How we verify
A fee calculator is only worth the sourcing behind it. Here is exactly where these numbers come from and what they deliberately leave out.
Where the numbers come from
Every rate on this site was read from the platform’s own published fee schedule — Stripe’s pricing page, eBay’s selling-fees help article, Etsy’s Fees & Payments Policy, and so on. Not from a blog post, not from a competing calculator, and not from memory. The fee schedules page lists all 16 with their source links.
Each platform carries the date its schedule was last read. That date is on every calculator page and in the site footer, because a fee figure with no date on it is a claim you cannot check.
The dates are checked every week, automatically
A dated rate is only worth something if the date keeps meaning something. Every Monday an automated check re-fetches all 16 source pages and confirms that the text each rate was read from is still there. If a page has changed, it is flagged for a person to re-read.
Two things that check deliberately does not do. It does not prove a rate is correct — a page can be reworded without changing a fee, or change a fee somewhere the check does not look. And it never edits a rate: scraping a number out of a page and publishing it unread is precisely the guesswork this site exists to avoid. It raises a flag; a human re-reads the schedule and updates it by hand.
One source resists it entirely. Etsy renders its per-country payment-processing table in the browser, so the 3% + $0.25 United States rate is not in the page a fetch receives. That one is re-read by hand, and it is listed as such rather than quietly skipped.
What is deliberately missing
Tax. Sales tax and VAT are collected from the buyer and remitted onward, so they never belong in a payout figure. Where a marketplace charges its fees on tax as well, the rate depends on jurisdiction in ways a single input box cannot honestly capture.
Category-specific rates. eBay prices trading cards, bullion, motors and real estate on their own schedules. The calculator uses the basic rates for most categories and says so, rather than pretending one number covers everything.
Disputes, chargebacks and refunds. These are real costs, but they are not part of the price of a completed sale, and folding an average into a per-sale figure would be inventing data.
Negotiated pricing. Most processors discount at volume. Published standard rates are the only ones that can be sourced, so those are the ones used.
Everything a given calculator omits is printed on that calculator’s own page, under the result — not buried in a footnote here.
What this site will not do
It will not tell you where to sell. The cheapest row in a comparison is not the best platform for a business, because eBay and Etsy bring you a buyer and a payment processor does not. That trade-off is a judgement about your business, and Saufee does not have the standing to make it. It prices the transaction; the decision stays yours.
Found something wrong?
Rates move without notice. If a figure here no longer matches its source, the source wins — and we would rather hear about it. Write to hello@saufee.com with the platform and the line, and it will be corrected and re-dated.