Profit tracking built for sports card flippers

The lot you broke up, the grading fee, Whatnot’s cut on every checkout, and the raw card that has been listed since the playoffs. FlipTracker turns all of that into one number per card and one number per month.

Fee rates verified 2026-08

What a $150.00 card actually nets

Same card, bought for $25 raw + $25 grading, sold for $150.00 on each platform. Fees from each platform’s own fee page, no shipping label included:

Built for how card flips work

Grading fees on the card they belong to

The grading fee and the shipping to the grader go in Other Costs on that card, so a graded card’s profit is after grading, not before. Put the cert number in the SKU field and the slab is searchable by cert.

Break up a lot without losing the maths

Bought a 50-card lot for $200? Log the cards you will sell individually, split the lot cost across them ($4 each, or weighted toward the hits), and duplicate a card to log the rest of the lot in seconds. The lot’s profit is the sum of its cards, not a guess.

eBay’s card rate, Whatnot’s per-checkout fee

eBay charges 13.25% on sports cards rather than the 13.6% most categories pay; Whatnot charges 8% plus 2.9% and $0.30 on every buyer checkout, so ten $5 singles cost more in fees than one $50 sale. Pick the platform and enter the sale; the fee fills in from rates verified on each platform’s fee page. eBay’s auto-fee uses its standard rate; type the 13.25% figure in and it sticks.

Aging alerts for cards that stopped moving

30, 60 and 90-day flags on listed inventory. A rookie card listed at the peak of the hype, still sitting at 90 days, is a reprice or a bundle, and the flag says so before you notice.

Smart Scan from the card

Photograph the front and back; AI fills in the title, set, condition and an estimated resale value per platform. Pro feature, included in the free trial.

Profit by platform, not just in total

The analytics dashboard splits profit and sell-through by platform, so you find out whether your Whatnot streams actually net more than your eBay listings after fees and shipping, instead of assuming.

Import your eBay transaction report

The CSV importer recognises eBay’s transaction report and brings in the actual fees charged. Your existing spreadsheet imports too, with automatic column mapping.

Logging a sale takes three steps

1. Log the card when you buy it. Player, set and year in the title, what you paid, where it came from. Add the grading fee to Other Costs when you submit it and the cert number to SKU when it comes back.
2. Mark it sold with the payout. Choose eBay, Whatnot or Mercari and enter the sale price; the fee is calculated. Add your shipping cost if you paid it.
3. Read the numbers. Profit per card, profit this month, which platform nets the most, and which cards are ageing out.

Common questions

How much does eBay take on sports cards?

13.25% final value fee on sports cards plus $0.30–$0.40 per order. On a $150.00 card that is $20.27 in fees, for a $129.72 payout. Sports Trading Cards, Non-Sport Trading Cards and Collectible Card Games all pay 13.25% rather than the 13.6% most categories pay, charged on the buyer’s total including shipping and sales tax. Above $7,500 the rate on the excess drops to 2.35%.

How much does Whatnot take?

8% commission plus 2.9% + $0.30 payment processing. On a $150.00 card that is $16.65 in fees, for a $133.35 payout. The 8% applies to Sports Singles up to $1,500 per item, and Whatnot is currently charging 0% on the portion above that for a limited time. The 2.9% and $0.30 are charged on the buyer’s checkout total, including their shipping and tax, on every checkout.

Is grading worth it?

Nothing can tell you before the card comes back. FlipTracker can tell you afterwards: with the grading fee in Other Costs, the analytics show whether your graded cards actually net more than your raw ones once the fee, the shipping to the grader and the wait are counted.

Does FlipTracker connect to my eBay or Whatnot account?

Not live. eBay’s transaction report imports with the actual fees charged, so a month of sales is one CSV upload. Whatnot has no seller API, so no tracker can sync it; you log each sale in a few taps.

Is it free?

Yes. The free plan tracks up to 25 cards with no card on file. Pro is $4.99 a month for unlimited inventory, Smart Scan, photos, analytics and CSV import, with a 14-day free trial.

Fee calculators for the platforms sports card flippers use