What Amazon charges an FBA seller
With Fulfillment by Amazon (FBA), Amazon stores your stock, packs each order and ships it. You pay for that per unit, on top of the commission every seller pays:
Profit = Price − Amazon fees − Product cost − Shipping to Amazon
- Referral fee: a percentage of the sale price, set by category. Most categories pay 15%, with a $0.30 minimum.
- Fulfillment fee: a fixed amount per unit. It depends on the size tier, the shipping weight, the price band (under $10, $10–$50, over $50) and the season.
- Fuel and logistics surcharge: 3.5% of the fulfillment fee since 17 April 2026.
- Monthly storage: per cubic foot, much higher from October to December.
- Selling plan: $39.99 a month on Professional, or $0.99 per item sold on Individual.
2026 fulfillment fees: a few common sizes
From Amazon’s 2026 US table (non-apparel, before the 3.5% surcharge):
| Size tier and weight | Non-peak, $10–$50 | Holiday peak, $10–$50 |
|---|---|---|
| Small standard, up to 2 oz | $3.32 | $3.51 |
| Small standard, 14–16 oz | $3.96 | $4.18 |
| Large standard, 12–16 oz | $4.60 | $4.89 |
| Large standard, 2.75–3 lb | $6.67 | $7.08 |
| Small bulky, first lb | $7.55 + $0.38/lb after | $8.59 + $0.38/lb after |
Items priced under $10 use a lower column. For example, $2.43 instead of $3.32 for the smallest items. Items over $50 pay a little more. Holiday peak fees apply from 15 October 2026 to 14 January 2027.
Size tiers in 2026
Amazon sorts each package by its longest, middle and shortest side and its weight:
| Tier | Max weight | Max size (inches) |
|---|---|---|
| Small standard | 16 oz | 15 × 12 × 0.75 |
| Large standard | 20 lb | 18 × 14 × 8 |
| Small bulky | 50 lb | 37 × 28 × 20, length + girth ≤ 130 |
| Large bulky | 50 lb | 59 × 33 × 33, length + girth ≤ 130 |
| Extra-large | over 50 lb or larger | anything bigger |
For every tier except small standard, the fee uses the greater of the unit weight and the dimensional weight. A light but bulky box pays like a heavier one.
Worked example: a kitchen gadget
You sell a kitchen gadget for $25 in Home & Kitchen. It ships in a 10 × 8 × 4 inch box and weighs 1.1 lb. It costs $6 to make and $0.50 to send to Amazon. It is a non-peak month, you sell 100 a month, and stock sits for about a month.
- Referral: 15% × $25 = $3.75
- Size tier: large standard. Dimensional weight is 320 ÷ 139 = 2.30 lb, which beats 1.1 lb, so the 2.25–2.5 lb band applies: $6.10
- Fuel surcharge: 3.5% × $6.10 = $0.21
- Storage: 0.185 cu ft × $0.78 = $0.14
- Professional plan: $39.99 ÷ 100 = $0.40
- Amazon fees: about $10.60 (42% of the price)
- Profit: $25 − $10.60 − $6.50 ≈ $7.90 per unit
A 10 × 8 × 3 inch box gives a dimensional weight of 1.73 lb, and the fee drops to $5.57. That saves $0.53 per unit just from packaging.
Tips for better FBA margins
- Shrink the box. Dimensional weight often costs more than the product’s real weight.
- Mind the price bands. Crossing $10 or $50 moves you to a different fee column.
- Plan for Q4. Peak fulfillment and October–December storage ($2.40 vs $0.78 per cubic foot) squeeze margins. Do not overstock early.
- Reverse mode finds the price you need for a target profit, after every fee.
- Ads come on top. If you run Sponsored Products, check your break-even ACoS with the ROAS calculator.
What is not included
Apparel fee tables, dangerous goods, inbound placement fees, low-inventory-level fees, aged inventory surcharges, returns processing, removals and the storage utilization surcharge are not included. The dimensional weight divisor of 139 is the widely published figure, but we could not confirm it on an Amazon page when we checked. Check your Seller Central fee preview before you commit to a product.
Compare other channels with the eBay fee calculator and Etsy fee calculator. If you want to sell from your own site, try the Shopify profit calculator.