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The accounting & inventory system built for trading card businesses
Real-time profit, accurate inventory, consignment & breaks, and VAT-ready books — without spreadsheets. Finally know what every card actually made you.
For Whatnot, eBay & Shopify card sellers, breakers, consignors and card retailers.
Selling cards is easy. Knowing if you made money is hard.
Your sales live on three platforms. Your fees hide in payout reports. Consignor splits take hours. Your cost basis is in your head — and your spreadsheet broke two months ago.
Spreadsheets break at volume
Manual cost tracking falls apart the moment you’re moving real volume across breaks, Whatnot shows, eBay listings and Shopify orders.
Generic accountants don’t get cards
To most accountants, a PSA 10 slab and a £2 bulk card are the same line of “stock” — and consignment is a mystery. That mindset misprices your inventory and your tax.
Fees & splits eat invisible profit
Platform fees, shipping, refunds and consignor commissions hide in payout reports. Most sellers find out their real margin at tax time. Or never.
Generic bookkeeping was never built for this. It doesn’t understand that a graded slab and a bulk common are different assets, that a break is a hundred tiny sales, or that half your stock might belong to your consignors. So we built the system that does — finance-first, with an audit trail, by someone who actually sells cards.
— Jordan Ellis, Founder, On Top Accounts
Built for sellers, breakers and consignors — not “modern businesses”
Your accountant doesn’t understand cards. Your inventory app doesn’t understand tax. OTA does both.
Designed for card sellers
From binders to breaks, OTA is built around how you actually buy, hold, split and sell cards.
A pipeline that protects your numbers
Every sale, purchase and import is validated — errors and duplicates are caught before they touch your books.
Live valuations built in
Pricing intelligence via Card Ladder and TCGplayer, so your stock value reflects the market — not last year’s guess.
Consignment & breaks, handled
Ownership, commissions and payouts calculated for you — with a statement each consignor can trust, and break-level P&L.
VAT-ready books, margin scheme aware
Clean, reconciled records posted into Xero — including the VAT margin scheme where it applies.
Real profit per sale
One profit formula across every platform and break: sale price minus every fee, split and cost.
Three steps to a card business you can actually see
Discovery call & platform review
30 minutes. We map your platforms, volumes, fees, breaks and consignors — and tell you exactly what we’d fix first.
Founder-led onboarding
We set OTA up around your real data — marketplace exports, purchase invoices and bank transactions — validated and reconciled from day one.
Monthly clarity
A live portal plus a monthly report in plain English: sales, true profit, inventory value, consignor payouts — posted into Xero.
Numbers you can stake your business on
Before OTA opened its doors we deliberately attacked our own system with broken data, duplicates and edge cases — until everything was caught. Here’s what that means for you:
If you sell cards as a business, this was built for you
Pricing that fits your business — agreed before you commit
Every seller’s volume, platforms and consignment mix differ, so we agree pricing on your free discovery call and lock it in writing before you commit. If OTA isn’t right for you, we’ll say so.
Questions card sellers actually ask
Do you handle breaks and consignment?
Do you replace my accountant?
What about VAT?
I sell across Whatnot, eBay and Shopify. Can you handle all three?
How much time does it take me?
What does it cost?
Find out what your card business is actually making
30 minutes. We map your platforms, fees, breaks and consignors — and tell you exactly what we’d fix first. No obligation, no hard sell.