BRRRR calculator
Buy, Rehab, Rent, Refinance, Repeat — the full cycle in one calculator. All-in cost, the refinance loan sized off ARV, exactly how much cash stays tied up in the deal, and the cash-on-cash return once the refinance closes.
Buy and rehab
The refinance
Rent and operating costs, after refinance
Cash left in the deal
$180,750
Capital recovered
12%
Post-refi monthly cash flow
−$38
Post-refi cash-on-cash
-0.3%
All-in cost through rehab is $205,500 against an ARV of $280,000, a forced equity gap of $74,500. The refinance sizes a $210,000 loan (75.0% of ARV) and pays down to $24,750 in net cash back after closing costs and any purchase-loan payoff. That leaves $180,750 still tied up in the deal, the denominator for the cash-on-cash figure above. Refinance DSCR is 0.97x.
The five steps
BRRRR is a hybrid of a fix-and-flip and a buy-and-hold rental — it borrows the forced-appreciation math of a flip, then keeps the property as a rental instead of selling it.
Purchase a property below its stabilized market value — usually one needing real work, priced accordingly, with short-term financing (hard money or a bridge loan) or cash.
Renovate to raise the property’s value and make it rent-ready. This is where forced appreciation gets built — the goal is to spend less on rehab than the resulting value increase.
Place a tenant at market rent. A signed lease at a real, defensible rent figure is what a lender will actually underwrite in the next step — a rent estimate alone usually isn’t enough.
Refinance out of the short-term purchase loan into a long-term mortgage, sized off the new after-repair appraised value rather than the original purchase price — this is the step that recovers capital.
Take the cash recovered from the refinance and use it as the down payment and rehab budget for the next property, running the same pool of capital through deal after deal instead of saving fresh cash for every purchase.
The refinance is where a BRRRR deal actually lives or dies. Buy and rehab can go well and rent can come in at or above projection, but if the refinance appraisal comes in light, or the lender's LTV cap is lower than planned, the capital-recycling promise of BRRRR doesn't happen — the property still ends up a perfectly good rental, just not one that freed up cash for the next deal.
The BRRRR formula
Two numbers decide almost everything about how a BRRRR deal turns out: all-in cost (everything spent through the end of the rehab) and ARV (what the property appraises for once the work is done). The gap between them is the forced equity the rehab created — and the refinance loan, capped at a percentage of ARV rather than of all-in cost, is what turns some of that forced equity back into cash.
How to calculate BRRRR, step by step
Purchase price, plus the full rehab budget, plus buy-side closing costs, plus any interest or holding costs paid during the rehab period before a tenant moves in.
Pull 3-5 recent comparable sales of renovated properties nearby, adjust for size and condition, and lean toward the low end of the resulting range rather than the high end — an optimistic ARV is the single most common reason a BRRRR refinance disappoints.
Multiply ARV by the lender’s LTV cap (commonly 70-75% for a cash-out refinance on an investment property in 2026) to get the maximum new loan amount.
From the refinance loan amount, subtract the new loan’s own closing costs and the balance of any hard-money or bridge loan used to fund the purchase and rehab — what’s left is the actual cash that comes back to the investor.
Net cash out minus all-in cost is cash left in the deal (or capital recovered, if the result is negative) — the single number that tells you whether this BRRRR actually recycled the investor’s capital.
A worked example
An investor buys a distressed single-family property for $150,000, funded with a hard-money loan. The rehab budget is $45,000, buy-side closing costs run 3% of price ($4,500), and holding costs during the four-month rehab (interest, utilities, insurance) add another $6,000. All-in cost: $150,000 + $45,000 + $4,500 + $6,000 = $205,500. The hard-money loan balance to pay off at refinance is $180,000 (it covered most of the purchase and part of the rehab).
Comparable renovated sales nearby support an ARV of $280,000. A DSCR lender caps the cash-out refinance at 75% of ARV: $280,000 × 0.75 = $210,000 new loan. After 2.5% refinance closing costs ($5,250) and the $180,000 hard-money payoff, net cash back to the investor is $210,000 − $5,250 − $180,000 = $24,750.
Cash left in the deal: $205,500 all-in cost − $24,750 net cash out = $180,750 — meaning $180,750 of the original capital is still recovered as equity but not yet returned as cash; only $24,750 came back at closing. Rephrased as capital recovered: $24,750 ÷ $205,500 ≈ 12%. This deal built real equity (ARV of $280,000 against $205,500 all-in is a $74,500 spread) but recovered relatively little cash — a common result when a lender's LTV cap sits well below what the all-in cost would need to fully recycle capital.
Post-refinance, the property rents for $2,350 a month. After a 6% vacancy allowance, property tax, insurance, and maintenance/management/capex reserves around 18% of collected rent combined, NOI comes to roughly $17,900 a year. The $210,000 loan at 7.25% over 30 years carries a monthly payment near $1,433, or $17,196 a year in debt service. Annual cash flow: $17,900 − $17,196 ≈ $704 — thin, around $59 a month, which is exactly the kind of result that looks fine on the equity side and weak on the cash-flow side, worth flagging before treating this as a finished deal rather than one still needing a second look at rent or expenses.
Working backward: the max all-in cost for full capital recovery
Instead of checking cash-left-in-deal after the fact, this runs the formula in reverse — useful the moment an ARV estimate exists, before an offer is even written.
Take the worked example's ARV of $280,000 with a 75% LTV cap: $280,000 × 0.75 = $210,000 maximum refinance loan. After roughly $5,250 in refinance closing costs and assuming no separate purchase loan to pay off (a cash or fully self-funded rehab), the deal fully recycles capital only if all-in cost stays at or below $210,000 − $5,250 = $204,750. The actual all-in cost in that example was $205,500 — just $750 over the break-even line, which is why capital recovery came in so low relative to the equity created.
This is the number worth calculating before an offer, not after closing: given a realistic ARV and the refinance terms a lender has already confirmed, the break-even all-in cost sets a hard ceiling on combined purchase price and rehab budget. Sourcing a property meaningfully under that ceiling, rather than right at it, is what leaves room for the rehab to run somewhat over budget without eliminating capital recovery entirely.
The refinance: LTV, seasoning, and DSCR loans
Three numbers decide whether the refinance actually returns the capital a BRRRR deal is counting on, and all three vary by lender.
Most lenders in 2026 cap a cash-out refinance on an investment property at 70-75% of the appraised value (ARV) — the all-in cost needs to stay comfortably under that ceiling for the refinance to return meaningful cash.
Many lenders require six months of ownership before they’ll refinance against the full post-rehab appraised value rather than the original purchase price — a rule meant to confirm the value increase is real, not a speculative flip. Some DSCR lenders offer shorter seasoning, sometimes with a lower LTV cap in exchange.
The standard refinance vehicle for BRRRR: a DSCR (debt service coverage ratio) loan qualifies off the property’s own rental income rather than the borrower’s personal income or job history, and typically carries no cap on the number of financed properties — both of which matter a great deal to an investor repeating the cycle multiple times a year.
The financing sequence matters as much as any single number: hard money or a bridge loan funds the buy-and-rehab phase (built for speed on a short hold), and a DSCR loan takes over at refinance (built for a long-term hold on stabilized rental income). Using each tool for the phase it's built for — rather than trying to stretch one loan across the whole cycle — is what keeps the sequence efficient.
DSCR lenders also apply their own coverage-ratio floor on top of the LTV cap — commonly requiring NOI to cover the new mortgage payment by at least 1.0x to 1.25x, depending on the lender and program. In the worked example, NOI of roughly $17,900 against $17,196 in annual debt service is a 1.04x DSCR — inside most lenders' minimums, but thin enough that a small rent shortfall or an unexpected vacancy month could push it below a stricter 1.20x requirement. Checking DSCR alongside LTV before assuming a refinance will close as modeled catches a failure mode pure equity math misses entirely.
The Repeat step: building a pipeline
The fifth R gets the least attention in most BRRRR explainers, but it's the step that actually compounds a portfolio.
Capital recovered from one refinance funding the next purchase is the entire point of BRRRR, and the speed of that cycle depends on three practical constraints beyond the deal math itself: how fast a hard-money or bridge lender can fund a new purchase, how fast a rehab crew can actually complete work (not just how fast it's scheduled), and how fast a DSCR refinance can close once seasoning requirements are satisfied.
An investor who can reliably run one full BRRRR cycle every four to six months — a realistic pace once a rehab crew, a hard-money relationship, and a DSCR lender are all established — completes two to three cycles a year. Comparing purchase counts across cash-funded versus hard-money-funded BRRRR investors consistently shows the leveraged approach completing more deals per year, precisely because the same capital isn't fully tied up in one property while the next purchase waits for savings to rebuild.
The pipeline slows wherever any one of the three legs is weak: a rehab crew that routinely runs behind schedule delays the refinance regardless of how fast the lender could otherwise move, and a lender with a strict 12-month seasoning requirement caps cycle speed no matter how quickly the rehab finishes. Building relationships with a rehab crew and a lender that both match the intended pace, before scaling up deal volume, is what keeps the fifth R from becoming the bottleneck.
'Infinite returns' explained
When a refinance returns 100% or more of the capital originally invested — cash left in the deal at zero or negative — the resulting cash-on-cash return is mathematically undefined (dividing by zero or a negative number), which is why it's commonly described as "infinite." It means the investor now owns a cash-flowing rental with none of their own money still tied up in it, sometimes with cash left over.
It's the headline result BRRRR is famous for, and it does happen — but it requires all-in cost to sit meaningfully below ARV times the refinance LTV cap, which in turn requires buying at a real discount, rehabbing efficiently, and the appraisal actually coming in at or above the pre-refinance estimate. The worked example above shows the more common outcome: real equity created, but only a fraction of the capital recovered in cash, because the lender's 75% LTV cap landed below what full recovery would have needed. Both outcomes are legitimate BRRRR results — "infinite returns" is the best case, not the baseline expectation.
BRRRR vs. buy-and-hold
The two aren't mutually exclusive — many investors run BRRRR specifically to build a portfolio faster in the early years, then shift toward simpler buy-and-hold purchases once the portfolio and cash flow are established and the extra work of sourcing and managing rehabs stops paying for itself. Run a completed BRRRR property through the cash on cash return calculator for the fuller multi-year projection, leverage sweep, and exit IRR this page doesn't attempt to replicate.
Common mistakes
The single biggest driver of a disappointing refinance — an appraisal that comes in below the pre-rehab estimate directly shrinks the refinance loan and the cash recovered, dollar for dollar at the LTV cap.
A rehab that runs over budget or over schedule raises all-in cost and adds holding costs at the same time — a double hit to the cash-left-in-deal figure.
Planning a refinance at month three when a lender requires six months of seasoning delays capital recovery by the same amount, which matters if the next deal is time-sensitive.
When cash left in the deal is zero or negative, the honest answer is "infinite" or "capital fully recycled," not a blank field or a misleading 0% — see the section above.
Seasoning requirements, LTV caps, and minimum DSCR ratios vary meaningfully by lender — confirming refinance terms during the hard-money phase, not after the rehab is finished, avoids planning a deal around numbers a lender won’t actually offer.
BRRRR rehabs should build rental value and support the ARV needed for the refinance, not retail-buyer finish quality — spending toward a flip-level finish often outruns what the appraisal or the rent actually supports.
Frequently asked questions
Buy, Rehab, Rent, Refinance, Repeat — a five-step rental investing strategy where a property is purchased below market value, renovated to raise its value, rented to a tenant, refinanced at the new higher appraised value to pull the original capital back out, and that recovered capital is used to repeat the cycle on the next property.
A straight rental purchase leaves the down payment and closing costs permanently tied up in that one property. BRRRR is designed to recover most or all of that capital through the refinance step, so the same pool of cash can fund a second, third, and fourth property in succession rather than sitting parked in the first one indefinitely.
Nothing about BRRRR requires the purchase phase to use debt — the strategy works identically whether the buy-and-rehab phase is funded with cash, a hard-money loan, or a bridge loan. The refinance step is what recovers capital either way; a cash purchase just means there's no purchase-loan balance to pay off at refinance, so more of the refinance proceeds come back to the investor as net cash out.
BiggerPockets popularized the BRRRR acronym and offers its own calculator as part of a paid membership tool suite. The underlying math — all-in cost, ARV, refinance LTV, cash left in the deal, post-refinance cash flow — is the same set of standard real estate formulas any BRRRR calculator runs; this one is free, requires no account, and links straight through to the fuller multi-year cash-on-cash and IRR analysis once the refinance numbers look right.
Most experienced BRRRR investors look for two things together: recovering close to 100% of the capital invested (ideally 90-100%+) at refinance, and the property still cash-flowing $200-$500 or more per month after the new mortgage payment. A deal that recovers all the cash but barely breaks even monthly, or one that cash-flows well but leaves half the original capital stuck in the deal, both fall short of what BRRRR is meant to deliver.
Yes — a BRRRR calculator excel workbook is a reasonable way to model a deal, and many investors build their own to match their specific lender's terms. The tradeoff is that a spreadsheet has to be built and debugged once, while a web calculator like this one updates instantly as inputs change and needs no setup — useful for screening several potential deals back to back before committing spreadsheet time to the one worth a deeper look.
It can, just less dramatically. Recovering 60-70% of capital still frees up meaningful cash for the next deal, even if it isn't the full 'infinite returns' scenario. The math doesn't require 100% recovery to be worthwhile — it just means the investor's next purchase needs a smaller top-up of fresh capital rather than none at all.
Run your own BRRRR numbers above, free, or continue into the cash on cash return calculator for the full multi-year hold analysis once the refinance numbers look right.
Glossary:Cap Rate,Net Operating Income (NOI)
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