TikTok Shop Seller Fees: What TikTok Publishes, by Market
TikTok Shop’s own seller docs, read September 8, 2026: the US referral fee, the UK commission fee, category exceptions and why your market decides.
Amazon
eBay Seller Fees Explained: Final Value, Insertion, Stores
eBay’s own fee pages, read September 8, 2026: final value fees by category, the per-order fee, insertion fees and what a Store changes.