FBA cost reference · Updated May 19, 2026

Amazon FBA fee calculator.

Every 2026 Amazon FBA fee broken down, sourced, and shown in worked examples. The 5 fee categories that determine what you actually take home: referral, fulfillment, storage, inbound placement, and low inventory level. Plus the January 15 2026 base-fee increase and the April 17 2026 3.5% fuel surcharge that compressed margins for every seller mid-year.

5FBA fee categoriesreferral, fulfillment, storage, placement, low inv

3.5%Fuel surcharge addedeffective April 17, 2026

$0.78Storage Jan-Sepper cubic foot, jumps to $2.40 in Q4

The fee stack

The 5 fees every FBA seller pays in 2026.

Some fees apply to every unit. Others trigger only under specific conditions. All five matter for landed-cost math.

Fee	2026 rate	Who pays	Source
Referral fee	8% to 45% of sale price, most categories 15%	Every Amazon seller (FBA and FBM both)	Emplicit 2026 fee comparison
FBA fulfillment fee	$3.22 to $9.73+ per unit, by size tier and weight (2026 rates, post April 17 surcharge)	FBA sellers only (FBM sellers ship themselves)	AMZ Prep 2026 fees breakdown
Monthly inventory storage fee	$0.78/cu ft January through September; $2.40/cu ft October through December	FBA sellers, charged on daily-average volume in Amazon FCs	AMZ Prep 2026 fees breakdown
Inbound placement service fee	$0.21 to $0.68 per unit for standard-size, depending on number of FC splits (zero if you ship 5+ identical cartons per item)	FBA sellers, charged at receiving when Amazon splits your inbound across multiple FCs	Brandwoven 2026 fees breakdown
Low inventory level fee	Applies at the seller-FNSKU level when historical days-of-supply drops below 28 days. Now covers Small Bulky and Large Bulky in 2026. Grocery exempt.	FBA sellers whose inventory cover falls under the threshold	Brandwoven 2026 fees breakdown

Fulfillment fees by size

FBA size tiers, 2026 rates.

Amazon classifies every SKU into a size tier based on dimensions and weight. The tier sets the fulfillment-fee floor. Crossing a tier boundary on weight can add a dollar or more to every shipment. These are January 2026 base rates; add the 3.5% fuel surcharge (April 17 2026) on top.

Size tier	Typical example	FBA fulfillment fee (Jan 2026 base)
Small standard, up to 1 lb	Phone case, paperback book, small kitchen tool	From $3.22 per unit
Small standard, 1 to 2 lb	Hardcover book, small home goods, vitamins	$3.50 to $4.20 range depending on weight bracket
Large standard, up to 1 lb	Board game, larger book, mid-size apparel	$4.80 to $5.40 range
Large standard, 1 to 2 lb	Small electronics, blender base, mid-size kitchen	$5.40 to $6.20 range
Large bulky / oversize	Coffee maker, mid-size appliance, large kitchen	$7.50 to $9.73+ depending on weight
Extra-large oversize	Furniture, large appliances, fitness equipment	$15+ to several dollars per pound over base

Note: the rate ranges above are conservative summaries of the January 2026 fee tables as quoted in industry coverage (AMZ Prep, Goat Consulting, SellerEngine, Brandwoven). Amazon's full table breaks out fees by 2-ounce or 4-ounce weight intervals within each tier. The authoritative numbers for your specific ASIN live in the Seller Central FBA fee help page and the FBA Revenue Calculator inside Seller Central.

Worked examples

What FBA fees actually take out of a sale.

Two real SKU scenarios with every fee called out. Storage shown at the January-September rate; multiply by 3.08x for Q4. Add COGS, prep-center fees, and inbound shipping on top to get your true take-home.

Scenario

Small standard SKU, 12 oz, $24.99 sell price, Home and Kitchen category

Sell price

$24.99

Two material fee changes already this year.

Both compress seller margins. Both apply automatically; there is no opt-out. Sellers should reprice and rerun landed-cost math against the new rates.

January 15, 2026
Amazon increased base FBA fulfillment fees. Small standard now measured in 2-ounce intervals; Large standard in 4-ounce intervals. Tier breaks adjusted, putting more SKUs into higher fee brackets.
Source: AMZ Prep 2026 fees breakdown
January 15, 2026
Low inventory level fee shifts from parent-ASIN level to seller-FNSKU level. Small Bulky and Large Bulky now in scope. Grocery products exempt.
Source: Brandwoven 2026 fees breakdown
April 17, 2026
Amazon announced (April 2 2026) a 3.5% fuel and logistics surcharge effective April 17, 2026 on FBA fulfillment fees in US and Canada, expanding May 2 to Buy with Prime and Multi-Channel Fulfillment. Per Amazon's announcement: 'similar to other major carriers, when costs remain elevated, we implement temporary surcharges.' The reason cited was elevated fuel costs tied to the Iran conflict and the resulting jump in WTI crude past $111/barrel. Average per-unit impact in US FBA: about 17 cents.
Source: Supply Chain Dive, April 2026

The prep-center angle

How a good prep center reduces your total FBA cost.

Three concrete levers a prep center can pull that move the Amazon-fee number, not just the prep-fee number.

Avoid the inbound placement fee. Shipping 5+ identical cartons per item (Amazon-optimized splits) makes the placement fee go to zero. A prep center that consolidates your inventory into cleanly-replicated cartons can save $0.21-$0.68 per unit on every inbound, which on high-velocity SKUs is real money. Ask your prep center if they default to the 5-carton consolidation when volume supports it.
Manage your Q4 storage cliff. The October-December storage rate is 3.08x the January-September rate. A prep center that buffers non-priority inventory at their warehouse through Q3 and releases it just-in-time into Amazon FCs through Q4 saves the differential on whatever volume gets staged late. For a seller with 100 cu ft of average inventory, that differential is roughly $486/year in storage fees you don't pay.
Stay above the 28-day low-inventory threshold. The low inventory level fee applies at the seller-FNSKU level when historical days-of-supply drops below 28. A prep center that ships smaller replenishment cohorts on a tighter cadence (weekly vs. monthly) helps you stay above the threshold on more FNSKUs without overcommitting cash to inventory. Ask whether your prep center supports fast-turn replenishment shipments or expects infrequent-large-shipment cadence.

Our verified prep centers are listed with services and pricing where the operator has disclosed them. For prep-fee specifics, see our prep-center fee reference (separate page covering what prep centers themselves charge).

FAQ

Common 2026 FBA fee questions.

What are the 5 main FBA fees in 2026?

Referral fee (8-45% of sale price, most categories 15%), FBA fulfillment fee ($3.22 to $9.73+ per unit depending on size tier and weight), monthly inventory storage fee ($0.78/cu ft January-September and $2.40/cu ft October-December), inbound placement service fee ($0.21-$0.68 per unit for standard-size, often avoidable with 5+ identical cartons), and the low inventory level fee (applied at the seller-FNSKU level when historical days-of-supply drops below 28 days). The 3.5% fuel and logistics surcharge added April 17, 2026 sits on top of fulfillment fees, raising effective costs for every shipment.

How is the Amazon FBA fulfillment fee calculated?

By size tier and shipping weight. Amazon classifies items into Small Standard, Large Standard, Large Bulky, and Extra-Large Oversize. Within each tier, the fee scales by weight bracket (2-ounce intervals for Small Standard, 4-ounce intervals for Large Standard, larger steps for bulky). Small Standard up to 1 lb starts at $3.22 per unit in January 2026. Large Bulky base is $9.73 and up. The April 17 2026 3.5% fuel surcharge applies on top. Use the FBA Revenue Calculator inside Seller Central for the exact fee for your specific ASIN.

How does the inbound placement service fee work?

When you create an FBA shipment, Amazon's routing logic may split the inbound across multiple fulfillment centers to balance their network. That split costs $0.21-$0.68 per unit for standard-size items, with the exact rate depending on how minimal the split is. The way to avoid the fee entirely: select the Amazon-optimized splits option AND ship at least 5 identical cartons or pallets per item, all with the same quantity per item. For sellers with concentrated SKU mixes, this is realistic. For sellers with high SKU diversity and small order sizes, the placement fee is effectively unavoidable and should be priced into landed-cost math.

When does the Amazon storage fee jump to peak rates?

Every October through December. Storage costs $0.78 per cubic foot from January through September, then jumps to $2.40 per cubic foot from October through December, a 3.08x increase to discourage Q4 over-stocking. Sellers who stage too much inventory into Amazon FCs ahead of Q4 get hit with the higher rate on the average daily inventory volume. The avoidance strategy: keep just-in-time inventory at the prep center or a 3PL through September, then send only Q4 demand through after October 1.

What is the low inventory level fee?

A surcharge Amazon applies when your historical days-of-supply for a given seller-FNSKU drops below 28 days. As of the January 15 2026 change, it now applies at the FNSKU level rather than parent-ASIN, which means a single low-supply variation can trigger it even when sibling variations are well-stocked. The 2026 update added Small Bulky and Large Bulky to scope; grocery products are now exempt. Avoidance: maintain a 30+ day buffer at the FNSKU level for every SKU you care about.

How does the April 17 2026 fuel surcharge work?

Amazon announced on April 2, 2026 (per Supply Chain Dive) that effective April 17, a 3.5% fuel and logistics surcharge would apply to FBA fulfillment fees in the US and Canada. On May 2 2026, the surcharge expanded to Buy with Prime (US) and Multi-Channel Fulfillment (US and Canada). Amazon's quoted reason: 'similar to other major carriers, when costs remain elevated, we implement temporary surcharges,' citing the Iran conflict and WTI crude at $111+/barrel. Per-unit impact averages about 17 cents in US FBA, scaling with item size: a Small Standard SKU paying $3.22 base adds about $0.11, a Large Bulky SKU paying $9.73 base adds about $0.34. The surcharge is calculated on fulfillment fees, not on item sale price.

How do prep-center fees fit into the FBA cost stack?

Prep-center fees are paid before Amazon ever sees the inventory. They are separate from the 5 FBA fees above. A typical prep center charges per unit for receiving, inspection, FNSKU labeling, polybagging, and optionally bundling/kitting. Per-unit prep fees range from $1.00 to $2.50 depending on the prep center and SKU complexity; see our prep-fee reference for the published rates from named operators. Add prep fees plus inbound freight on top of the 5 Amazon fees to get your true landed cost.

Where is Amazon's official FBA fee calculator?

Inside Seller Central, in the FBA Revenue Calculator tool. That calculator returns the exact fee for any ASIN given your sell price and product cost; it pulls from the live fee tables and accounts for category, size tier, and current surcharges. Public unauthenticated access to the calculator is not available; you need a Seller Central account to use it. Several third-party calculators replicate the math from the same public fee tables, but they are not authoritative when fee tables change.

Related references.

The other half of cost

Prep-center fees

What prep centers themselves charge per unit. Pair with the FBA fees on this page to get true landed cost.

Open the prep-fees calculator →

Cheaper second channel

Walmart WFS facility locations + fees

WFS is generally 15% cheaper than FBA on fees. The side-by-side comparison plus the WFS facility map.

Compare WFS vs FBA →

Where fees apply

Amazon fulfillment center locations

The 86 major US Amazon FCs by region, and how inventory placement affects fee tiers.

Open the FC map →