Card Margin is the professional inventory and profit-tracking platform built for trading card collectors, dealers, and consignment shops. Track your true cost basis — purchase price, tax, shipping, and grading fees — log your sales, and see your net profit in real time.
An inventory and profit-tracking app for sports cards. You add the cards you own, move them between status buckets (On Hand, At Grading, In Vault, Listed, Consigned, Sold, etc.), and log sales. Card Margin calculates your real cost basis and net profit so you stop guessing whether you're actually making money.
Sports card collectors, flippers and resellers, consignors and small shops, and hobbyists who want a clean digital record of their PC. If you own cards and ever sell or trade them, Card Margin gives you the numbers a spreadsheet can't.
Because the spreadsheet you've been meaning to update is costing you more than $14.99. One mispriced sale, one forgotten grading bill, or one misplaced consigned card erases a year of subscription. Card Margin replaces the spreadsheet with bucket workflows, real cost basis, and instant profit math.
Spreadsheets don't track photos, don't roll fees and shipping into cost basis automatically, can't bulk-move 30 cards from On Hand to At PSA, and don't produce a payout report for a consignor. Card Margin does all of that in the same workflow you already use.
Graded slabs (PSA, BGS, SGC, CGC), raw and ungraded cards, sealed boxes and packs, and sports memorabilia like signed baseballs, jerseys, and helmets.
No. Card Margin does not pull or display market prices, comps, or pop reports. We give you one-click research links to eBay sold listings, 130point, and other tools so you can check live data yourself in one tap.
Yes. Bulk import via CSV is available on the Pro Dealer plan, or add items one at a time using the streamlined add form.
No. The Free plan tracks up to 25 items at no cost — no credit card required. Upgrade to Pro Dealer ($14.99/mo) from inside the app when you're ready. Cancel anytime.