How to Calculate Amazon FBA Fees (Step by Step)
Accurate fee math prevents “profitable on paper” products that lose money after fulfillment and storage.
Fee checklist
- Referral fee — category % of selling price (chart).
- FBA fulfillment — size tier + weight (size tier guide).
- Storage — monthly and long-term (calculator).
- Returns — use your category return rate in profit math.
- PPC — planned ad spend and target ACOS (PPC estimator).
Run all fees in one place
The profit calculator includes 2026 referral, fulfillment, storage, and optional ad costs.
Open profit calculator →