Stablecoins Are an Additive Rail. The 2025 Data Settled the Question.

The replacement framing was a reasonable read in 2021. Today’s payment data tells a different story.

For a stretch of years, the loudest claim about stablecoins was that they would displace correspondent banking. I made versions of that argument myself. But the stablecoin flows that actually moved in 2025 point somewhere else. Meta is paying creators in USDC. DoorDash is piloting stablecoin payouts to drivers onchain. Allium and BCG project 2025 B2B stablecoin payment volume in a $150-to-$230 billion range, with underlying transactions growing faster than volume. 

None of these initiatives replaced an incumbent rail. Each one extended workflows already running on cards, ACH, wires, and SWIFT, by using stablecoin settlement in the specific places where legacy rails are too expensive. They all share a similar story: capital efficiency. The need for prefunding is lowered, working capital is freed from correspondent accounts, and enables settlement wherever and whenever the business needs it. 

In my conversations with corporate finance leaders in 2026, our discussions focus on how stablecoins do their best work as additive infrastructure. The question on the treasurer's desk has shifted from whether to use stablecoins to where.

Stablecoin transactions have reached enterprise scale.

I spent 2022 explaining why stablecoins would replace correspondent banking, but clearly today stablecoins haven’t replaced anything. They simply extended what treasury teams already do. Artemis data showed stablecoin transaction volume crossing the ACH network for two consecutive months earlier this year, with February 2026 30-day adjusted volume at $7.2 trillion against ACH's $6.8 trillion. None of that is hypothetical anymore. CFOs and audit committees have the credible third-party numbers they were waiting on. Today's board-level question has moved from existence to deployment: where to add the stablecoin rail first. 

Pulling treasury's work onchain.

The simplest use case we see is a corporate pays a counterparty directly in stablecoins and the counterparty receives stablecoins. No fiat leg, no correspondent chain. The canonical example is Meta paying creators in Colombia and the Philippines in USDC. The incumbent alternative is a chain of correspondent banks, two-day settlement, opaque FX, and reconciliation that runs on email. Meta didn't replace its cards or wires payment stack to do this. Meta used stablecoins to solve the long-tail, small-ticket, cross-border payout problem, where their incumbent rail is structurally bad at the job, and left the rest of the operating model alone.

The mainstream corporate version of this story keeps fiat at both ends and runs the settlement leg onchain. Supplier payouts, marketplace settlements, B2B cross-border invoices: the payer wires in local currency, the recipient receives in local currency, and the leg in the middle clears in stablecoins instead of routing through a correspondent chain. Tazapay is running this pattern in emerging-market corridors. Circle Payments Network is one of the rails carrying the flows, connecting banks, payment service providers, and neobanks for 24/7 cross-border settlement. From a treasurer’s perspective nothing changes on the corporate's invoicing or receivables side. The capital efficiency shows up in the settlement window.

The third version sits a layer below the corporate, at the network. Card networks and issuers settle among themselves in stablecoin while the merchant and acquirer experience can stay in fiat (but can also be stablecoin). Visa launched USDC settlement in the US after running $3.5 billion annualized stablecoin settlement internationally. Mastercard had already opened USDC and EURC settlement for EEMEA acquirers earlier that year. The mechanics are familiar to anyone who has watched a T+1 cycle. Pre-funded accounts in destination markets that used to wait through the cycle now clear in minutes onchain. Treasurers don't see this layer directly, but the working capital it frees flows back into the acquirer economics that touch their P&L.

Three different workflows, one shared pattern. The stablecoin rail extends what was already running, and supplements where incumbent rails are inefficient. Cards, ACH, and wires already have existing workflows with stablecoins, but the boundaries between them are already moving. Treasurers I talk to see this as the start of a longer shift to onchain payment rails as the economics of previously prohibitive opportunities become viable. And we think corporates that wait will pay twice: once in working capital trapped in correspondent accounts, and again in the year they spend catching up when the rail earns more workflows. 

Additive stablecoin deployment complements corporate finance.

A replacement frame asks the treasury team to re-contract with counterparties and stand up parallel reconciliation while the legacy rail keeps running. This means break-even is measured in years. Visa's $3.5 billion stablecoin settlement program shows the additive route in production: fiat settlement keeps running as it always has, with USDC clearing the cross-border legs where correspondent banking prices are worst. The same logic carries across the corporate stack. Keep incumbents on the flows where their economics work, and point the stablecoin rail at the corridors and counterparty classes where they don't. Pilot scope is clear. Compliance stays manageable. Treasurers get a clean comparison against the incumbent rail on the workflow that actually changed.

One precondition, the architectural choice presumes the stablecoin holds up to basic treasury scrutiny. The asset has to comply with the regulatory regime in every jurisdiction the corporate operates in, and be globally available with sufficient liquidity in the corridors the treasury team actually needs. Not every stablecoin clears both.

Service providers are following the same logic. Kyriba has begun integrating USDC capabilities into its treasury management system. SAP's Digital Currency Hub sits inside the ERP, connecting the corporate's existing system of record to stablecoin payment rails. Each of those integrations assumes stablecoins live alongside the rails the corporate already runs, with the existing systems of record holding the audit and accounting position.

There's a second reason the additive route wins inside corporate finance. The objection that killed replacement programs in 2022 and 2023 was rarely the technology. It was the audit, controls, and counterparty-risk of standing up a parallel rail for flows that didn't need it. Additive deployment removes that objection because it scopes the new capability to the specific workflow that justifies it.

The next question is structural.

Core infrastructure providers — Kyriba in treasury, SAP in the ERP, FIS in banking — are already embedding stablecoin capabilities directly into the systems corporates run. This is the architecture conversation Circle is having with corporate treasurers and CFOs today.

We see three patterns emerging: managed through a bank or TMS partner, run in-house, or built with a stablecoin-native specialist. Circle works across all three, and my team's job is helping corporates pick the right one for their stack. We'll unpack the trade-offs in the next piece, and contact us to understand risks, opportunities and next steps for incorporating stablecoin rails in your payment tech stack.