TL;DR Amazon FBA fees in 2026 cover three things: a per-unit fulfillment fee (based on size tier and weight), a monthly storage fee (higher October through December), and — since 2024 — an Inbound Placement Service Fee for sellers who ship to a single fulfillment center. Amazon raised average fulfillment fees by ~$0.08/unit in January 2026.
Amazon FBA fees are the per-unit charges Amazon applies when it stores, picks, packs, ships, and provides customer service for orders fulfilled through Fulfillment by Amazon. They are separate from referral fees and your selling plan subscription. The total FBA cost for a given product depends on its size tier, weight, how long it sits in storage, and how you ship inventory into the fulfillment network. |
FBA removes the logistics overhead of running your own fulfillment operation, but it does not remove the cost. For a full picture of all Amazon selling costs including referral fees and selling plan fees, see our complete Amazon seller fees guide.
What Is the Amazon FBA Fulfillment Fee?
The fulfillment fee is a per-unit charge Amazon collects every time it ships an order on your behalf. It covers picking and packing the product, shipping it to the buyer, handling customer inquiries, and processing returns.
The fee varies by size tier and shipping weight. Amazon uses the greater of actual unit weight or dimensional weight (length x width x height divided by 139 for standard-size items) when calculating the shipping weight.
2026 FBA fulfillment fee ranges (US):
Size Tier | Shipping Weight | Approximate Fee |
Small Standard | Under 4 oz | From ~$3.07/unit |
Small Standard | 4 oz — 8 oz | From ~$3.14/unit |
Small Standard | 8 oz — 12 oz | From ~$3.22/unit |
Small Standard | 12 oz — 1 lb | From ~$3.31/unit |
Large Standard | 1 lb — 2 lb | From ~$4.90/unit |
Large Standard | 2 lb — 3 lb | From ~$5.25/unit |
Large Standard | 3 lb — 20 lb | From ~$6.10 + per-lb charge |
Large Bulky | 20 lb — 50 lb | From ~$25/unit |
Extra-Large | Over 50 lb | Varies — use calculator |
Amazon raised these fees by an average of $0.08 per unit on January 15, 2026. A fuel and inflation surcharge was also updated April 17, 2026. For any specific ASIN, use the FBA Revenue Calculator in Seller Central to get the exact current fee rather than relying on published ranges.
How Does Amazon Determine Your Product’s Size Tier?
Amazon categorizes FBA products into four main size tiers. The tier determines your fulfillment fee, and landing in the wrong tier can significantly erode margin.
Size Tier | Max Dimensions | Max Weight |
Small Standard | 15″ x 12″ x 0.75″ | 16 oz |
Large Standard | 18″ x 14″ x 8″ | 20 lb |
Large Bulky | 59″ x 33″ x 33″ (or 18-37″ longest side) | 50 lb |
Extra-Large | Anything larger | Over 50 lb |
Why dimensional weight matters more than actual weight
A supplement bottle weighs 12 ounces but ships in a box measuring 8″ x 4″ x 4″. Its actual weight is 12 oz (Small Standard). Its dimensional weight is (8 x 4 x 4) / 139 = 0.92 lb (Large Standard). Amazon uses the greater value, so this product is billed as Large Standard at a higher fee rate.
Sellers who do not account for dimensional weight when sourcing products are systematically under-calculating their FBA costs. Packaging choices that reduce dimensional weight by even one tier can save $1-2 per unit at scale.
What Are Amazon FBA Monthly Storage Fees?
Period | Standard Size | Oversize |
January — September | $0.87/cubic ft | $0.56/cubic ft |
October — December | $2.40/cubic ft | $1.40/cubic ft |
The Q4 rate is nearly three times the off-peak rate. Sellers carrying slow-moving inventory into October face a significant cost spike.
Estimating storage cost for a product
A supplement bottle in an 8″ x 4″ x 4″ box occupies 0.074 cubic feet. At the off-peak rate, 500 units cost approximately $32 per month to store. At the Q4 rate, the same 500 units cost approximately $89 per month.
For aged inventory surcharges (applied after 181 and 271 days), see our guide to Amazon long-term storage fees.
What Are the New FBA Fees Introduced Since 2024?
Two fees introduced in 2024 are absent from most FBA fee guides still in circulation. Both affect margin materially.
Inbound Placement Service Fee
The Inbound Placement Service Fee applies when you ship FBA inventory to fewer fulfillment center locations than Amazon recommends. Amazon wants inventory spread geographically so it can fulfill orders quickly. When a seller ships everything to one warehouse, Amazon bears the redistribution cost.
Shipping Split | Fee Level |
Minimal split (one to two destinations) | Highest fee — Amazon redistributes inventory |
Partial split (three or more destinations) | Reduced fee |
Optimized split (Amazon-directed multi-destination) | Fee eliminated or reduced further |
As of January 2025, Amazon reduced the inbound placement fee for Large Bulky products by an average of $0.58 per unit on minimal splits. Standard-size products remain at higher rates for consolidated shipments.
Practical implication: sellers using a single prep center or shipping from one origin now need to factor inbound placement cost into margin calculations before every shipment.
Low-Inventory-Level Fee
The Low-Inventory-Level Fee applies when FBA inventory falls below Amazon’s projected demand threshold for a product over a trailing 90-day average. Amazon’s logic is that insufficient inventory forces it to fulfill from fewer, more distant locations.
The fee does not apply to new-to-FBA products (under 365 days on FBA) or products with low sales histories. Sellers running lean inventory models are most exposed.
How Do You Calculate Your Total FBA Cost Per Unit?
Add these figures for any ASIN before pricing:
- FBA fulfillment fee (from Seller Central fee preview or Revenue Calculator)
- Inbound placement fee (based on your shipping split strategy)
- Monthly storage cost (cubic feet x rate x expected weeks held)
- Aged inventory surcharge (if applicable, for inventory over 181 days)
Example — Small Standard product, selling price $19.99:
Component | Amount |
FBA fulfillment fee (Small Standard, ~8 oz) | ~$3.14 |
Inbound placement fee (minimal split, estimate) | ~$0.27 |
Monthly storage (0.02 cubic ft, off-peak) | ~$0.02 |
Referral fee (15% of $19.99) | $3.00 |
Selling plan allocation ($39.99 / 200 units) | $0.20 |
Total estimated Amazon fees | ~$6.63 |
Fees as % of selling price | ~33% |
That leaves ~$13.36 before cost of goods, advertising, and returns. See the FBA fee change log to track how these figures shift over time.
How Can You Reduce FBA Fees?
Reduce dimensional weight
Packaging that is tighter and lighter costs less to fulfill. If a product sits in the Large Standard tier because of box dimensions rather than weight, redesigning packaging to fit Small Standard can save $1-2 per unit. Review packaging whenever you reorder from a supplier.
Ship to multiple fulfillment centers
Using a partial or optimized split for inbound shipments reduces or eliminates the Inbound Placement Service Fee. Amazon’s Partnered Carrier Program provides rate-negotiated shipping to multiple destinations. For high-volume sellers, the fee saving often exceeds the additional logistics cost of split shipping.
Manage inventory age
Keep inventory turning before the 181-day aged-inventory threshold. Use removal orders on slow-moving SKUs before October to avoid carrying aged inventory through the Q4 storage rate period. See our guide to avoiding Amazon long-term storage fees for a detailed inventory management approach.
Frequently Asked Questions
What are Amazon FBA fees?
Amazon FBA fees are the charges Amazon applies per unit when it stores, picks, packs, ships, and provides customer service for FBA orders. They include a fulfillment fee (based on size tier and weight), a monthly storage fee (based on cubic feet of space used), and — since 2024 — an Inbound Placement Service Fee for sellers who ship inventory to a single fulfillment center.
How much does Amazon FBA cost per unit?
For a typical Small Standard product (under 1 lb), the FBA fulfillment fee starts at approximately $3.07-$3.31 per unit in 2026. A Large Standard product (1-2 lbs) starts around $4.90. These are fulfillment fees only — referral fees, storage fees, and inbound placement fees are additional. Use the FBA Revenue Calculator in Seller Central for the exact fee on any specific ASIN before pricing.
What changed with Amazon FBA fees in 2026?
Amazon raised average FBA fulfillment fees by approximately $0.08 per unit on January 15, 2026 — the first US fulfillment fee increase since 2024. A fuel and inflation surcharge was updated April 17, 2026. The Inbound Placement Service Fee for Large Bulky products was reduced by an average of $0.58 per unit for minimal splits in January 2025. US referral fees were not increased.
What is the Inbound Placement Service Fee?
The Inbound Placement Service Fee is charged when you ship FBA inventory to fewer fulfillment center locations than Amazon recommends. It was introduced in 2024. The fee is higher for minimal splits (one or two warehouses) and lower or eliminated for sellers who use a partial or optimized split across multiple Amazon-directed destinations. It is separate from FBA fulfillment and storage fees.
Is FBA cheaper than fulfilling orders yourself?
It depends on your product’s size, weight, and sales velocity. FBA includes storage, picking, packing, shipping, and customer service in one per-unit charge. Compact, fast-moving products often favor FBA. Slow-moving, oversize, or seasonal products may find storage costs outweigh the fulfillment savings. See our guide to FBA vs FBM fulfillment options for a full comparison.
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