Every sale, every fee, every hour of your time — priced. Real accounting for resellers on eBay, Mercari, Poshmark, Whatnot, and Mercado Libre.
Ends October 1 or when seats run out · cancel anytime
P&L · July 2026
| Platform | Revenue | Net |
|---|---|---|
| eBay | $1,842.00A | $742.18 |
| Poshmark | $684.00A | $281.40 |
| Mercari | $412.50S | ($18.05)E |
| Mercado Libre |
Nike Air Max 90 · US 10.5 · COGS $9.50 · ship $5.85 · 41 min of your time
List for
$34.99S
Hits the profit you asked for, after every fee and your time.
Never below
$27.40S
The lowest price still worth the work.
Break-even
$19.85E
Not a target. Below this you are paying to sell it.
Drag to see what any price actually leaves you
at $34.99you keep $13.13· 37.5% margin
Your spreadsheet is lying to you
Fees you never see
Imports that reconcile to the cent. Every fee on its own line.
Guesses dressed as facts
Every number badged: Estimated, your Setting, or Actual.
Imports verified against real marketplace exports — to the cent.
Fee formulas at 100% test coverage, including the edge cases platforms don't advertise.
2026 fee tables, versioned — last March always adds up like last March.
$9/mo locked for life
$19/mo at launch. The founder price never rises, for as long as you stay.
Billed in US dollars. Your card issuer converts at its own rate.
Closes 2026-10-01 — or when the seats run out, whichever comes first · 61 days left
Cancel anytime · no card needed to try the calculators
Todayworks right now
Not ready? Get the launch price and fee-change alerts.
One email a month at most. No card, no popup.
Nothing, for you. The founder price stays at $9/mo for as long as you keep the account. Anyone joining at launch pays $19/mo.
eBay, Mercado Libre, Mercari, Poshmark and Whatnot, all by CSV import today. Mercado Libre works in every country it operates in, not only Mexico.
Export your sales from the platform and drop the file in. We show you exactly what will be written — which columns matched, which fees are estimates, and which orders are already in your books — before anything is saved.
| $303.00A |
| $120.44 |
| Net profit | $1,125.97E | |
Estimated — one COGS figure is still a guess. Totals inherit the weakest number in them.
The hour you never bill
Your time is a cost. Numarico prices it.
True hourly wage · 30d
$12.40E
103.6 hrs logged · break-even rate $8.15
Export your sales from any of the five and drop the file in. They all land in the same books, reconciled the same way — no account access, no developer key, nothing to approve.
eBay
Transaction report, fees to the cent
CSVMercado Libre
IVA & ISR withholdings handled correctly
CSVMercari
Gross sales report
CSVPoshmark
My Sales Report
CSVWhatnot
Weekly orders report
CSVComingnot built yet
We list what's shipped separately from what's sold. If it's in this column, don't pay for it yet.
Your books are yours. Imports need no account access and no developer key, and nothing is written until you have seen it.
The founder price closes on 1 October 2026, or when the last seat goes — whichever comes first. After that the price is $19/mo.
Numarico shows the IVA and ISR that Mercado Libre withholds as their own lines, separately from your profit, because a withholding is tax you owe anyway rather than a cost of the sale. It is bookkeeping, not tax advice.