Fix & Flip Calculator
Net profit and ROI from purchase, rehab, holding, closing, ARV and selling costs — the costs beginners forget, included.
The ZIP includes the tool, instructions, license and example project.Net profit + ROI
- Purchase
- Rehab
- Holding
- Closing
- ARV
- Selling costs
| Sale price (ARV) | $200,000 |
| − Selling costs | −$16,000 |
| − Total invested | −$165,000 |
| Net profit | $19,000 |
| ROI | 11.5% |
- One HTML file — double-click to open in Chrome, Edge, Firefox or Safari. No install.
- Works fully offline. No account, no subscription, nothing sent anywhere.
- Bilingual — switch English / Spanish with one click.
- Save unlimited scenarios (one property each) and compare them side by side.
- Save / Open your work as a file you own — Documents, Dropbox, USB.
- Clean one-page Print / PDF report.
- Instructions in English and Spanish, license and example file included.
HOW FLIP PROFIT WORKS
Flip profit is the sale price minus everything it took to get there: purchase, rehab, holding costs (loan interest, taxes, insurance, utilities while you own it), buying and closing costs, and selling costs (agent commission, transfer taxes). ROI is that profit divided by the total cash and costs you put in. The number that kills flips isn't the purchase price — it's the costs investors forget: a longer hold, a rehab overrun, or selling costs they didn't budget. Price every line conservatively.
CRIM Property Tax Estimator
Estimate the annual CRIM contribución from the assessed (1957) value, exemption and your municipality's rate — before you buy, bid or sign.
Max Bid Calculator
The most you can bid and still hit your minimum profit. Write it down before the auction — never bid a dollar past it.
BRRRR Calculator
How much cash you pull back out at the refinance, and whether the property still cash-flows after.
Rehab Cost Estimator
A fast, defensible rehab number before you make an offer: per-square-foot base plus kitchen, baths, roof and contingency.