Short-Term Rental (STR) Calculator Guide
The Short-Term Rental calculator helps you analyze Airbnb, VRBO, and vacation rental investments. STR investing offers higher revenue potential but requires more active management than traditional rentals.
What is STR Investing?
Short-term rentals are furnished properties rented for days or weeks rather than months. This strategy features:
- Higher revenue potential - Often 2-3x traditional rent
- Active management - Guest communication, turnover, cleaning
- Seasonal fluctuations - Income varies throughout the year
- Regulatory complexity - Local laws and permits required
- Higher operating costs - Furnishing, supplies, cleaning, platform fees
Key Input Fields
Property & Purchase
| Field | Description | Tips |
|---|---|---|
| Purchase Price | Property acquisition cost | Include closing costs |
| Down Payment % | Cash investment | 20-25% typical |
| Interest Rate | Mortgage rate | Investor rates may be higher |
| Loan Term | Mortgage length | 30 years standard |
| Closing Costs | Transaction fees | 2-4% of price |
| Furnishing Costs | Furniture, decor, supplies | $10-25K for a house |
Revenue (Simple Mode)
Quick estimation for consistent markets:
| Field | Description | How to Estimate |
|---|---|---|
| Average Nightly Rate | Your expected ADR | AirDNA, Mashvisor, or local comps |
| Occupancy % | Nights booked per month | 50-70% realistic for most markets |
Revenue (Seasonal Mode)
For markets with significant seasonality:
| Season | Typical Duration | Settings |
|---|---|---|
| Peak | Summer/holidays | Higher rates, higher occupancy |
| Shoulder | Spring/fall | Moderate rates, moderate occupancy |
| Off-Peak | Winter (varies) | Lower rates, lower occupancy |
Set months and rates for each season.
Cleaning & Supplies
| Field | Description | Guidelines |
|---|---|---|
| Guest Cleaning Fee | What you charge guests | $100-200 typical |
| Actual Cleaning Cost | What you pay cleaner | Usually less than guest fee |
| Per-Turnover Supplies | Toiletries, coffee, etc. | $15-30 per stay |
Operating Expenses
| Field | Description | Typical Range |
|---|---|---|
| Property Taxes | Annual tax | Check county records |
| Insurance | STR-specific policy | Higher than traditional |
| Utilities | Electric, gas, water, internet | $200-400/month |
| Maintenance Reserve % | Repairs fund | 5-10% of revenue |
Platform & Management Fees
Quick-select presets:
| Platform | Fee Structure | Total Fee |
|---|---|---|
| Airbnb Split | Guest pays service fee | ~3% host fee |
| Airbnb Host-Only | Host pays all fees | ~15% |
| VRBO | Host pays | ~8% |
| Direct Booking | Your website | 0% (plus payment processing) |
Taxes & Licensing
| Field | Description | Notes |
|---|---|---|
| Occupancy Tax % | Lodging/hotel tax | Required in most cities |
| Annual Licensing | Permits, business license | Check local requirements |
Understanding Results
Revenue Metrics
| Metric | Formula | What It Means |
|---|---|---|
| ADR | Revenue ÷ Nights Booked | Average Daily Rate |
| RevPAR | Revenue ÷ Available Nights | Revenue Per Available Room |
| Occupancy % | Nights Booked ÷ Available | Booking rate |
| Gross Revenue | Nightly × Nights + Cleaning | Total before expenses |
Revenue Breakdown
- Nightly Revenue: Rate × Occupied nights
- Cleaning Fees: Guest fees collected
- Gross Revenue: Total revenue
- Platform Fees: Airbnb/VRBO cut
- Net Revenue: After platform fees
Expense Categories
- Mortgage (PITI): Principal, interest, taxes, insurance
- Utilities: Monthly utility costs
- Cleaning Costs: What you pay (not what guests pay)
- Supplies: Per-turnover costs × turnovers
- Maintenance: Reserve based on % of revenue
- Management: If using a property manager
- Taxes/Licensing: Occupancy tax + permit fees
Cash Flow Analysis
- Monthly Cash Flow: Net Revenue - All Expenses
- Annual Cash Flow: Monthly × 12
- Break-Even Occupancy: Minimum occupancy to cover costs
Return Metrics
| Metric | Formula | Target |
|---|---|---|
| Cash-on-Cash | Annual Flow ÷ Total Investment | 10%+ |
| Cap Rate | NOI ÷ Purchase Price | 6%+ |
Break-Even Occupancy
This critical metric shows the minimum occupancy needed to cover costs:
Break-Even = Fixed Costs ÷ (Nightly Rate - Variable Costs per Night)
What it tells you:
- Below break-even = Losing money
- At break-even = Covering costs only
- Above break-even = Profitable
Healthy targets:
- Break-even under 40% = Strong safety margin
- Break-even 40-55% = Acceptable
- Break-even over 55% = Risky (little room for slow seasons)
Seasonal Revenue Modeling
STR income varies dramatically by season. Use seasonal mode for accurate projections:
Example: Beach Property
| Season | Months | Nightly Rate | Occupancy |
|---|---|---|---|
| Peak | Jun-Aug (3) | $350 | 85% |
| Shoulder | Apr-May, Sep-Oct (4) | $225 | 60% |
| Off-Peak | Nov-Mar (5) | $150 | 35% |
Weighted Average:
- Annual Revenue: ~$65,000
- Effective ADR: $215
- Effective Occupancy: 56%
Using simple mode with $215/56% would be misleading—you'd miss the seasonality impact on cash flow.
Platform Fee Strategies
Airbnb Split-Fee (3% host)
- Guest pays ~14% service fee
- Your listing shows lower price
- Better for price-sensitive guests
Airbnb Host-Only (15%)
- You pay all fees
- Guests see total price
- Better for professional hosts, direct booking parity
VRBO (8%)
- Simpler fee structure
- Different guest demographic
- Good for families, longer stays
Direct Booking (0%)
- Build your own website/booking system
- Keep all revenue
- Requires marketing, trust-building
- Best for repeat guests and referrals
Deal Quality Assessment
🟢 Great STR
- Cash-on-Cash ≥ 15%
- Break-even occupancy ≤ 40%
- Strong seasonal demand
🟡 Good STR
- Cash-on-Cash 10-15%
- Break-even occupancy 40-50%
- Solid fundamentals
🟠 Marginal STR
- Cash-on-Cash 5-10%
- Break-even occupancy 50-60%
- Thin margins
🔴 Pass
- Negative cash flow at realistic occupancy
- Break-even above 65%
- Regulatory uncertainty
Example Analysis
Property: 2BR cabin near national park
| Input | Value |
|---|---|
| Purchase Price | $350,000 |
| Down Payment | 25% ($87,500) |
| Furnishing | $18,000 |
| Seasonal Rates | Peak $275, Shoulder $175, Off $125 |
| Seasonal Occupancy | Peak 80%, Shoulder 55%, Off 30% |
| Cleaning Fee | $125 (cost: $85) |
Revenue Calculation:
- Peak (3 mo): 27 nights × $275 × 3 = $22,275
- Shoulder (4 mo): 17 nights × $175 × 4 = $11,900
- Off-Peak (5 mo): 9 nights × $125 × 5 = $5,625
- Cleaning Fees: 53 stays × $125 = $6,625
- Gross Revenue: $46,425/year
Expenses:
- Mortgage (PITI): $2,100/mo = $25,200
- Utilities: $250/mo = $3,000
- Cleaning (actual): 53 × $85 = $4,505
- Platform Fees (15%): $6,964
- Other expenses: $3,500
- Total Expenses: $43,169
Results:
- Annual Cash Flow: $3,256
- Total Investment: $87,500 + $18,000 = $105,500
- Cash-on-Cash: 3.1%
- Break-Even Occupancy: 52%
Assessment: Marginal deal. Consider higher rates or lower purchase price.
STR Regulations
Before buying, research:
- Zoning: Is STR allowed in the area?
- Permits: Business license, STR permit required?
- Taxes: Occupancy tax collection and remittance
- HOA: Many HOAs prohibit STR
- Insurance: Standard policies don't cover STR
Tips for STR Success
- Research the market - Use AirDNA or Mashvisor for data
- Stand out - Unique amenities, great photos, 5-star service
- Automate - Smart locks, automated messaging, dynamic pricing
- Build reviews - Guest experience drives bookings
- Diversify platforms - Don't rely on one channel
- Know your numbers - Track monthly P&L, adjust strategies
STR vs Long-Term Rental
| Factor | STR | Long-Term Rental |
|---|---|---|
| Revenue | Higher (2-3x) | Stable, predictable |
| Management | Active (daily) | Passive (monthly) |
| Vacancy | Variable | Predictable |
| Furnishing | Required ($10-25K) | Minimal |
| Regulations | Complex, changing | Simpler |
| Wear & tear | Higher | Lower |
Related Guides
- Turnkey Rental - Lower management alternative
- Glossary - ADR, RevPAR, occupancy explained
- Portfolio Tracking - Monitor STR performance