Margin now leaves the business in instalments too small to be anybody’s job. The line item that once explained a bad quarter has been replaced by dozens of third-party charges, each sitting below the threshold that triggers ownership. Retail’s profit problem has quietly turned into an accountability problem.

The arithmetic stays dull until somebody adds it up. Amazon lifted fulfilment rates by an average of eight cents a unit in January, as Modern Retail reported, and in the same announcement revised its Buy with Prime, Multi-Channel Fulfillment, inbound placement and oversized-item charges. Jason Boyce of Avenue7Media did the multiplication: a brand shipping a thousand units a day pays nearly $29,000 more a year. Amazon calls the rise smaller than inflation and offers sellers a dashboard to track it; the dashboard measures the fee, not who in the building is meant to act on it. Eight cents needs no approval; $29,000 would once have had a committee.

Sellers put it more precisely than their advisers. “The fees have never been an issue by themselves,” Monil Kothari of Haus of Brilliance told Modern Retail, attributing the squeeze to every other expense of selling on Amazon arriving at once. He is describing a bookkeeping failure, not a pricing one.

Naming a pressure is not the same as counting it. Marketplace Pulse’s 2026 Seller Index, built from 181 merchants with more than $2 billion in combined revenue, found 49% calling marketplace fees their leading margin pressure and 47% reporting a year-on-year margin decline. Only 24% of them are cutting their Amazon exposure; 42% are growing it. Ranking is what you do when you cannot add; growing the exposure anyway is what you do when nobody has to answer for the number.

One of the heaviest charges never reaches the people who set prices. American merchants paid a record $198.25 billion in card swipe fees last year, up 5.9%, Nilson Report figures published in March by the Merchants Payments Coalition show. That cost belongs to finance; no merchandiser has seen it beside a margin plan.

Some of the costs arrive without an invoice. At a Glossy and Modern Retail leaders’ dinner reported this month, which has already given us two other stories — one on the team a room replaced and one on the memory brands now buy instead of hiring staff — executives described retailers that now expect brands to fund the marketing and staff the shop floor. “Retailers used to help brands build awareness, and now they don’t,” one said. The same table raised the cost of licensing an editorial award logo, and the affiliate commission paid on a sale that would have happened regardless.

Every remedy on offer treats this as procurement: negotiate the rate, switch the vendor, lift the price. Procurement assumes a counterparty. There are dozens now, each holding a contract nobody else in the building has read.

Tariffs, by contrast, have an owner. Sourcing reports them, the board asks after them, and somebody’s year is judged on the answer. An eight-cent placement charge gets an approver instead.

Most of these charges land in selling expense rather than cost of goods, spread across marketing, finance, operations and channel management. Each has a defender who can justify it alone. A brand can protect gross margin all year and lose the operating line.

No department is failing; the company is.

The total is already in the ledger. What is missing is anyone whose bonus depends on knowing it.