Every Amazon seller knows about referral fees and FBA fulfillment fees. Almost nobody budgets correctly for the nine other charges that stack on top of them — inbound placement fees, low-inventory-level fees, aged inventory surcharges, storage utilization surcharges, returns processing fees and more. On a typical product, these hidden FBA fees quietly shave another 3–8 points off a margin that already looked thin in the calculator. This guide lists all nine, with the current 2026 numbers, which seller behavior triggers them, and the exact report to check for each.
Amazon's 2026 fee update (effective January 15) added a wrinkle: the headline fulfillment fee rose only $0.08 per unit on average, but several of the quieter charges below got more expensive or changed how they're applied. That's exactly why an audit matters — the fee you're not watching is the one that moved.
The Nine Charges, At a Glance
| # | Fee | What triggers it | Where to check |
|---|---|---|---|
| 1 | Inbound placement service fee | Sending stock to a single location (minimal split) | Shipment creation screen; Payments report |
| 2 | Inbound defect fee | Late, missing, misrouted or non-compliant shipments | Receiving performance; Payments report |
| 3 | Low-inventory-level fee | Standard-size SKUs under ~28 days of supply | Inventory Ledger; FBA storage fee report |
| 4 | Storage utilization surcharge | High inventory volume relative to sales | Monthly storage fee report |
| 5 | Aged inventory surcharge | Units in stock 181+ days; steep tiers 271+ days | Inventory age / health report |
| 6 | Returns processing fee | High-return-rate products in eligible categories | Payments report, "Returns processing" |
| 7 | Removal & disposal fees | Removal orders and disposals | Removal order details |
| 8 | Wrong-dimension fee overcharges | Amazon re-measures your product into a heavier tier | FBA revenue calculator vs. actual charges |
| 9 | Coupon fees | Every redemption + fixed per-coupon cost | Payments report, coupon transaction lines |
1. Inbound Placement Service Fee
When you create a shipment, Amazon charges for placing your inventory close to customers. The "minimal split" option (Amazon decides, usually one location) is the expensive one; shipping to five or more identical cartons across multiple locations via Amazon-optimized splits is free. For 2026, minimal-split placement fees for standard-size items rose an average of $0.05 per unit, and large standard-size items (3–20 lb) moved into five new weight bands — so heavier products got re-banded, sometimes uncomfortably. Sellers shipping full containers to one FC pay this on every unit. Multiply by your annual inbound volume and it's rarely small.
2. Inbound Defect Fee (New Structure for 2026)
Previously, late shipments, missing shipments, abandoned freight, and misrouted inbound each carried separate charges. From 2026 these are consolidated into a single inbound defect fee, about $0.60 per unit on average. It's simpler, but it's also easier to spot — which means it's easier to fix. Ship on the delivery window Amazon assigned, label pallets correctly, and this fee should sit at zero on your settlement report. If it doesn't, your inbound process leaks money on every shipment.
3. Low-Inventory-Level Fee
If a standard-size SKU holds less than roughly 28 days of supply relative to its historical sales, Amazon charges a fee per unit sold until you restock. The logic is capacity: stockouts waste the network's planning. For 2026 the fee is now assessed at the FNSKU level rather than the parent ASIN — meaning one thin color or size variant can trigger fees even while the listing overall looks healthy. Grocery products are exempt. This is the fee most likely to surprise a seller who "runs lean on purpose." We break down the mechanics and the 4-week threshold in a dedicated guide: Amazon Low-Inventory-Level Fee Explained.
4. Storage Utilization Surcharge
Separate from monthly storage, this surcharge applies when your average inventory volume is high relative to your shipment volume and sales — Amazon's way of pricing capacity hogging. It's invisible until you reconcile your monthly storage fee report line by line. The cure is structural: faster sell-through, tranche-based restocking, and removing dead SKUs. Q4 is the classic season to trip it, precisely when rates are already at their peak ($2.40/cu ft for standard-size in Oct–Dec).
5. Aged Inventory Surcharge
Units sitting 181+ days start accruing surcharges on top of monthly storage, with painful escalation: the surcharge jumps sharply at 271 days. And the 2026 changes made the far end worse — 12–15 month stock now carries a minimum of $0.30/unit/month (or $6.90/cu ft), and 15+ month stock a new $0.35/unit/month (or $7.90/cu ft) tier, whichever is greater. On the bright side, removal/disposal fees for lightweight standard-size items dropped $0.20 in 2026 — Amazon is literally making it cheaper to get rid of the problem. Pull your inventory age report monthly and treat 150-day units as the alarm bell, not the 181-day invoice.
6. Returns Processing Fee
Products in categories with above-average return rates pay a returns processing fee on each return, while low-return-rate products in many categories pay nothing. The rate differences are large enough that return rate belongs in your product selection math, not just your customer-service math. If your category has a 10%+ return norm, model it: the fee plus refund share plus unsellable inventory is a real cost line.
7. Removal & Disposal Fees
Every removal order and disposal costs money per unit, scaled by size and weight. The trap is not the fee itself — it's letting the choice default to "disposal" on inventory that could be liquidated. At minimum, compare disposal cost against the recovery from a liquidator or a warehouse deal; on mid-priced items the spread is meaningful.
8. Wrong-Dimension Fee Overcharges
This one is not a fee — it's a billing error category. Amazon re-weighs and re-measures units at fulfillment centers, and when their measurement differs from yours, your fulfillment fee silently steps up a tier. Sellers routinely find they've been charged oversize rates on standard-size products for months. The audit: run each active ASIN through the FBA Profit Calculator, then compare its calculated fulfillment fee against actual charges on your settlement report. Any recurring gap deserves a case with Amazon and a re-measure request with your own documented dimensions.
9. Coupon Fees
Coupons cost a fixed fee per redemption plus setup — and redemptions stack fast during promotions. The 2026 update brought one mercy: the variable coupon fee is now capped at $2,000 per coupon (for coupons created after November 5, 2025), which helps you budget a big Black Friday coupon without an unbounded downside. Still, model the coupon before you launch it: discount + per-redemption fee + incremental ad spend has to clear your margin, or the "sales boost" is just buying revenue.
The 30-minute monthly audit: download your settlement report and the monthly storage/fee preview reports. For each of the nine lines above, ask one question — did this line grow this month, and can I explain it? Unexplained growth in low-inventory fees means a thin SKU; growth in placement fees means a shipment-strategy change; growth in fulfillment fees means a dimension dispute. Every leak has a fingerprint.
Free Tool: Price With the Full Fee Picture
FBA Profit Calculator
The free calculator includes referral, FBA fulfillment, and storage across 12 marketplaces with 2026 rates — plus a stress-test mode for the "what if Amazon re-measures my product" scenario. It won't replace the settlement report audit, but it makes sure the fees you know about are priced in before you set a sell price.
Open the FBA Profit Calculator →Free. No sign-up. 12 marketplaces, 2026 rates.
The Bottom Line
None of these nine fees is individually fatal. Together, on a thin-margin product, they are the difference between a 15% and a 7% net margin — and most sellers never itemize them. The 2026 changes make the audit more urgent, not less: fulfillment fees rose modestly, but placement fees, inbound defects, and aged-inventory tiers all moved in the same direction. Thirty minutes a month against the settlement report finds more profit than most PPC optimizations.