Amazon FBA fees — simplified true profit
FBA sellers juggle referral % (category-dependent), FBA fulfillment (size/weight tiers), storage, returns, and PPC. ProfitLens uses a simplified preset for quick sanity checks — swap to custom fees for your SKU.
What eats margin fastest
- Referral fee — often 8–15% depending on category
- FBA pick & pack — flat + per-pound; small items ~$3–4 is common
- PPC ACoS — if TACoS is 25%, that’s a quarter of revenue gone
- Returns & remission — not in this simple calc; budget separately
Before you reorder inventory
Run your ASIN numbers through the calculator with real COGS, inbound ship to Amazon, and ad CPA per unit. If net per unit is under $5, scaling ads scales losses.
Open Amazon FBA calculator →