Multi-Platform Profit & Fee Calculator

Instantly calculate exact fees, net profit, and profit margin across top seller platforms before you buy or list.

eBay Fee & Profit Settings

13.25% + $0.30
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Net Profit Breakdown

Estimated Net Profit
$21.08
Margin 42.2%
ROI 140.5%
Break-Even $25.32
Total Gross Revenue $50.00
Platform & Payment Fees -$6.93
Item Cost of Goods -$15.00
Shipping & Packaging -$7.00

๐Ÿ“Š Cross-Platform Comparison

See what your exact item makes across all marketplaces simultaneously

Platform Platform Fees Take-Home Profit Profit Margin ROI

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Frequently Asked Questions

Everything you need to know about online seller fees & margins

How are eBay seller fees calculated?

Most standard eBay categories charge a Final Value Fee of 13.25% of the total amount of the sale (item price + shipping charged + sales tax) plus a $0.30 fixed fee per order.

What are Etsy's transaction and listing fees?

Etsy charges a $0.20 listing fee per item, a 6.5% transaction fee on the sale price and shipping, and a 3% + $0.25 payment processing fee in the US.

How does Poshmark fee structure work?

Poshmark takes a flat $2.95 fee on sales under $15. For sales of $15 or more, Poshmark takes a flat 20% commission, and the buyer pays for shipping.

What is the difference between Margin and ROI?

Profit Margin is net profit divided by total revenue (what percentage of every dollar is profit). ROI (Return on Investment) is net profit divided by your initial cost (how much your invested money multiplied).

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Frequently Asked Questions

Expert answers on online marketplace seller fees, profit calculations, and break-even points.

How much does eBay charge in seller fees in 2026?
For most standard categories (clothing, shoes, collectibles, electronics), eBay charges a 13.25% final value fee calculated on the total payment amount (item price + shipping charged + buyer sales tax), plus a fixed $0.30 per order insertion fee ($0.40 for orders under $10).
What are the seller fees on Mercari?
Mercari offers $0 standard selling fees for sellers. Instead, sellers pay a 2.9% + $0.50 payment processing fee when a transaction is completed, while buyers pay a dynamic marketplace service fee.
What commission does Poshmark take?
Poshmark charges a flat $2.95 fee for all sales under $15. For sales of $15 and above, Poshmark takes a flat 20% commission. Poshmark handles buyer credit card processing and provides pre-paid USPS Priority Mail labels.
How do I calculate my exact break-even sale price?
Break-even is the exact listing price where your profit is $0.00 after all platform commissions, payment processing percentages, fixed transaction fees, shipping costs, and inventory costs are subtracted. Our tool uses binary search optimization to solve your exact break-even price instantly.

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