Real accounting for resellers — every fee, every platform, to the cent.
Numarico turns your sales exports into books that reconcile against the platform’s own totals, price the hours you work, and tell you the truth about what you keep. No account access. No developer key.
It reconciles to the cent, and you can check it
Two real exports, imported and checked order by order against the platform’s own stated net. Not a sample — the whole file.
- Poshmark export
- $7,216.00
- 110 rows → 104 orders
- 104 of 104 matched · 0 off by a cent
- Mercari export
- $6,284.50
- 184 rows → 184 orders
- 184 of 184 matched · 0 off by a cent
The Poshmark file is the harder one: it carries no commission column at all, so every commission is derived from the fee tables — and still lands on the platform’s own number for all 104 orders. Re-run it yourself with pnpm --filter @numarico/importers test.
What it actually does
Imports that reconcile
Order by order against the platform’s own net, not a total that happens to agree.
Six platforms, one set of books
eBay, Amazon, Mercado Libre, Mercari, Poshmark and Whatnot, by CSV export.
No account access
No API key, no OAuth, no password. It reads files you choose to give it and nothing else.
Every rate says where it came from
Published by the platform, official document, corroborated, or your own figure — and the weaker ones can be overridden.
A total is only as strong as its inputs
Estimated, Setting or Actual, and a total inherits the weakest of them. A guess cannot be laundered into a fact.
Fee tables are versioned and dated
Re-running last March still reconciles as last March, after the rates change.
Mexico done properly
IVA and ISR withheld at 8% and 2.5% with an RFC, 16% and 20% without — reported separately, kept out of profit, taken off cash.
Your hours are a cost
The work is priced, and what your hour is actually worth sits next to it.
The pricing maths is tested
99.76% of statements and every function in the pricing engine, including fee thresholds the platforms do not advertise.
Works in a shop with no signal
Installable and offline-capable, network-first so a stale fee table never loads silently.
One subscription, and the calculators stay free
The calculators need no account and never will. The books are the paid part.
See what it costs