Something is moving inside Amazon Seller Central, and it’s not a routine update. Multiple sources with direct knowledge of Amazon’s Selling Partner Services division say the company has been quietly testing a restructured referral fee model since at least late Q1 2026 — one that would replace the current flat-category-percentage system with a tiered structure tied to seller volume, account tenure, and fulfillment method. If the rumors hold, it could represent the most significant fee change for third-party sellers since Amazon introduced the Inventory Performance Index in 2018.
The alleged pilot is reportedly being run across select seller cohorts in the electronics, home goods, and apparel categories — three verticals where Amazon has historically competed most aggressively with its own private label inventory. Sources describe a sliding scale where sellers moving fewer than 500 units per month in a given ASIN cluster would face referral fees 1.5 to 2.5 percentage points higher than the current baseline, while sellers clearing 5,000+ units monthly would reportedly qualify for negotiated rate tiers not currently available through any public program.
“What we’re hearing is that Amazon is trying to quietly formalize what they’ve been doing with their largest strategic accounts for years — giving volume discounts on referral fees — and turn it into a systemic lever they can use to push mid-tier sellers toward FBA or off the platform entirely,” said one aggregator operations executive who asked not to be named, citing ongoing negotiations with Amazon’s strategic accounts team.
Which Seller Segments Would Take the Hardest Hit?
If the alleged restructure rolls out as described, the sellers most exposed would likely be mid-market FBM operators — those running $500K to $3M in annual Amazon revenue without the volume density to qualify for upper-tier rates. Sources say the draft model being circulated internally doesn’t exempt FBM sellers from the higher low-volume fees, effectively creating a compounding cost disadvantage versus FBA-enrolled competitors.
- FBM sellers in home and kitchen reportedly face potential referral fee increases of up to 2.2 percentage points under the draft model
- Apparel sellers with seasonal SKU spikes may not qualify for volume tiers during off-peak months, creating quarter-to-quarter fee volatility
- Electronics resellers operating thin-margin arbitrage models would see unit economics deteriorate fastest at sub-500-unit thresholds
- Brand-registered sellers with fewer than 50 active ASINs are reportedly not included in any early access tier negotiations
Carina McAllister, a veteran Amazon channel strategist at Downstream Impact, a Seattle-based Amazon agency, told Ecommerce Times she’s been fielding questions from at least four of her enterprise clients who received what appeared to be non-standard fee disclosures in their Seller Central dashboards in April. “We noticed anomalous referral fee line items on two accounts in early April. Amazon support gave us the standard canned response, but the numbers didn’t match the published fee schedule. We documented it and flagged it internally,” she said.
Is Amazon Preparing a ‘Strategic Seller’ Tier to Lock In Volume?
Separate from the fee restructure rumors, sources close to the matter say Amazon’s Marketplace Growth team has been piloting an invitation-only “Strategic Seller” designation program that would bundle preferential referral rates with enhanced Buy Box weighting, dedicated support access, and early enrollment in new ad formats within Sponsored Products. The program is allegedly modeled loosely on Amazon’s existing Vendor Central co-op structure but applied to third-party sellers for the first time at scale.
“If this is real, it’s a fundamental shift in how Amazon treats its seller ecosystem. Right now, the playing field is nominally flat. A tiered system where your fee rate depends on your volume and your relationship status creates a two-class marketplace almost overnight,” said Judd Cramer, founder of Marketplace Pulse competitor intelligence firm AMP Analytics, who confirmed he’s been tracking anomalous fee data from seller API feeds since March 2026.
Amazon has not publicly confirmed any of these programs. A spokesperson provided a statement saying: “We regularly evaluate our fee structures to ensure they reflect the value we provide to selling partners and the costs of operating our store. We don’t comment on unconfirmed internal programs.” That carefully worded non-denial has done little to quiet the speculation circulating in seller forums and aggregator back-channels.
How Are Amazon Aggregators and Roll-Ups Reacting?
The alleged restructure is landing at a delicate moment for the Amazon aggregator sector, which has spent the past 18 months executing painful portfolio rationalizations after the 2022-2024 valuation collapse. Thrasio, which emerged from bankruptcy proceedings in late 2024, is reportedly stress-testing its top 40 ASINs against the leaked fee scenarios. Perch, which was acquired by a private equity consortium in early 2025, is allegedly running similar sensitivity analyses.
Sources at two mid-sized aggregators — neither willing to be named publicly — say the internal projections are alarming. One source described a back-of-envelope calculation showing that a 2-point referral fee increase on their core home goods portfolio would erase approximately $1.8 million in annual contribution margin across roughly 60 ASINs. “We’re already operating on 12 to 15 percent adjusted EBITDA on a good month. Another two points off the top isn’t a rounding error. It’s existential for some of our weaker brands,” the source said.
- Thrasio reportedly reviewing fee sensitivity across 200+ active ASINs in its restructured portfolio
- Perch allegedly pausing two planned brand acquisitions pending clarity on fee structure changes
- Forum activity on Seller Central community boards has spiked 340% for threads tagged “referral fee changes” since May 1, per unconfirmed social listening data shared with Ecommerce Times
- At least three Amazon PPC agencies have reportedly begun adding fee-volatility contingency language to new client contracts
Could This Accelerate the Walmart Marketplace Migration?
The timing of these alleged Amazon changes has not been lost on Walmart’s marketplace team. Sources familiar with Walmart Marketplace’s seller acquisition strategy say the Bentonville giant has been actively approaching high-volume Amazon sellers with co-marketing incentives and reduced WFS onboarding fees since April — a recruitment push that appears to have accelerated in the past six weeks.
Walmart Marketplace’s VP of Seller Growth, whose role has expanded significantly following the platform’s reported 28% GMV increase in fiscal 2026, is allegedly overseeing a direct outreach program targeting Amazon sellers with $2M or more in trailing twelve-month revenue. The pitch, according to two sellers who received outreach, includes WFS fee credits worth up to $15,000 for sellers who commit to listing their full catalog on Walmart within 90 days.
“Walmart is genuinely capitalizing on the uncertainty. We got a call from their seller success team three weeks ago. The offer was real and the numbers were good. We’re not leaving Amazon — nobody is — but we’re absolutely accelerating our Walmart buildout,” said the founder of a mid-seven-figure kitchen and cookware brand who asked not to be identified by name or brand.
ChannelAdvisor — now operating as part of CommerceHub under the Rithum brand — has reportedly seen a notable uptick in multichannel migration inquiries from existing Amazon-primary clients since early May, though the company declined to provide specific figures. Linnworks similarly confirmed “increased inbound interest” in Walmart integration workflows without providing specifics.
What Are PPC and Listing Optimization Vendors Saying Internally?
The alleged fee changes are creating a secondary ripple through the Amazon software vendor ecosystem. If referral fee margins compress, sellers will face intensifying pressure to optimize every other cost lever in their P&Ls — including ad spend efficiency. Sources at two Amazon PPC platforms say their customer success teams have been fielding an unusual volume of calls about TACOS targets and breakeven ACOS recalibrations in the past 30 days.
Perpetua’s enterprise team is allegedly preparing an internal briefing document for its agency partners that models how a 1.5 to 2.5 point referral fee increase would affect TACOS breakeven thresholds across 12 product categories. Helium 10’s Adtomic team is reportedly running similar scenario modeling. Neither company would confirm or deny these preparations on the record.
What’s clear is that the seller community is operating in a state of elevated anxiety, and Amazon’s silence — deliberate or otherwise — is amplifying it. The unconfirmed fee restructure may never materialize in the form being described. Amazon has a long history of internal pilots that never see public deployment. But the mere credibility of the rumor, and the reaction it’s generating across aggregators, agencies, and competing marketplaces, suggests the structural pressure on Amazon’s third-party seller economics is very real — whether or not this specific program is.
For now, the most operationally prudent move, as several agency leaders put it privately: model your Q4 plans at current fees, build a 2-point sensitivity buffer into your margin targets, and accelerate any Walmart or eBay catalog expansion you’ve been deferring. The days of single-marketplace dependency are looking increasingly fragile.
