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Personal Finance/Rental ROI Calculator

Rental ROI Calculator

Calculate cap rate, cash-on-cash return, and annual cash flow for rental property investments.

ROICap rateCash-on-cashAnnual cash flow2026 tax rates
Annual Cash Flow
$-9,114
$-759/month
Cap Rate
3.46%
Cash-on-Cash
-13.02%
Gross Annual Rent$26,400
Vacancy Loss (5%)−$1,320
Effective Gross Income$25,080
Property Tax−$4,200
Insurance−$1,500
Management (8%)−$2,006
Maintenance (1.5%)−$5,250
Total Operating Expenses−$12,956
Net Operating Income (NOI)$12,124
Annual Mortgage−$21,237
💡 1031 Exchange: Defer capital gains tax by reinvesting proceeds into another investment property within 180 days (IRC Section 1031).
Data Source & Legal Disclaimer
Effective: 2026-01-01Last updated: 2 months agoUpdate: Annual
Sources: IRS Publication 527 — Residential Rental Property

Cap rate and cash-on-cash return are simplified estimates. Actual returns depend on market conditions, tax situation, and property-specific factors. This is not investment advice.

About this tool

What is this tool?

Is this rental worth buying? Cap rate, cash flow and ROI in seconds. Free, no signup.

Cap rateCash-on-cashAnnual cash flow2026 tax rates

What Is the Rental ROI?

The Rental ROI is a free browser-based financial calculator that computes rental ROI calculator instantly without requiring any signup, login, or data upload. All calculations run entirely in your browser using JavaScript, meaning your financial information — income, debts, investment amounts — never leaves your device. The tool uses standard financial formulas and current cap rate calculator rates to deliver accurate results comparable to paid financial planning software. It provides detailed breakdowns showing how each component affects the final number, plus visual charts that make complex cash on cash return concepts easy to understand at a glance.

Who Should Use This Calculator?

This calculator serves anyone making financial decisions who needs reliable numbers fast. Home buyers use it to compare loan scenarios and understand total interest costs over time. Investors rely on it for rental ROI calculator projections and portfolio planning. Families use it to budget monthly expenses and plan for major purchases. Real estate investors run cap rate calculator analysis on potential properties before making offers. Students learning personal finance use the transparent breakdowns to understand how cash on cash return actually works. Financial bloggers and educators embed the tool in their lessons for interactive learning.

How to Use the Rental ROI

Fill in the input fields with your financial data — loan amount, interest rate, term length, or investment figures depending on the calculator type. Results update in real time as you type, with no need to click a calculate button. The tool displays a detailed breakdown showing rental ROI calculator components, a payment schedule or growth projection, and visual charts. Adjust any input to see how changes affect the outcome — great for comparing scenarios. All data stays in your browser; nothing is saved or transmitted. You can take a screenshot of results or copy the numbers for your personal records.

Frequently asked

What metrics does the rental ROI calculator produce?

It calculates cap rate (net operating income / property value), monthly cash flow (rent minus mortgage, taxes, insurance, maintenance, and vacancy), cash-on-cash return, and 5-year equity buildup. A cap rate above 8% generally signals a strong investment; below 4% suggests thin margins.

What expense assumptions does it use?

Defaults follow industry standards: 8% vacancy rate, 10% of rent for maintenance, 5% for property management, and 1.25% of home value annually for property tax. You can override any figure. These conservative estimates prevent the common mistake of underestimating costs by 20-30%.

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