The BRRRR Strategy Calculator helps real estate investors evaluate Buy, Rehab, Rent, Refinance, Repeat deals by calculating cash recovery, monthly cash flow, and return metrics. In the 2026 market with elevated interest rates, precise deal analysis is essential -- this tool projects whether your refinance proceeds will recover your invested capital and whether rental income covers the new mortgage payment.
Core BRRRR Formulas and How They Connect
The BRRRR strategy hinges on a chain of calculations where each output feeds the next. Understanding these formulas helps you identify exactly where a deal succeeds or breaks down.
total invested = purchase price + rehab cost
refinance proceeds = ARV x (refinance LTV / 100)
cash left in deal = total invested - refinance proceeds
monthly NOI = monthly rent - monthly expenses
monthly mortgage = PMT(rate/12, term*12, refinance proceeds)
monthly cash flow = monthly NOI - monthly mortgage
cash-on-cash return = (annual cash flow / cash left in deal) x 100
DSCR = monthly NOI / monthly mortgage
cap rate = (annual NOI / ARV) x 100
The critical insight: your refinance proceeds depend entirely on ARV and LTV, while your cash flow depends on rent minus expenses minus the mortgage on those proceeds. A deal can achieve full cash-out but still have negative cash flow if expenses and debt service exceed rental income.
| Metric | Formula | Target |
|---|---|---|
| Cash Left in Deal | Total Invested - Refi Proceeds | $0 or less |
| DSCR | Monthly NOI / Monthly Mortgage | 1.25+ |
| Cap Rate | Annual NOI / ARV | 6-8% |
| Cash-on-Cash | Annual Cash Flow / Cash Left | 8-12%+ |
| 70% Rule | Total Invested / ARV | Below 70% |
Step-by-Step BRRRR Deal Analysis
Consider an investor in 2026 evaluating a property: $150,000 purchase price, $40,000 rehab budget, $250,000 ARV, 75% LTV refinance, $2,000/month rent, $500/month expenses, 7% interest rate, 30-year term.
- Calculate Total Investment: $150,000 + $40,000 = $190,000.
- Determine Refinance Proceeds: $250,000 x 75% = $187,500.
- Find Cash Left in Deal: $190,000 - $187,500 = $2,500 remaining.
- Calculate Monthly Mortgage: PMT(7%/12, 360, $187,500) = $1,247/month.
- Compute Monthly Cash Flow: ($2,000 - $500) - $1,247 = $253/month.
- Assess Cash-on-Cash Return: ($253 x 12) / $2,500 = 121.2% on remaining capital.
- Check DSCR: $1,500 / $1,247 = 1.20 -- slightly below the 1.25 lender threshold.
This deal recovers 98.7% of invested capital with strong cash flow, but the 1.20 DSCR may require negotiating better rent terms or reducing expenses to secure DSCR-based financing.
What 2026 BRRRR Benchmarks Look Like
Market conditions in 2026 have shifted the benchmarks that experienced BRRRR investors use to evaluate deals. Higher interest rates mean mortgage payments consume a larger share of NOI, making DSCR the critical gatekeeper for refinancing.
| Benchmark | 2024 Target | 2026 Target | Why It Changed |
|---|---|---|---|
| Cash-on-Cash Return | 12%+ | 8-10%+ | Higher rates reduce cash flow |
| DSCR | 1.20+ | 1.25+ | Lenders tightened requirements |
| Cap Rate | 5-7% | 6-8% | Investors demand higher yield |
| LTV on Refi | 75-80% | 70-75% | Lenders more conservative |
| Max All-In Cost | 75% of ARV | 70% of ARV | Tighter margins require buffer |
For the default example in this calculator -- $100,000 purchase, $30,000 rehab, $180,000 ARV at 75% LTV -- the deal achieves full cash-out with $135,000 in refinance proceeds covering the $130,000 total investment. The 1.22 DSCR is close to the 1.25 threshold, and the 7.33% cap rate is solid for most markets.
Lender Requirements and the Refinance Phase
From a lender's perspective, the refinance is the most scrutinized phase of a BRRRR deal. In 2026, DSCR lenders focus on three key metrics: the appraised value (which determines LTV), the debt service coverage ratio (which must typically exceed 1.25), and the seasoning period (usually 6-12 months of ownership before refinancing).
The seasoning requirement means holding costs matter. On a $130,000 all-in investment with 6 months of holding at $800/month in carrying costs, you add $4,800 to your effective total investment. This does not change your refinance proceeds but does increase the true cash left in the deal.
