Compare your profit across every marketplace — after platform fees AND estimated tax. The profit calculator competitors don't have.
The problem: Every reseller profit calculator shows you what you made after platform fees. None show what you keep after taxes. A reseller who "made" $20,000 in profit on eBay last year actually kept ~$14,000 after self-employment tax and income tax — but no tool told them that. The IRS 1099-K threshold drops to $600 in 2026, meaning millions of casual sellers will owe taxes for the first time.
This tool gives you: true profit after platform fees AND taxes, across eBay, Poshmark, Mercari, FB Marketplace, Depop, Etsy, and Amazon — side by side. See which platform actually pays you the most per item. Batch mode handles up to 20 items with sortable results and aggregate tax estimates.
| # | Item Name | Buy $ | Sell $ | Platform | Ship $ |
|---|
| Platform | Fee Structure |
|---|---|
| eBay | 13.25% final value fee + $0.40 per order |
| Poshmark | Flat $2.95 under $15, 20% over $15 |
| Mercari | 10% selling fee |
| FB Marketplace | 5% (minimum $0.40) |
| Depop | 10% selling fee |
| Etsy | 6.5% transaction + $0.20 listing + 3% + $0.25 payment processing |
| Amazon (Individual) | $0.99 per item + ~15% referral fee |
Disclaimer: This calculator provides estimates for educational purposes only. It is not tax, legal, or financial advice. Platform fee calculations use simplified models and may not reflect all seller-level discounts, promotions, or category-specific rates. Tax estimates use marginal rate approximations. Actual liability may differ. Always consult a qualified tax professional for advice specific to your situation.