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.
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
Featured
Amazon Seller Fee Calculator
Estimate Amazon referral, fulfillment, storage, and product costs with editable assumptions.
Featured
eBay Fee and Profit Calculator
Estimate eBay selling fees, costs, profit, and margin with editable assumptions.
Featured
Etsy Fee & Profit Calculator
Estimate Etsy fees, costs, profit, and margin with editable fee assumptions.
Featured
Shopify Profit Calculator
Estimate Shopify order profit after product, shipping, payment, advertising, and platform costs.
Useful
Profit Margin and Markup Calculator
Calculate profit, margin, markup, and target selling prices from cost and revenue.
Useful
PayPal & Stripe Fee Calculator
Estimate PayPal or Stripe fees, net proceeds, or the amount to charge.
Useful
Sales Tax and VAT Calculator
Add or remove sales tax or VAT using an editable rate.
Useful
Invoice Generator
Create a simple invoice and download as PDF.
Useful
Invoice Late Fee Calculator
Estimate a simple or monthly-compounded late fee from invoice balance, rate, and overdue time.
Useful
Freelance Hourly Rate Calculator
Estimate a sustainable freelance hourly rate from income goals, expenses, taxes, and billable hours.
Useful
1099 Self-Employment Tax Calculator
Estimate federal self-employment tax and a quarterly planning amount for 1099 income.
Trust model
Useful pages, not thin pages
These hubs group existing tools around real decisions. The calculators keep assumptions visible, link to related tools, and leave room for future AdSense or sponsor modules without putting ads inside formulas or results.
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.
Can this hub support affiliates or sponsors later?
Yes, but sponsor/ad modules should stay clearly labeled and separated from calculator formulas.