The 70% Rule Explained: How to Calculate Maximum Purchase Price
The 70% rule is the most widely used formula in fix-and-flip investing. Learn how it works, when to use it, and when to break it.
BRRRR and fix-and-flip both start with distressed property, but they diverge sharply on exit. Compare the cash flow, tax, and risk profiles.
The Buy, Rehab, Rent, Refinance, Repeat (BRRRR) method and the traditional fix-and-flip share the same first two steps: acquire a distressed property below market value and renovate it to retail condition. What happens next defines the strategy. Flippers sell at retail and recycle their capital into the next deal. BRRRR investors lease the property, refinance into a long-term loan, and pull their capital out while retaining the asset.
From a cash perspective, a successful flip produces a lump sum in 4–8 months, typically $30,000–$75,000 per deal in most markets. BRRRR produces a much smaller monthly cash flow ($200–$600 per door), but the investor keeps the asset, builds equity through mortgage paydown and appreciation, and, if the refinance pulls out all invested capital, achieves an effectively infinite return on cash.
Tax treatment differs dramatically. Flip profits are classified as ordinary income (often dealer income, meaning no capital gains treatment and subject to self-employment tax). BRRRR rental income receives favorable treatment through depreciation, interest deductions, and, on sale, long-term capital gains. Over a decade, the after-tax outcomes can look very different even when pretax profits are similar.
Risk profiles also diverge. Flippers carry market timing risk, if values fall during a 6-month rehab, the margin compresses. BRRRR investors are exposed to tenant risk, interest rate risk at refinance, and long-term property management demands. Neither is safer; they're exposed to different risks.
Many investors run both strategies simultaneously, flipping properties in neighborhoods with strong resale demand and BRRRRing properties in cash-flow markets. The right mix depends on your capital situation, income needs, and long-term goals.
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