Your profit changes by platform.
Estimate real reseller profit across Poshmark, eBay, Mercari, Depop, and Etsy — including platform fees, shipping discounts, item cost, and the manual time it takes to list and manage inventory.
Profit calculator
Platform-specific$15.98
Uses common Poshmark seller fee rules: $2.95 under $15, otherwise 20%. This is an estimate for planning, not tax/accounting advice.
Fees are platform-specific.
Poshmark, eBay, Mercari, Depop, and Etsy all take fees differently. A profitable item on one platform may be weaker on another.
Time is part of margin.
Listing, relisting, sharing, and crosslisting time quietly eats profit — especially when you do it manually every day.
Use automation where it pays.
Sidekick helps serious resellers protect time and workflow consistency across marketplaces.
More free reseller tools are on the way.
We are building calculators and planners for crosslisting ROI, marketplace expansion, listing titles, and closet health — all designed around real reseller pain points.