Starting placeholders — fees change, so check each platform against your own payouts and update here. eBay AU: a private seller under $25k pays no final value fee, but the buyer sees a Buyer Protection Fee added at checkout. A business seller pays the fee themselves and the buyer sees a clean price — often worth it to avoid losing the sale. Depop AU dropped its 10% seller fee on 22 July 2026 — what's left on the seller side is payment processing only (2.6% + $0.30). Each platform has a percentage fee and a flat per-order fee; set the flat to 0 if a platform doesn't charge one.

Whatnot's charged differently to the rest: 8% commission on the item only, plus 2.9% + $0.30 processing on item + postage, plus GST on those fees. The tool combines them for you. Commission is often 0% during Whatnot promos — set it to 0 if you're in one, but 8% is the standard.