the trimmed annual revenue to 100. Assume operating costs of 45, which leaves NOI of 55. Assume you want an 8% cap rate. NOI ÷ 0.08 gives a price of about 690 on that index.
Now subtract setup costs. Furnishing, startup supplies, and closing costs add to the cash you spend but not to the loan. If they come to 40 on the same index, your return-based ceiling falls to roughly 648. Dividing by all-in cost, not price alone, keeps the return honest.
Step 4: How Does Underwriting Actually Treat the Projection?
Lenders do not treat the projection as qualifying income at full value. Underwriting credits some portion of it, and the portion depends on the program and on how the income is documented. This is often the largest swing between one program and another, so it deserves as much attention as leverage.
DSCR means debt service coverage ratio. For a rental loan it is the income the lender credits, divided by the full monthly housing payment: principal, interest, taxes, insurance, and any HOA dues (together, PITIA). Operating costs do not appear in that math. Our complete DSCR loans guide covers the basics if you are new to the ratio.
Here is the back-solve, in plain algebra:
1. Credited annual income = projection × the program’s credit factor.
2. Credited monthly income = that figure ÷ 12.
3. Maximum PITIA = credited monthly income ÷ the DSCR floor.
4. Subtract taxes, insurance, and HOA from maximum PITIA. What remains supports principal and interest.
5. That principal-and-interest room supports a maximum loan.
6. Maximum price ≈ maximum loan ÷ LTV. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.
Taxes and insurance rise as price rises. So you cannot solve this in one pass. Guess a price, compute the taxes and insurance for it, find the loan it supports, and repeat until the numbers settle. A spreadsheet does this in a minute.
Now the program facts. On short-term-rental collateral, select programs in our network typically allow purchase leverage up to 75% LTV on the strongest files. Short-term-rental refinances typically sit around 70%, and short-term-rental cash-out also tops out near 70%. Expect a credit score of 640 or higher and about 12 months of hosting history. On a purchase, the coverage floor is 1.00 on select programs. On a refinance, it is also 1.00 on select programs. A stronger ratio can open better pricing and more leverage. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted. Standard loan sizes run up to $3,000,000. All of this is subject to lender guidelines and individual file review.
A bigger down payment lowers the payment and can lift the coverage ratio. It does not erase leverage caps, credit floors, reserve rules, or property eligibility. The strongest files clear both tests: enough equity and enough coverage.
Clearing 1.00 is also not the same as positive cash flow. Repairs, vacancy, management, utilities, and capital reserves all sit outside DSCR. That gap is why Step 2 exists.
Step 5: What Does the Appraisal Do to Your Ceiling?
The loan is sized on the lower of the price or the appraised value. If you offer above appraised value, you cover the difference in cash. So the appraisal acts as a third ceiling, and it can land below the other two.
Appraisers face a real limit on short-term rentals. Per McKissock’s appraiser education, an appraiser cannot multiply a nightly rate by 30 on the standard single-family rent schedule, Form 1007. The form cannot document short-term rates, and the income approach may fit these properties better. Two- to four-unit buildings use Form 1025, a small income report with unit-level rents and an operating statement.
For contrast only, conventional lending treats the form narrowly. Fannie Mae’s note, hosted by the Nevada Real Estate Division, says the 1007 documents estimated monthly market rent for a single-family investment property. DSCR loans are not agency products, so the program rules there do not govern your file. The lesson carries over anyway: the appraiser’s rent opinion and your projection may not match.
Step 6: Take the Lowest of the Three
Compare your three numbers and pick the smallest. That is the maximum offer. If the return ceiling is lowest, the lender would let you pay more, but your own math says you should not. If the lender ceiling is lowest, the property can be a good deal at a higher price and you may still be unable to finance it.
Then stress the result. Cut revenue and recompute. The table below uses the earlier modeled example, where costs are assumed to stay near 45 on the index even when revenue falls. Most costs are partly fixed, so this is a fair first pass. These are modeled figures, not market data.
| Revenue vs. projection | NOI (index) | Ceiling price vs. base |
|---|---|---|
| 110 | 65 | About 118% |
| 100 (base) | 55 | 100% |
| 90 | 45 | About 82% |
| 85 | 40 | About 73% |
A revenue miss of 15% cuts the supportable price by roughly 27%. That is why a projection that looks only slightly optimistic can sink an offer.
Where Does the General Rule Break?
The method holds in most files, and these edge cases bend it.
An operating rental versus a projection. A property with a track record can document actual history, such as a management statement or bank deposits. A purchase with no history leans on a projection or an appraiser’s income analysis. The same gross revenue can earn different credited income under different documentation, so the same property can support different offers. Programs in our network expect about 12 months of hosting history for the investor, which is a separate point from the property’s own record.
Two- to four-unit buildings. Rents are unit-level and the appraisal form changes. Mixed-use setups, with some units on annual leases and others nightly, are treated differently from program to program.
Thin or seasonal markets. The comp set is weaker and the projection less reliable. A Low comp strength rating is a signal to cut the projection harder.
Rule-limited markets. A permit or licensing problem can invalidate the projection entirely.
Rehab and condition. Lenders generally want the property rent-ready, and the projection assumes a furnished, well-run listing. Furnishing adds to cash required but not to the loan.
Property types outside the network. Manufactured homes, log homes, and barndominiums are not offered through these DSCR programs, however good the projected revenue looks.
Lender coverage versus investor return. A deal can clear a DSCR test and still fail your return test. Gross income over PITIA ignores operating costs you still pay.
First-year ramp. A new listing needs time to build reviews. If the projection assumes stabilized income, add the ramp-up shortfall to your cash needs, or price the first year at a lower level.
Already own a vacation home you want to rent out? Lendmire’s piece on converting a vacation home into a short-term rental loan covers that route. If the property is already operating and you want to move it into DSCR financing, see Lendmire’s walkthrough on refinancing a short-term rental into a DSCR loan.
From Ceiling to Offer: What Do You Actually Bid?
Your maximum is a walk-away line, not an opening bid. Set three numbers before you talk to the seller: an opening offer, a target, and the ceiling.
The opening offer should sit well below the ceiling, with room to move. The target is where you expect to land. The ceiling is where you stop, even if you like the house.
If the ceiling sits far below the asking price, the answer is often to pass. The seller may be pricing on peak-season revenue or an owner’s best year. Do not talk yourself into the projection to justify the list price.
Plan for an appraisal gap, too. If the value comes in low, your options are more cash, a renegotiated price, or walking away. A ceiling built on the conservative case gives you room to absorb a modest gap without breaking your return target.
If the property needs work, add renovation costs to all-in cost before dividing. Do not count income the property cannot earn until the work is finished.
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
Net operating income (NOI): Revenue minus operating costs, before debt payments and income tax.
Cap rate: NOI divided by property value, used to compare what income a price buys.
DSCR: The credited rental income divided by the full monthly housing payment.
PITIA: Principal, interest, taxes, insurance, and HOA dues, the full monthly housing payment.
LTV (loan-to-value): The loan amount as a share of the price or appraised value, whichever is lower.
All-in cost: Price plus furnishing, startup, and closing costs.
Comp set: The group of nearby comparable listings a projection tool uses to estimate revenue.
Common Mistakes
- Treating the projection as qualifying income at full value.
- Treating gross revenue as NOI.
- Skipping the capital reserve.
- Using the same expense ratio on every property.
- Assuming the appraisal will confirm the rental revenue.
- Sizing the offer on the base case instead of the conservative one.
- Confusing a passed DSCR test with a good deal.
Frequently Asked Questions
Should I use the projection or my own number?
Use your own trimmed number, built from the comp set’s weaker figures. The tool’s output is a starting point. Lenders credit only part of a projection anyway, so a conservative input costs you little in qualification and protects your return.
What is the difference between cap rate and cash-on-cash return?
Cap rate measures the property’s income against its price, ignoring financing. Cash-on-cash measures your yearly cash return against the cash you put in, after debt payments. A property can show a good cap rate and still produce a poor cash-on-cash return once the loan is added.
How much can I borrow against a short-term rental?
On short-term-rental collateral, select programs typically allow up to 75% LTV on a purchase, with refinance around 70% and cash-out up to 70%. Terms depend on the borrower, the property, and the lender.
Does passing the DSCR test mean the rental makes money?
No. DSCR compares credited rent to the full housing payment and ignores repairs, vacancy, management, utilities, and capital costs. Run your own NOI model to see what the property actually earns.
What if my maximum offer is far below the asking price?
Usually that means the price rests on optimistic revenue. Make a lower offer with a firm walk-away line, or pass. A property that only works on the best case is a bet on the projection, not an investment you can underwrite.
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 financing through select lenders in its wholesale network across 41 markets, including Washington, D.C. Programs change, and every file is underwritten individually by the lender.
About Lendmire
Lendmire, NMLS# 2371349, is a mortgage brokerage focused on investor financing, arranging DSCR loans in 40 states plus Washington, D.C. — 41 markets total. Qualification is based on the property’s income rather than personal income documentation, subject to lender guidelines, making it a fit for LLC-held rentals and scaling portfolios. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
2. AvantStay: Calculating NOI for Short-Term Rentals
3. AirDNA: Short-Term Rental Cap Rate
4. McKissock Learning: Form 1007 and Short-Term Rental Appraisals
5. red.nv.gov: Fannie Mae 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: Second-Home Mortgage vs DSCR Loan on a Short-Term Rental · Airbnb Income vs Long-Term Rent Fallback on a DSCR Short-Term Rental Loan · How to Finance a 2-4 Unit Airbnb With a Short-Term Rental 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.