Financial Analysis for Short-Term Rental Properties

Revenue Projection Methods

Accurate revenue projections separate profitable STR investments from money-losing ones. The challenge is that STR income varies by season, day of week, and year-to-year market conditions, making projections more complex than long-term rental analysis.

AirDNA is the most widely used data source. It aggregates Airbnb and VRBO booking data to show average daily rates, occupancy rates, and revenue for comparable properties in any market. A "Rentalizer" report ($20-$30) estimates annual revenue for a specific address based on comparable listings. Use AirDNA's 25th percentile estimate (not the average or top quartile) for conservative planning.

PriceLabs Market Dashboard provides similar data with a focus on pricing trends and seasonal patterns. The comp analysis tool lets you select 5-10 comparable listings and see their actual performance over the past 12 months.

Manual comp research. Search Airbnb for similar properties in your area. Check their calendars for booked vs. open dates to estimate occupancy. Note their nightly rates across seasons. This method is time-consuming but gives you ground-level insight into your competitive set.

For any projection method, apply a 15-20% discount to the estimated revenue for your first year. New listings without reviews earn less than established ones, and operational learning curves reduce early-month efficiency.

Building Your Expense Model

STR expenses fall into fixed, variable, and periodic categories.

Fixed monthly expenses:

• Mortgage (PITI): Your principal, interest, taxes, and insurance payment
• HOA fees (if applicable)
• Internet and streaming subscriptions: $80-$150/month
• Property management software: $20-$50/month
• Dynamic pricing tool: $20-$30/month
• STR insurance premium: $100-$300/month

Variable expenses (scale with bookings):

• Cleaning: $100-$175 per turnover, typically 12-20 turnovers/month at moderate occupancy
• Platform fees: 3-15% of gross booking revenue
• Utilities (electric, gas, water, trash): $200-$450/month (higher than LTR because you pay all utilities)
• Supplies and consumables: $100-$200/month (toilet paper, soap, coffee, cleaning products)

Periodic expenses:

• Furniture replacement and wear items: Budget $1,500-$3,000/year
• Deep cleaning (carpets, grout, windows): $300-$600 twice per year
• Maintenance and repairs: Budget 5-10% of annual gross revenue
• Professional photography refresh: $200-$400 annually

Total operating expenses typically run 40-60% of gross revenue for an owned property and 65-80% for an arbitrage property (where rent is your largest fixed cost).

Key Financial Metrics

Gross revenue. Total booking income before any deductions. This is the number AirDNA and similar tools report.

Net operating income (NOI). Gross revenue minus all operating expenses (excluding mortgage principal). This is the true measure of the property's earning power.

Cash-on-cash return. Annual NOI divided by your total cash investment (down payment, closing costs, furnishing, startup expenses). A strong STR cash-on-cash return is 15-25%. Anything below 10% may not justify the additional work compared to a long-term rental.

Break-even occupancy. The occupancy rate at which your revenue exactly covers all expenses. Calculate by dividing total monthly expenses by your average nightly rate. If break-even occupancy is above 65%, the deal has thin margins and limited room for error.

Revenue per available night (RevPAN). Total monthly revenue divided by the number of nights in the month. This single metric captures both rate and occupancy in one number, making it the best month-over-month performance indicator.

Running Conservative Scenarios

Build three scenarios: conservative (25th percentile revenue, high expenses), moderate (50th percentile revenue, average expenses), and optimistic (75th percentile revenue, low expenses). Make your investment decision based on whether the conservative scenario produces acceptable returns. If the deal only works in the optimistic scenario, the risk is too high.

Account for seasonality by modeling each month individually rather than using an annual average. A property that generates $6,000/month in summer and $2,000/month in winter has very different cash flow needs than one averaging $4,000/month consistently.

For a complete guide to starting a short-term rental business, see Starting an Airbnb Business: Complete Guide for Beginners.