TCGMargin Live demo Sign in

Know your real profit
on every box.

Landed cost across currencies, every channel's fees, market prices, and a hard guard against selling at a loss — built for sellers of sealed TCG product across multiple channels and languages.

Try the live demo Request beta access

Free during the beta · $15/month at launch · founding testers keep a discount

Built for how sealed-product businesses actually operate

Import English, Japanese, Korean, or Chinese product; sell it on Shopify, eBay, TCGplayer, and beyond; know your true cost and real margin the whole way.

True landed cost

Multi-currency purchase orders anchor to the USD your bank actually debited — wire fees, tariffs, and shipping spread across lines by value. The effective FX rate is derived from real money movement, never a rate feed.

A hard loss guard

Every channel's fees modeled — marketplace cut, payment processing, shipping. Record a sale that loses money after all of it and the app stops you with the full breakdown before saving.

Channel-aware pricing

Break-even and target prices per channel from your real cost and each platform’s fee structure, with a what-if ladder and margin-or-markup basis — your choice.

Preorders, natively

Sell first, buy after. Presold units wait as pending; the covering purchase fills them at its real cost, retroactively. No date games.

Product breakdowns

Open a case, box, or bundle into differently-priced component products; the source’s landed cost splits across them by value weight, conserved to the cent.

Import everything

Order CSVs from Shopify, eBay, and TCGplayer with remembered product matching, plus shipping-label exports (Shopify Shipping, PirateShip, Shippo) that back-fill actual label costs onto matched orders.

Market prices, honestly

Daily TCGplayer prices with 30-day trends and true last-sold sales for linked products — with the data’s limits stated plainly, never oversold.

The whole business

Expenses, subscriptions with auto-posted renewals, shipping P&L per channel, lifetime profit per product, and a dashboard that answers "am I actually making money?"

Pricing

One plan. Everything included.

Free during beta
$15/month at launch
  • Unlimited products, orders, and channels
  • Order + shipping-label imports
  • Daily market data and last-sold prices
  • Expenses, subscriptions, and overhead tracking
  • Your data, exportable any time
Request an invite

Founding beta testers keep a launch discount.

Frequently asked questions

What kind of business is TCGMargin for?

Sellers of sealed TCG product — booster boxes, cases, collections, tins — especially those buying internationally (English, Japanese, Korean, Chinese product) and selling across multiple channels at once. If you wire money to suppliers, take preorders, break cases into components, and juggle platform fees, this was built for your exact workflow.

Can I use it for singles?

You can — a product is anything you name, so tracking singles works mechanically. But TCGMargin isn’t designed for singles at scale yet: there’s no per-card condition tracking, and market data covers product-level daily prices rather than card-level granularity. Sealed is the focus today; deeper singles support may come later.

Is my data private?

Yes — each account’s books live in their own isolated database, physically separate from every other account. No analytics, no telemetry, one session cookie. Full export or deletion on request, any time.

Where does market data come from?

A daily mirror of TCGplayer pricing (tcgcsv.com), refreshed automatically when the source publishes, plus TCGplayer’s public last-sold sales for linked products. Daily snapshots only — no intraday moves — and the app never pretends otherwise.

Which platforms does it support?

Fee models ship for Shopify, eBay, TCGplayer, Whatnot, Wix, Etsy, Amazon, and Mercari — every fee editable, and you can add any channel including no-fee local sales. Order imports: Shopify, eBay, TCGplayer, or a generic CSV.

I sell before I buy (preorders). Does that work?

It’s a first-class workflow. Sales beyond stock become presold units; when the covering purchase lands, they fill at the arriving lot’s actual cost and your realized profit updates retroactively.

What does it cost?

Free while in beta. At launch it’s $15/month, and founding beta testers keep a discount. No card required to try it — the live demo is open right now.

Do I have to enter my history by hand?

No — export your orders from Shopify, eBay, or TCGplayer and the Import tab ingests them in one pass, creating products as needed. Most sellers see their real margins within ten minutes.

What about currencies other than USD?

Buy in JPY, EUR, CNY, or anything else — invoice lines stay in the supplier’s currency while cost math anchors to the USD actually debited, which is the only honest exchange rate.

Is there a mobile app?

It’s a responsive web app — works in any browser including your phone at a card show. Sign in anywhere; your books follow your account.

Request beta access

Free while in beta. Tell us a little about your shop and we'll send an invite — usually within a day.