Amazon lance de nouvelles cartes de crédit Prime Business et Amazon Business pour les PME

Amazon is replacing its American Express partnership with U.S. Bank and Mastercard this spring, launching two new credit cards specifically for Prime Business and Amazon Business users. This strategic pivot aims to capture higher interchange fees and integrate deeper expense management tools for SMEs, directly challenging traditional corporate card issuers by embedding financial services into the procurement workflow.

The move signals a aggressive play for the SME working capital market. By internalizing the payment rail, Amazon isn’t just selling goods; it is monetizing the float. For the millions of small business operators relying on Amazon for supply chain logistics, this shift from a rewards-heavy Amex model to a utility-focused U.S. Bank structure changes the calculus of corporate spend. It forces a re-evaluation of treasury management strategies, pushing CFOs to look beyond simple cashback percentages toward holistic expense management platforms that can reconcile these new data streams.

Amazon Business has quietly become a revenue juggernaut. While the company does not break out exact figures for the B2B vertical in every quarterly report, industry estimates place the annualized gross merchandise value (GMV) well north of $55 billion as of late 2025. That volume represents a massive pool of interchange revenue previously shared with American Express. By bringing this in-house via U.S. Bank, Amazon retains a larger slice of the transaction fee while offering a product that feels native to the platform.

The financial engineering here is precise. The new Prime Business card offers a flat 5% back on Amazon purchases, a significant jump from the previous structure, funded by the sheer volume of traffic Amazon guarantees U.S. Bank. For non-Prime members, the Amazon Business card settles at 3%. But the real value proposition isn’t the rebate; it’s the integration. The cards are designed to sync instantly with purchasing tools, automating the reconciliation process that typically drains hours from accounting departments.

This integration solves a specific friction point for mid-market firms: the lag between procurement and accounting. When a purchasing manager buys server racks or office supplies on Amazon, the data often sits siloed until the monthly statement arrives. These new cards promise to push that transaction data into ERP systems in real-time. Yet, for enterprises with complex approval hierarchies, this automation requires robust oversight. Many firms are currently engaging financial consulting groups to audit their current spend management stacks before migrating to these embedded finance solutions, ensuring that the ease of use doesn’t compromise internal controls.

The Three Strategic Shifts for SME Treasury

This isn’t merely a card reissue; it is a restructuring of how small businesses access liquidity and manage risk. The partnership between Amazon, U.S. Bank, and Mastercard introduces three distinct changes to the B2B payments landscape that treasurers must account for in their Q2 forecasting.

• Liquidity and Net Terms: Unlike consumer cards, these instruments are built to support extended payment terms. Amazon Business already offers net-30 and net-60 terms to qualified buyers. By coupling this with a credit line, the effective working capital cycle for a small retailer extends significantly. This reduces the need for external short-term financing, allowing businesses to hold cash longer—a critical advantage in a high-interest rate environment where the cost of capital remains elevated.
• Data-Driven Procurement: Mastercard’s involvement brings advanced analytics to the table. The “spend visibility” feature allows business owners to categorize expenses automatically. Instead of manual entry, the card tags purchases by department or project code at the point of sale. This granular data is essential for firms trying to optimize their supply chain logistics and identify waste in their operational expenditures.
• Risk Mitigation: Fraud protection in B2B transactions is often an afterthought until a breach occurs. With U.S. Bank underwriting the credit, the security protocols align with traditional banking standards rather than the looser constraints of some fintech neobanks. For a business moving seven figures in procurement annually, the liability shift and zero-fraud guarantees provided by a Tier-1 bank are non-negotiable.

The transition is not without friction for existing cardholders. American Express users are being grandfathered in, but the writing is on the wall: the incentives will increasingly favor the new U.S. Bank ecosystem. This is a classic “walled garden” strategy. Amazon wants to own the entire transaction lifecycle, from the search bar to the bank statement.

“We are seeing a decoupling of the ‘rewards game’ from the ‘utility game.’ Amazon understands that for a B2B buyer, a 2% cashback is nice, but automated reconciliation and extended net terms are worth far more in operational efficiency. This is embedded finance maturing beyond the hype cycle.” — Marcus Thorne, Senior Fintech Analyst, Global Market Insights

From a valuation perspective, this move bolsters Amazon’s services segment, which typically commands higher multiples than its retail arm. In the latest SEC filings, Amazon’s “Other” segment—often a proxy for advertising and third-party seller services—has shown resilient margin expansion. Adding a high-yield financial product to the mix further diversifies revenue streams, insulating the giant from retail margin compression.

For U.S. Bank, the deal is a volume play. They are sacrificing margin per transaction to acquire millions of high-quality commercial borrowers. The risk profile of an Amazon Business customer is generally lower than the average small business applicant because Amazon already possesses deep data on the seller’s or buyer’s cash flow history. This data asymmetry allows U.S. Bank to underwrite with precision that traditional lenders cannot match.

The Operational Reality for CFOs

As these cards roll out in Q2 2026, the immediate task for financial leaders is integration. The promise of “seamless” tools often masks the complexity of migrating legacy data. Businesses must ensure their accounting software can ingest the new data formats provided by the U.S. Bank API. Failure to do so results in dual-entry systems, creating more work, not less.

the shift highlights a broader trend in corporate banking: the unbundling and rebundling of services. Banks are no longer just vaults for cash; they are software providers. Amazon is no longer just a store; it is a bank. The middle ground is disappearing. Companies that fail to adapt their treasury operations to these integrated ecosystems risk falling behind on efficiency metrics.

The market is watching closely to see if the 5% reward structure holds under pressure. If inflation remains sticky and consumer spending on B2B goods softens, Amazon may have to tighten underwriting standards, potentially alienating the very SMEs they are courting. But for now, the momentum is squarely with the tech giants who control the point of sale.

As the fiscal year progresses, expect to see a wave of consolidation in the expense management sector. Smaller players who cannot compete with the data integration of Amazon/U.S. Bank will become acquisition targets. For businesses navigating this shift, the priority is clear: secure your working capital lines now and audit your vendor payment terms. The companies that win in 2026 won’t just be the ones with the best products; they will be the ones with the most efficient capital cycles. To stay ahead of these structural shifts, forward-thinking enterprises are already partnering with specialized corporate treasury management firms to stress-test their liquidity against these new payment paradigms.