Fee reality check
Compare marketplace and payment fees before assuming a product is profitable.
Seller tools
Seller Tools for Marketplace Fees, Profit, and Pricing Decisions
Check whether a product still makes money after platform fees, payment processing, shipping, ads, and taxes before you list it.
Built for Amazon, eBay, Etsy, Shopify, marketplace, and handmade sellers. Inputs stay local unless a tool clearly says otherwise.
What can this collection help you decide?
This reproducible scenario table shows how hypothetical marketplace fee rates change estimated net profit at four sale prices when product cost and seller-paid shipping assumptions stay fixed. It is a planning comparison, not a statement of any platform’s current fee schedule.
Explore the reproducible Marketplace Seller Fee Scenario Benchmark →
Modeled default comparison
Compare marketplace fee calculator defaults
| Platform | Fee calculator | Typical modeled inputs | What it helps you decide |
|---|---|---|---|
| Amazon | Open Amazon fee calculator | Referral percentage + fulfillment + storage/other + product cost + inbound shipping | $35 sale: $10.75 modeled Amazon fees; $12.75 contribution profit |
| eBay | Open eBay fee calculator | Final-value and promoted percentages on price + shipping charged, plus per-order fee, item cost, and shipping cost | $110 revenue: $14.88 displayed platform fees; $42.13 estimated profit |
| Etsy | Open Etsy fee calculator | Listing + transaction + payment percentage/fixed + optional offsite ads + product and shipping costs | $30 revenue: $3.30 displayed Etsy fees; $17.70 estimated profit |
| Shopify | Open Shopify fee calculator | Payment percentage/fixed + product + shipping + advertising + allocated platform/app cost | $100 revenue: $3.20 payment fees; $39.80 estimated order profit |
These examples use the calculators' modeled defaults and editable assumptions. They are not a current-fee guarantee; verify the current platform policy and account-specific terms.
Decision support
Use these tools before money changes hands
Price the listing
Back into margin, markup, shipping, ad spend, and tax assumptions before publishing.
Run the seller admin
Use invoice, tax, and late-fee tools around the sale so operations do not eat the margin.
Tool cluster
Recommended tools
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Trust model
Useful pages, not thin pages
These collections group existing tools around real decisions. The calculators keep assumptions visible, link to related tools, state important limitations, and point toward quality evidence so you can verify inputs before relying on a result.
FAQ
Common questions
Do the fee calculators guarantee exact platform fees?
No. Platforms change fee schedules. The tools expose editable assumptions so you can compare scenarios and verify against the current platform policy.
Which seller calculator should I start with?
Use the platform-specific calculator first, then check profit margin and payment fees to stress-test the result.
What costs are easiest to miss?
Advertising, returns, shipping adjustments, packaging, payment processing, taxes, and account-specific fee tiers can materially change profit.