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Calcimator

BRRRR Calculator

Analyze a Buy-Rehab-Rent-Refinance-Repeat deal. Calculate total investment, refinance cash-out, post-refi mortgage, cash flow, and cash left in the deal.

Inputs

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%
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Results

Cash Left in Deal

$3,200.00

≈ 3 smartphones

Cash Out at Refinance$0.00
Monthly Cash Flow$158.05
Annual Cash Flow$1,896.56
Cash-on-Cash Return59.27%
Total Investment$153,200.00
Forced Appreciation$80,000.00
New Loan Amount$150,000.00
New Monthly Mortgage$997.95
Equity Captured$50,000.00
How to Use This Calculator
  1. Enter Purchase Price and Rehab Cost for the distressed property you plan to buy and renovate.
  2. Set After Repair Value (ARV) — the estimated market value post-renovation — and Holding Period in months.
  3. Enter Refinance LTV % (e.g. 75%) and the new loan's Interest Rate and Term to model the cash-out refinance.
  4. Input expected Monthly Rent, Vacancy Rate %, and Monthly Operating Expenses for the rental phase.
  5. Review Cash Left in Deal — a negative value means you pulled out more than you invested — and Monthly Cash Flow.
  6. Check Cash-on-Cash Return to evaluate ongoing returns relative to remaining capital in the deal.

How the result changes with After Repair Value ($)

After Repair Value ($)Cash Left in Deal
10,000,000-$7,346,800.00
35,000,000-$26,096,800.00
65,000,000-$48,596,800.00
90,000,000-$67,346,800.00

What each input means

Purchase Price ($)
Distressed property purchase price.
Rehab Cost ($)
Total renovation/rehab budget.
After Repair Value ($)
Estimated market value after renovation.
Holding Period (months)
Months from purchase to refinance.
Monthly Holding Cost ($)
Insurance, taxes, utilities, hard money interest during rehab.
Refinance LTV (%)
Loan-to-value on new refinance loan.
Refi Interest Rate (%)
Interest rate on the refinanced mortgage.
Refi Term (years)
Term of the refinanced mortgage.
Monthly Rent ($)
Expected monthly rental income after rehab.
Vacancy Rate (%)
Expected annual vacancy rate.
Monthly Operating Expenses ($)
Taxes, insurance, maintenance, management (excluding mortgage).

What each result means

Cash Left in Deal
Your remaining cash after refinance. Negative = you pulled cash out.
Cash Out at Refinance
Cash received back at refinance closing.
Monthly Cash Flow
Net monthly income after refi mortgage and expenses.
Annual Cash Flow
Net annual rental income.
Cash-on-Cash Return
Annual cash flow / cash left in deal.
Total Investment
Purchase + rehab + holding costs.
Forced Appreciation
ARV minus original purchase price.
New Loan Amount
Refinance loan (ARV * LTV).
New Monthly Mortgage
P&I on the refinanced loan.
Equity Captured
ARV minus new loan balance.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Purchase Price ($) = 120000, Rehab Cost ($) = 30000, After Repair Value ($) = 200000, Holding Period (months) = 4 = 11 input(s) provided
  2. Calculate Cash Left in Deal
    Cash Left in Deal = totalInvestment - refinanceAmount
    3200 = $3,200
  3. Calculate Cash Out at Refinance
    Cash Out at Refinance
    0 = $0
  4. Calculate Monthly Cash Flow
    Monthly Cash Flow = effectiveMonthlyRent - monthlyExpenses - monthlyMortgage
    158.05 = $158.05

Engine last updated . Checked against 1 independently-derived test — how we verify calculators.

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