Purpose and steps
The Short-Term Rental Profit Margin Calculator validates every input, normalizes monthly and annual amounts, and calculates booked nights, stays, platform fees, cleaning costs, NOI, and cash flow from one consistent scenario.
- Confirm currency and monthly versus annual amounts. U.S. tax and loan models should be used within their stated scope.
- Prepare Property purchase price, Down payment, Monthly mortgage payment, Average daily rate, Occupancy rate, Average stay length, Platform service fee, Cleaning cost per stay, Other annual operating expenses. Defaults demonstrate the model rather than your personal circumstances.
- Check the headline result and its components. A key interpretation for this tool is: NOI margin excludes financing; cash-flow margin includes the full entered mortgage payment.
- Compare the baseline with a changed scenario: Shorter stays increase cleaning costs even when occupied nights and room revenue are unchanged.
Input reference and units
These values reproduce the model’s demonstration. Replace them with your own records or measurements; they are not recommended targets.
On a small screen, swipe the table horizontally to see all columns.
| Parameter | Demonstration value | How to enter it |
|---|---|---|
| Property purchase price | 350000 USD | Use dollars and the monthly or annual period stated in the field label; do not enter thousands of dollars. |
| Down payment | 20 % | Check the unit carefully: some tools use a percentage and others a cash amount. |
| Monthly mortgage payment | 1800 USD | Use dollars and the monthly or annual period stated in the field label; do not enter thousands of dollars. |
| Average daily rate | 250 USD | Use dollars and the monthly or annual period stated in the field label; do not enter thousands of dollars. |
| Occupancy rate | 70 % | Enter a percentage such as 6.5, not 0.065. The equation converts it to a decimal. |
| Average stay length | 3 nights | Use the definition shown in the field label; keep this assumption consistent when comparing scenarios. |
| Platform service fee | 14 % | Enter a percentage such as 6.5, not 0.065. The equation converts it to a decimal. |
| Cleaning cost per stay | 100 USD | Use dollars and the monthly or annual period stated in the field label; do not enter thousands of dollars. |
| Other annual operating expenses | 6000 USD | Use dollars and the monthly or annual period stated in the field label; do not enter thousands of dollars. |
Model-specific method
How this calculator produces its result
Booked nights N = 365 × occupancy; stays = N / average stay length. Revenue R = N × nightly rate. NOI = R − platform rate × R − stays × cleaning cost − other annual expenses. Cash flow = NOI − 12 × monthly mortgage; each margin divides its profit measure by R.
A cash-flow waterfall and scenario sensitivity
Income and costs form successive layers. Subtracting financing before computing NOI changes the definition and distorts cap-rate comparisons. Principal repayment uses cash but can also build equity, so a tax profit, operating profit and cash-flow result may legitimately differ.
Sensitivity analysis changes one assumption while keeping the others fixed. If yearly potential rent is G, a one-percentage-point vacancy increase directly reduces collected rent by G×0.01, before variable expense offsets. Combined stress scenarios are also important: vacancy, maintenance and borrowing costs can worsen together.
Effective income = potential income × (1 − vacancy) NOI = effective income − operating expenses Cash flow = NOI − debt service DSCR = NOI / debt service
- Potential income: before vacancy or collection loss
- NOI: net operating income before financing
- Debt service: contractual principal and interest payments
- Cash flow: money remaining after the modeled payments
Worked example
At $200 a night, 60% occupancy and three nights per stay, there are 219 nights and 73 stays. Revenue is $43,800. A 3% platform fee, $80 cleaning per stay and $10,000 other costs leave $26,646 NOI; $1,500 monthly mortgage leaves $8,646 cash flow.
Reproduce the default scenario
This is a separate example, calculated using the exact engine on the tool page and the defaults in the input reference above. Health examples use metric units. Displayed rounding may differ from intermediate precision.
- Estimated annual cash flow
- 18,815.83 USD
- Booked nights
- 255.5
- Estimated stays
- 85.17
- Gross booking revenue
- 63,875 USD
- Platform fees
- 8,942.5 USD
- Cleaning costs
- 8,516.67 USD
- Net operating income
- 40,415.83 USD
- NOI margin
- 63.27%
- Cash-flow margin
- 29.46%
- Cash-on-cash return
- 26.88%
Reading results without overstating them
- NOI margin excludes financing; cash-flow margin includes the full entered mortgage payment.
- Shorter stays increase cleaning costs even when occupied nights and room revenue are unchanged.
Assumptions and exclusions
- Assumes uniform annual occupancy and no cleaning-fee revenue. Seasonal prices, lodging tax, licensing, repairs and initial closing costs require separate budgeting.
Sources and content notes
Toolify describes the implemented algorithm and its assumptions. Sources below support the topic or applicable rules; they do not endorse this calculator. Examples are illustrative, and published rules take precedence over simplified estimates.
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