For most B2B finance leaders, the story of crypto has been easy to ignore. But stablecoin is emerging as not just the crypto for B2B payments, but as a new rail unto itself.

Why now? For starters, it’s impossible to ignore the stubborn reality of cross-border payments. In 2026, it can still take three to five days for money to move between major markets, and even longer for more exotic corridors. And payers remain essentially blind to where their funds are in transit. Stablecoin reaches where other currencies don’t.

The core problem, as Bottomline's Head of Corporate Solutions Product Management Colin Swain explained in a recent interview, is conceptual as much as technical. Payment stacks still run on decades-old cores. When treasurers “send” money via Swift, Bacs, ACH, CHAPS, or their local equivalents, they are not actually moving value in real time; they are sending an “I owe you” message. It then takes a few days and a web of correspondent banks and central banks to reconcile those IOUs.

User experience may feel instantaneous, but the underlying asset movement remains, in Swain’s words, “really archaic” compared with the internet world it sits atop.

Blockchain was supposed to fix this when it burst onto the scene 15 years ago, promising a decentralized, global ledger that could move value as easily as email. Technically, it delivered a shared system in which assets can be represented digitally and transferred and settled by multiple participants in near real time.

But the first generation of cryptocurrencies came with two fatal flaws for institutional payments: huge price volatility and low trust. As Swain notes, markets quickly treated Bitcoin and its cousins as “investment vehicles” rather than payment instruments, and “the one most important thing with any payment is trust.”

Stablecoins were born as a pragmatic workaround from inside that speculative world. Crypto traders needed a safe harbor at the end of each trading day; a way to park value overnight without worrying that Bitcoin might tank while they slept.

The solution was to peg new tokens one-for-one to fiat currencies: one US dollar stablecoin would always be worth one US dollar. Initially, this was just a convenience layer. The turning point came when regulators in the US and EU required issuers of regulated fiat-pegged stablecoins to hold high-quality reserves, like Treasuries or cash, backing every token.

That shift, Swain argues, is what turned certain stablecoins into “a real, trusted alternative to Swift, Bacs, ACH, and other payment methods we have today.”

It’s a telling parallel, as Swain recalled a mid-1990s TV appearance by Bill Gates who tried to explain the internet to a skeptical David Letterman. The late-night host dismissed streaming a baseball game online with the quip: “Have you ever heard of radio?”

If you compare today’s blockchain payments one-to-one with existing rails, the benefits can look incremental. Viewed as a new base layer for payments, the model is starkly different: instead of sending a promise that money will move, “you are sending money” itself, Swain said, across a global network designed for near-instant connectivity.

The question for B2B payments in 2026 is whether that substrate is finally mature enough regulatorily and operationally to matter. Only at this point does it become clear that stablecoins are shifting from crypto curiosity to serious a candidate for a new core B2B payments infrastructure.

 

Why Stablecoin Suddenly Matters for B2B payments

For corporate treasurers and bank product teams, the relevance of stablecoins is not abstract. It shows up directly in long-standing pain points around speed, cost, transparency, and foreign exchange.

Consider a simple U.K.-to-U.S. payment today. Even in well-served corridors, Swain notes, corporates routinely wait two to three days for funds to arrive; for less common corridors, a week or more is still normal. In one example, he said a payment from a U.K. fintech to Jordan hops from a local bank to a U.K. correspondent, then to Paris, then to Turkey, and only after days of holding for checks, does it reach Jordan. Every hop is a fee opportunity. Every delay is working capital trapped in transit.

Visibility is just as poor. A corporate sending $100 effectively watches the money disappear into “this ether of a world,” hoping it appears days later, Swain said. The same digital economy that can track a consumer order step-by-step still can’t tell a treasurer where a six-figure payment is at any given moment.

By contrast, a fiat-backed stablecoin on a major blockchain behaves more like email. If a company holds units of a dollar-pegged stablecoin and sends them to a counterparty, settlement is effectively immediate. “Instantly, funds are in the payee’s account,” Swain said. Transactions are recorded end-to-end, offering traceability legacy rails can’t match.

Beyond speed and transparency, Swain points to Forex (FX) and liquidity management. Export-oriented corporates often want to hold foreign-currency balances to reduce volatility, but doing so today means opening foreign currency accounts and paying heavily for them. With stablecoins, a German exporter can hold dollar-pegged value in a digital wallet and treat it as working capital, without traditional account structures.

The third frontier is automation. Traditional payments are “pretty blunt instruments,” Swain said: a message goes out, and days later funds may or may not arrive. On newer rails, business rules can be embedded directly into payment flows. FX thresholds, conditional releases, and milestone-based payments can be structured so that funds are released automatically when agreed conditions are met.

For B2B payments needs, the practical implications in 2026 and moving into 2027 look something like this:

  • Cross-border flows move from multi-day, multi-bank journeys toward near-instant settlement on blockchain rails.
  • FX exposure is managed more flexibly using fiat-pegged stablecoin balances as a treasury tool.
  • Accounts Receivable/Accounts Payable processes begin to automate parts of reconciliation and settlement within the payment flow itself.

What makes this credible, Swain argues, is regulation. With the U.S. and E.U. requiring reserves in Treasuries or cash, and frameworks emerging in the U.K. and UAE, the asset side is becoming “protected and trusted by regulation,” allowing banks and corporates to treat these instruments as money.

 

Risks, Regulations, and Strategic Stablecoin Choices for 2026

This is not a linear story. Swain is explicit that the ecosystem is still young, and that the next two to three years will be defined as much by risk management as by innovation.

Regulation is advancing on two fronts: defining what qualifies as a fully backed stablecoin, and building the compliance machinery around those assets, including anti-money laundering, sanctions screening, and wallet verification. On this second front, obvious gaps remain. “It’s very easy to send stablecoin to a wallet that you’ve got no idea who owns,” Swain said. “Trust in the asset is not the same as trust in the counterparty.”

The response is likely to be layered. Some controls will be built directly into payment-focused blockchain networks, as others come from banks and payment platforms that extend existing KYC and approval workflows to cover blockchain addresses.

Some blockchain advantages also create new risks. Transparency clashes with corporate privacy needs. Immediate finality removes settlement risk but also removes recall options. In today’s systems, slow by comparison, fraudulent payments may still be recoverable. On faster rails, it is usually irretrievable.

These tradeoffs feed into a larger question about the future of domestic payment schemes. In mature markets such as the U.K., U.S. and EU, batch infrastructures are aging, replacement timelines stretch into the 2030s, and even new methods introduced in the last decade, like open banking, risks becoming “old tech.” Against that backdrop, Swain poses a live question: should future payment schemes be built on distributed rails rather than centralized settlement models?

For B2B finance professionals, the message isn’t that legacy rails disappear overnight. Stablecoins and blockchain networks will coexist with bank money for years to come regardless of adoption patterns. A realistic 2026 scenario is that stablecoin carries a growing share of cross-border corporate flows, FX balances, and automated trade payments.

According to Swain, progress will come from those who understand both the daily realities of corporate workflows and the mechanics of these emerging payment rails. Crypto-native firms often lack real-world corporate context; incumbents often lack fluency in newer settlement models.

The opportunity is not simply to add another rail, but to decide, payment by payment, corridor by corridor, where fiat-backed, blockchain-based money creates real business value, and where familiar payments systems still earn their place.