UtilityBaseCalculators
Reseller Fee Calculator
eBay, StockX, GOAT & Mercari fees → real profit, margin, and ROI per flip.
Updated July 8, 2026
How to use the reseller fee calculator
- 1Pick your marketplace preset (or Custom) — then verify the rates against your own fee page.
- 2Enter sale price, shipping charged, your shipping cost, and what the item cost you.
- 3Add your promoted-listing percentage if you run ads.
- 4Read profit, margin, and ROI — and run this math before you buy, not after you sell.
Common uses
- Deciding the maximum you can pay for a pickup and still hit your target ROI
- Comparing net payout for the same sneaker across eBay, StockX, and GOAT
- Checking whether a promoted listing's boost is worth its percentage
- Pricing a listing backward from the profit you want to clear
Frequently asked questions
Why is my eBay payout smaller than price minus the fee percent?
Three usual reasons: the final value fee applies to the total including shipping charged (not just item price), there's a per-order fixed fee on top, and promoted listings take their percentage as a separate line. Enter shipping and the ad rate here and the payout matches reality.
Are the preset fee rates guaranteed accurate?
They're typical published rates as of mid-2026, and they change — by category, seller level, store subscription, and region. Every number in this calculator is editable precisely so it never goes stale: check your platform's fee page once and set your real rates.
What's the difference between margin and ROI, and which matters?
Margin is profit ÷ sale price — how much of the gross you keep. ROI is profit ÷ item cost — what your invested cash earned. For flipping, ROI usually matters more: a $30 profit on a $60 pickup (50% ROI) beats a $40 profit on a $200 pickup (20% ROI) if you can repeat it, because capital is the constraint.
Should I count sales tax the marketplace collected?
No — marketplace-collected sales tax is charged to the buyer and remitted by the platform; it passes through and isn't modeled here. Income tax on your profits is a separate, real thing worth tracking, but it happens after this calculation, not inside it.
About this tool
The reseller fee calculator turns a sale into the number that actually matters — profit after everything: marketplace fees, payment processing, promoted-listing costs, your shipping, and what you paid for the item. Presets cover the platforms flippers actually use — eBay standard, eBay's reduced sneaker rate, StockX, GOAT, and Mercari — and every percentage and fixed fee is editable, because fees change and vary by seller level, so the tool stays accurate as long as you can read your own fee page. Output is profit, net payout, margin, and ROI, with the full math shown as a one-line breakdown. The difference between resellers who make money and ones who think they do is usually this calculation, done before buying.
Like everything on UtilityBase, the reseller fee calculator runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more calculators here.
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