Net profit, break-even price, max buy price. eBay fees, Fanatics, PSA grading costs, purchase tax. Two modes: standard ROI and Should I Buy This Card? Run the full math before you buy or list.
The calculator has two modes. In ROI Calculator mode, enter what you paid, what you expect to sell for, and all costs. It shows net profit, ROI, break-even, and max buy price simultaneously.
In Should I Buy This Card? mode, enter your target sale price and desired profit. The calculator returns the maximum price you should pay: your ceiling when bidding, negotiating, or scanning listings.
The Shipping Preset dropdown fills your seller cost automatically based on common USPS methods. Override it manually anytime. Shipping charged to buyer and your actual cost are tracked separately because they affect your bottom line differently.
Platform fees are the most commonly underestimated cost in card flipping. They apply to the full sale price including shipping in most cases.
| Platform | Rate | Notes |
|---|---|---|
| eBay Standard | ~13.25% | Final value fee on sale + shipping |
| eBay Store | ~12.35% | Lower rate with store subscription |
| eBay $1,000+ Promo | ~6.6% | 50% FVF discount on qualifying cards |
| Fanatics Collect | 6–15% | Varies by card type and sale tier |
| Local / Cash | 0% | No fee, often lower sale price |
| Promoted Listing | +2–15% | Add-on cost above standard FVF |
PSA raised prices across five tiers effective February 10, 2026. Express, Super Express, and Walk-Through were unchanged. Turnaround times extended by 5 business days on Value Plus, Value Max, and Regular. TCG Bulk was consolidated into Value Bulk.
| Service Level | Price | Turnaround | Max Value |
|---|---|---|---|
| Value Bulk (Members, 20+ min) | $24.99 | ~95 bus. days | $500 |
| Value | $49.99 | ~65 bus. days | $1,500 |
| Value Plus | $74.99 | ~45 bus. days | $2,500 |
| Value Max | $99.99 | ~35 bus. days | $5,000 |
| Regular | $79.99 | ~25 bus. days | No limit |
| Express | $149.99 | ~10 bus. days | No limit |
| Super Express | $299.99 | ~5 bus. days | No limit |
| Walk-Through | $499.99 | Same day | Shows only |
The shipping preset fills your seller cost automatically. Common USPS rates as of 2026: actual costs vary by weight and zone.
| Method | Approx Cost | Best For |
|---|---|---|
| PWE (Plain White Envelope) | $0.73 | Raw commons, low-value cards |
| Bubble Mailer | ~$4.50 | Raw singles under $50 |
| Top Loader + Bubble Mailer | ~$5.50 | Most raw card sales |
| Small Box (USPS Ground) | ~$8.50 | Graded slabs, multiple cards |
| Priority Mail | ~$9.85 | Higher-value raw cards |
| Priority Flat Rate Medium | ~$16.10 | Lots and multi-card packages |
| + Signature Confirmation | +$3.65 | Add-on for cards $250+ (buyer protection) |
Break-even is the minimum sale price where you avoid losing money after all costs. The gap between break-even and realistic market price is your actual margin. Thin margin means you are taking on risk without much buffer. A $2 price drop, a slightly worse grade, or one extra promoted listing fee can erase it.
The most common mistake: comparing break-even to the highest recent sale comp rather than the median. Use a realistic sale expectation, not an optimistic one.
Prospect card values move when call-ups happen. The weekly update gives you the model’s best current read on who is next, probability scores, ECD dates, and the org context that determines timing.
Prospect card values move when call-ups happen. The weekly update gives you the model’s best current read on who is next, probability scores, ECD dates, and the org context that determines timing.
Prospect card values move when call-ups happen. The weekly update gives you the model’s best current read on who is next, probability scores, ECD dates, and the org context that determines timing.