Know your profit on any marketplace
SellerSums builds free fee & profit calculators for online sellers — every fee modeled from the marketplace's real published rates, so you can price with confidence before you buy inventory.
Amazon & Etsy live in 4 countries each · eBay & Noon on the way
Why sellers use SellerSums
Real fee tables, not estimates
Every calculator models the marketplace's actual published fee structure — category rates, price tiers, minimums and surcharges — never one flat percentage.
Compare fulfillment options
See marketplace fulfillment versus shipping it yourself, side by side — like FBA vs FBM on Amazon — so the biggest per-product decision is answered at a glance.
Local rules, per country
Each marketplace and country gets its own fee schedule, currency and units — including the quirks, like Australia's missing minimum referral fee.
Updated when fees change
Every calculator shows the effective date of its fee data. When a marketplace announces changes, the tables are refreshed — no stale numbers.
Amazon fee calculators
Live nowEach calculator uses that country's own fee schedule, currency and measurement units.
Amazon.com — United States
Referral, FBA fulfillment & storage fees — FBA vs FBM compared · fees updated 2026-01-15
Amazon.ca — Canada
Referral, FBA fulfillment & storage fees — FBA vs FBM compared · fees updated 2026-01-01
Amazon.co.uk — United Kingdom
Referral, FBA fulfillment & storage fees — FBA vs FBM compared · fees updated 2026-04-17
Amazon.com.au — Australia
Referral, FBA fulfillment & storage fees — FBA vs FBM compared · fees updated 2026-06-10
Etsy fee calculators
Live nowListing, transaction, payment processing and Offsite Ads fees — with each shop country's own processing rates.
Etsy — United States
Listing, transaction, processing & Offsite Ads fees per sale · fees updated 2026-02-13
Etsy — United Kingdom
Listing, transaction, processing & Offsite Ads fees per sale · fees updated 2026-06-22
Etsy — Canada
Listing, transaction, processing & Offsite Ads fees per sale · fees updated 2026-06-22
Etsy — Australia
Listing, transaction, processing & Offsite Ads fees per sale · fees updated 2026-02-13
More marketplaces on the way
The same fee-accurate treatment is coming to more platforms. Want one sooner? Tell us on the blog.
eBay
Final value & insertion fees by category
Noon
Referral & fulfillment fees for UAE and KSA
Walmart
Referral & Walmart Fulfillment Services fees
Shopify
Payment processing & subscription costs
AliExpress
Commission & logistics cost breakdown