Understanding Amazon FBA Fees
Amazon's Fulfillment by Amazon (FBA) program handles storage, packing, shipping, and customer service—but these services come with multiple fees that can significantly impact your profitability. For 2025, Amazon has adjusted fulfillment fees with 3-5% increases across most size tiers. Understanding every fee component is essential for accurate product pricing, margin calculation, and business profitability.
Types of Amazon FBA Fees
1. Fulfillment Fees (Per Unit)
Charged every time an item sells and is shipped. Fulfillment fees vary dramatically based on product size and weight. Amazon categorizes items into Standard-Size and Oversize (Large/Extra-Large/Special Oversize).
2. Storage Fees (Monthly)
Charged per cubic foot of warehouse space used. January-September rates are lower ($0.78/cu ft for standard items), while October-December rates spike significantly ($2.40/cu ft for standard items). This is when most sellers experience storage fee shock.
3. Long-Term Storage Fee
Applied to items stored for 365+ days. For 2025, this is $6.90 per cubic foot annually ($0.575/cu ft monthly). Items between 181-365 days incur $3.45 per cubic foot annually. This is a direct incentive for Amazon to move slower inventory.
4. Removal/Disposal Fees
Charged when you request Amazon to remove unsellable inventory from their warehouses. Typically $0.50 per unit for standard items, $1.00 for oversize.
5. Referral Fees
Amazon's commission on every sale. Referral fees range from 5% to 45% depending on category (Clothing 17%, Consumer Electronics 8%, "Everything Else" 15%, etc.).
2025 FBA Fulfillment Fee Breakdown
| Product Category | Weight Range | Fee per Unit (2025) | Notes |
|---|---|---|---|
| Standard-Size | Up to 4 oz | $2.50 | Base fulfillment fee |
| Standard-Size | 4 oz - 8 oz | $2.81 | Light items benefit from low fees |
| Standard-Size | 8 oz - 12 oz | $2.92 | Sweet spot for many sellers |
| Standard-Size | 12 oz - 1 lb | $3.39 | Still affordable |
| Standard-Size | 1 lb - 1.5 lb | $4.08 | Fees increase noticeably |
| Standard-Size | 1.5 lb - 2 lb | $4.19 | Heavier items cost more |
| Standard-Size | 2 lb - 2.5 lb | $4.65 | Breaking $4 threshold |
| Standard-Size | 2.5 lb - 3 lb | $4.76 | Approaching oversize territory |
| Standard-Size | 3 lb - 20 lb | $5.64 + $0.08 per 4 oz over 3 lb | Heavy standard items |
| Large Standard | Up to 4 oz | $4.25 | Large size category starts here |
| Large Standard | Up to 20 lb | $6.92 + variable | Premium pricing |
| Oversize/Bulky | 0-50 lb | $9.61 - $54+ | Significant additional costs |
Monthly Storage Fee Schedule 2025
| Month Range | Standard-Size Rate | Oversize Rate | Notes |
|---|---|---|---|
| Jan - Sept | $0.78/cu ft | $0.35/cu ft | Low season rates |
| Oct - Dec | $2.40/cu ft | $1.20/cu ft | 3x increase during holidays! |
| Long-Term (365+ days) | $6.90/cu ft annually ($0.575/mo) | Heavy penalty for old inventory | |
Calculate Your FBA Costs
FBA Cost Calculator
Storage Fee Calculation Example
Scenario: You store 100 units of a product that's 12" × 8" × 4" (0.267 cu ft each) for the entire year:
- Total Cubic Footage: 100 × 0.267 = 26.7 cu ft
- Jan-Sept Cost: 26.7 × $0.78 × 9 months = $187.83
- Oct-Dec Cost: 26.7 × $2.40 × 3 months = $192.24
- Annual Storage: $187.83 + $192.24 = $380.07
- Per Unit Annual Storage: $380.07 ÷ 100 = $3.80 per unit
If this product sells for $20 with 15% referral fee ($3.00) and $4.65 fulfillment fee, your total fees are $7.65 per unit—before accounting for COGS and storage! This is why margin analysis is critical.
Tips to Reduce FBA Fees
- Optimize Product Weight: Aim for standard-size items under 1 lb when possible. Fees jump dramatically above 1.5 lb.
- Regular Inventory Management: Remove slow-moving items before they hit 181-day LTS thresholds. One removal fee is often cheaper than 6 months of storage fees.
- Inventory Velocity: Maintain high sell-through rates. Amazon rewards fast movers with lower potential fee adjustments and better visibility.
- Prepare for Peak Season: Store Q4 inventory efficiently. October-December storage rates are 3x higher—plan your stock arrival dates carefully.
- Monitor LTS Warnings: Seller Central shows warnings 60+ days before LTS fees apply. Remove items preemptively if they won't sell.
- Use Overstock Surcharge Tools: For items stored 22+ weeks with excessive inventory, Amazon charges surcharges up to $0.94/cu ft. Keep your shelf-facing inventory realistic.
- Mix Sales Channels: High-performing products on FBA, slower items via Merchant Fulfilled (MF) or other channels reduces storage pressure.
Hidden Fees & Surcharges
Beyond the main fees, Amazon applies several lesser-known charges:
- Overstock Surcharge: $0.30-$0.94/cu ft for items with 22+ weeks of inventory when stock exceeds reasonable sales velocity
- Dangerous Goods Surcharge: $0.50 per unit for items requiring hazmat shipping
- Disposal Fee: If you request removal of unsellable items, $0.50-$1.00 per unit applies
- Low-Price FBA Discount: Items under $10 receive $0.77 discount on fulfillment fees (small silver lining)