2026 FBA Fee Changes: What January 15 and April 17 Actually Cost You

Amazon made two material fee changes in the first four months of 2026. January 15 restructured size tiers and weight bands. April 17 added a 3.5 percent fuel surcharge on fulfillment fees. If your fee spreadsheet is still running on late-2025 rates, it is undercounting on every SKU.

Each event covered below, at the unit level, with action items at the end.

January 15: the restructuring

Four things changed on this date:

1. Size tier splits. Amazon split several standard tiers into narrower bands. Products that were comfortably in the middle of the old "large standard" tier sometimes landed in a new tier with different per-unit fees.
2. New weight bands. Fulfillment fees moved off a small number of round-number brackets (0.5 lb, 1 lb, 2 lb) onto narrower bands with bracket edges at 4 oz intervals. Products sitting at a bracket edge got pushed up.
3. Aged-inventory surcharge pulled forward by 90 days. Inventory aged 181 to 270 days now pays the aged-inventory surcharge. Before the change, the surcharge started at day 271.
4. Defect fees raised. The per-unit defect fee used to run $0.02 to $0.07. It now runs $0.32 to $5.72. A stranded-inventory or safety-defect flag on a lightweight product now costs more than the product margin.

Placement fees were not part of the January 15 changes, so the 1-FC vs split-ship tradeoff structure you ran on a December shipment still holds. The per-unit numbers changed because the fulfillment fees feeding into the placement math changed.

April 17: the fuel surcharge

A flat 3.5% surcharge was added to FBA fulfillment fees only. It does not apply to placement fees, referral fees, storage fees, or defect fees.

Sellers on the Amazon Seller Central forum responded with one version of the same reaction. Seller_pmjzX1pJzG7gF: "Temporary surcharges have a way of becoming permanent. When costs go up, sellers pay more. When costs go down, fees stay the same."

Digital Commerce 360 put the per-unit impact at $0.17 on average for US FBA. That number is the midpoint. The real range runs from $0.03 per unit on lightweight small-standard to $1.80+ per unit on heavy-bulky.

Because the surcharge applies to the fulfillment-fee row only, the 5-identical-carton path (zero placement fees) still short-circuits most of the damage for sellers who can engineer to it.

Temporary surcharges have a way of becoming permanent. When costs go up, sellers pay more. When costs go down, fees stay the same.

What each change costs per unit

All numbers below are April 17, 2026 rates (post-fuel-surcharge). Values assume a single unit; multiply by your shipment size.

Small standard, 4 oz: fulfillment $3.28, placement $0.28, total $3.56. January 15 added about $0.03 per unit vs the previous schedule. April 17 added another $0.11.

Large standard, 16 oz: fulfillment $5.69, placement $0.85, total $6.54. January 15 added $0.14 per unit. April 17 added $0.20.

Large bulky, 5 lb: fulfillment $10.73, placement $2.90, total $13.63. January 15 added $0.61 per unit. April 17 added $0.37.

At 1,000 units per month, the two events together cost a large-standard seller about $340 per month they were not paying in December. A large-bulky seller pays closer to $980.

What to actually do

1. Re-price every SKU against the current schedule before your next shipment. Our free placement-fee calculator reads the April 17 numbers straight from the database. No version drift.
2. Re-run the 1-FC vs split-ship math. The January restructuring changed the breakeven point. Some SKUs that were split-ship wins in December are now 1-FC wins, and some flipped the other way.
3. Check your catalog for size-tier near-misses. The tier split created new bracket edges. Products within 0.5 inch of a new edge after prep padding are one remeasurement away from doubling their fulfillment fee.

See the full fee schedule

Every fee schedule version we have used is pinned on the /fees page with its effective dates. Amazon changes fees multiple times per year. Shipments you saved under old schedules stay reproducible against the schedule we stamped on each result.