Amazon FBA Fees in 2026: The Complete Cost Breakdown | Inventory Hero
·8 min readFBA Fees
Amazon FBA Fees in 2026: The Complete Cost Breakdown
Every Amazon FBA fee in 2026: referral, fulfillment, storage, and the situational fees, with current rates, a worked example, and which ones you control.
The two on every sale are the referral fee (15 percent of the sale price in most categories) and the per-unit fulfillment fee, which depends on the item's size tier and weight (for example 4.60 dollars for a large-standard item one pound or under, in the 10 to 50 dollar price band). On top of those are monthly storage, and situational fees like inbound placement, the low-inventory-level fee, and aged-inventory surcharges.
How much do Amazon FBA fees take from a sale?
For a typical standard-size item, the referral fee plus the fulfillment fee commonly take 30 to 40 percent of the sale price before you account for your product cost, freight, and storage. That is why fee math is really margin math, and why a small difference in size tier or referral category can decide whether a SKU is profitable.
Andrew Erickson is the founder of Inventory Hero. He has spent years working with Amazon FBA sellers on demand forecasting, restock planning, and the cash flow side of running a private-label brand. Inventory Hero exists because every spreadsheet-based inventory system he tried eventually broke — usually right before Q4.
The situational ones. Storage and aged-inventory surcharges shrink when you keep inventory moving; the low-inventory-level fee disappears when you maintain enough cover; inbound placement fees fall when you ship in a way that needs less Amazon trans-shipping. The referral and base fulfillment fees are fixed by your category and product dimensions.
Read article
Amazon FBA fees in 2026 come down to two charges on every sale, the referral fee and the per-unit fulfillment fee, plus monthly storage and a set of situational fees you can influence through inventory management. The short version: a referral fee of about 15 percent in most categories, a fulfillment fee set by size and weight, storage charged the whole time stock sits, and surcharges for slow or poorly managed inventory. Below is each fee with its current rate, a worked example of how they stack on one unit, and which ones you actually control.
Amazon takes a referral fee on the total sale price (item price plus shipping) for every unit sold, FBA or not. In most categories it is 15 percent, though some categories run lower or higher, and some carry a per-item minimum.1 On a 25 dollar sale at 15 percent, that is 3.75 dollars off the top before anything else. See FBA referral fees by category for the category table.
The fulfillment fee is the per-unit charge for Amazon picking, packing, shipping, and handling the order, plus customer service and returns. It is set by the item's size tier and weight, not its price. Representative 2026 base rates for items priced in the 10 to 50 dollar band:2
Size tier (example)
Base fulfillment fee
Large standard, 1 lb or under
$4.60
Large standard, 1 to 1.25 lb
$5.04
Small bulky (base)
$7.55
Large bulky (base)
$9.35
Extra-large, 0 to 50 lb (base)
$26.33
Extra-large, 50 to 70 lb (base)
$37.32
Extra-large, 70 to 150 lb (base)
$51.32
Rates are a little lower for items under 10 dollars and differ in other price bands, and the bulky and extra-large tiers add a per-pound surcharge (about 0.38 dollars a pound for bulky) above the base weight, so heavy items climb fast. This is why dimensions matter so much: the same product in slightly larger packaging can jump a size tier and cost dollars more per unit. The full tier-by-tier breakdown is in FBA fulfillment fees by size tier.
Storage is billed per cubic foot per month, and it is seasonal:3
Size
Off-peak (Jan to Sep)
Q4 peak (Oct to Dec)
Standard-size
$0.87 / cu ft / mo
$2.40 / cu ft / mo
Oversize
$0.56 / cu ft / mo
$1.40 / cu ft / mo
The charge is small per unit but constant, and the Q4 rate nearly triples, so it is slow movers and overstock held through peak that make it hurt. See FBA storage fees 2026.
The longer inventory sits, the worse storage gets, because aging stock also picks up surcharges (below). Storage is the fee that most rewards keeping inventory moving.
These are not on every unit; they are triggered by how you manage inventory, which means you can avoid most of them.
Inbound placement fee. A per-unit charge tied to how you split an inbound shipment. Send to a minimal number of locations and Amazon spreads the inventory across its network for you, but charges a placement fee; use Amazon's recommended multi-location splits and you ship to more destinations yourself, which reduces or avoids the fee. See the inbound placement fee.
Low-inventory-level fee. An extra per-unit fee on standard-size items when your historical days of supply stays too thin. Amazon's threshold has been about 28 days of historical supply (and Amazon can adjust it), because low cover makes its fulfillment less efficient.4 Keep enough cover and it disappears. See the low-inventory-level fee.
Storage utilization surcharge. A charge for holding a large volume of inventory relative to your sales, aimed at overstock. See the storage utilization surcharge.
Returns processing and removal fees. A returns-processing fee (commonly a few dollars per unit, varying by size and category) applies in higher-return categories like apparel, and can be charged even when a unit comes back unsellable; removing or disposing of stock carries its own per-unit fee.2
The pattern: the unavoidable fees are set by your category and dimensions, while the avoidable ones are set by your restock planning. Good inventory management is, in dollar terms, mostly fee avoidance.
Take a large-standard item that weighs 0.9 pounds, sells for 25 dollars, and occupies about 0.05 cubic feet:
Fee
Amount
Referral (15% of $25)
$3.75
Fulfillment (large standard, ≤1 lb)
$4.60
Monthly storage (off-peak, ~0.05 cu ft)
~$0.04
Amazon fees before product cost
~$8.39
That is roughly 34 percent of the 25 dollar sale price to Amazon before you have paid for the product, freight, or any situational fee.2 Subtract your landed cost and you have your margin. Model it in the FBA fee calculator and check profitability in the FBA profit calculator.
The 0.04 dollars of storage looks trivial, but it is one month on a fast mover, and it scales two ways that matter. It recurs every month the unit sits, so a SKU that takes three months to sell pays it three times, and in Q4 the rate nearly triples. Five hundred slow units cost roughly 20 dollars a month off-peak and over 50 in the Q4 peak, before the aged-inventory surcharge stacks on once they pass the aging threshold. Storage is cheap per unit and expensive per mistake, which is why it rewards keeping inventory moving.
Per-SKU fee preview is in the Manage Inventory and FBA revenue-calculator views in Seller Central, which show the estimated referral and fulfillment fee for each ASIN.
What you were actually charged is in the Payments reports and the monthly storage-fee report (FBA inventory reports), which itemize storage and any surcharges by SKU.
Size tier and dimensions drive the fulfillment fee, so verify Amazon's measured dimensions match your packaging; a re-measure into a higher tier is a common silent margin leak.
What Amazon owes you back. Check the FBA lost-and-damaged inventory report. Amazon reimburses for inventory it loses or damages, but the automatic credits do not always catch everything, so the report is worth auditing. See FBA reimbursements.
FBA fees are not flat across products, and past a point the per-unit fulfillment fee makes a SKU a poor fit. The rough operator thresholds: once an item passes about 20 pounds or roughly 36 inches on its longest side, the fulfillment and oversize storage fees climb enough that fulfilling it yourself (FBM) or via Seller-Fulfilled Prime often wins on margin. Thin-margin items are the other case: if the referral plus fulfillment fee already eats 40 percent of the price, there is little room left for product cost, freight, and a profit.
Total cost of ownership also includes the costs Amazon does not bill directly: inbound freight from your supplier, prep or labeling (whether Amazon's prep service or a prep center), returns handling, and the cost of the cash tied up in stock. The discipline is to model the full stack on the real dimensions before you commit to a product and its packaging, not after the first shipment arrives and the size tier surprises you. Put all of it into the FBA profit calculator so the margin you see is the margin you keep, and see landed cost vs COGS for how the upstream costs fit together.
Sourcing before modeling fees. Lock a product and packaging, then discover the size tier eats the margin. Model fees first.
Ignoring storage on slow movers. The per-unit storage fee looks tiny until a SKU sits for six months and ages into surcharges.
Letting packaging creep across a size tier. A few tenths of an inch can move a unit into a higher fee bracket. Design packaging to the tier boundaries.
Treating situational fees as fixed. The low-inventory fee, aged surcharges, and placement fees are all avoidable with better inventory management.
Amazon FBA fees in 2026 are the referral fee (about 15 percent), the size-and-weight-based fulfillment fee, monthly storage that scales with how long stock sits, and a set of situational fees you control through inventory management. Together they commonly take a third or more of the sale price before product cost, so model them per SKU before sourcing and treat inventory management as fee avoidance. For the tools, see the FBA fee and profit calculators; for the system that minimizes the avoidable fees, see restock planning.