BRRRR Calculator
Analyze your Buy, Rehab, Rent, Refinance, Repeat (BRRRR) real estate investment to see how much capital you recover, post-refinance monthly cash flow, and long-term equity.
How to Use This Calculator
- Enter acquisition numbers: Enter your agreed purchase price, initial cash down payment (use 100% for an all-cash deal or toggle to your down payment percentage), and purchase closing costs.
- Input renovation and holding estimates: Type in your planned contractor rehab budget, the expected renovation timeline in months, and your monthly holding expenses (interim loan interest, utilities, property taxes, and insurance).
- Set your refinance terms: Enter the target After Repair Value (ARV), your lender's maximum Loan-to-Value (LTV) limit, the refinance closing costs, interest rate, and amortization term.
- Model rental operations: Add your projected monthly rent, expected vacancy rate, and ongoing monthly operating expenses to instantly see whether you achieve an infinite return.
The Formula
The core objective of the BRRRR method is to recycle upfront capital through forced appreciation. The arithmetic tracks total capital spent against cash returned at refinance:
Example
Consider an investor purchasing an off-market distressed single-family home for $100,000 in cash. Renovation costs total $30,000, purchase closing costs are $3,000, and holding expenses run $500 per month across a 6-month project ($3,000 total holding):
The investor deploys a total out-of-pocket sum of $136,000 ($100k purchase + $3k closing + $30k rehab + $3k holding). Upon completion, the property appraises for an ARV of $190,000. The investor executes a 75% LTV cash-out refinance at 6.5% interest over 30 years with $4,000 in refinance closing fees.
Because the investor pulls out $138,500 on an initial cash investment of $136,000, they recover 100% of their money plus a $2,500 cash buffer. Renting the home for $1,750 per month with 5% vacancy ($87.50) and $450 in monthly operating costs leaves an NOI of $1,212.50. After subtracting the new $900.70 monthly mortgage payment, the investor collects $311.80 in net monthly cash flow ($3,741.60 annually) with an infinite cash-on-cash return and $47,500 in retained equity.
Frequently Asked Questions
About the Calculation & Practical Notes
When you browse social media or real estate podcasts, influencers make the BRRRR method look like an effortless money printing loop: buy a wreck, paint the cabinets, get a massive check from the bank, and do it again next month. But when you look at the math with real holding costs and appraisal haircuts, the margin for error is razor-thin.
When I look at home renovation work around Ranchi or talk to friends doing construction, contractor quotes and raw material prices almost never stay on schedule or on budget. What starts as an estimated two-month paint-and-tile job easily drags out into four or five months, with unexpected plumbing or electrical repairs pushing final costs 15% to 20% over quote. In a BRRRR deal, every extra month of construction delay means another month of mortgage interest, taxes, and utility bills draining your cash before a tenant ever moves in.
From a personal financial perspective, I am very cautious with leverage. Taking on aggressive short-term bridge debt or 12% to 14% hard money loans would cause tremendous stress if a project hits unexpected delays. If I were stepping into a value-add property, I would only feel comfortable using accumulated liquid cash savings for the renovation budget and holding costs rather than relying on expensive private debt with looming repayment deadlines.
I built this tool because commercial investment platforms like BiggerPockets slap users with $390 yearly paywalls just to analyze basic deals, while other tools don't even track holding costs during renovations. Having clean, unconstrained math lets you test what happens if an appraiser comes in 10% below your target before you ever sign an acquisition contract.