Amazon FBA gives you access to the world's largest ecommerce marketplace and Prime shipping — but the fee structure is more complex than most new sellers realise. Amazon doesn't charge one simple percentage. Instead, you face multiple overlapping fees that together can consume 25–40% of your selling price before you've subtracted your product cost or advertising spend.

This guide breaks down every Amazon FBA fee in 2026, shows you exactly how to calculate them for your specific product, and includes a complete real-world example with a full cost breakdown.

2026 Amazon FBA fee summary
Referral fee: 8–15% (most categories 15%) · FBA fulfillment: $3.22–$8+ per unit · Monthly storage: $0.87–$2.40/cubic ft · Professional seller account: $39.99/month

Amazon Referral Fees by Category 2026

The referral fee is Amazon's main per-sale charge. It's a percentage of the total selling price and varies by product category.

Amazon Referral Fee by Category 2026
Most common product categories and their referral rates
  • Most categories (Home, Kitchen, Sports, Tools, Toys): 15%
  • Electronics: 8%
  • Personal computers: 8%
  • Clothing and accessories: 17%
  • Jewellery: 20% (with minimum referral fee)
  • Baby products: 8% for items under $10, 15% for items $10+
  • Beauty: 8% for items under $10, 15% for items $10+
  • Books, music, video: 15%

Always verify your specific category rate using Amazon's fee schedule before committing to a product. Some categories have minimum referral fees (the greater of the percentage or a flat amount per unit).

FBA Fulfillment Fees by Size Tier

Amazon's fulfillment fee covers picking, packing, shipping, and customer service for your order. It's calculated based on your product's weight and dimensions in its final packaged state.

  • Small standard (under 16 oz): $3.22–$4.18 per unit
  • Large standard (under 1 lb): $4.75–$5.42 per unit
  • Large standard (1–2 lb): $5.42–$6.32 per unit
  • Large standard (2–3 lb): $6.32–$7.17 per unit
  • Large bulky (under 1 lb): $9.61 per unit
  • Large bulky (1–50 lb): $9.61 + $0.38 per additional lb over 1 lb

Your product's "dimensional weight" matters too — Amazon calculates weight as the greater of actual weight or dimensional weight (length × width × height ÷ 139). Oversized or inefficiently packaged products pay significantly more. Optimising your packaging to reduce dimensions by even half an inch can move you into a lower fee tier.

Monthly Storage Fees

Amazon charges monthly storage fees based on the cubic footage of inventory in their warehouses. Rates are seasonal:

  • January–September: $0.87 per cubic foot
  • October–December: $2.40 per cubic foot (holiday surcharge)

A product occupying 0.05 cubic feet for 6 months at the standard rate costs $0.26 in storage — negligible per unit. But slow-moving inventory held during Q4 faces 2.76× higher storage costs. Always plan inventory levels to avoid excess stock during the holiday period.

Items stored for more than 365 days face an additional long-term storage fee of $6.90 per cubic foot per month. This should never happen with proper inventory management. Use Amazon's Inventory Health Report to identify aged stock and either run promotions or request removal.

Complete Example: $32 Kitchen Gadget

A private label silicone spatula selling on Amazon for $32:

  • Selling price: $32.00
  • Referral fee (15%): $4.80
  • FBA fulfillment fee (small standard, 0.7lb): $3.86
  • Monthly storage (0.04 cu ft × $0.87): $0.03 per month held
  • Inbound shipping to Amazon (allocated per unit): $1.20
  • Product cost (from supplier): $5.50
  • PPC advertising (ACoS 18%): $5.76
  • Total costs: $21.15
  • Net profit: $10.85
  • Net margin: 33.9%

That 33.9% margin is solid. But notice how PPC alone ($5.76) is larger than the referral fee ($4.80). Amazon sellers who don't manage advertising tightly often see their margins collapse as they scale — their ad spend grows faster than their revenue. Set an ACoS target of 15–20% and pause any keywords exceeding it.

The cost new sellers always forget
Inbound shipping — getting your inventory to Amazon's warehouse — is a real cost that must be included in your product cost calculation. Shipping from China by sea typically costs $1–$3 per unit. Air freight for urgent replenishment can be $6–$12 per unit. Forget this and every margin calculation is wrong from the start.

The FBA Profit Formula

FBA Net Profit = Selling Price − Referral Fee − Fulfillment Fee − Product Cost − Inbound Shipping − PPC Spend − Storage
FBA Net Margin % = (Net Profit ÷ Selling Price) × 100

Use our free calculator with the Amazon FBA preset (15% fee pre-loaded) to calculate this instantly. Enter your selling price, product cost plus inbound shipping in the cost field, and your average PPC spend per sale in the Ad Spend field. Add your FBA fulfillment fee to the shipping cost field for a complete picture.

How to Reduce Your Amazon FBA Fees

Optimise packaging dimensions

FBA fee tiers are based on packaged dimensions and weight. Reducing your product's packaged width by 0.5 inches or lowering weight by 0.2 oz can move it into a lower fee tier, saving $0.50–$1.50 per unit. At 500 units per month, that's $250–$750 in monthly savings.

Use Amazon's revenue calculator before sourcing

Amazon provides a free FBA Revenue Calculator tool. Before ordering your first sample, look up the specific fee for your product's exact dimensions and weight. Many sellers are surprised by fees after they've already committed to inventory.

Manage inventory turnover

Avoid holding slow-moving inventory in Amazon's warehouses. Products that sit for months accumulate storage fees and risk long-term storage surcharges. Aim for at least 2–3 months of inventory turns and use promotions to clear aged stock before the Q4 storage rate increase kicks in each October.

Target categories with lower referral fees

Electronics (8%) and some baby and beauty products under $10 (8%) have substantially lower referral fees than the standard 15%. If your product reasonably fits in a lower-fee category, the difference compounds significantly at scale.

Calculate your Amazon FBA profit instantly

Select the Amazon FBA tab in our free calculator — 15% referral fee pre-loaded. Enter your product cost, shipping, and PPC spend to see your exact margin.

Use the Free FBA Calculator →

Frequently Asked Questions

How much does Amazon FBA cost per unit in 2026?

A typical small product under 1 lb costs $3.22–$4.75 in FBA fulfillment fees plus the category referral fee (most commonly 15%). For a product selling at $30, this means approximately $4.50 in referral fee + $3.86 in fulfillment = $8.36 in Amazon fees before your product cost.

What is the difference between referral fee and FBA fee?

The referral fee is Amazon's commission on each sale — a percentage of your selling price. The FBA fee is what Amazon charges to store, pick, pack, and ship your order to the customer. Both apply to every sale. The referral fee scales with your selling price; the FBA fee is based on product size and weight.

Does Amazon charge a monthly fee for sellers?

Amazon has two selling plans. The Individual plan has no monthly fee but charges $0.99 per item sold. The Professional plan costs $39.99/month with no per-item fee. Professional is better value for sellers moving more than 40 units per month and is required to access advertising, bulk listing tools, and certain categories.

Can I sell on Amazon without FBA?

Yes — Fulfilled by Merchant (FBM) allows you to store and ship products yourself. You still pay the referral fee but avoid FBA fulfillment and storage fees. FBM can be more profitable for heavy or oversized items where FBA fees are very high, but your listings won't qualify for the Prime badge, which significantly reduces conversion rates.