The $6 Billion Question

Amazon.com Inc. (AMZN) might be preparing for a messy divorce with the U.S. Postal Service, and the financial fallout could be brutal for the federal agency. The e-commerce giant is Amazon's largest customer by far, pumping an estimated $6 billion annually into USPS coffers. That's not pocket change—it represents roughly 7.5% of the postal service's entire revenue base.

The trouble started when USPS decided to hold a reverse auction, inviting companies to bid on mail facility access. Amazon wasn't thrilled about this approach, and now the relationship that has defined package delivery for years is hanging by a thread. The current contract expires on October 1, 2026, and negotiations over a four-year extension have hit serious roadblocks over rates and terms.

Amazon spokesperson Steve Kelly told The Washington Post that USPS remains "a long-standing and trusted partner" and that Amazon wants to extend the partnership and increase spending with the agency. But behind the diplomatic language, Amazon is reportedly preparing contingency plans to expand its own nationwide delivery network if talks fall apart.

A Postal Service Already on Shaky Ground

Losing Amazon would be catastrophic for an agency already bleeding money. The Postal Service has posted annual losses in nine of the last ten years, racking up billions in red ink. Congress had to step in with financial assistance in 2022 just to keep things running.

And here's where it gets politically interesting: President Donald Trump has never been shy about his opinions on the USPS-Amazon relationship. During his first term, he famously called the Postal Service Amazon's "delivery boy" and labeled the agency "a joke." He even threatened to block emergency funding during the COVID-19 pandemic unless USPS raised its rates on Amazon.

Many observers saw Trump's push to double Amazon's rates as a way to punish then-CEO Jeff Bezos, who owned The Washington Post and was viewed as a Trump adversary at the time. The dynamics have shifted somewhat—Bezos attended Trump's recent inauguration and appears to be taking a friendlier stance in the second term. Trump has also floated ideas about privatizing the Postal Service or merging it with the Commerce Department.

The Bigger Picture for Package Delivery

If Amazon walks away from USPS, the ripple effects could reshape the entire shipping sector. The Postal Service currently prioritizes large shippers like Amazon, but it's now considering a strategic pivot toward regional shippers and smaller retailers. That might sound good for the little guys, but it could cost USPS its biggest revenue source.

For Amazon, expanding its delivery network would solidify its dominance over yet another piece of the e-commerce puzzle. And it wouldn't just pressure USPS—United Parcel Service Inc. (UPS) and FedEx Corp. (FDX) would feel the squeeze too.

Amazon's history with the major shipping companies has been rocky. It ended a partnership with FedEx back in 2019, though the two rekindled their relationship earlier this year after UPS said it would reduce Amazon deliveries. Amazon has shown it's willing to cut ties with shipping partners when necessary, and if it can handle everything in-house, why wouldn't it?

The company already runs a massive network of independent contractors and gig workers handling last-mile deliveries to customers' doorsteps. Amazon also stores and ships merchandise for smaller retailers—a service that could expand significantly if its delivery capabilities grow.

What Happens Next

The clock is ticking toward that October 2026 contract expiration. If Amazon and USPS can't agree on terms—particularly around rates and facility access—we could see Amazon dramatically accelerate its logistics buildout. That would mark a major milestone: the moment when America's dominant e-commerce platform became completely self-sufficient on delivery.

For the Postal Service, losing Amazon would mean scrambling to replace 7.5% of its revenue while already operating deep in the red. For UPS and FedEx, it would mean watching a major customer potentially disappear while simultaneously facing competition from Amazon's expanding delivery network.

The irony? Trump's old "delivery boy" jab might become reality in reverse—instead of USPS serving Amazon, we could see Amazon rendering the postal service increasingly irrelevant for package delivery.