Rates come only from the marketplaces themselves
Every fee rule on SoldSplit comes from the marketplace’s own fee page, help center or official announcement, and each calculator links those pages under Sources. We don’t take rates from other calculators, forums or search snippets. If a marketplace’s page can’t be read, we use that same marketplace’s help center or an archived copy of its own page, and say so on the page. If we can’t verify a rule at all, we leave it out or label it unconfirmed (like Whatnot giveaways).
| Marketplace | Fee rules checked | Next check | Shipping label info checked | Official fee page |
|---|---|---|---|---|
| eBay | eBay Help: Selling fees (eBay.com) | |||
| Poshmark | Poshmark: Guide to Poshmark (fees) | |||
| Mercari | Mercari Help: Fees on Mercari | |||
| Whatnot | Whatnot Help: Whatnot seller fees | |||
| Depop | Depop Help Centre: Seller fees and charges | |||
| Etsy | Etsy: Fees & Payments Policy |
Dates come from the site’s data: the fee engine (fees.js), and the shipping data file for label prices. USPS prices on the shipping calculator are valid from October 4, 2026 to January 17, 2027.
How the math works
- Sales tax is your sale price plus the shipping you charge, times the tax rate, rounded to the cent. The marketplace collects it, so it’s never in your payout, but some platforms charge their fee on it.
- Each fee line (final value fee, per-order fee, processing, listing fee and so on) follows that platform’s published rule and is rounded to the cent on its own, half-cents up. eBay’s own trading-card example works out to $1,054.545, which eBay rounds up to $1,054.55, and so do we.
- Tiered rates: where a platform charges a rate only on the part of the price inside a band (eBay’s $7,500 line), we do the same. Where the whole amount switches rate at a threshold (eBay handbags at $2,000), the whole amount switches.
- Payout is what the buyer pays you for the item and shipping, minus the fees. On Poshmark the buyer pays Poshmark for the label, so shipping isn’t part of it.
- “You keep” is the payout minus your shipping label and what you paid for the item. If you leave the label cost blank, we assume it equals the shipping you charged.
- Fee rate is total fees divided by the item price plus the shipping you charged.
- Monthly and yearly totals multiply one sale, worked out to the cent, by your number of sales; a year is 12 months. eBay’s $0.35 insertion fee is added for listings past the 250 free ones each month.
- Price and walk-away finders check every cent, not just whole dollars, because fees can step up (Poshmark at $15, eBay’s per-order fee above $10). They report the lowest price that hits your target, and warn you when a slightly higher price misses it.
- Blank or negative inputs count as $0. Everything runs in your browser; nothing you type is sent anywhere.
How the calculators are tested
- Every build runs 95 automated tests. A failing test stops the deploy.
- Where a marketplace publishes a worked example, the calculator must match it to the cent. eBay’s $400 Buy It Now example (fees $58.06) and $9,500 trading card example ($1,054.55), and Whatnot’s $10 item example ($0.80 commission) are all in the suite.
- Where there’s no official example, tests check the published formula (marked FORMULA in the code), plus the edges: Poshmark’s $2.95 under $15 and 20% from $15, eBay’s $10 per-order line, and the price finders against a brute-force check of every cent.
- Other tests make sure every page shows its checked date and links an official source, that product cards stay within two per calculator, and that outside links open in a new tab.
- Before each release we check the changed pages on phones 360, 390 and 430 pixels wide for sideways scrolling, cut-off text and small tap targets.
How often we re-check
We re-check every fee at least monthly against the marketplaces’ own pages, as the About page says. The last full check was , so the next is due by . When a fee changes, the calculator, the dates on every page and the fee change log are updated in the same release.
What the calculators don’t cover
- Non-US sellers, currency conversion and international fees.
- Promotions, ads and boosts we don’t list (eBay Promoted Listings, Etsy Ads and Offsite Ads, Whatnot Boost), and optional listing upgrades.
- Seller-level discounts or surcharges: eBay Top Rated and below-standard rates, eBay Store subscription rates, Whatnot custom rates and the Premier Shop discount.
- Refunds, returns, chargebacks, and instant-payout or transfer fees.
- Poshmark shipping discounts and label upgrades on the main Poshmark calculator (the offer calculator includes shipping discounts).
- Whatnot giveaways: the fee on a $0 order is shown two ways, both unconfirmed.
- Income tax. Nothing here is tax, legal or financial advice; your marketplace statement is the final word.
Found a mistake?
Email contact@soldsplit.com with a link to the official page, and we’ll check it.