Fix and flip calculator
Pressure-test a flip with repair, resale, holding, and selling costs.
Connect the rehab estimate to the deal model so a stronger resale price does not hide a weak repair budget.
Fix and Flip Calculator
Estimate maximum purchase price and projected profit from ARV, repairs, selling costs, and hold time.
Cost summary
Save the deal assumptions with the repair scope, photos, and PDF report in Rehab Estimator.
What to calculate before making an offer
A flip needs enough room for acquisition costs, repairs, time, selling friction, and profit. The repair number is usually the most visible risk, but holding time and resale assumptions can move just as fast. Run the deal with conservative repair and resale numbers before deciding whether the offer still works.
Core inputs for flip analysis
| Input | What to check |
|---|---|
| Purchase price | Include assignment fees, closing costs, and any seller credits. |
| After repair value | Use realistic comps, not the best sale in the neighborhood. |
| Rehab budget | Tie the number to scoped tasks, photos, and cost ranges. |
| Holding costs | Include loan payments, utilities, taxes, insurance, and timeline risk. |
| Selling costs | Include agent commissions, closing costs, staging, concessions, and cleanup. |
| Contingency | Reserve for scope misses, price changes, and delays. |
How repair scope changes the deal
A flip can look profitable until the rehab scope moves from cosmetic to systems work. Roof, HVAC, plumbing, electrical, foundation, and layout changes should be modeled separately because they can affect both budget and timeline. If the high side of the repair estimate kills the profit, the offer needs to change.
Where Rehab Estimator fits
- Build the rehab estimate from the same scope of work you reviewed at the property.
- Keep a low-to-high repair range instead of a single optimistic number.
- Compare deal assumptions in the calculator before sending the report.
- Export a PDF estimate when you need a cleaner handoff.
Practical workflow for a flip
Create the property report first, add the major repair categories, then use the fix and flip calculator to test the deal against conservative repair and resale assumptions. Update the report after contractor pricing comes in.
Frequently Asked Questions
What numbers should a fix and flip calculator use?
A fix and flip calculator should include purchase price, after repair value, rehab cost, closing costs, holding costs, selling costs, financing costs, contingency, and target profit.
How should rehab costs be handled in flip math?
Rehab costs should come from a scoped estimate, not a flat percentage. Separate confirmed contractor prices from allowances and include a contingency for unknown work.
What is a good profit margin for a flip?
The required margin depends on risk, timeline, financing, and local resale confidence. Many investors test a conservative case first to make sure a small repair or sale price miss does not erase the deal.
Run the rehab budget and flip math together.
Download Rehab Estimator for scope estimates, calculators, photos, and PDF reports.