Why Are eBay Fees So High?
At roughly 13.6% plus a per-order fee, eBay's cut on a typical sale can feel steep, especially compared to a flat 10% on Mercari or a payment processor alone at under 4%. Three things explain most of the gap.
It's a bundle, not just a processing fee
eBay's final value fee covers payment processing, buyer and seller protection programs, and access to eBay's own marketplace and search traffic, all in one number. Running an independent online store means paying for each of those separately: a payment processor (2.9% + $0.30 is typical), fraud and chargeback protection, and your own marketing to replace the buyers eBay's search brings you for free. Compared against that full stack of costs, eBay's rate looks less like an outlier and more like a bundled price for services a seller would otherwise be assembling and paying for individually.
It used to be two separate, smaller-looking numbers
Before eBay rolled out its own Managed Payments system, sellers paid eBay's final value fee and PayPal's roughly 2.9% processing fee as two distinct line items. Splitting the cost into two smaller charges made neither one feel especially high on its own. Managed Payments merged both into a single eBay-collected fee, so the number looks bigger today even in cases where the seller's total cost didn't rise by nearly as much, it's the same money, counted differently.
It genuinely is higher than some competitors, on some items
This part isn't a framing effect, it's real. Mercari's single flat 10% rate and Poshmark's $2.95 flat fee under $15 both beat eBay's effective rate on plenty of individual sales, particularly lower-value ones where eBay's per-order fee adds a proportionally bigger bite. eBay's advantage is reach and format, a bigger buyer pool and an auction option that can push the final sale price up, which sometimes more than makes up the fee difference and sometimes doesn't. Whether eBay is actually more expensive for a specific item is a "run the numbers" question, not a "the percentage is bigger" question, since a higher fee on a higher sale price can still net you more.
What you're not paying for separately
One thing worth weighing against the headline percentage: eBay doesn't charge most sellers for listing (within the free monthly allowance), doesn't require a monthly subscription to sell at all, and includes seller protection against certain fraudulent buyers as part of the same fee. A platform that charges a lower headline percentage but bills separately for any of those would need its own total compared directly, not just its percentage.
To see exactly what eBay would take on your own sale, use the eBay fee calculator. For the category-by-category rate itself, see what percentage eBay takes or the complete fee schedule.