The Quick Read: A DSCR lender counts only the rental income you can legally earn at the address. A night cap shrinks the nightly income a file can use. A hosted-only rule can remove it entirely for an investor who does not live in the home. The file is then underwritten on the next legal income, usually the appraiser’s long-term rent, or it stops.
- Legality is checked first, before coverage, leverage, or credit.
- A night cap limits unhosted (owner-absent) nights, so a full year of projected nightly revenue is rarely the number that counts.
- A hosted-only or primary-residence rule usually blocks the non-owner-occupied investor model.
- On select programs in the network, a short-term rental purchase goes up to 75% LTV (loan-to-value, the loan as a share of the price), and refinances go up to 70%, subject to lender guidelines.
- The fallback is long-term rent, a medium-term furnished rental, or a different market.
Plenty of deals look great on a nightly-rate calculator and die late in the file. The projection assumed nights the city does not allow. This guide explains how underwriting treats each rule type, step by step. It also covers where the general rule breaks and how to decide before you make an offer.
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
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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 Do Night Caps and Hosted-Only Rules Actually Do?
A night cap limits how many nights per year you can rent the place while you are away. A hosted-only rule allows short stays only when the owner lives there, and often only while the owner is present. Both rules reduce the nightly income a lender can underwrite, but they do it in very different ways.
Three terms keep getting blurred, so here they are side by side:
- Night cap. An annual limit on unhosted nights. Hosted nights, where the owner sleeps in the home with the guest, are often uncapped. The cap trims the income. It does not ban the strategy outright.
- Hosted-only or primary-residence rule. Short stays are allowed only in the owner’s own home. Many cities check this with ID, traditional personal-income documentation, voter registration, or utility bills, per AirROI’s primary residence glossary. An investor who rents the place out full-time usually cannot get a permit at all.
- Non-owner-occupied. The owner does not live there. DSCR loans are built for this kind of property.
That third term is where the trouble starts. The two city rule types pull in opposite directions from the loan. One expects you to live in the home. The other expects you not to.
Some places stack both rule types. San Francisco’s planning office, for example, ties registration to permanent residency and treats hosted and unhosted stays differently, per its short-term rental FAQ. 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.
How Does Underwriting Treat Short-Term Rental Income, Step by Step?
Underwriting runs in a fixed order. The lender confirms nightly rental is legal at the address, picks an income source, adjusts that income for any limits, divides it by the full monthly housing payment, and then applies the leverage tier that fits the income type. Legality always comes before the math.
Step 1: Legality. The lender asks whether nightly rental is allowed. That means the local rules, any permit or registration, and the HOA or condo documents. Across the wholesale network, a short-term rental file that cannot show lawful use does not get to the math stage.
Step 2: Income source. Short-term rental files draw income from one of three places:
- Platform history from Airbnb or VRBO.
- A third-party projection from a data vendor such as AirDNA.
- The appraiser’s rent analysis.
Most programs want about 12 months of hosting or landlord experience on a short-term rental. Lenders also differ on which source they prefer and how much of it they count. Some haircut the gross revenue for vacancy and operating costs. Others use the appraiser’s number only.
Step 3: The legal limit changes the income line. If a night cap applies, a careful underwriter does not count nights above the cap, because they are not legal income. If a hosted-only rule applies and you will not live there, nightly income is not available at all. Policies differ by lender, which is why a comparative view matters.
Step 4: The fallback rent document. For the long-term fallback, the appraiser’s rent schedule does the job. Fannie Mae’s forms list names the two appraisal forms that carry that data: Form 1007, the single-family comparable rent schedule, and Form 1025, the small residential income property report. DSCR loans are not agency products. The forms are simply the standard way an appraiser documents market rent.
Step 5: The coverage math. The lender divides rent used for lender review by PITIA, which is principal, interest, taxes, insurance, and any HOA dues. The rent used is whatever income survives Step 3. On the network’s short-term rental programs, the coverage floor is 1.00 on purchases and refinances. Stronger ratios can open better pricing and leverage.
Step 6: Leverage and credit. On a short-term rental purchase, select programs go up to 75% LTV. On a short-term rental refinance or cash-out, they go up to 70%. Most short-term rental programs want a 640 or higher credit score. All of this is subject to lender guidelines and the property review. The broader mechanics live in Lendmire’s complete DSCR loans guide.
How Does a Night Cap Change the Coverage Number?
It lowers the numerator. Picture the same property underwritten two ways. The first uses a full year of nightly revenue. The second uses only the legal portion, or drops to the appraiser’s long-term rent. The gap between those two ratios is the real deal risk.
Run the numbers on a modeled example. These are assumptions, not market data. A vendor projection assumes the home books most nights of the year, and on that basis coverage comes out around 1.30x. The city, however, caps unhosted nights well below what the projection assumed. A careful underwriter then counts only the capped portion, or switches to the long-term rent schedule. The long-term schedule puts coverage near 0.95x.
That is the difference between clearing the 1.00 floor and sitting just under it. The projection looked comfortable. The legal income was not.
What can a sub-1.00 file do next? There are a few paths a lender may review:
- A sub-1.00 program. Coverage below 1.00 is available through select lenders in the network, with leverage and terms adjusted.
- A larger down payment. Lower leverage lowers the monthly payment and can lift the ratio. It does not erase credit floors, reserve rules, or property eligibility.
- An interest-only period. Select lenders in the network offer interest-only structures that can improve the coverage ratio. Lendmire’s piece How to Use Interest-Only Payments to Qualify a Short-Term Rental DSCR Loan walks through that structure.
- A different rent plan. A furnished rental with stays of 30 nights or more may fit outside the cap, depending on how the city defines short-term. The edge-case section below covers it.
Qualification on any of these paths stays subject to lender guidelines, credit approval, and property review. Nothing here is a promise that a given file will work.
One more point on seasonality. A cap does not just reduce total nights. It forces you to choose which nights to use, and peak-season income gets spent first. Platform history that shows heavy off-season bookings may not survive a cap, because those nights may have been over the limit.
What Happens in a Hosted-Only City?
For a non-resident investor, nightly income is usually not legally available, so the file is underwritten as a long-term rental or it does not proceed. A hosted-only license goes to a permanent resident of the home. A DSCR loan goes to an investor who does not live there. The two do not fit together.
DSCR loans are designed for non-owner-occupied investment properties. Because they are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage. You certify that you will not occupy the property. A license that depends on you living there contradicts that certification.
So what does a lender do with a listing in a hosted-only city? It generally does one of three things.
1. It reviews the property’s rental income as a long-term rental on the appraiser’s rent schedule and ignores the nightly history.
2. It applies a stricter overlay for short-term use.
3. It declines the file, usually when the nightly income was the only reason the deal worked.
Consider a modeled scenario. An investor eyes a small condo in a hosted-only city. The listing shows strong nightly revenue, and the numbers imply coverage around 1.40x. The investor will not live there, so the seller’s permit is the wrong test. The permit may be tied to the seller’s residency and may not transfer. Underwritten on long-term rent, the same property lands near 1.10x. That clears 1.00, which is where many select programs start. But the file is now a long-term rental on that program’s own leverage tiers. On a long-term rental purchase, most files land between 75% and 80% LTV, subject to lender guidelines.
The investment case has to work as a long-term rental. If it does not, the investor has the wrong market. The longer comparison between the two city types is in Lendmire’s piece Hosted-Only City vs Unrestricted Market for a DSCR Short-Term Rental Loan.
Restriction Types Side by Side
Each restriction type removes a different slice of income. The table below shows what each one limits, which income a lender can use, and what the file usually falls back to.
| Rule type | What it limits | Income that counts | Usual fallback |
|---|---|---|---|
| Night cap | Unhosted nights per year | Capped nights only | Long-term rent |
| Hosted-only | Stays when owner is absent | Often none for investors | Long-term rent |
| Primary-residence rule | Permits to owner-occupants | None if non-resident | Mid-term or long-term |
| Permit cap | Number of permits issued | None until you hold one | Long-term rent |
| HOA or rental-pool ban | Nightly use in the community | None | Long-term rent, if allowed |
A permit waitlist does not count as a permit. Underwriters want proof of lawful use today, not a place in line.
Where the General Rule Breaks
The general rule is that legal nightly income counts and illegal income does not. Several situations bend it.
Stays of 30 nights or more. Some cities define short-term rental as stays under 30 nights. San Francisco’s planning office, for instance, says monthly rentals fall outside its program, per its enforcement page. That is why furnished mid-term rentals show up as a workaround. The lease length and the real guest mix become underwriting facts. Thresholds differ by city, so check the local definition. Do not assume mid-term is always allowed.
Hosted nights. Hosted stays are uncapped in some cities. But hosted income from a room in your own home is not what an investor DSCR file underwrites, because the property is non-owner-occupied.
Three separate gates. City rules, HOA documents, and rental-pool agreements are different approvals. Clearing one does not clear the others. A seller’s strong listing history is not proof you can operate legally.
Small multifamily under a cap. A duplex or fourplex can face the cap on each unit differently.
Entity vesting. If a license is tied to a resident, holding title in an LLC does not fix it. Loans to LLC-titled borrowers are available subject to lender program eligibility, but the entity does not change what the city allows.
Mixed portfolios. No national rule decides whether short-term and long-term rentals can share one blanket loan. Many programs treat the short-term property separately or more tightly.
Rule changes after closing. A new city rule or an HOA amendment can strand a loan sized on nightly income. AirROI reports that New York City’s median minimum stay moved to about 25.8 nights after enforcement, per its primary residence glossary. Enforcement also makes unregistered or over-cap listings easier to spot. Past income earned outside the rules is a weak basis for qualifying.
Here is the practitioner view from the wholesale side. The files that stall are rarely the ones with a low ratio. They are the ones where nobody checked the cap until the appraisal came back. A lender that sees an unverified permit and a projection-only income story will often reset the whole file to long-term rent. Settling legality before the contract goes out saves the most pain.
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 Do the Loan Numbers Look Like on a Short-Term Rental File?
Most short-term rental files in the network are structured around a few core parameters, all subject to lender guidelines:
- Purchase leverage: up to 75% LTV on a short-term rental purchase, on the strongest files.
- Refinance and cash-out: up to 70% LTV on short-term rental collateral.
- Credit: a 640 minimum score is typical.
- Coverage: a 1.00 floor on purchases and a 1.00 floor on refinances, each on its own program terms.
- Experience: about 12 months of hosting or landlord history.
- Loan size: up to $3,000,000 on standard programs, with smaller balances routed through select lenders.
- Reserves: they vary by lender, leverage, loan size, and transaction type. Around 6 months of PITIA is common, and larger loans typically step up.
Two cautions matter here. First, clearing 1.00 does not mean positive cash flow. DSCR compares rent to PITIA only. Repairs, vacancy, management, utilities, and capital expenses sit outside the calculation. Second, a bigger down payment helps the ratio but never replaces the other tests. The strongest files clear both: enough equity and enough legal rental coverage.
Not every property fits. Manufactured homes, log homes, and barndominiums are not offered through the network’s DSCR programs.
What Proof of Legal Use Will a Lender Ask For?
Expect to document the permit or registration, the cap or hosting status, and the building’s own rules. The more of this you gather before offering, the less likely the file is to unravel. A typical package includes:
- The city registration or permit, with evidence of its cap or hosting conditions.
- HOA or condo rules and any rental-pool agreement.
- Platform statements or a third-party income report.
- The appraiser’s rent schedule.
- Insurance that covers short-term use.
- Proof of transferability, if the seller holds a permit.
What Should You Ask Before You Make an Offer?
Ask the city, the HOA, and your broker the same six questions, which cover what is legal, what is documented, and what is the fallback. Put the answers in writing before you spend money on an appraisal.
1. Is nightly rental allowed for a non-owner-occupied property at this address?
2. Is there a cap, and does it apply to unhosted nights only?
3. Can a permit transfer, and does a waitlist count?
4. Do the HOA documents allow short stays, and can they change?
5. What does the file look like on long-term rent alone?
6. Does the deal still make sense if the nightly income vanishes?
If the answer to the last question is no, the offer price is built on income you may not be allowed to earn. 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 (debt service coverage ratio): The property’s monthly rent divided by its full monthly housing payment. A result of 1.00 means rent just covers the payment.
PITIA: Principal, interest, taxes, insurance, and any association dues. It is the payment the rent has to cover.
LTV (loan-to-value): The loan amount as a percentage of the property’s price or value.
Night cap: A local limit on how many nights a year you can rent a home while the owner is away.
Hosted stay: A rental where the owner stays in the home with the guest.
Appraiser’s rent schedule: An appraisal exhibit estimating what the home would rent for on a long-term lease.
Mid-term rental: A furnished rental with stays of roughly 30 nights or longer.
Frequently Asked Questions
Can a DSCR loan finance a short-term rental in a night-cap city?
Often yes, but the income counted is the legal income. The lender may count only the capped nights or fall back to long-term rent. Select programs in the network go up to 75% LTV on a short-term rental purchase, subject to lender guidelines and property review.
Will a lender use my AirDNA projection or the appraiser’s number?
It depends on the program. Some lenders use a projection or platform history, often with a haircut. Others use only the appraiser’s market rent. In a capped or hosted-only city, even a lender that accepts projections will limit them to what the rules allow.
Does an existing permit from the seller make the deal safe?
Not by itself. Permits can be non-transferable or tied to the owner’s residency. A lender wants evidence you can operate lawfully after closing, and the seller’s permit may not provide that.
What if the file falls below 1.00 once the cap is applied?
Coverage below 1.00 is available through select lenders in the network, with leverage and terms adjusted. A larger down payment or an interest-only structure from select lenders can also improve the ratio. Each option is reviewed on its own merits.
Can I use a furnished 30-night-plus rental to get around a cap?
Sometimes. Some cities treat stays of 30 nights or more as outside the short-term program, but definitions differ and HOA rules may still apply. The lease length and real guest mix become underwriting facts, so confirm the local definition first.
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 that arranges financing through select lenders in its wholesale network across 41 markets, including Washington, D.C. Run the deal on long-term rent first, and treat every night of legal nightly income as a bonus rather than the foundation.
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
1. AirROI – Primary Residence Requirement
2. San Francisco Planning – Short-Term Rental FAQs
3. Fannie Mae – Selling & Servicing Guide Forms
4. San Francisco Planning – Complaints and Enforcement
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: Does a DSCR Refinance on a Rental Take Longer Than a Purchase? · Does a 40-Year Short-Term Rental DSCR Loan Let You Borrow More? · Can a First-Time Rental Buyer Get a DSCR Loan If Rent Falls Short?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Required disclosures. Lendmire (NMLS# 2371349) operates as a licensed mortgage broker, not a direct lender or depository. The discussion in this article is general in nature and should not be relied upon as financial, legal, or tax advice — every investment scenario is unique and should be reviewed by a qualified professional. Any loan inquiry is subject to lender underwriting, and this article is not a commitment to lend or a guarantee of approval. Mortgage rates, loan terms, and program guidelines vary by borrower, property, and state, and may change without notice. Equal Housing Opportunity. Verify licensure at NMLS Consumer Access.