STRATEGY

BRRRR Strategy Calculator: Run the Numbers Before You Buy

Updated March 2026 · 9 min read

The BRRRR strategy — Buy, Rehab, Rent, Refinance, Repeat — is the most capital-efficient way to build a rental portfolio. When executed correctly, you recover most or all of your invested cash on the refinance and redeploy it into the next property. But "when executed correctly" is doing a lot of heavy lifting in that sentence. The math has to work at every stage, and in 2026's rate environment, the margins are tighter than they were in the sub-4% rate era.

The BRRRR Formula

The goal is to get "Cash Left in Deal" as close to zero as possible. Zero means infinite cash-on-cash return — you own a cash-flowing rental with none of your own money stuck in it. In practice, leaving $5,000-10,000 in a deal is still excellent because you're generating monthly income on a very small cash investment.

Worked Example: Cleveland BRRRR Deal

The 75% Rule: Why It's Harder in 2026

For a BRRRR to return 100% of your cash, your all-in cost must be at or below 75% of the ARV (since most cash-out refinances max at 75% LTV). The formula: Purchase + Rehab + Costs ≤ ARV × 0.75. In the example above: $80,000 ≤ $115,000 × 0.75 = $86,250. It works.

The challenge in 2026 is that rehab costs have increased 15-20% since 2020 (labor and materials), and higher interest rates mean your post-refi mortgage payment is larger, which squeezes cash flow. This means you need either deeper discounts on purchase price or more accurate ARV estimates. There's no room for "hopeful math."

Best Markets for BRRRR in 2026

BRRRR works best in markets with large spreads between distressed and renovated property values. Midwest and Southern markets like Cleveland, Toledo, Detroit, Memphis, Birmingham, and St. Louis have deep inventories of distressed properties under $80K that can be rehabbed into $120-150K rental assets. The forced appreciation creates the equity needed for a successful refinance.

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