For card sellers — live & online
Know your real profit.
Across every platform.
BreakBooks combines your sales from every platform you sell on — Whatnot, eBay, TikTok, Fanatics, card shows, and your own storefront — into one set of books. True profit after fees, cost, and returns, plus the numbers you need for taxes. Whether you go live or list it, it all lands in one place.
7-day free trial · no card required to start
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One P&L, every platform
See combined revenue, fees, and true margin the platforms never show you.
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Tax-ready
Reconcile each platform's 1099-K, track deductible fees, know your taxable net.
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Nothing slips
See what's shipped, still to ship, or returned — and returns leave your profit automatically.
See it work
Watch your books come together.
A live preview — no signup needed. This is the real flow, running on sample data.
app.breakbooks.com/dashboard● live preview
WhatnoteBayTikTok1 platform combined
Net revenue
$2,875
Net profit
$470
Margin
16.3%
WhatnotCharizard Base Set PSA 9$920+$214
eBayDark Charizard PSA 8$340+$45
TikTokRayquaza VMAX PSA 10$480+$88
eBayHo-Oh Neo PSA 7$210+$30
1099-K · Whatnot $2,875· eBay $1,240· TikTok $705Taxable net ready ✓
Import your Whatnot sales