Net Operating Income for Short-Term Rental Properties

Long-term rental operating expenses typically run 35 to 40 percent of gross rent. Short-term rental operating expenses routinely run 50 to 60 percent or higher. That is a structural difference, not a sign of mismanagement, and conflating the two frameworks is how otherwise intelligent investors end up surprised by their own properties.

The divergence runs in several directions at once. In a long-term rental, tenants pay their own utilities. In an STR, the owner pays everything: electricity, water, gas, internet, all of it, across every guest stay. Professional cleaning happens after every single checkout, not once between tenants. Platform and OTA commissions have no long-term rental equivalent. And vacancy behaves completely differently: long-term landlords budget around five percent; STRs commonly see 30 to 40 percent depending on market seasonality and competitive density. These aren't minor adjustments to the same model. They are different models.

The U.S. STR market was estimated at $68.64 billion in 2024, projected to grow at 7.4 percent annually through 2030. The average U.S. occupancy rate was 54.7 percent in 2024 per AirDNA, which means most properties are already operating below the 60 percent threshold commonly used in pro forma projections. The default assumptions overstate NOI before you've entered a single expense line.

Plugging STR numbers into a long-term rental NOI template produces a misleadingly optimistic result. The template wasn't built for this cost structure. The error doesn't announce itself; it accumulates quietly until the monthly bank statement makes the argument you should have made in the spreadsheet.

Building the Revenue Side: What Counts as Gross Operating Income for an STR

Start with nightly rental income, and calculate it seasonally. A flat annual average is a fiction. A coastal property at $500 per night in peak summer, $300 in shoulder season, and $200 in winter produces a very different annual figure than a blended daily rate multiplied by 365 would imply. The U.S. average daily rate was $248.57 in 2025 per AirDNA, a useful sanity-check benchmark, not a target. Your specific competitive set matters more than the national average, and markets diverge enough that the national figure can actively mislead you.

Ancillary income belongs in gross operating income. Cleaning fees passed through to guests, pet fees, early check-in and late checkout charges, damage waivers: all of it counts. Per Enso Connect data from 2024 to 2025, upsells can generate up to $147 per listing per month. That figure is easy to omit in a quick model, but meaningful if you're operating multiple properties or trying to move a margin by a few percentage points.

Vacancy is the largest variable on the revenue side and should not be treated as a fixed plug. Model it by season if you can. A single annual haircut applied uniformly understates the problem in shoulder months and overstates it in peak periods, which makes the annual total look more stable than it actually is. Understating vacancy is the most common mechanism by which STR pro formas overstate income. I've reviewed dozens of acquisition models where the vacancy assumption was a single optimistic number chosen to make the deal look attractive. It almost never reflects what the market actually delivers.

What does not belong here: gross platform payouts that include pass-through lodging taxes, security deposits that were returned, and refunded cancellations. Including any of those inflates the revenue side with dollars that were never the owner's to keep.

The Operating Expense Categories That Matter Most for STRs, and What They Actually Cost

Cleaning and turnover typically run 10 to 15 percent of gross revenue, per AvantStay analysis. Every checkout triggers a professional cleaning. Linens need washing or replacing; toiletries get restocked. At high occupancy, these costs compound in ways that catch new operators off guard, and underestimating them is one of the most reliable paths to an NOI figure that collapses on contact with reality.

Property management fees run 25 to 40 percent of rent collected at the typical full-service range. Urban properties land toward the lower end; remote, mountain, and beach locations land toward the higher end, reflecting added logistical complexity. A property earning $100,000 in gross revenue pays $25,000 to $40,000 in management commissions before platform fees are even considered. Self-managed properties can achieve NOI margins of 45 to 55 percent. Fully managed properties typically land in the 30 to 45 percent range. The decision to self-manage or outsource is the single largest lever on expense structure, and most owners make it based on convenience rather than analysis.

OTA and platform commissions run 3 to 15 percent of gross rental income depending on the platform and fee structure. Airbnb's host-only fee sits around 3 percent; Booking.com typically charges 15 percent or more. These stack on top of management fees. In a fully managed property listed across multiple OTAs, it is easy to double-count these or omit them entirely, both of which distort the model in opposite directions.

Utilities are owner-paid in full and run higher than residential norms because of constant guest turnover. Guests don't conserve the way permanent residents do.

Insurance deserves its own line. Standard homeowner policies typically exclude short-term rental activity. Specialized STR coverage is a real and non-negotiable expense, and treating it as optional is a liability rather than a savings.

Other recurring operating expenses include property taxes, landscaping, pest control, marketing and listing costs, legal and professional fees, and routine maintenance and repairs. None of these are surprising. All of them need to be itemized. A single blended "miscellaneous" line is where accuracy goes to die.

The CapEx distinction matters more than most owners acknowledge. A broken HVAC unit being repaired is an operating expense; it belongs in the NOI calculation. A full roof replacement is a capital expenditure; it goes below the NOI line. Mixing the two doesn't just muddy the accounting. It inflates apparent expenses, understates NOI, and raises red flags with any lender or investor who reviews the numbers carefully.

What a Worked NOI Calculation Looks Like on a Real STR Property

I want to be straightforward about what this example is: it's a composite built from real market ranges, not a single property I pulled from a portfolio. Real properties are messier. A guest floods the bathroom in November. A cleaning vendor raises rates mid-year. The shoulder season books better than expected because a film festival runs the same weekend two years running. The numbers below won't match any single property exactly, but they reflect the structural relationships that hold across coastal STR markets with meaningful seasonality.

Consider a property that is professionally managed, listed on multiple OTAs, and priced dynamically.

Step 1: Potential rental income by season.

| Season | Nightly Rate | Available Nights | Potential Revenue | |---|---|---|---| | Summer (Peak) | $450 | 92 | $41,400 | | Spring/Fall (Shoulder) | $275 | 184 | $50,600 | | Winter (Off-Peak) | $175 | 89 | $15,575 | | Annual Total | | 365 | $107,575 |

Step 2: Apply vacancy by season.

| Season | Vacancy Rate | Vacancy Loss | Effective Revenue | |---|---|---|---| | Summer | 20% | ($8,280) | $33,120 | | Spring/Fall | 40% | ($20,240) | $30,360 | | Winter | 55% | ($8,566) | $7,009 | | Annual Total | | ($37,086) | $70,489 |

The winter vacancy figure is the one that usually surprises people. Fifty-five percent unoccupied in a soft season is not pessimistic for a coastal market; it is, in many cases, optimistic. New operators consistently underestimate how dead the off-season actually is.

Step 3: Add ancillary income.

| Income Source | Annual Amount | |---|---| | Cleaning fees passed to guests | $5,200 | | Pet fees | $900 | | Early check-in / late checkout | $750 | | Gross Operating Income | $77,339 |

Step 4: Operating expenses.

| Expense Category | Annual Cost | |---|---| | Property management (30% of gross) | $23,202 | | OTA commissions (est. 8% of gross) | $6,187 | | Cleaning and turnover (12% of gross) | $9,281 | | Utilities | $4,800 | | Insurance (STR-specific policy) | $2,400 | | Property taxes | $5,500 | | Maintenance and repairs | $3,200 | | Total Operating Expenses | $54,570 |

Step 5: NOI.

$77,339 minus $54,570 equals $22,769.

The mortgage payment appears nowhere in this calculation. That's intentional, and it matters: two otherwise identical properties with different acquisition financing would show the same NOI here, because NOI measures the asset, not the deal.

This property lands at an NOI margin of approximately 29 percent, below the 35 to 55 percent range associated with healthy STR performance. The culprit is visible in the expense table: stacked management and OTA commissions consume nearly 38 percent of gross operating income before anything else is counted. A self-managed version of this same property, with direct booking channels reducing OTA exposure, would produce NOI in the $35,000 to $40,000 range. Same asset, different operating structure, materially different result.

Reading the NOI Margin: What the Number Tells You About a Property's Health

Healthy STR NOI margins run 35 to 55 percent of gross revenue. Where any specific property lands depends heavily on management structure and market ADR, not just expense discipline. That range is a diagnostic reference, not a universal standard.

AirROI analysis of more than 44,000 active U.S. listings found that median annual revenue spans roughly $27,500 in a market like Denver to $53,500 in a market like San Diego. At a 45 percent NOI margin, San Diego's median listing produces nearly twice Denver's estimated absolute NOI. That gap is driven by higher ADR, not leaner operations. Markets like San Diego and Gatlinburg generate enough topline revenue that a 45 percent margin yields roughly $22,000 to $24,000 in annual NOI per median listing.

A thin margin signals something specific, and specificity matters here. Management and OTA commissions are consuming too large a share of revenue. Vacancy is running higher than the underwriting assumed. Utilities or cleaning costs are out of line with market norms. Thin margins have causes, and those causes are identifiable when the line-item detail exists. The owners who treat a low NOI margin as a vague disappointment rather than a diagnostic signal are the ones who repeat the same mistake across multiple properties.

A strong margin, however, does not automatically mean a strong property. A 55 percent margin on a low-revenue property produces less absolute NOI than a 40 percent margin on a high-ADR property. Both the percentage and the absolute dollar figure warrant attention. Optimizing exclusively for margin percentage, while ignoring whether the revenue base justifies the investment, is a sophisticated-looking mistake, and I've seen it made by people who should know better.

AirDNA's 2025 benchmarks place a "good" return for a U.S. STR between 4 and 10 percent. That's a return-on-value figure, distinct from the NOI margin, and it connects most directly to property valuation.

How NOI Connects to Cap Rate and Why That Affects What the Property Is Worth

The cap rate formula: NOI divided by property value. NOI is the numerator, which makes it the input owners can directly influence. Cap rate is what you get when you hold value constant against income.

STR cap rate benchmarks vary meaningfully by market type. A high-cost urban vacation market trades at a 2 to 4 percent cap rate, where appreciation rather than cash flow is the investment thesis. Mid-tier markets typically produce cap rates in the 5 to 7 percent range. Stable vacation markets with consistent demand yield 8 to 10 percent. Emerging markets or destinations with strong year-round demand sometimes reach 10 to 12 percent or higher.

The valuation implication runs in both directions. Higher NOI at the same cap rate implies a higher appraised value under the income approach, which is the method lenders and appraisers use for income-producing properties. That expanded value creates refinancing flexibility that an underperforming NOI closes off. When you improve NOI, you're not just improving cash flow; you're improving what the asset is worth to a buyer or lender.

There is a distinction that catches acquisition underwriting off guard regularly. A property can show positive NOI and still produce negative cash flow if debt service is excessive relative to the income profile. NOI tells you the property works as an operating asset. Cash flow tells you whether the specific deal, at the specific financing terms, works for the specific investor. Conflating them leads to acquisitions that look attractive in the pro forma and produce monthly shortfalls in practice. I've seen that movie more than once.

New York City's 19 percent RevPAR increase in 2024, per AirDNA, illustrates this dynamic from an unexpected angle. Local Law 18's enforcement sharply reduced the supply of whole-home short-term rentals in the market. Fewer listings in a market with sustained demand meant the properties that remained legal saw measurable revenue and NOI improvements. Regulatory restriction, counterintuitively, lifted the economics for surviving operators. The lesson isn't that regulation is good; it's that supply dynamics shape NOI in ways that market analysis alone won't surface.

How Regulatory Changes Hit NOI Directly and Where That Risk Is Highest

Regulation affects NOI through two channels: higher compliance costs and reduced operating nights. Both compress the numerator that drives valuation, and both tend to arrive faster than operators expect.

Per Brian Chesky, 80 percent of Airbnb's top 200 markets by revenue already have some form of STR regulation. This is not a fringe risk confined to a handful of high-profile cities. It is the operating environment.

New York City's Local Law 18, enforced beginning in September 2023, effectively eliminated the traditional whole-home short-term rental model in one of the highest-ADR markets in the country. Rentals of fewer than 30 days are only legal with the host present, limited to two guests. The effect on NOI for operators who had underwritten revenue based on prior operating conditions was immediate and severe. There was no gradual phase-in; the income simply stopped.

France's La Loi Le Meur, adopted in late 2024, demonstrates how national-level legislation can layer multiple simultaneous NOI pressures. Municipalities gained authority to reduce the primary residence rental cap from 120 to 90 nights annually. Stricter energy efficiency requirements added compliance costs as a new expense category. Tax allowances on STR income were reduced. Any single one of those changes compresses NOI; all three together do so materially.

The political pressure driving STR regulation has a specific and durable source. The 2024 State of the Short-Term Rental Industry Report found that four in five local government respondents identified affordable housing as an issue in their jurisdiction. That is not a cyclical concern that abates in a favorable economic environment. It is a structural political motivation that makes additional regulation a reasonable baseline assumption in high-demand markets, not a tail risk.

The operational response is explicit modeling. For markets with active regulatory debate, model a reduced-nights scenario and observe what it does to NOI. Include licensing fees and mandated compliance costs as operating expenses, not capital expenditures. In markets where restrictions already exist, verify permitted use before underwriting any revenue assumption. Underwriting on the assumption that current rules persist is not optimism; it is negligence dressed as analysis.

The Highest-Leverage Actions for Improving NOI on an Existing Property

Dynamic pricing is the single highest-leverage revenue tool available to STR operators. A 2025 study by Your.Rentals across 541 listings found an average 36 percent revenue increase for properties using dynamic pricing versus static pricing. Properties employing dynamic pricing models earned 10.7 percent more in RevPAR year over year per AvantStay and StayFi VRM Insider data from 2025. In a 2025 international survey by Beyond Pricing, nearly half of hosts and property managers named pricing optimization as their primary lever for performance improvement.

Static pricing leaves money on the table during peak demand and fails to stimulate occupancy during soft periods. Dynamic pricing tools adjust rates against real-time market signals: local events, competitive positioning, booking window patterns, and seasonal demand curves. The revenue upside flows directly to NOI without adding a single operating night.

Direct booking channel development reduces OTA commission drag. Every percentage point of revenue shifted from high-commission platforms to direct bookings falls to the bottom line. This requires genuine investment: a functioning direct booking website, an email list, a guest communication strategy. But the return is structural, not episodic. Commission savings in the 8 to 15 percent range on redirected revenue compound materially over time, and the capability itself has value that doesn't appear in any single year's NOI calculation.

Management structure remains the largest expense lever. The difference between a fully managed property and a self-managed one is 15 to 25 percentage points of NOI margin. Owners with the capacity and market proximity to self-manage are leaving meaningful income on the table if they default to full-service management without running the numbers. For owners who need full management, the fee structure, performance thresholds, and the boundary between what's included versus billed separately are all negotiable, and most operators never bother to negotiate.

Expense auditing by line item, rather than in aggregate, surfaces recoverable income. Utility bills that have never been reviewed. Insurance policies that haven't been competitively quoted since acquisition. Cleaning contracts priced at initial market rates that no longer reflect the negotiating leverage that comes with higher volume. These are not exotic optimizations; they are straightforward recoveries that require only the willingness to look at the detail rather than the summary.

Ancillary revenue is systematically undercaptured across the industry. Pet fees, upsell packages, early check-in pricing, experience add-ons: these represent income that requires no additional nights and no change to the core product. The Enso Connect data from 2024 to 2025 suggests the gap between owners who capture this revenue and those who don't is material at scale. The owners who aren't capturing it aren't missing some sophisticated strategy; they simply haven't set it up.

NOI improvement reduces to increasing gross operating income, reducing operating expenses, or both. The decisions that produce those improvements are available to any owner willing to do the analysis. The compounding effect of making those decisions consistently, quarter over quarter, is what separates operators who treat the STR as an asset from those who treat it as an obligation they're not quite sure is worth it.