FeaturesCalculatorsPricingBlogAboutSupportSign UpLogin

Short-Term Rental Math: Occupancy, ADR and RevPAR

Short-term rental income depends on nightly rate, occupancy and a different set of costs. Here's how STR revenue and expenses are calculated, with a full example.

October 21, 20264 min readCrunchly Team

Short-term rentals — properties booked by the night through platforms or direct bookings — follow a different set of numbers than traditional leases. Instead of one monthly rent, revenue depends on nightly rates, how many nights are booked, and how often guests turn over. Expenses look different too: cleaning, platform fees, furnishings, utilities and supplies are all on the owner.

This guide walks through the key metrics and a full annual example.

The three revenue metrics

Average daily rate (ADR) is the average price per booked night:

ADR = Room revenue ÷ Nights booked

Occupancy rate is the share of available nights that are booked:

Occupancy = Nights booked ÷ Nights available

RevPAR (revenue per available night) combines the two:

RevPAR = ADR × Occupancy

RevPAR is useful because ADR and occupancy pull against each other. Raising nightly rates can lower occupancy; lowering them can fill more nights. RevPAR shows whether the combination produces more or less revenue per night on the calendar.

Revenue beyond the nightly rate

Many short-term rentals also collect a cleaning fee per stay. Because it’s charged per booking rather than per night, it depends on the average length of stay: shorter stays mean more bookings, more cleaning fees, and also more cleaning costs.

Occupancy taxes collected from guests are usually passed through to the taxing authority, so they’re typically excluded from both revenue and expenses in the owner’s analysis.

Expenses that are different from long-term rentals

A full annual example

Example deal

A short-term rental at $265 ADR and 66% occupancy

Average stay is 3.5 nights, with a $95 cleaning fee per stay. The property is financed with a $320,000 loan at 7% for 30 years.

Revenue Annual
Nights booked (66% × 365) 241 nights
Room revenue ($265 × nights) $63,838
Cleaning fees (69 stays × $95) $6,539
Gross revenue $70,377
Expenses Annual
Platform fees (3%) $2,111
Cleaning cost ($110/stay) $7,571
Management (20%) $14,075
Supplies ($18/stay) $1,239
Utilities $4,080
Internet & subscriptions $1,440
Property taxes $4,800
Insurance $2,400
Maintenance (5%) $3,519
Furnishing & CapEx reserve (4%) $2,815
Total expenses $44,051
Net operating income $26,326
Mortgage P&I −$25,548
Annual cash flow $779

Hypothetical numbers for illustration. Occupancy taxes are treated as pass-through.

RevPAR for this property is $174.90. Expenses consume about 63% of gross revenue — noticeably higher than a typical long-term rental, which is common for short-term rentals given cleaning, management and utilities.

Occupancy sensitivity

Short-term rental revenue swings with occupancy, while many costs (taxes, insurance, utilities, the mortgage) don’t. If occupancy in the example dropped from 66% to 56%, revenue would fall to about $59,714. Per-stay and percentage costs would shrink with it, but fixed costs wouldn’t, and annual cash flow would move from $779 to about −$5,137.

That’s a ten-point change in occupancy turning positive cash flow negative — a pattern that makes stress-testing occupancy especially important for this property type.

Seasonality

Annual occupancy hides month-to-month variation. A mountain or beach property might be close to fully booked in peak season and mostly empty in the off-season, with ADR rising and falling alongside. Monthly cash flow can be negative for several months even when the annual total is positive, which affects how much cash an owner needs on hand.

Where the inputs come from

Comparing to a long-term rental

The same property can often be modeled both ways. A short-term rental may show higher gross revenue but also higher expenses, more variability and more owner involvement. A long-term lease produces lower but steadier income with fewer operating costs. Running both — with honest assumptions about occupancy and costs — shows the trade-off for a specific property.

Startup costs belong in the return math

A short-term rental usually needs more cash up front than a long-term rental: furniture, linens, kitchenware, decor, smart locks, photography and sometimes permits. Those costs don’t appear in annual NOI, but they do belong in total cash invested when calculating cash-on-cash return. Leaving out a furnishing budget can make the return on cash look considerably higher than it is.

The furnishing and CapEx reserve in the example covers the gradual replacement of those items — sheets, towels, mattresses and small appliances wear out much faster under constant guest turnover than in a traditional lease.

The takeaway

Short-term rental math starts with ADR, occupancy and RevPAR, adds per-stay cleaning fees, and subtracts a heavier set of expenses than a traditional rental: platform fees, cleaning, management, utilities and furnishings. Because many costs are fixed while revenue moves with occupancy, testing a lower-occupancy scenario is one of the most informative steps in the analysis.

Try the numbers

Try the Short-Term Rental calculator

Model nightly rate, occupancy, platform fees and cleaning costs.

Open Short-Term Rental →

Educational only. Not financial, investment or tax advice. Crunchly articles explain how real estate calculations work. Examples use hypothetical numbers, and your results depend on the inputs you use. Consult qualified professionals before making any investment, financing or tax decision.