7 min read
Amazon FBA Unit Economics: Intro for Profit per Order
Connect FBA fee thinking to the same order-level profit structure as DTC: referral, fulfillment, storage, ads, and returns in one view.
Published: 2026-04-24
Fees that belong in the same mental model as DTC
Referral and fulfillment are variable with sales. Storage and aged inventory penalties behave more like periodic shocks — model storage as other costs when you allocate monthly.
Ads and promos
Treat sponsored products as ad cost per order when possible. Coupons and deals belong in realized selling price, not as vague marketing overhead.
Next step
Use the Amazon FBA framework page for a fuller checklist, then validate numbers against Seller Central reports for the same window.