Seller Fee Calculators
Work out the exact fee, the real payout and your actual margin on every marketplace you sell on.
One rule, ten different rulebooks
Every marketplace and payment processor takes a cut before you get paid, and every one of them computes it a little differently. That difference is where sellers lose money without noticing: a seller fee calculator that assumes every platform works like eBay will quietly misstate what Mercari or Poshmark actually pays you, because the underlying rules aren’t the same shape.
This site keeps one calculator per platform, each built from that platform’s own published fee schedule rather than a generic formula. Pick the marketplace you’re selling on above and every input, rate and rounding rule matches what that platform actually charges, not an approximation of it.
The one thing almost every platform gets you on
eBay, Etsy, PayPal and Mercari all charge their percentage fee on more than the item price: shipping you charged the buyer, and on some platforms sales tax, count toward the base the fee is taken from. A $100 item with $10 shipping isn’t a $100 transaction to the fee calculation; it’s $110. Folding shipping into the item price instead of charging it separately doesn’t reduce the fee; the total the buyer pays is what matters, however you split it across the two fields. Every calculator here applies this correctly, which is the single most common thing a seller doing the math by hand gets wrong.
Net payout vs. profit vs. margin
A platform’s payout is not your profit. Net payout is what the marketplace deposits after its own fees, the number on your transaction history. Profit subtracts what the item and its shipping actually cost you, which the platform has no visibility into and doesn’t include. Margin expresses that profit as a percentage of what the buyer paid, which is the number worth watching if you’re pricing consistently across many items rather than checking one sale at a time. Every calculator on this site shows all three, because the payout figure alone is the number that makes a loss-making sale look fine.
What "fee calculator" actually needs to know
A useful fee calculator needs four numbers, and most sellers only have two of them in mind before they start: what the buyer paid you (the sale price), what you charged for shipping (which several platforms fold into the fee base), what the item and its shipping actually cost you, and which category or tier your sale falls into, because that's what selects the rate. Skip the third number and you get a payout figure, not a profit figure, and a payout that looks fine can still be a loss once the cost of the item is subtracted from it. That's why every calculator on this site asks for cost alongside price, even though the platform itself never does.
The category question matters more than it looks. eBay alone runs a different rate for handbags, jewelry, books, coins, guitars and bullion than it does for everything else, and three of those categories switch rate at a threshold rather than blending into it, clear $2,000 on a handbag sale and the whole sale reprices to 9%, not just the amount above $2,000. Guess the wrong category on a $3,000 handbag and the fee estimate is off by tens of dollars, which is real money on a single sale and compounds fast across a month of them.
Selling across more than one platform
Cross-listers, sellers running the same inventory on eBay, Poshmark, Mercari and Etsy at once, are the group this site is built for most directly. The same $40 item nets a different amount on each platform, not because one is "better" than the others in general, but because each platform's fee structure rewards a different price range. A flat-fee platform like Poshmark or Mercari favors cheaper items where a percentage-based competitor's minimum fixed fee eats a bigger share; a percentage-only platform like eBay favors higher-value items where the percentage stays constant but a competitor's flat fee starts to look small by comparison. Pricing the same item identically everywhere and hoping the margins come out even is how a cross-lister ends up unknowingly running some listings at a loss. Running the actual number through the matching calculator before choosing where to list, rather than after, is the only way to know which platform is actually paying you more on that specific item.
Rates change: here’s how we keep up
Marketplace fee schedules change several times a year, usually with weeks of public notice. Every rate on this site links to the platform’s own published schedule and carries the date it was last checked, and every change we apply is recorded on the fee change log with a source link, so if a number here ever disagrees with what you see on your own statement, you can see exactly when it changed and where the new figure came from.
Not affiliated with any marketplace
This site is independent. It is not affiliated with, endorsed by, or sponsored by eBay, PayPal, Etsy, Amazon, Mercari, Poshmark, Stripe, Cash App, Depop, Vinted or Whatnot. Platform names appear here only to describe which fee schedule each calculator applies.
Frequently asked questions
Why isn’t there one calculator for every marketplace?
Because the schedules aren’t the same shape. eBay charges a percentage plus a per-order fee on the total the buyer paid; Poshmark charges a flat fee below $15 and a flat percentage above it; Mercari is a single flat rate with no processing fee on top. A single form would either lie about one of these or need so many conditional fields it stopped being usable. Pick your platform above and the calculator matches its actual rules.
Do these calculators include listing fees or subscription discounts?
No, they model the standard per-sale fee every seller pays by default. Store subscriptions (eBay), Offsite Ads (Etsy) and other opt-in costs are separate and are noted on the platform page where they apply.
Are these the official marketplace calculators?
No. This site is independent and not affiliated with, endorsed by, or sponsored by eBay, PayPal, Etsy, or any other platform named here. Every rate is read from that platform’s own published fee schedule, cited and dated on its page.
How often do marketplace fees change?
Several times a year, usually announced with weeks of notice and taking effect on the platform’s own schedule rather than a fixed annual date. Every change we apply is logged, dated and sourced on the change log.
Why do fees apply to shipping, not just the item price?
Most marketplaces (eBay, Etsy, PayPal, Mercari) charge their fee on the total the buyer paid, item price plus whatever you charged for shipping, and on some platforms, sales tax too. Pricing an item lower and shipping higher doesn’t reduce the fee; it just moves the same dollars between two fields that both count.
Which marketplace takes the smallest cut?
It depends on your price point, not just the headline rate. Mercari’s flat 10% beats eBay’s ~14% effective rate on most sales, but Poshmark’s $2.95 flat fee under $15 can beat both on cheap items, and PayPal’s 3.49% + $0.49 is cheapest of all if you’re only processing a payment rather than paying a marketplace’s own selling fee. Run your actual numbers through each calculator rather than trusting the headline percentage.
Do these numbers include income tax?
No. Net payout here means what the platform deposits to your account after its own fees. It is not your after-tax profit. Selling as a business has separate income tax and, in the US, 1099-K reporting obligations that these calculators don’t model.
Why does the fee apply to shipping and sales tax on some platforms?
Because the platform treats the total amount it processed on your behalf (not just the item price) as the transaction it’s charging a fee on. eBay and Etsy both work this way; the platform collects the whole payment from the buyer, remits any sales tax to the state itself, and takes its percentage before passing the rest to you.
Can I pass the fee on to the buyer?
Most platforms let you price however you want, so raising your price to cover the fee is common and not against most terms of service, but the fee is then calculated on the new, higher price too, so you can’t fully offset it by simply adding the fee amount on top. Run the number you’re considering through the calculator to see the actual required increase.
Do these calculators work on mobile?
Yes, every calculator on this site is built to be usable on a phone, including on a slow connection, and works without JavaScript enough to display a complete worked example even if a script fails to load.
Is my data sent anywhere when I use these calculators?
No. Every calculation happens in your browser using the same code that renders the page, nothing you type is transmitted to a server, logged, or stored.
Why do different platforms round fees differently?
Most round each fee line to the nearest cent independently, rather than computing one combined rate and rounding once at the end. This calculator matches that behavior line by line, which is why the individual fee amounts you see here should match your own transaction history to the cent.
What if a rate on this site doesn’t match what I was actually charged?
Check the "verified on" date shown under each calculator against the source link next to it. If the platform has changed its rate since we last checked, the calculator will be out of date until we update it. Email us and we’ll fix it; it’ll be recorded on the change log with the date it changed.