Every FBA fee explained — referral fees, fulfillment fees, storage fees, return processing, and account costs — with a real worked example on a $25 product.
How Much Does Amazon FBA Cost? Complete Fee Breakdown 2026
Before you place an inventory order, you need to know exactly how much Amazon is going to take from each sale. The problem is that Amazon's fee structure has multiple layers — referral fees, fulfillment fees, storage fees, return fees, account fees — and each one compounds against the others. New sellers who only model the referral fee routinely discover their actual margin is 10–15 percentage points lower than projected.
This guide covers every fee category with 2026 numbers, a reference table for referral fees by category, a fulfillment fee size tier table, and a complete worked example on a $25 product so you can see exactly what lands in your pocket.
Overview: The Six Fee Categories
Amazon FBA costs fall into six categories. Most sellers are surprised to learn that fulfillment fees are often not the largest cost — referral fees and PPC spend each compete for that distinction.
- Referral fees — Amazon's commission on every sale (percentage of selling price)
- FBA fulfillment fees — Per-order cost for Amazon to pick, pack, and ship
- Storage fees — Monthly charge for inventory sitting in Amazon warehouses
- Return processing fees — Charged when customers return items in eligible categories
- Seller account fee — $39.99/month for Professional accounts
- Inbound placement service fee — Charged when Amazon distributes your inbound shipment across its network
Understanding each one prevents the most common margin calculation mistakes.
Referral Fees by Category
The referral fee is the most predictable FBA cost — it is a fixed percentage of the item's total selling price (not including shipping, if charged separately). It applies regardless of fulfillment method. You pay it on FBM orders too.
| Category | Referral Fee |
|---|---|
| Amazon Device Accessories | 45% |
| Automotive & Powersports | 12% |
| Baby Products | 8% (under $10) / 15% (over $10) |
| Beauty & Personal Care | 8% (under $10) / 15% (over $10) |
| Books | 15% |
| Camera & Photo | 8% |
| Clothing & Accessories | 17% |
| Electronics | 8% |
| Furniture | 15% (under $200) / 10% (over $200) |
| Health & Household | 15% |
| Home & Kitchen | 15% |
| Jewelry | 20% (under $250) / 5% (over $250) |
| Lawn & Garden | 15% |
| Musical Instruments | 15% |
| Office Products | 15% |
| Pet Supplies | 15% (under $10 some items) / 15% standard |
| Sports & Outdoors | 15% |
| Toys & Games | 15% |
| Video Games | 15% |
Two categories worth noting: Electronics at 8% is the lowest standard rate, which is why high-ticket electronics sellers can still profit despite intense competition. Clothing at 17% is one of the highest, which combined with high return rates in that category makes apparel challenging for most new sellers.
FBA Fulfillment Fees by Size Tier (2026)
Fulfillment fees are based on the dimensional weight and actual weight of your packaged product. Amazon uses whichever is greater. Getting your dimensions and weight right before listing is critical — even a 0.1 oz error that pushes you into the next weight tier can change your fee by $0.30–$0.80 per unit.
| Size Tier | Unit Weight | Fulfillment Fee |
|---|---|---|
| Small standard | Under 4 oz | $3.06 |
| Small standard | 4–8 oz | $3.15 |
| Small standard | 8–12 oz | $3.43 |
| Small standard | 12–16 oz | $3.58 |
| Large standard | 1–2 lbs | $4.75 |
| Large standard | 2–3 lbs | $5.40 |
| Large standard | 3–20 lbs | $7.17 + $0.16 per lb over 3 lbs |
| Large bulky | 1–50 lbs | $9.73 + $0.42 per lb over 1 lb |
| Extra-large (70 lb+) | 70–150 lbs | $89.98 + $0.83 per lb over 90 lbs |
Practical implication: A product that weighs 15.5 oz (just under 1 lb) is a large standard at $4.75. The same product at 16.5 oz is still large standard at $4.75, but if it hits 2.1 lbs it jumps to $5.40. Packaging decisions — boxes vs. poly bags, foam inserts vs. minimal packaging — can directly affect your fee tier and your annual margin.
Dimensional Weight Note
For large standard and large bulky items, Amazon calculates dimensional weight as: (length × width × height in inches) / 139. If your dimensional weight exceeds your actual weight, Amazon charges the higher of the two. Always measure your packaged product before finalizing your margin model.
Storage Fees: Regular Season vs. Peak Season
Monthly storage fees are charged on the 15th of each month for all inventory stored the previous month. The rate depends on whether you are in regular season (January–September) or peak season (October–December).
| Period | Standard Size (per cu ft) | Oversized (per cu ft) |
|---|---|---|
| January–September | $0.78 | $0.56 |
| October–December (peak) | $2.40 | $1.40 |
What this means in practice: If you have 500 units of a product that takes up 10 cubic feet total, your storage cost is $7.80/month in regular season and $24.00/month in peak season. That is manageable. But if you overstock heading into Q4 and sell through slower than expected, 200 units sitting through November and December costs $4.80 in storage — not catastrophic on its own, but combined with slow sales and high PPC spend it adds up quickly.
Aged inventory surcharge: Products stored for 181–365 days incur an additional $0.50/cu ft/month surcharge. Products stored over 365 days incur a surcharge starting at $1.50/cu ft/month. The business case for removing slow-moving inventory via liquidation or disposal is almost always better than continuing to pay aged inventory fees.
Return Processing Fees
In certain product categories, Amazon charges a return processing fee when a customer returns an item. The fee equals the fulfillment fee for that item. It applies in categories where Amazon refunds the referral fee upon return — which includes Apparel, Shoes, Handbags, Sunglasses, Jewelry, and Watches.
For a seller in Clothing with a large standard product, a return processing fee might be $4.75 per returned item. If your category has a 15–20% return rate (common in Apparel), this fee becomes a significant cost line.
Categories without return processing fees: Most general merchandise categories including Home & Kitchen, Sports & Outdoors, and Toys & Games do not have return processing fees. Customers can still return items, but Amazon does not charge you the additional per-unit fee.
Account Fee: $39.99/Month Professional Plan
A Professional seller account costs $39.99 per month, charged regardless of whether you make any sales that month. There is no per-item fee for Professional sellers (unlike the Individual plan at $0.99 per item).
The Professional plan also unlocks:
- FBA eligibility
- Amazon Advertising (Sponsored Products, Sponsored Brands)
- A+ Content / Enhanced Brand Content
- Brand Registry eligibility
- Bulk listing and inventory tools
- Promotions and coupons
At 40 or more monthly sales, the Professional plan is cheaper than the Individual plan. At any realistic FBA scale, the Professional account is a fixed cost you factor into your monthly overhead.
Annual account cost: $39.99 × 12 = $479.88/year. Spread across units sold, this is a very small per-unit cost at any meaningful volume — less than $0.05 per unit at 10,000 annual units.
Inbound Placement Service Fee
When you create an FBA shipment, Amazon may require you to send inventory to multiple fulfillment centers so it can be distributed efficiently across the network. The inbound placement service fee covers Amazon's cost for redistributing inventory when you choose to ship everything to one location.
| Size Tier | Minimal Shipment Splits (per unit) | Amazon-Optimized Placement (per unit) |
|---|---|---|
| Small standard | $0.27–$0.30 | $0.14–$0.16 |
| Large standard | $0.38–$0.54 | $0.19–$0.27 |
| Large bulky | $1.16–$1.58 | $0.58–$0.79 |
Choosing Amazon-optimized placement (sending inventory to multiple locations Amazon designates) reduces or eliminates this fee. Most sellers accept the Amazon-optimized option to minimize inbound costs, even though it requires splitting your shipment.
Complete Real Example: A $25.99 Product
Let's run the full fee calculation for a product with these characteristics:
- Selling price: $25.99
- Category: Home & Kitchen
- Product weight (packaged): 10 oz (small standard tier)
- Monthly sales: 200 units
- Average inventory held at Amazon: 60 days supply (400 units)
- Volume: 0.015 cu ft per unit
Per-unit fee calculation:
| Fee Type | Calculation | Per Unit |
|---|---|---|
| Referral fee | $25.99 × 15% | $3.90 |
| FBA fulfillment fee | Small standard 8–12 oz | $3.43 |
| Storage fee (regular season) | 400 units × 0.015 cu ft × $0.78 / 200 monthly sales | $0.02 |
| Account fee allocation | $39.99 / 200 units | $0.20 |
| Inbound placement fee | Small standard, Amazon-optimized | $0.15 |
| Total Amazon fees per unit | $7.70 |
Full margin model:
| Item | Amount |
|---|---|
| Selling price | $25.99 |
| Less: Amazon fees (above) | –$7.70 |
| Less: Landed COGS (estimated) | –$6.50 |
| Less: PPC spend (18% of revenue) | –$4.68 |
| Less: Returns cushion (3%) | –$0.78 |
| Net profit per unit | $6.33 |
| Net margin | 24.4% |
At 200 units per month, this product generates approximately $1,266 net profit per month — before any reinvestment into inventory for the next order.
The 24.4% net margin sits just below the 30% threshold recommended for first products. To improve it: negotiate COGS down to $5.50 (achievable with 500-unit orders), bring PPC to 15% at steady state (achievable by month 3), and the net margin moves to approximately 30%.
Use the FBA Profit Calculator to run your own product through this exact model with your specific numbers.
How to Reduce Your FBA Fees
Several fee categories are partially within your control.
Optimize packaging to hit the lowest weight tier. If your packaged product is 12.5 oz (small standard, $3.43 fee), switching to lighter poly bag packaging instead of a box can bring it under 12 oz, keeping the same $3.43 fee — or under 8 oz at $3.15. Small reductions in packaging weight compound across thousands of units.
Reduce storage fees by improving inventory turnover. The largest controllable storage cost is holding too much inventory. Target 45–60 days of supply at Amazon warehouses. More than 90 days of supply at peak rates is a signal to adjust your reorder quantities or run a promotion to accelerate clearance.
Use removal orders before the peak season surcharge activates. If you have slow-moving inventory heading into October, remove it before the peak season rate of $2.40/cu ft kicks in. Removal orders cost $0.97–$1.97 per unit depending on size. Compare removal cost versus the storage fees you'd pay over Q4 — removal often wins.
Choose the right size tier at product design time. If you are working with a manufacturer on a new product and have flexibility in dimensions, use Amazon's fee calculator to understand which packaging dimensions keep you in the lowest fulfillment tier. A few millimeters can mean a materially lower fee on every unit you ever sell.
Monitor your IPI score. A low Inventory Performance Index score can result in Amazon reducing your storage limits, forcing you to hold overflow inventory elsewhere and increasing your inbound shipping costs. Keep your IPI above 450 to maintain unrestricted storage.
Next Step: Model Your Fees Before You Order
The fee structure above has one practical implication: model your full fee stack before you place an inventory order, not after your product goes live and you discover the margin doesn't work.
LaunchFast includes an AI-powered margin analysis tool that pulls your product's current fee data and models total cost per unit automatically — so you see a realistic net margin number before committing to inventory.
Start with the FBA Profit Calculator to enter your own product's dimensions, selling price, and COGS and see exactly where your margin lands against every fee category covered in this guide.