Watch out for flat-rate shipping
Heavy items like winter coats or electronics can quickly erase profits if you offer free shipping without checking cubic USPS or UPS rates beforehand.
Reseller Deal Analysis
Free Reseller Profit Calculator
Calculate your net profit, profit margin, and ROI instantly across 11 selling marketplaces.
%
Custom fee percentage.
Net Seller Take-Home
$58.04
Estimated net profit after deducting purchase price, shipping, and platform fees.
68.28% MARGIN
386.93% ROI
5 STAR FLIP
Profit Math at a Glance
NET PROFIT
$58.04
PLATFORM FEE
$11.96
PROFIT MARGIN
68.28%
ROI %
386.93%
DEAL RATING
★ ★ ★ ★ ★
BEST ALTERNATIVE
FB Market ($70.00)
Profit share of sale price
68.28% profit share
Cross-Platform Audit
Compare Payout Across All Platforms
| Platform | Fee Model | Platform Fee | Net Profit | Profit Margin | ROI % |
|---|
Pro Tips
Protect every resale margin
Small fulfillment and marketplace choices can materially change the profit left after a sale.
Factor packing materials
Bubble wrap, poly mailers, tape, and boxes add $0.50 to $1.50 per shipment. Account for supply costs in your buy price targets.
Cross-list strategically
Designer fashion commands higher prices on Poshmark and Grailed compared to eBay, easily covering Poshmark's 20% flat fee structure.
Common Questions
Frequently Asked Questions
Quick answers about reseller profit, marketplace fees, margin, and ROI.
What is the difference between Profit Margin and ROI?
Profit Margin measures how much of total sale revenue you keep. ROI measures how much return you generate on your initial purchase cost. Spending $10 to make $20 net profit yields a 50% Margin, but a 200% ROI.
Does Poshmark charge shipping fees to sellers?
Poshmark charges a flat shipping rate to the buyer for packages under 5 lbs. However, sellers pay upgraded shipping fees out of earnings for packages over 5 lbs.
How do eBay final value fees work?
For U.S. non-Store and Starter sellers, eBay's most-categories baseline is 13.6% up to $7,500 plus $0.30 on orders of $10 or less or $0.40 above $10. Category tiers and the amount above $7,500 can use different rates.
Verified Data & Methodology
Reseller Calculation Integrity
Checked Aug 9, 2026
U.S. seller-fee baselines were checked against official marketplace policies on August 9, 2026. Because this page collects only the item selling price, percentage fee bases use that entered price; some marketplaces also assess buyer-paid shipping and sales tax. Optional ads, subscriptions, fee taxes, currency conversion, payout fees, and account-performance surcharges are excluded.
GAAP Net Payout Math
Follows standard retail accounting formulas to deduct cost of goods sold (COGS), outbound logistics, and marketplace commissions.
Core Marketplace Sources
eBay, Poshmark, Mercari, and Etsy's selling / processing fees.
Fashion & Live-Selling Sources
Depop, Vinted, Grailed's commission / processing fees, and Whatnot.
Local & Sneaker Sources
Facebook Marketplace, OfferUp, and StockX.