SkillsLib.ai

Real Estate ROI Calculator

Automate property investment ROI analysis with scenario modeling and detailed assumptions

3.7(3 reviews)
100+ downloads
Updated Sep 2026

What You Can Do

You can generate comprehensive return-on-investment analyses for any real estate investment in minutes. Claude calculates key metrics like cap rate, cash-on-cash return, and net present value while automatically modeling multiple scenarios (best case, base case, worst case) to stress-test your assumptions. Every calculation includes full documentation of your inputs, so you can audit your thinking, share analysis with partners, and iterate on different investment strategies.

Features

Automated ROI Calculations

Generate all critical metrics (cap rate, cash-on-cash return, IRR, NPV) instantly from property details and financial assumptions

Multi-Scenario Modeling

Compare best-case, base-case, and worst-case scenarios side-by-side to understand risk exposure across different market conditions

Assumption Documentation

Automatically track and organize all inputs (purchase price, financing terms, rent growth, expense inflation) for full transparency and auditability

Cash Flow Projections

Generate month-by-month or year-by-year cash flow forecasts showing rental income, expenses, debt service, and net cash flow

Sensitivity Analysis

See how ROI changes when individual assumptions shift (e.g., rental rates drop 5%, vacancy rises 2%), identifying your most critical assumptions

Tax Impact Assessment

Calculate depreciation schedules, taxable income, and after-tax cash flow to understand true profitability

Investment Comparison

Evaluate multiple properties side-by-side using consistent methodology to identify the best risk-adjusted opportunity

Export-Ready Analysis

Generate structured reports in markdown or CSV that you can share with lenders, partners, and financial advisors

Example Output

Property Analysis Report: 4-Unit Apartment Building, Denver CO

MetricValue
Purchase Price$425,000
Cap Rate7.2%
Cash-on-Cash Return (Year 1)12.5%
IRR (10-year hold)14.8%
NPV @ 8% discount rate$98,400

Cash Flow Summary (Year 1)

  • Gross Rental Income: $48,600
  • Operating Expenses: $14,580
  • Debt Service: $18,200
  • Net Cash Flow: $15,820

Scenario Comparison

ScenarioCap RateCash-on-CashIRR
Best Case (5% vacancy)7.8%14.2%16.5%
Base Case (8% vacancy)7.2%12.5%14.8%
Worst Case (12% vacancy)6.4%9.8%12.1%

What's Included

  • ROI Analysis Engine: Complete calculation framework for cap rate, cash-on-cash return, IRR, NPV, and other real estate metrics
  • Scenario Templates: Pre-built templates for best-case, base-case, and worst-case scenarios so you don't start from scratch
  • Assumption Tracker: Organized documentation of every input (purchase terms, financing, income assumptions, expense categories) used in your analysis
  • Cash Flow Projection Module: Automatic generation of monthly or annual cash flow forecasts including rental income, operating costs, debt service, and taxes
  • Sensitivity Analysis Tool: Identify which assumptions have the biggest impact on your returns, so you can focus due diligence on the drivers that matter most
  • Export Templates: Formatted reports ready to share with lenders, partners, or investors, or import into spreadsheets for further customization

Who It's For

  • Real Estate Investors
  • Property Investment Managers
  • Commercial Real Estate Brokers
  • Financial Advisors and Wealth Managers
  • Property Developers and Builders

Best For

  • Rental Property Analysis and Due Diligence
  • Fix-and-Flip Investment Evaluation
  • Commercial Real Estate Assessment
  • Investment Opportunity Comparison
  • Long-term Hold vs. Exit Strategy Analysis

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