What it is
BRRRR is a capital-recycling loop rather than a property type. The same down payment funds one deal, comes back out through a refinance, and funds the next — so portfolio growth is limited by deal flow and lender appetite instead of by savings. The engine is forced appreciation: buying below market, renovating, and creating value the market will underwrite, rather than waiting for the market to hand it to you. Each pass leaves behind a rented property with long-term debt on it and, ideally, returns most of the cash you started with.
How it is calculated
Work backward from the refinance. Suppose ARV is $210,000 and the lender offers 75% cash-out — that is a $157,500 loan. If purchase, rehab, closing, and holding costs total about $153,000, the loan covers the basis before roughly $4,000–$5,000 of refinance costs, which in this illustration leaves the deal close to break-even on capital returned rather than a clean full return. The formula subtracts those costs for a reason: appraisal, origination, title, and prepaid escrows are real, and a deal that pencils only when you ignore them has no margin at all.
Cash left in the deal = (purchase + rehab + closing and holding costs) − refinance loan proceeds, where proceeds ≈ ARV × the lender’s cash-out loan-to-value, less refinance costs.
How investors actually use it
The discipline lives in the buy. Because the refinance is capped at a percentage of appraised value, the amount of cash you recover was determined the day you agreed on price — no amount of good rehab management fixes an entry price that was too high. Experienced operators underwrite the refinance before making the offer, using a conservative ARV, the loan-to-value a real lender will actually fund today, and the seasoning window they will have to carry. They also underwrite the rental on its own merits, since a property that refinances beautifully but does not cover its new payment is a liability.
The common mistake
Assuming the appraisal will confirm your ARV and that rates will hold. Appraisals come in light often enough that the plan needs room to absorb it, and a refinance priced months after purchase is priced at that day’s rate, not the one in your spreadsheet. The other trap is chasing a full capital return so hard that the property ends up over-leveraged: a maximum cash-out loan raises the payment, thins coverage, and turns a cash-flowing rental into one that cannot survive a vacancy.
Put it to work
Related terms
- ARV (after repair value) — The estimated market value of a property once renovations are complete, based on comparable recently sold homes.
- Cash-out refinance — Replacing an existing mortgage with a larger new loan and taking the difference in cash, tapping built-up equity without selling.
- Seasoning — The minimum time you must own a property — or hold a mortgage — before a lender will let you refinance at its new appraised value or pull cash out.
- 70% rule — A flip and BRRRR guideline: pay no more than 70% of the after-repair value minus estimated rehab.