BRRRR Method Calculator

Calculate your real estate investment returns using the BRRRR method with an accessible calculator that keeps the numbers transparent.

Investment Inputs

How to Use This Calculator

The BRRRR (Buy, Rehab, Rent, Refinance, Repeat) method calculator helps you understand how upfront investments stack up against rental cash flow and refinance proceeds. Enter the purchase price, rehab budget, rental income, and refinance target to see your estimated cash flow and return on investment.

Methodology

All calculations rely on simple cash-flow math. Total cash invested is the sum of acquisition price plus rehab expenses. Annual cash flow multiplies the monthly rent by twelve and deducts an assumed refinance cost set at 4% of the refinance amount to reflect fees and closing costs.

  • ROI is expressed annually: annual cash flow divided by total cash invested, multiplied by 100.
  • Negative cash flow or refinance fees larger than monthly income will produce negative ROI, signaling a revisit of assumptions.
  • Inputs update instantly when you hit Calculate or adjust any field; the calculator prevents invalid values and keeps the display free of NaN/Infinity.

Data Source and Guidance

Algebraic formulas stem from standard real estate investment analysis, and the calculator keeps the assumptions transparent so you can verify every number before sharing it with partners or lenders.

Glossary of Variables

  • Property Price: Purchase price of the investment property.
  • Rehab Cost: Renovation and repair budget required before renting.
  • Rental Income: Monthly rent collected from tenants.
  • Refinance Amount: Cash-out or new loan amount used to pay off the purchase and rehab.

Example Scenario

Buying a property for $150,000 with $30,000 in rehab, renting it for $1,500/month, and refinancing for $160,000 yields the following inputs. Plug in your actual values to assess profitability before expanding your portfolio.

FAQ

What is the BRRRR method?

The BRRRR method is a five-step strategy focused on acquiring, renovating, renting, refinancing, and repeating with the same capital.

How do I calculate ROI?

ROI equals annual cash flow divided by total cash invested, multiplied by 100 to convert to a percentage.

What risks should I watch for?

Watch for higher rehab costs than expected, tenant vacancies, or refinance costs that outpace rental income.

Is BRRRR suitable for every market?

Success depends on market rents, rehab timelines, and lending terms, so re-run the calculator with local data before committing.

What is a good ROI?

While goals vary, a double-digit annual ROI typically signals a strong BRRRR opportunity after accounting for expenses.

Formulas

ROI: ROI = (Annual Cash Flow / Total Cash Invested) × 100

Annual Cash Flow: (Monthly Rental Income × 12) − (Refinance Amount × 0.04)

Total Cash Invested: Property Price + Rehab Cost

Citations

NIST — Weights and Measures: https://www.nist.gov/pml/weights-and-measures (Accessed 2026-01-19)

FTC — Consumer Advice: https://consumer.ftc.gov/ (Accessed 2026-01-19)

Changelog
  • 0.1.0-draft — Initial audit spec draft generated from HTML extraction. Review and refinement pending (2026-01-19).
Verified by Ugo Candido Last Updated: 2026-01-19 Version 0.1.0-draft
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