SkillsLib.ai

Rental Property ROI Calculator

Know Your Property's True ROI in Seconds

4.9(8 reviews)
100+ downloads
Updated Oct 2026

What You Can Do

Stop guessing on rental investments. You get precise cash-on-cash returns, cap rates, and IRR calculations that reveal whether a property will make or lose you money. Compare dozens of deals objectively, eliminate emotional decisions, and confidently identify your best investment opportunities before you commit a single dollar.

Features

Cash-on-Cash Return Calculator

See your actual annual return on the cash you invested, accounting for down payments, closing costs, and annual cash flow.

Cap Rate Analysis

Calculate capitalization rates to instantly compare properties across markets and identify which deals offer the best income potential.

IRR (Internal Rate of Return)

Project long-term wealth building with IRR calculations that factor in appreciation, principal paydown, and total cash flow over time.

Multi-Property Comparison

Evaluate multiple deals side-by-side in a single session. See which properties rank highest across all key metrics.

Mortgage Amortization Breakdown

Understand exactly how much of each payment goes to principal vs. interest, and how this impacts your cash flow year over year.

Tax Impact Adjustments

Adjust calculations for depreciation, repairs, and tax deductions to see your after-tax return and plan your tax strategy.

Investment Scenario Modeling

Test different down payment amounts, interest rates, and holding periods to find the exact deal structure that maximizes your return.

Professional Investment Summary

Get a detailed report showing key metrics, decision triggers, and a clear go/no-go recommendation for each property.

Example Output

Property Comparison: Which Deal Wins?

Property A (2-Unit, $350K Purchase)

  • Cash-on-Cash Return: 8.2%
  • Cap Rate: 6.1%
  • 5-Year IRR: 14.3%
  • Monthly Cash Flow: $1,850
  • Initial Investment: $70,000
  • Recommendation: STRONG BUY

Property B (Single Family, $250K)

  • Cash-on-Cash Return: 3.4%
  • Cap Rate: 4.2%
  • 5-Year IRR: 7.8%
  • Monthly Cash Flow: $675
  • Initial Investment: $50,000
  • Recommendation: PASS

The Verdict: Property A delivers 2.1x higher annual returns with better fundamentals. Despite the larger entry cost, you earn significantly more on your invested capital. This is the deal to pursue.

What's Included

  • ROI Metric Framework: Ready-to-use calculation engine for cash-on-cash, cap rate, and IRR that handles all standard rental property scenarios.
  • Multi-Property Comparison Worksheet: Evaluate 5-10 properties side-by-side, rank them by ROI, and instantly identify your best investment opportunity.
  • Financing Scenario Builder: Test different down payments and interest rates to optimize your investment structure and maximize returns.
  • Mortgage Amortization Calculator: Automatic principal/interest splits, tax depreciation schedules, and loan paydown projections built in.
  • Investment Recommendation Engine: Automatic go/no-go decision guidance with clear risk factors and deal-breaker thresholds.
  • Step-by-Step Quick-Start Guide: Video walkthrough and FAQ to run your first analysis and interpret results with confidence.

Who It's For

  • Real estate investors evaluating new deals
  • Portfolio managers optimizing rental property mix
  • Real estate agents advising investment clients
  • First-time landlords building financial confidence
  • Self-directed 1031 exchange planners

Best For

  • Pre-purchase analysis before committing cash
  • Comparing competing properties in hot markets
  • Stress-testing deals under different conditions
  • Building a multi-property portfolio strategy
  • Documenting investment thesis for lenders

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