How the BRRRR method actually works
BRRRR stands for buy, rehab, rent, refinance, repeat. You buy a property below market value, renovate it to raise what it's worth, place a tenant, then take a cash-out refinance against the new after repair value (ARV). The refinance proceeds pull your capital back out so you can put it into the next deal. Every step exists to serve that last R — the whole point is recycling the same money instead of tying it up one property at a time.
The number that matters is cash left in the deal. It's (purchase + rehab + holding costs + closing costs) − refinance loan amount, where the refinance loan is ARV × the lender's LTV. Lenders typically cash-out refinance an investment property at 70–75% of ARV, and that cap is the entire constraint: if your total project cost lands above roughly 75% of ARV, some of your cash stays trapped no matter how well the renovation went. It's the same logic behind the 70% rule flippers use — maximum offer = ARV × 0.70 − rehab — which exists to build in exactly that margin.
Why the return goes infinite. Cash-on-cash return divides annual cash flow by the cash you have invested. When the refinance returns every dollar you put in, that denominator hits zero — the property still throws off cash flow, but none of your own money is in it, so the return is mathematically infinite. That's the BRRRR selling point. A deal that leaves cash in isn't a failure, though: 8–12% cash-on-cash on the remainder is still the band most investors consider a solid residential rental.
Two things break BRRRR deals. The first is seasoning. Lenders typically require a holding period — commonly in the 6–12 month range, though it varies by lender and product — before they'll refinance against the appraised value rather than your purchase price. You carry interest, tax, insurance, and utilities for that whole window with no capital back, which is why holding costs belong in the project total above. The second, and the bigger one, is the ARV coming in below expectation. Every dollar the appraisal misses costs you the LTV share of it: at 75%, an ARV that lands $20,000 light leaves an extra $15,000 of your cash stuck in the deal. Base your ARV on recent sold comparables for renovated properties nearby — never on asking prices or on what you feel the work is worth.
Before you commit, check the refinance actually qualifies. Lenders generally want a DSCR of 1.20–1.25 on an investment loan, and a fully leveraged refinance can fail that test even when the ARV supports the loan amount. It's also worth sanity-checking the stabilized property on cap rate — if the finished asset is a mediocre rental, recovering your capital just means you own a mediocre rental for free.
BRRRR recycles capital through a cash-out refinance at the after-repair value (ARV), not the purchase price. This calculator's own math is: cash left in the deal = total project cost − (ARV × refinance LTV). The refinance rate you enter now competes with the Freddie Mac 30-year average of 6.71% (week of September 3, 2026) — a higher refinance rate doesn't change how much capital comes back, but it does change whether the property still cash-flows once it's out.
Two separate questions this calculator answers
The module underneath this page tracks two things that get conflated constantly: how much of your capital the refinance returns, and whether the refinanced property can still pay for itself. The first is pure arithmetic — total project cost (purchase + rehab + holding + closing) minus the refinance loan amount (ARV × refi LTV). The second depends on the monthly mortgage payment that refinance loan carries at whatever rate you enter, weighed against net operating income. A deal can score perfectly on the first question — 100% of capital recovered — and still fail the second, because a fully leveraged refinance is also the largest possible monthly payment on that property.
The refinance rate is the hinge, not just the ARV
Most BRRRR discussion focuses on the ARV, because it decides how much capital comes back. But the refinance rate decides whether the property is worth having recovered capital into in the first place. At 6.71% on a 30-year term (Freddie Mac PMMS, week ending September 3, 2026), a fully leveraged $180,000 refinance costs about $1,164 a month before taxes, insurance, or a single dollar of maintenance reserve. Two years of a lower average rate would have cut that payment meaningfully on the same loan amount — the strategy's mechanics (buy, rehab, rent, refinance, repeat) haven't changed, but the monthly cost of holding the fully-recycled property has moved with the rate environment, independent of anything the investor did.
That's the practical case for not always maximizing the refinance LTV even when the appraisal supports it. Pulling out every available dollar recycles the most capital, but it also produces the highest possible payment on the property you're left holding. This calculator's DSCR output exists for exactly that check — net operating income divided by annual debt service — because a lender will apply the same test before agreeing to the refinance at all.
Reading the outputs together, not in isolation
Cash left in the deal and DSCR need to be read side by side. A deal that recycles 100% of capital but produces a DSCR below what a lender requires isn't a completed BRRRR — it's a stalled one, because the refinance that was supposed to fund the next purchase may not close at all. Conversely, a deal that leaves some cash in but comfortably clears a lender's DSCR threshold is often the more repeatable version of the strategy: less capital recovered per deal, but each one is a property that actually cash-flows once refinanced, rather than one engineered purely to maximize the amount pulled out.
Methodology
Cash left in the deal, refinance loan amount, monthly mortgage payment, and DSCR are computed exactly as this calculator's module does: total project cost minus (ARV × refi LTV), and a standard fixed-rate amortization on the resulting loan balance. The worked example's mortgage payment uses the Freddie Mac PMMS 30-year fixed average for the week ending September 3, 2026 as the illustrative rate; no other rate or appraisal figure is assumed.
Sources
- Freddie Mac — Primary Mortgage Market Survey (PMMS) — accessed 2026-09-07
How refinance LTV drives the cash left in the deal
| ARV | Refi at 70% | Refi at 75% | Project cost | Cash left in at 75% |
|---|---|---|---|---|
| $200,000 | $140,000 | $150,000 | $150,000 | $0 — fully recycled |
| $220,000 | $154,000 | $165,000 | $150,000 | −$15,000 — cash out |
| $190,000 | $133,000 | $142,500 | $150,000 | $7,500 left in |
| $170,000 | $119,000 | $127,500 | $150,000 | $22,500 left in |
Illustrative arithmetic on a $150,000 all-in project (purchase + rehab + holding + closing). The whole strategy hinges on the ARV — a valuation coming in low is what leaves capital trapped. Lenders typically require a seasoning period before a cash-out refinance; confirm with your lender.
Frequently asked questions
What does BRRRR stand for?
Buy, Rehab, Rent, Refinance, Repeat. You buy a property below market value, renovate it to raise its value, place a tenant, then take a cash-out refinance against the new after repair value (ARV) to pull your capital back out. Whatever cash you recover funds the next deal — the 'repeat' step. The strategy lives or dies on the gap between what you spend and what the property is worth once the work is done.
How do you calculate cash left in a BRRRR deal?
Cash left in the deal = (purchase price + rehab + holding costs + closing costs) − refinance loan amount, where the refinance loan is the after repair value multiplied by the lender's LTV. If the refinance loan covers your whole project cost, the cash left in is zero or negative and you have recovered all of your capital. That number, not the purchase price, is what your post-refi return is measured against.
Why is a BRRRR return sometimes called infinite?
Cash-on-cash return divides annual cash flow by the cash you have invested. If the refinance returns every dollar you put in, the denominator is zero and the return is mathematically infinite — the property still produces cash flow, but none of your own money is in it. That is the outcome the strategy is designed to reach. It depends entirely on the appraisal supporting your ARV, so treat it as a target rather than a forecast.
What LTV will a lender refinance at?
70–75% of the after repair value is the standard assumption for an investment cash-out refinance, and it is the ceiling on how much of your capital can come back out. That cap is why BRRRR requires buying well below market: if your total project cost exceeds roughly 75% of ARV, some of your cash is stuck in the deal regardless of how good the renovation was. Confirm the actual figure with your lender before you commit.
What is the seasoning period on a cash-out refinance?
Seasoning is how long you must own the property before a lender will refinance against the new appraised value rather than what you paid. Lenders typically require somewhere in the range of 6–12 months, though it varies by lender and loan product. It matters because you carry the holding costs — interest, tax, insurance, utilities — for that entire window before any capital comes back. Ask your lender for their seasoning rule before you buy, not after the rehab is finished.
What is the biggest risk in a BRRRR deal?
The ARV coming in below expectation at the appraisal. Every dollar the appraisal misses costs you the LTV share of that dollar in refinance proceeds — at 75% LTV, an ARV that lands $20,000 low leaves an extra $15,000 of your cash trapped in the deal. Base your ARV on recent sold comparables for renovated properties nearby, not on asking prices or on what you hope the work is worth. Rehab overruns are the close second.