Understanding Amazon FBA Fees: The Complete Breakdown
Why FBA Fee Literacy Matters
Amazon FBA sellers pay a complex web of fees that can eat into margins far more than most people realize. A product that looks profitable on paper at a 40% margin might actually yield only 15% after Amazon takes its share. And that share is not a single fee but a layered collection of charges that vary by product category, size, weight, time of year, and how long your inventory sits in the warehouse.
Understanding every fee category is not optional for running a profitable FBA business. It is foundational. Sellers who do not fully grasp their fee structure consistently misprice their products, overestimate their profitability, and make poor inventory decisions. This guide breaks down every fee you will encounter as an FBA seller in 2026.
Referral Fees
Amazon charges a referral fee on every sale, calculated as a percentage of the total selling price (including the item price and any shipping or gift wrap charges). The percentage varies by product category.
Common referral fee rates:
- Most categories: 15%
- Consumer Electronics: 8%
- Personal Computers: 6%
- Automotive and Powersports: 12%
- Clothing and Accessories: 17%
- Jewelry: 20% (on the portion up to $250)
- Media (Books, Music, DVD): 15%
- Grocery and Gourmet: 8% (for items over $15) or 15% (under $15)
There is also a minimum referral fee of $0.30 per item in most categories. Amazon charges whichever is greater: the percentage-based fee or the minimum.
What sellers miss: Referral fees apply to the total price the customer pays, not just the item price. If you charge $2 for shipping on top of a $20 item, the referral fee is calculated on $22, not $20.
FBA Fulfillment Fees
These are the core fees Amazon charges for picking, packing, and shipping your products to customers. The fee depends on the product's size tier and shipping weight.
Size tiers (2026):
- Small Standard-Size: 15 x 12 x 0.75 inches or less, up to 16 oz
- Large Standard-Size: 18 x 14 x 8 inches or less, up to 20 lb
- Small Oversize: 60 x 30 x 30 inches or less, up to 70 lb
- Large Oversize: 108 inches or less on longest side, up to 150 lb
- Special Oversize: Over 108 inches or over 150 lb
Example fulfillment fees (2026 approximate rates):
- Small Standard (6 oz or less): $3.22
- Small Standard (6-16 oz): $3.40
- Large Standard (1 lb or less): $3.86
- Large Standard (1-2 lb): $4.08
- Large Standard (2-3 lb): $5.16
- Large Standard (3+ lb): $5.16 + $0.16 per additional half-pound
These fees are per unit. For a product selling 500 units per month at a $4.08 fulfillment fee, that is $2,040 per month just in fulfillment costs.
What sellers miss: Amazon uses dimensional weight for products where the dimensional weight exceeds the actual weight. The formula is (Length x Width x Height) / 139 for standard-size and / 139 for oversize. If your product is light but bulky, you could be paying a much higher fulfillment fee than expected.
Monthly Storage Fees
Amazon charges monthly storage fees based on the daily average volume (in cubic feet) of your inventory in their fulfillment centers. Rates vary by time of year and product size.
Standard-size storage (2026):
- January through September: $0.87 per cubic foot
- October through December: $2.40 per cubic foot
Oversize storage (2026):
- January through September: $0.56 per cubic foot
- October through December: $1.40 per cubic foot
What sellers miss: The Q4 rate increase is nearly 3x the rest of the year. If you have slow-moving inventory sitting in Amazon's warehouse during October through December, you are paying premium storage rates on products that are not generating proportional revenue.
Long-Term Storage Fees (Aged Inventory Surcharge)
Inventory that sits in Amazon's fulfillment centers for extended periods incurs additional surcharges:
Aged inventory surcharge (2026):
- 271-365 days: $1.50 per cubic foot (or $0.50 per unit, whichever is greater)
- 365+ days: $6.90 per cubic foot (or $0.15 per unit, whichever is greater)
These charges are assessed on the 15th of each month in addition to your regular monthly storage fees. They are designed to incentivize sellers to keep their inventory turning and remove slow-moving stock.
What sellers miss: The 365+ day surcharge is brutal. A single standard-size product occupying 0.1 cubic feet incurs about $0.69 per month in additional fees. That might not sound like much, but multiply it by 500 stranded units and you are paying $345 per month in surcharges on inventory that is not selling.
Removal and Disposal Fees
When you need to get inventory out of Amazon's warehouses, whether to send it back to yourself, liquidate it, or have Amazon dispose of it, there are fees for each option.
Removal order fees (per unit, 2026):
- Standard-size: $0.97 per unit
- Oversize: $1.98 per unit
Disposal fees (per unit, 2026):
- Standard-size: $0.75 per unit
- Oversize: $1.78 per unit
Liquidation: Amazon will liquidate your inventory through their Liquidations program, but you typically receive only 5-10% of the selling price. This is better than paying ongoing storage fees on unsellable inventory, but it should be a last resort.
What sellers miss: Removal fees can add up quickly during inventory cleanups. Removing 1,000 standard-size units costs $970. Factor this into your profitability calculations when deciding whether to send inventory to Amazon in the first place.
Inbound Placement Service Fee
When you send inventory to Amazon, they may distribute it across multiple fulfillment centers. If you want to send everything to a single location (or fewer locations), Amazon charges an inbound placement service fee.
Minimal shipment splits (single destination): $0.27 per unit (standard-size), varying for oversize
Partial shipment splits (fewer destinations): Reduced fees compared to minimal splits
Amazon-optimized splits (multiple destinations): No inbound placement fee, but you pay shipping to multiple warehouses
What sellers miss: The math depends on your shipping costs. If shipping to multiple warehouses costs you $0.15 per unit more than a single destination, but the inbound placement fee is $0.27 per unit, you save money by shipping to multiple locations. Always compare the total cost.
Additional Fees to Watch
Labeling fee: $0.55 per unit if you have Amazon apply FNSKU labels for you instead of doing it yourself.
Prep service fee: $1.00-2.20 per unit depending on the prep type (poly bagging, bubble wrap, taping, etc.) if you use Amazon's prep service.
Returns processing fee: For products in categories with free returns (Clothing, Shoes, etc.), Amazon charges a returns processing fee equivalent to the fulfillment fee when a customer returns an item.
High-volume listing fee: If you have more than 100,000 active ASINs, Amazon charges $0.001 per ASIN above that threshold.
Calculating True Profitability
Here is the complete formula for calculating true profit per unit:
Profit = Selling Price - COGS - Referral Fee - FBA Fulfillment Fee - Monthly Storage (allocated per unit) - Inbound Shipping Cost - Prep Cost - Inbound Placement Fee - PPC Cost (allocated per unit)
Most sellers calculate profitability as Selling Price minus COGS minus Referral Fee minus FBA Fee. That misses storage costs, inbound shipping, prep, placement fees, and advertising costs. On a $20 product with $5 COGS, the difference between the simplified calculation and the true calculation can easily be $2-3 per unit, which is the difference between a 25% margin and a 12% margin.
How Fee Changes Impact Your Business
Amazon adjusts their fee structure regularly, typically announcing changes in late Q4 for the following year. Even small changes compound across your entire catalog:
- A $0.10 increase in fulfillment fees across 10,000 units per month = $1,000/month or $12,000/year
- A $0.05 per cubic foot increase in storage fees across 500 cubic feet = $25/month per non-holiday month
- A 1% increase in referral fees on $100,000/month in revenue = $1,000/month
Staying on top of fee changes and recalculating your profitability when they occur is essential for maintaining healthy margins.
How SellerVault Tracks Every Fee
SellerVault automatically calculates the true profitability of every SKU by pulling every fee category directly from Amazon's reports. The platform accounts for referral fees, fulfillment fees, storage fees, prep costs, inbound shipping, placement fees, and advertising costs to give you an accurate profit per unit, margin, and ROI for every product.
When Amazon changes their fee structure, SellerVault updates the calculations automatically. You can drill down from your overall profitability to a specific SKU to see the exact fee breakdown and identify products where margins are being squeezed. The repricing module uses these true costs to set intelligent price floors, ensuring you never sell below profitability regardless of competitive pressure.
Want to see your true profitability per SKU? Start your free trial and get an accurate fee breakdown for your entire catalog, or check out our pricing to learn more.