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Rental Property ROI Calculator
PRO
⚡ INTERACTIVE WEB APP
Know if a rental property cash-flows BEFORE you make an offer
🏠
Loading your property analysis...
Enter property details to see cash flow
Monthly Cash Flow
💰
Monthly Cash Flow
After all expenses
📊
Cap Rate
NOI ÷ Property Value
📈
Cash-on-Cash
Annual return on cash invested
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Annual NOI
Net operating income
🎯 The Verdict
Enter property numbers below.
🏠 Property Details
Purchase price, financing, rental income
📋 Monthly Expenses
All costs that eat into your rental income
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What this means in plain English

Enter your rental property details above — purchase price, rent, vacancy, and expenses — to see your cash flow, cap rate, and cash-on-cash return.

🎯

What you should do next

  • Fill in your property numbers to get specific next steps for evaluating or improving your rental investment.

Track your rental property performance over time with Pro

Pro lets you save multiple properties and compare them — see which one has the best return, track how rent increases improve your yield, and model refinancing scenarios.

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Cash Flow Waterfall
From gross rent to your pocket — every expense
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Vacancy & Rent Scenarios
How vacancy and rent changes affect your returns
📈
10-Year Projection
Equity buildup, appreciation, and total return
Income vs Expenses
Expense Breakdown
Cash Flow by Vacancy Rate
10-Year Equity Growth

Rental Property Analysis

Vault & Vessel Studio ·

📖
How To Use
Know if a rental property makes money before you buy
🚀 Getting Started
1
Enter Property Details
Purchase price, down payment, mortgage rate, and monthly rent from the listing or your research.
2
Add All Expenses
Property tax, insurance, maintenance reserve, management fees. Be realistic — underestimating kills returns.
3
See Cash Flow & ROI
Monthly cash flow, cap rate, and cash-on-cash return. Positive cash flow = money in your pocket every month.
4
Run Scenarios
What if vacancy hits 10%? What if rent drops? Stress-test the deal before committing capital.
📊 Terms Made Simple
Cash Flow: Rent collected minus ALL expenses (mortgage, taxes, insurance, maintenance, vacancy, management). Positive = money in your pocket. Negative = you're paying to own this property.
Cap Rate: Net Operating Income ÷ Property Value. Ignores financing — tells you how productive the property is as an asset. 5-10% is typical. Higher = better return, often higher risk.
Cash-on-Cash Return: Annual cash flow ÷ total cash you invested (down payment + closing costs). This is YOUR return on YOUR money. 8-12% is strong for rentals.
NOI (Net Operating Income): Annual rental income minus operating expenses — but NOT including mortgage payments. Lenders and investors use NOI to evaluate property value independently of financing.
🔒 Your Data, Your Device
No subscription · Runs in your browser · Private local file
No data uploaded anywhere · Works 100% offline — no internet needed
⚠️ This is a directional estimate, not investment advice. Actual returns depend on market conditions, property condition, tenant quality, and many other factors. Always do your own due diligence.
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Vault & Vessel Studio
⚡ INTERACTIVE WEB APP
Does This Property Actually Cash-Flow?
$347
Monthly Cash Flow
$285K property · $2,200 rent · 6.8% cap rate
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6.8%
Cap Rate
📈
6.5%
Cash-on-Cash
💰
$19K
Annual NOI
🎰
Gut Feeling
???
"Looks like a good deal"
📊
Full ROI Analysis
$347/mo
Every expense calculated
Income vs Expenses
Rent
$2,090
Mortgage
$1,517
Other
$576
Expense Breakdown
Mortgage
$1,517
Tax
$280
Maint
$176
Ins
$120
Rental Property ROI Calculator
Vault & Vessel Studio © 2026
🏠
Vault & Vessel Studio
⚡ INTERACTIVE WEB APP
7 Interactive Views
Every angle of your rental property analysis
📊
ROI Dashboard
Cash flow + cap rate + CoC return
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Cash Flow Waterfall
Rent → expenses → your pocket
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Vacancy Scenarios
Stress-test at 0-20% vacancy
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10-Year Projection
Equity growth + total return
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4 Interactive Charts
Income, expenses, scenarios, equity
🖨️
Print Report
Export your property analysis
📖
How To Use Guide
Cap rate · Cash-on-cash · NOI · 1% rule · Vacancy rates explained
Rental Property ROI Calculator
Vault & Vessel Studio © 2026
🏠
Vault & Vessel Studio
⚡ INTERACTIVE WEB APP
How It Works
Download → Open → Enter the numbers → See if it cash-flows
1
Enter Property Details
Price, down payment, rate, rent
2
Add All Expenses
Tax, insurance, maintenance, vacancy
3
See Cash Flow
Positive = profit, negative = walk away
4
Stress-Test It
Vacancy scenarios + 10yr projection
🔒
100% Private
No subscription · No account
Data stays on your device
Works 100% offline — no internet needed
🏠
The 1% Rule
Monthly rent should be ≥1%
of purchase price to cash-flow
$285K property → $2,850/mo target
Rental Property ROI Calculator
Vault & Vessel Studio © 2026
🏠
Vault & Vessel Studio
⚡ INTERACTIVE WEB APP
What's Included
One HTML file. Everything below. No subscription.
🏠
ROI Dashboard
CORE
💰
Cash Flow Waterfall
FLOW
🔧
Vacancy Scenario Engine
STRESS
📈
10-Year Equity Projection
PROJ
📊
4 Interactive Charts
CHARTS
🔒
Save & Resume · 100% Offline
SAFE
Rental Property ROI Calculator
Vault & Vessel Studio © 2026
🏠 RENTAL PROPERTY ROI
Know If It Cash-Flows
Before You Buy
Monthly cash flow, cap rate, cash-on-cash return, vacancy stress tests, and 10-year equity projection. All in 30 seconds.
Analyze This Property →
⚡ Instant download
🔒 100% private
💻 Works offline
📊 7 views
Vault & Vessel Studio © 2026
This $285K Rental Makes $347/mo After Every Expense
Most investors guess. This calculator shows you the real numbers in 30 seconds.
🎰
Gut Feeling
???
"Seems like a deal"
📊 FULL ANALYSIS
🏠
Calculated
$347
/month cash flow
6.8% CAP RATE · 6.5% CASH-ON-CASH RETURN
$4,164/yr PROFIT
Instant Download
🔒 100% Private
📊 7 Views
Analyze This Property →
Vault & Vessel Studio · Interactive Web App
🏠 RENTAL MATH
$2,200 Rent Looks Great Until You Subtract $1,853 In Costs
Every landlord expense from mortgage to vacancy — accounted for before you sign
💰
Monthly Rent
Gross rental income
$2,200
🏦
Mortgage + Expenses
P&I + tax + insurance + maintenance + vacancy
-$1,853
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Cap Rate
Net operating income ÷ property value
6.8%
$347/mo
Net Cash Flow
Run My Numbers →
Vault & Vessel Studio · Interactive Web App

This tool is for informational and educational purposes only. It does not constitute financial advice. Consult a qualified financial advisor for personalized guidance.