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Calculators/Real Estate & Mortgages
Rental Property Calculator
Analyze a rental property's cash flow, cap rate, and cash-on-cash return all in one place.
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Property Analysis
Monthly Mortgage (P&I)$1,573
Effective Rent (after vacancy)$2,024
Net Operating Income$14,573/yr
Monthly Cash Flow$-359
Cap Rate4.86%
Cash-on-Cash Return-5.74%
Monthly Cash Flow
$-359
Cap Rate
4.86%
Cash-on-Cash
-5.74%
How to Use This Calculator
1
Enter the purchase price
The total acquisition cost of the property including purchase price. Add closing costs (~3%) for a more accurate investment basis.
2
Set your down payment
Investment properties typically require 20–25% down. Conventional investor loans require at least 15–25%. The more you put down, the better your cash flow.
3
Enter expected monthly rent
Research comparable rentals on Zillow, Rentometer, or local Facebook groups. In Texas markets, use realistic rates for your specific neighborhood.
4
Set vacancy rate
Most investors use 8–10% (roughly 1 vacant month per year). In tight Texas markets like Austin, 5–7% may be more accurate.
5
Enter expense ratio
Total operating expenses as % of gross rent — includes taxes, insurance, maintenance, property management (8–10%), and reserves. Texas average: 40–45% due to high property taxes.
Real-World Examples
DFW Single-Family Rental
Purchase Price
$280,000
Down Payment
25%
Monthly Rent
$2,100
Expense Ratio
42%
Result+$187/mo cash flow
Cap rate: 5.1%. Cash-on-cash: 3.2%. Not spectacular, but appreciation potential in DFW makes this viable.
Houston Multi-Family Unit
Purchase Price
$185,000
Monthly Rent
$1,650
Down Payment
20%
Vacancy Rate
8%
Result+$312/mo cash flow
Cap rate: 6.4%. Better cash flow due to lower purchase price. Houston's diverse economy keeps vacancy low.
Frequently Asked Questions
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