BRRRR Strategy Calculator

What you get

A single Excel workbook built specifically for the Buy-Rehab-Rent-Refinance-Repeat method, covering deal analysis, renovation budgeting, cash-out refinance modeling, and portfolio tracking in one file. Every mortgage calculation uses PMT-based math, so the monthly cash flow figures reflect what you will actually collect after refinancing — not rough estimates. The workbook also includes a dedicated calculator that tells you, at your current acquisition pace, precisely how many completed BRRRRs it will take to replace your income.

Who it's for

Real-estate investors who are actively running the BRRRR strategy or preparing for their first deal, and who need a single reliable tool to vet acquisitions, keep rehab budgets honest, and track the portfolio-level picture as it grows. It is equally useful for investors who have completed several deals but are still working from spreadsheets that lack a formal all-in versus ARV check or a clear line of sight to financial independence.

What's inside

• Deal Analyzer — models purchase price, rehab cost, and after-repair value against the critical 75% all-in rule, flagging any deal that falls outside the target threshold before you commit capital.
• Cash-Out Refinance Modeler — takes your loan-to-value input and calculates projected refinance proceeds, showing exactly how much capital you recover at the closing table.
• Post-Refi Cash Flow Calculator — computes monthly cash flow after the refinance using PMT-based mortgage math, accounting for principal, interest, and a user-defined rate.
• Rehab Estimator — itemized renovation budget with a built-in 10% contingency buffer, so cost overruns are priced into the deal before you close.
• Portfolio Tracker — aggregates every completed BRRRR in a single summary view, showing total equity captured, combined cash flow across all doors, and total capital recycled.
• Financial Independence Calculator — answers how many deals, at your current pace and average cash flow per door, stand between you and a full income replacement.

How to use it

Download the .xlsx file and open it in Microsoft Excel or Google Sheets. Enter your deal inputs — purchase price, estimated rehab, ARV, refinance LTV, and expected rent — on the Deal Analyzer sheet, then move to the Rehab Estimator to build out a line-item renovation budget. Once a deal is complete, log it in the Portfolio Tracker and revisit the Financial Independence Calculator to see your updated timeline.