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Amazon FBA Fees Explained (Updated for 2025)

Amazon FBA Fees Explained (Updated for 2025)

Table of Contents 

  1. What Are Amazon FBA Fees? 
  2. Types of FBA Fees 
    a. Fulfillment Fees
    b. Storage Fees
    c. Referral Fees
    d. Returns Processing Fees
    e. Other Miscellaneous Fees
  3. 2025 Updates to Amazon FBA Fees
  4.  Hidden Costs and Common Pitfalls
  5. Tips to Reduce FBA Costs 
  6. How SentryKit Helps You Stay on Top of Fee Changes 
  7. Conclusion 

What Are Amazon FBA Fees? 

Amazon’s Fulfilled by Amazon (FBA) program allows sellers to store products in Amazon’s fulfillment centers. Amazon picks, packs, ships, and handles customer service for these items. In return, sellers pay a variety of fees. These fees impact your profit margins—so understanding and managing them is essential to staying profitable in 2025. 

Types of FBA Fees 

Fulfillment Fees 

Charged per unit sold, these cover picking, packing, shipping, and customer service. 

  1. Standard-size items: Varies based on weight and dimensions. 
  2. Oversize items: Higher fees due to additional handling. 

Storage Fees 

Amazon charges monthly fees for storing your inventory in its fulfillment centers. 

  1. Standard storage fees: Charged per cubic foot. 
  2. Aged inventory surcharge: Additional fees apply to units stored for 181+ days. 

Referral Fees 

Amazon charges a percentage of the item’s selling price, usually 8%–15%, depending on the product category. 

Returns Processing Fees 

If you sell in categories with free returns, Amazon charges a fee for return processing—typically equivalent to the original fulfillment fee. 

Other Miscellaneous Fees 

  1. Removal fees (to return inventory back to you) 
  2. Disposal fees (to discard inventory) 
  3. Labeling & prep service fees 

2025 Updates to Amazon FBA Fees 

Amazon updates its fee structure annually. Here’s what changed in 2025: 

  1. Increased Fulfillment Fees: An average increase of 4.5% across categories. 
  2. Expanded Aged Inventory Surcharges: Now includes inventory stored over 180 days instead of 270. 
  3. New Low-Inventory-Level Fee: Sellers who frequently understock may incur additional fees. 
  4. Dimensional Weight Pricing Adjustments: Certain SKUs are now priced using dimensional weight rather than actual weight. 

Hidden Costs and Common Pitfalls 

Even experienced sellers can miss these common fee traps: 

  1. Unexpected dimensional weight charges 
  2. Fees for unplanned prep/labelling services 
  3. Penalties for stranded or unsellable inventory 
  4. Fee increases not reflected in profit calculations 

Tips to Reduce FBA Costs 

  1. Optimize packaging: Smaller, lighter packages reduce fulfillment fees. 
  2. Manage inventory levels: Avoid overstocking and aged inventory. 
  3. Use FBA calculator tools: Estimate profitability before listing. 
  4. Bundle products smartly: Reduce per-unit fees through value packs. 
  5. Track changes in real-time: Stay updated as fees evolve. 

How SentryKit Helps You Stay on Top of Fee Changes 

SentryKit monitors product changes that can impact your FBA costs, including: 

  1. Changes in product dimensions or weight 
  2. Alerts for new FBA fee rules affecting your ASINs 
  3. Inventory-level tracking to avoid aged inventory surcharges 
  4. Buy Box loss alerts that may indicate price or fee issues 

With SentryKit, you can act before small changes turn into major fee surprises. 

Conclusion 

FBA fees are an unavoidable part of selling on Amazon—but they don’t have to eat into your profits. By staying informed about 2025 fee updates and leveraging tools like SentryKit, you can protect your margins and grow sustainably. 

Want to stay ahead of Amazon fee changes? Try SentryKit's 30-day free trial today