There is no single Amazon fee increase that has broken anyone's business. There never is. What has happened, gradually and then suddenly, is that the cumulative fee stack on a typical FBA seller has moved enough over the last three years that the breakeven calculation for a mid-tier brand has materially shifted — and a meaningful slice of the seller base is now operating below their own internal hurdle rate without quite realizing it.

This is a numbers piece. The point is to lay out, line by line, what the 2026 fee stack actually looks like and where the breakpoints sit.

The base stack

For a typical FBA seller in a non-apparel softlines category, with an average selling price around $25, the standard fee components break down roughly like this:

  • Referral fee: 15% on most categories. This number has been stable in headline terms but the categories where Amazon takes 17% have expanded, and the rules for what counts as "shipping revenue" subject to the referral fee have tightened.
  • FBA fulfillment fee: Depends on size and weight tier. For a standard small-and-light unit, FBA fulfillment has crept from roughly $3.20 in 2022 to north of $3.80 in 2026. For oversized units, the increases have been steeper, in some cases double-digit percentage moves year-over-year.
  • Monthly storage fee: Up across the board, with the Q4 surcharge now extending into a wider November window. Long-term storage penalties on inventory aged past 180 days now kick in harder than the previous 365-day threshold.
  • Inbound placement fee. This is the newer line item that catches sellers off-guard. Amazon now charges to distribute your inventory across its fulfillment network if you don't split shipments yourself in the way Amazon wants. For sellers without sophisticated inbound logistics, this routinely adds 30-60 cents per unit.
  • Low-inventory-level fee. Introduced in 2024 and tightened since, this penalty hits sellers whose weeks-of-cover drops below Amazon's threshold. It's punitive: typically another 30-90 cents per unit on the affected SKUs.

Running the math on a $25 ASP unit

For a fairly typical mid-tier softlines seller — $25 ASP, COGS around $7, ad spend running 12% of revenue (TACoS) — the 2026 stack looks something like this on a per-unit basis:

  • Revenue: $25.00
  • Referral fee (15%): -$3.75
  • FBA fulfillment: -$3.85
  • Storage and inbound placement (allocated): -$0.50
  • COGS: -$7.00
  • Ad spend (12% TACoS): -$3.00
  • Returns reserve (8% category average, all-in cost): -$0.80

That leaves roughly $6.10 per unit, or 24% contribution margin before fixed overhead, brand marketing outside Amazon, and any allocation of corporate cost. Three years ago, the same math on the same product produced something closer to $7.50-8.00 per unit. That delta — call it $1.50-2.00 per unit — is the fee creep, and it represents 20-25% of the previous contribution margin.

For a brand doing $20M in Amazon revenue, that's roughly $1.5-2M of contribution that has migrated from the seller's P&L to Amazon's, without a single dramatic announcement.

Where the breakpoint sits

The brands that have had to reorganize their Amazon strategy in the last twelve months cluster around two profiles:

The first is mid-tier sellers with ASPs between $15 and $30 in categories where FBA fulfillment is a large percentage of the unit cost. At an $18 ASP, the same fee stack above pushes contribution margin below 15%, which for most brands is below the threshold where the channel earns its place in the portfolio.

The second is sellers carrying SKUs with high seasonality and slow-moving long tails. The combination of long-term storage fees, low-inventory-level fees on the fast movers, and inbound placement on the slow movers creates a structural penalty for product range that mid-tier brands historically relied on for category dominance.

According to sellers managing this transition, the practical responses break into three buckets: rationalizing SKU range hard (cutting 30-50% of unit count to focus FBA on the units that earn it), shifting slower movers to FBM or 3PL fulfillment to escape FBA's allocated overhead, and in some cases pulling out of Amazon entirely for SKUs where the math no longer clears.

What this means for 2026 planning

The honest read: Amazon is not going to reverse the direction of these fees. The marketplace is a mature business with a clear margin target, and the fee structure is being engineered toward that target. Sellers who plan around a 2022-era fee stack are planning to lose money.

The operators we've spoken to who are still growing profitably on Amazon in 2026 share two habits. They run the unit economics quarterly at the SKU level, not the brand level. And they treat the FBA fee schedule as a real input variable, not a rounding error. Both habits used to be optional. They are not optional any more.