How to Calculate ROI on Short-Term Rentals in 2026

A fully booked short-term rental can still be a losing investment. Occupancy rate is the metric most hosts watch obsessively, but it's not the metric that tells you whether the property is actually making money. In 2026, with cleaning costs, platform fees, and dynamic pricing all in play, ROI requires a more complete formula.

Why Occupancy Rate Is a Misleading North Star

A property booked 90% of the month at a discounted nightly rate can underperform a property booked 65% of the month at full price, once you account for the extra turnovers, cleaning fees, and wear and tear that come with higher occupancy. Occupancy tells you how full your calendar is, not how profitable each night actually was.

The Real ROI Formula

True short-term rental ROI requires tracking:

Gross booking revenue: nightly rate × nights booked, before any deductions

Platform fees: typically a percentage taken by the booking platform

Cleaning and turnover costs, which scale with the number of bookings, not the number of nights

Utilities, supplies, and maintenance: the recurring operational costs of running the property

Mortgage or opportunity cost: what the capital tied up in the property could otherwise be earning

Net profit per night occupied: the number that actually reflects performance, after every cost above

Annual ROI is then net profit divided by total investment (purchase price, furnishing, and setup costs), the number that tells you whether this property is actually outperforming alternative investments.

Where Hosts Lose Money Without Realizing It

The most common blind spot is treating cleaning and turnover costs as a flat, ignorable line item. As occupancy increases, turnover costs increase with it, sometimes enough to erase the margin gained from the extra bookings. A property optimized purely for occupancy, without checking the turnover-cost tradeoff, can end up less profitable than a property booked less often at a higher rate.

Tracking It Without the Spreadsheet Headache

Calculating true ROI by hand, across multiple properties and seasons, gets unwieldy fast. What's needed is a system that logs bookings, fees, and turnover costs as they happen, then calculates net profit per night and annual ROI automatically, so you can compare properties, seasons, and pricing strategies on equal footing.

This is exactly what the STR Manager template is built to do: track bookings, fees, and operating costs per property, and see real ROI, not just occupancy, at a glance.

The Bottom Line for 2026

If you're only watching occupancy rate, you're watching the wrong number. Track full ROI per property, and you'll know which listings are actually worth your continued investment, and which ones are quietly costing you money.