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Rental property deal calculator
A screening tool for rental property. Enter acquisition, financing, income and operating expenses. Every assumption is editable and every formula is shown.
Underwriting
Monthly cash flow
$67
$802 a year after debt service, at 5% vacancy.
Thin margin, near break-even. Small changes to rent, rate, or expenses flip this deal.
- Cap rate
- 6.6%
- Cash-on-cash
- 1.1%
- Mortgage (P&I) / mo
- $1,703
- Cash invested
- $73,600
- Expense ratio
- 26.9%
- 1% rule
- Not met
Show the formulas
P&I = amortize(loan, rate, term)
NOI = (rent × (1 − vacancy) − expenses) × 12
cap rate = NOI ÷ price
cash-on-cash = annual cash flow ÷ (down payment + closing)
1% rule = monthly rent ≥ 1% of price
A screening tool, not investment advice. The 1% rule and cap-rate thresholds are rules of thumb, not a pass/fail verdict. Verify every assumption before you buy.
Read the result honestly
A screening tool, not a verdict.
The 1% rule and cap-rate thresholds are rules of thumb for a first pass, not a verdict. They ignore appreciation, taxes, financing, and your local market. Verify every assumption before you buy.
Investor Toolkit · Coming soon
Underwriting spreadsheets, rent comps, and a deal checklist.
A separate toolkit for buying rental property well, not the Direct-Booking Kit. Join the waitlist and we'll email you at launch.
After you buy
Plan the operating side of direct bookings.
A separate product for the operating side, not this underwriting screen.
One-time purchase, no subscription.