How to make money selling Pokémon cards
People do make a living selling cards — but the ones who last treat it as a buying business, not a selling business. The profit is made when you buy. Here's how the maths actually works.
Written by Ben and Tom, Cardinal
The business in one sentence
Buy collections and singles at a percentage of their real market value, sell them at market, and keep the difference after fees, postage, table costs and your time. Everything else — shows, online stores, grading flips — is a variation on that.
The vendors who survive are ruthless about the buying side. They know the sold-price value of a card before they touch it, they apply the same percentage every time, and they walk away from lots where the margin isn't there.
What you pay decides what you make
The exact percentages are yours to set. What matters is that they're consistent, defensible, and applied to real sold prices — not guesses.
A card bought at 70% and sold at 100% is not a 30% profit. eBay or marketplace fees, payment processing, postage, table costs and the cards that never sell all come out of that gap. Most working vendors find the true margin on an online sale lands well under the headline number — which is why the buy price matters so much.
Where to source cards
- The public walking in. If you have a shop, a market stall or a known presence at shows, collections come to you. This is the best margin most vendors ever see.
- Marketplace mispricing. Underpriced listings, bad photos, wrong set names. Real but competitive, and it scales poorly.
- Collection lots. Estate clear-outs and lapsed collectors. Higher capital, higher risk, and where a fast, confident valuation wins the deal.
- Sealed product. Bought at retail or wholesale and held. A different game — slower, capital-heavy, and driven by release cycles rather than single-card knowledge.
Choosing your channel
Card shows and markets
Cash in hand, no postage, trades happen naturally. Costs you a table fee and your weekend, and your results live or die on foot traffic.
Online marketplaces
The biggest audience and the best prices, minus fees, postage, packing time and disputes. Rewards volume and systems.
A permanent shop
Walk-in buys and trade credit economics, in exchange for rent and hours. The buying counter is the engine room.
Community and social
Facebook groups, Discord and forums. Fee-free and relationship-driven, with all the risk carried by you.
The part that isn't optional
Every working vendor we know tracks the same things: what each card cost, what it's worth today, what it sold for, and what the real margin was after costs. The ones who rely on memory slowly drift into stock that's overpriced, purchases they can't justify and a bank balance that doesn't match the binder.
That's the gap Cardinal fills. It prices from recent sold data, applies your buying percentages automatically, tracks cost basis and margin on every card, and closes out a show day with the actual numbers. It's the record-keeping the business needs, without the spreadsheet.
Run the numbers on a real card
Search a card in the live demo, set your buying percentage, and see the cash offer, trade value and margin it produces — the workflow vendors use at the counter.
Keep reading
Make better deals with your own stock.
Know what you own, what it's worth and what you're making on it.