Buy · Rehab · Rent · Refinance · Repeat

BRRRR Calculator

Model the complete project, then test the refinance against both value and DSCR. RentCast can provide rent and current-value references; you must independently support the stabilized value.

1. Property and RentCast reference

The rent estimate may be used in the rental analysis. The AVM is current/as-is only and is never inserted as stabilized value or ARV.

Property addressProperty type

2. Acquisition and renovation

Purchase price$Purchase closing costs$Rehab budget$Rehab contingency%Other holding costsUtilities, property tax, insurance, permits, lawn care, and other non-loan carrying costs.$Stabilized valueYour supported after-rehab value. RentCast AVM is not used here.$

3. Bridge financing

Initial bridge loanTotal initial loan proceeds, including funded rehab if applicable.$Bridge interest rate%Bridge term usedmonthsRequired seasoningCommon refinance seasoning period to compare against your expected timeline.monthsAverage balance outstandingUse 100% if the full loan accrues interest from closing. Lower it when rehab funds are drawn over time.%Bridge points%

4. Stabilized refinance

Maximum refinance LTV%Refinance closing costs$Refinance interest rate%AmortizationyearsPayment typeTarget DSCR×

5. Stabilized rent and expenses

Lease / supported rent$/moRentCast estimate$/moRent used for DSCRAnnual property taxes$Annual insurance$Monthly HOA$Other monthly housing cost$Vacancy reserve%Management%Maintenance / CapEx%

How the model works

Total basis includes purchase, acquisition costs, rehab, contingency, holding costs, bridge points, and modeled bridge interest. Bridge interest uses the average outstanding balance you enter.

Supported refinance is the lower of the loan supported by stabilized value/LTV and the loan supported by target DSCR. Cash left in the deal equals total basis plus refinance costs minus the supported refinance loan.

BRRRR result

Refinance works, but cash flow is negative

$49,522 left in deal

Total project basis

$276,163

Equity created

$43,838

Supported refinance

$232,641

Post-refi DSCR

1.20×

Monthly cash flow

-$35

Equity after refi

$87,359

Project basis

Rehab contingency$5,500

Bridge points$4,000

Modeled bridge interest$14,663

Cash invested before refi$76,163

Refinance constraints

Maximum by LTV$240,000

Maximum by target DSCR$232,641

Supported refinance$232,641

Payoff/refi-cost shortfall$0

Seasoning gapEligible by timing

Capital and returns

Bridge payoff$200,000

Cash recovered after refi costs$26,641

Capital recycled35.0%

Cash left in deal$49,522

Annual NOI$19,584

Cap rate on stabilized value6.1%

Cash-on-cash return-0.8%

Deal score

Borderline BRRRR. Improve value, rent, basis, or terms.

64/100

What works

Stabilized value is above modeled project basis.
Supported refinance covers the bridge payoff and refinance costs.
Expected refinance timing satisfies the entered seasoning period.

Watch items

Post-refi DSCR is below the selected 1.20x target.
Some capital remains trapped in the deal after refinance.

Make this deal work

These are the practical levers: lower basis, higher supported value, stronger rent, better refi terms, or more time.

Gap to recycle capital

$49,522

Reduce basis, increase supported refinance proceeds, or accept this much capital remaining in the deal.

Value needed by LTV

$376,217

Approximate stabilized value needed for the selected LTV to recycle modeled basis and refinance costs, before DSCR limits.

Rent needed by DSCR

$3,026

Approximate monthly rent needed for DSCR to support a refinance large enough to recycle modeled basis and refi costs.

Stress test

Base case

Your current acquisition, rehab, rent, value, and refinance assumptions.

$49,522

DSCR: 1.20×Cash flow: -$35/mo

Conservative case

5% lower rent/value, 10% rehab overrun, 0.50% higher refinance rate, and 3 extra months.

$89,000

DSCR: 1.20×Cash flow: -$33/mo

Defensive case

10% lower rent/value, 20% rehab overrun, 1.00% higher refinance rate, and 6 extra months.

$126,079

DSCR: 1.20×Cash flow: -$31/mo

Educational estimate only. This is not an appraisal, credit decision, investment recommendation, or commitment to lend. Verify the construction budget, draw schedule, lease, stabilized value, seasoning, refinance eligibility, and all lender terms.

Review cash-flow risk