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Fix & flip

Model a fix-and-flip: ARV, rehab budget, holding costs, and projected profit.

2 min readLast updated June 2026
Fix & flip screenshot

The flip analyzer is built around resale, not rent. It projects your profit, profit margin, and return on cash assuming you'll sell inside 6 to 12 months.

Inputs explained

  • Purchase price: the all-in acquisition cost, including closing.
  • Rehab budget: line-item scope, not a wish. Add a contingency.
  • ARV (After Repair Value): supported by 3 or more sold comps within 6 months and 0.5 mi.
  • Holding period: months from close to resale (default 6).
  • Financing: hard money rate plus points, or cash.
  • Selling costs: agent commissions, title, transfer taxes (typically 7 to 9% of ARV).

How the math works

  • Total project cost = purchase + acquisition closing + rehab (incl. contingency) + holding costs + interest carry + lender points + lender closing + staging.
  • Net proceeds = ARV − selling costs (ARV × sell %) − seller concessions − staging.
  • Net profit = net proceeds − total project cost − partner split. Pre-tax; income taxes on the gain are separate.
  • Profit margin = net profit ÷ ARV.
  • ROI = net profit ÷ cash invested. Annualized ROI = ROI × (12 ÷ hold months).
  • 70% rule (MAO) = (ARV × 0.70) − rehab total (incl. contingency). Max offer for a typical flip.

How the rehab estimate works

The Rehab Walkthrough has two tabs. Value-add items shape ARV. Construction scope covers contractor line items (drywall, HVAC, plumbing, roofing, paint, flooring) needed for a defensible SOW-level number before your GC bids come in.

  • Multiplier stack. National baseline $/sqft, finish tier (Budget / Standard / Premium), market multiplier by metro or state, and your saved per-market rates.
  • Presets. Cosmetic refresh, Gut rehab, or BRRRR essentials load a sensible starting scope. Search filters items live.
  • Your rates. Type a manual dollar amount, then Save it as your default for the market. The next flip in that metro auto-uses your number.
  • Accuracy. Roughly ±20 to 30% vs actual GC bids at first, tighter once you save a few market rates. Always get real bids before closing.

Reading the results

Profit margin
≥ 15%
Buffers comp drift
Net profit
≥ $25k
Minimum for the risk
Holding period
≤ 6 mo
Every extra month bites
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