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Why Understanding FBA Fees Matters
Amazon FBA fees can consume 30-45% of your selling price depending on your product category, size, and weight. Most sellers have a rough idea of their fees, but few understand the full picture — and that gap between "rough idea" and "exact number" is often the difference between a profitable product and a money-losing one.
In 2026, Amazon has adjusted several fee structures, introduced new low-inventory fees, and changed how storage fees are calculated. This guide covers every fee you need to know, with exact rates and real-world examples.
The 5 Core FBA Fees
Every FBA seller pays some combination of these five fees. Understanding each one is essential for accurate profit calculation.
1. Referral Fees
The referral fee is Amazon's commission for every sale made on the platform. It's a percentage of the total selling price (including shipping charged to the buyer). The percentage varies by category.
| Category | Referral Fee |
|---|---|
| Clothing & Accessories | 17% |
| Shoes, Handbags & Sunglasses | 15% |
| Jewelry | 20% (first $250), 5% (above $250) |
| Electronics | 8% |
| Home & Kitchen | 15% |
| Toys & Games | 15% |
| Health & Personal Care | 8% (first $10), 15% (above $10) |
| Beauty | 8% (first $10), 15% (above $10) |
| Pet Supplies | 15% |
| Sports & Outdoors | 15% |
| Books | 15% |
| Everything Else | 15% |
Key detail: The referral fee has a minimum of $0.30 per item. So even on a $1.99 product, you're paying at least $0.30 — which is effectively a 15% rate on very low-priced items regardless of category.
2. FBA Fulfillment Fees
This is what Amazon charges to pick, pack, and ship your product to the customer. It's based on the product's size tier and shipping weight. Amazon classifies products into size tiers:
| Size Tier | Dimensions | Fee Range |
|---|---|---|
| Small Standard | 15" x 12" x 0.75", up to 16 oz | $3.22 - $3.40 |
| Large Standard | 18" x 14" x 8", up to 20 lbs | $3.86 - $6.75+ |
| Small Oversize | 60" x 30", up to 70 lbs | $9.73+ |
| Medium Oversize | 108" longest side, up to 150 lbs | $19.05+ |
| Large Oversize | 108"+ longest side, up to 150 lbs | $89.98+ |
For apparel specifically, Amazon charges slightly higher fulfillment fees — typically $0.20-0.50 more per item than non-apparel in the same size tier. This is because apparel requires poly-bagging and additional handling.
Example: A standard graphic t-shirt (folded, poly-bagged) at 8 oz ships as Small Standard-Size for approximately $3.40. A hoodie at 14 oz ships as Large Standard-Size for approximately $4.25. A backpack at 1.5 lbs ships as Large Standard-Size for approximately $5.40.
3. Monthly Storage Fees
Amazon charges rent for the warehouse space your inventory occupies. Rates are based on cubic feet and vary by time of year:
| Period | Standard-Size | Oversize |
|---|---|---|
| January – September | $0.78 per cubic ft | $0.56 per cubic ft |
| October – December (peak) | $2.40 per cubic ft | $1.40 per cubic ft |
Storage fees triple during Q4 because Amazon needs warehouse capacity for holiday inventory. This means slow-moving inventory becomes extremely expensive to hold from October through December. If you have dead stock sitting in FBA during peak season, you're paying 3x the normal rate for products that aren't selling.
4. Aged Inventory Surcharge (Long-Term Storage)
Products stored in FBA for more than 181 days get hit with an additional surcharge on top of monthly storage fees:
| Age of Inventory | Surcharge |
|---|---|
| 181-210 days | $0.50 per cubic ft |
| 211-240 days | $1.00 per cubic ft |
| 241-270 days | $1.50 per cubic ft |
| 271-300 days | $3.80 per cubic ft |
| 301-330 days | $4.00 per cubic ft |
| 331-365 days | $4.20 per cubic ft |
| 365+ days | $6.90 per cubic ft or $0.15/unit (whichever is greater) |
This is Amazon's way of discouraging sellers from using FBA as cheap long-term storage. The message is clear: send what you can sell within 6 months.
5. Low-Inventory-Level Fee
Introduced in 2024 and continued into 2026, this fee applies when your historical days of supply falls below 28 days for a product. Amazon charges $0.32-0.63 per unit depending on size tier. The logic is that low inventory forces Amazon to handle more frequent, smaller shipments — and they're passing that cost to you.
The catch-22: Amazon charges you for having too much inventory (aged inventory surcharge) AND too little inventory (low-inventory-level fee). The sweet spot is maintaining 30-60 days of supply — enough to avoid the low-inventory fee but not so much that you trigger aged inventory surcharges.
Other Fees You Should Know
Inbound Placement Service Fee
When you ship inventory to FBA, Amazon may distribute it across multiple warehouses. If you want to send everything to a single location (simpler for you), Amazon charges an inbound placement fee. For standard-size items, this ranges from $0.21-0.68 per unit depending on how many destinations you're willing to ship to. Sending to the maximum number of Amazon-selected warehouses avoids this fee entirely.
Returns Processing Fee
For most categories, Amazon handles returns at no additional charge (it's built into the fulfillment fee). However, for categories with high return rates — particularly apparel and shoes — Amazon charges a returns processing fee when the category's return rate exceeds a threshold. For apparel, expect $2.00-5.00 per returned unit.
Removal and Disposal Fees
If you need to pull inventory out of FBA (removal) or have Amazon dispose of it, the fees are:
- Removal order: $0.97-1.04 per standard-size unit
- Disposal order: $0.97-1.04 per standard-size unit
- Liquidation: Amazon sells your inventory at a steep discount and keeps a portion. You receive a fraction of the recovery value.
Subscription Fee
Professional Seller account: $39.99/month. Individual Seller account: $0.99 per item sold (no monthly fee). If you're selling more than 40 items per month, the Professional plan is cheaper.
How to Calculate Your True Profit Margin
Here's the formula for calculating profit on an FBA product:
Real-World Example: Graphic T-Shirt
- Selling Price: $19.99
- COGS (product + shipping to FBA): $5.50
- Referral Fee (17% apparel): $3.40
- FBA Fulfillment Fee: $3.40
- Monthly Storage (allocated per unit): $0.12
- Advertising Cost (at 15% TACoS): $3.00
- Profit per Unit: $4.57 (22.9% margin)
Real-World Example: Backpack
- Selling Price: $34.99
- COGS (product + shipping to FBA): $12.00
- Referral Fee (15%): $5.25
- FBA Fulfillment Fee: $5.40
- Monthly Storage (allocated per unit): $0.35
- Advertising Cost (at 15% TACoS): $5.25
- Profit per Unit: $6.74 (19.3% margin)
Real-World Example: Jewelry Set
- Selling Price: $12.99
- COGS (product + shipping to FBA): $2.50
- Referral Fee (20% jewelry): $2.60
- FBA Fulfillment Fee: $3.22
- Monthly Storage (allocated per unit): $0.05
- Advertising Cost (at 15% TACoS): $1.95
- Profit per Unit: $2.67 (20.6% margin)
Our AI monitors profit margins at the SKU level in real-time, factoring in all fees, COGS, and advertising spend. When a product's margin drops below your target threshold — whether from a fee increase, a competitor price war, or rising ad costs — the system alerts you immediately with recommended actions: adjust price, cut ad spend, or negotiate better COGS.
7 Ways to Reduce Your FBA Fees
- Optimize packaging dimensions. FBA fees are based on dimensional weight. Reducing your packaging size by even 1 inch can drop you into a lower size tier and save $0.50-2.00 per unit.
- Maintain 30-60 days of supply. Stay above 28 days to avoid the low-inventory fee, and below 90 days to avoid aged inventory surcharges.
- Ship to multiple FBA warehouses. Avoid the inbound placement service fee by letting Amazon distribute your inventory across their network.
- Remove slow movers before Q4. Storage fees triple October-December. Create removal orders for dead inventory before October 1st.
- Use Subscribe & Save. Amazon offers reduced referral fees (typically 1-3% discount) for products enrolled in Subscribe & Save.
- Consider Amazon Warehousing & Distribution (AWD). For bulk storage, AWD rates are lower than standard FBA storage — useful for pre-positioning large quantities ahead of peak season.
- Reduce returns through better listings. Returns cost you the fulfillment fee plus the returns processing fee. Better size charts, accurate descriptions, and quality images reduce return rates by 15-20%.
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FBA fees are the cost of doing business on the world's largest marketplace. You can't avoid them, but you can manage them strategically. Understanding every fee, calculating margins accurately at the SKU level, and optimizing packaging, inventory levels, and ad spend is how profitable sellers stay profitable. The brands that treat fee management as an afterthought end up wondering where their margins went.