Something is moving inside Amazon’s Seller Experience and Fulfillment Pricing teams, and the aggregator community is paying very close attention. According to three sources with direct knowledge of internal Amazon seller communications, the company has been quietly testing a revised FBA fee architecture that would effectively penalize high-velocity, low-average-selling-price products — the exact SKU profile that underpins the portfolio strategies of Thrasio, Perch, Branded, and a dozen other roll-up operators who survived the 2023–2024 aggregator collapse.
The alleged restructure, which sources say has been in limited pilot since late Q2 2026, reportedly introduces a tiered surcharge system layered on top of the existing weight- and dimension-based fulfillment fees. Products with an ASP below $15 would face an additional $0.40–$0.72 per unit fee. Products in the $15–$22 range would see a $0.20–$0.35 add-on. The top tier — products above $22 ASP — would reportedly be unaffected or potentially see modest reductions as Amazon tries to attract higher-margin, branded inventory into FBA.
Amazon has not confirmed any of this publicly. A spokesperson issued a boilerplate statement saying the company “regularly evaluates its fee structures to ensure long-term fulfillment network sustainability” and declined further comment. But sources say internal seller advisory emails — distributed only to accounts enrolled in Amazon’s Strategic Account Services program — have referenced a “fulfillment cost alignment initiative” scheduled for formal announcement ahead of Q4 2026 peak prep windows.
Which Aggregators Are Most Exposed to a Low-ASP Fee Shock?
If the tiered model rolls out as described, the exposure is brutally uneven across the aggregator landscape. Brands like Perch and Branded, which have publicly repositioned around premium and mid-market private label after the 2023 reckoning, would theoretically weather the storm better. The aggregators still holding large portfolios of commodity-adjacent SKUs — think kitchen gadgets under $12, basic supplements, and generic storage accessories — are reportedly in the most precarious position.
Sources close to Thrasio say its finance team has already run multiple sensitivity models. One source, who asked not to be named, said the internal estimate is that a fee increase of $0.55 per unit on roughly 30% of Thrasio’s active SKU catalog could represent a mid-eight-figure annual EBITDA hit. “They’re not panicking, but they’re not calm,” the source said.
“Every aggregator CFO I’ve spoken to in the last six weeks has the same spreadsheet open. They’re war-gaming the exact same scenario. The question isn’t whether Amazon does this — it’s when and how steep.” — a senior advisor to multiple Amazon aggregator funds, speaking on background
Branded’s CEO, Josh Bub, reportedly held a closed-door session with his category management leads in mid-August to assess which SKUs would be candidates for price increases, FBM migration, or outright divestiture if the fee model is confirmed. Bub did not respond to a request for comment by press time.
Is Amazon Deliberately Pushing Sellers Toward Higher-ASP Products?
Reading between the lines of Amazon’s last three fee adjustment cycles — the 2022 fuel and inflation surcharge, the 2023 inbound placement fee restructure, and the 2025 low-inventory-level fee expansion — a directional thesis becomes hard to ignore. Amazon appears to be systematically repricing the cost of using FBA for commodity-tier inventory, nudging its fulfillment network toward the kind of SKU profile that generates more advertising revenue per unit shipped.
The logic is straightforward: a $45 skincare product generates far more Sponsored Product and Sponsored Brand ad revenue per transaction than a $9 silicone spatula. If Amazon can use fee architecture to reshape the inventory mix in its warehouses, it simultaneously improves fulfillment margin and grows its retail media take rate — which, as of Q2 2026, is reportedly pushing toward 28 cents of every seller-side dollar across categories.
“Amazon is essentially running a behavioral economics experiment on its seller base,” said Kiri Masters, founder of Bobsled Marketing and a longtime Amazon channel strategist, in a recent LinkedIn post that sparked significant engagement in the aggregator community. “Every fee adjustment nudges sellers toward higher-ASP, higher-margin listings. It’s not subtle anymore.”
“Amazon doesn’t need your $8 product. It needs your $8 product to become a $19 product, or it needs your warehouse slot for someone selling a $50 product. The fee structure is the message.” — Kiri Masters, Bobsled Marketing
Are Sellers Already Migrating Low-ASP SKUs to FBM or Walmart?
Multiple seller community sources — including moderators of the r/FulfillmentByAmazon subreddit and administrators in several private Facebook groups with combined membership exceeding 80,000 Amazon sellers — report a notable uptick in threads about FBM migration for sub-$15 products over the past 45 days. The timing aligns with the earliest whispers of the fee restructure circulating in seller advisory circles.
On the Walmart Marketplace side, sources at Walmart Connect say inbound seller applications in the “home, kitchen, and garden” category have accelerated meaningfully in July and August 2026, with a disproportionate share coming from existing Amazon sellers describing themselves as “channel diversification” applicants. Walmart’s seller acquisition team is allegedly running targeted outreach to Amazon sellers in exactly the ASP range most exposed to the rumored fee change.
- Jungle Scout’s Q3 2026 seller sentiment survey, shared in advance with select media partners, reportedly shows 34% of respondents saying they plan to “significantly reduce” FBA reliance for SKUs below $20 ASP within the next 12 months.
- Helium 10’s Cerebro tool has seen a spike in keyword tracking sessions for Walmart-side equivalents of Amazon search terms, according to two agency sources with access to platform analytics.
- SellerX, the Berlin-based aggregator, is reportedly accelerating its Walmart channel buildout and has added two Walmart-specific category managers since June 2026.
- Multiple 3PL operators — including ShipMonk and Whiplash — say they’ve fielded increased inbound interest for FBM fulfillment contracts specifically from sellers citing “Amazon cost uncertainty” as the driver.
What Does This Mean for Amazon PPC Strategy If Low-ASP Products Get Squeezed?
The advertising implications are potentially as significant as the fee impact. Low-ASP products already operate on razor-thin contribution margins after FBA fees, COGS, and ad spend. The agencies that specialize in Amazon PPC management for high-volume, low-ASP catalogs are quietly bracing for client attrition if the economics get worse.
Tinuiti’s Amazon practice, one of the largest managed-service Amazon advertising operations in North America, declined to comment on record about specific client impact modeling. But a source familiar with Tinuiti’s internal account review process says the team has flagged more than 40 accounts for “fee sensitivity audits” in August — an internal designation reportedly created specifically in response to the restructure rumors.
Perpetua, the Amazon PPC automation platform, has reportedly begun work on a fee-scenario modeling feature that would allow sellers to see the downstream ACoS and TACoS impact of various fee increase scenarios layered against their current bid structures. Sources say the feature is being fast-tracked for a September 2026 release ahead of peak season prep.
“If your break-even ACoS on a $12 product drops from 22% to 14% because of a fee increase, your entire keyword strategy has to change overnight. You can’t just absorb it in bids. You have to reprice, bundle, or exit.” — a senior Amazon PPC strategist at a top-10 U.S. Amazon agency, speaking on background
Is Amazon’s Timing Deliberate — And What Happens Next?
The alleged Q4 2026 announcement window strikes many in the seller community as strategically uncomfortable timing. Announcing a fee restructure ahead of peak season — when sellers are already locked into inventory positions and cannot easily rebalance their FBA footprint — would effectively trap sellers into paying the new rates through at least Q1 2027 before any meaningful operational response is possible.
This would not be the first time Amazon has used peak-season timing to its fee advantage. The 2022 fuel and inflation surcharge was introduced in April — just as sellers were finalizing Prime Day inventory orders. The 2025 low-inventory-level fee launched in March, catching sellers mid-Q2 reorder cycle.
For now, the Amazon seller community is in a watching posture. Aggregator finance teams are modeling. Agency PPC leads are preparing contingency keyword strategies. 3PL operators are quietly sharpening their FBM pitches. And Walmart’s seller acquisition team is, by multiple accounts, extremely busy returning phone calls.
Whether the fee restructure materializes exactly as described, gets softened under seller pressure, or arrives in a different form entirely, the message already circulating through the community is clear: the era of building an Amazon business on high-volume, low-ASP FBA economics is running out of road. The sellers and aggregators who adapt their SKU mix now — before the formal announcement — will have a meaningful head start on everyone who waits for the official policy update in Seller Central.
Ecommerce Times reached out to Amazon, Thrasio, Branded, Perch, SellerX, Tinuiti, and Perpetua for this report. Amazon declined to comment beyond a boilerplate statement. The remaining companies did not respond by press time. This article reflects unconfirmed reports and should not be treated as confirmation of Amazon policy changes.
