BlockRiver Blog | Banks Are Building Stablecoin Settlement Rails

The traditional correspondent banking model that underpins most cross-border corporate payments was built for a different era. A payment from New York to Senegal might pass through eight to ten intermediary banks before reaching its destination. Each stop adds cost, delay, and compliance friction. Settlement cycles of five to ten days are standard for certain corridors, leaving significant working capital floating mid-transfer — untraceable, unavailable, and generating no return.

That architecture is now being rebuilt in real time. In December 2025, Visa announced USDC settlement in the United States, allowing issuer and acquirer partners to settle obligations in stablecoins rather than fiat. For the first time, U.S. issuer and acquirer partners can settle with Visa in Circle's USDC, a fully reserved, dollar-denominated stablecoin. With USDC settlement, issuers can benefit from faster funds movement over blockchains, seven‑day availability and enhanced operational resilience across weekends and holidays. As of November 30, Visa's monthly stablecoin settlement volume passed a $3.5 billion annualized run rate — a significant milestone since Visa became one of the first major networks to settle transactions in a stablecoin in 2023.

The regulatory scaffolding enabling this shift is now largely in place. On July 18, 2025, President Trump signed into law the GENIUS Act, legislation that establishes a regulatory framework for payment stablecoins. The legislation creates the first-ever Federal regulatory system for stablecoins, ensuring their stability and trust through strong reserve requirements. The GENIUS Act requires 100% reserve backing with liquid assets like U.S. dollars or short-term Treasuries and requires issuers to make monthly, public disclosures of the composition of reserves. The law resolved years of ambiguity that had kept major institutions on the sidelines.

In Europe, the Markets in Crypto-Assets Regulation has been fully applicable since December 2024, creating what is now the world's first comprehensive regulatory framework for stablecoins. In the EU, the implementation of MiCA and the regulatory clarity it provides have similarly given traditional financial institutions more confidence to move ahead with crypto and tokenization projects under a clearer, harmonized rulebook. Nine major European banks have joined forces to launch a euro-denominated stablecoin regulated under the trading bloc's Markets in Crypto Assets regime (MiCA). The banking giants involved are: ING, Banca Sella, KBC, Danske Bank, DekaBank, UniCredit, SEB, CaixaBank and Raiffeisen Bank International. Instant settlement, programmability, and seamless cross-border functionality open new possibilities for treasury operations, supply chain finance and the tokenisation of financial assets. For corporates operating across multiple jurisdictions, the promise is straightforward: faster, cheaper and more predictable payments, available around the clock.

The UK is pursuing its own path. The Financial Services and Markets Act (FSMA) 2023 expanded the Bank of England's regulatory remit to cover digital settlement assets, including systemic stablecoins. The Bank's proposed approach intends to ensure that we harness the potential benefits that systemic stablecoins could bring to payments in the UK, while ensuring that innovation happens responsibly. For several years, UK cryptoasset activity was effectively regulated only at the margins. 2025 has been a pivotal year for UK crypto policy: the year culminated with three FCA consultations proposing a comprehensive regime for cryptoasset activities, a bespoke disclosure and market abuse framework, and prudential rules for crypto firms.

For corporate treasury teams, the operational implications are concrete. Traditional corporate treasury operations face persistent friction that stablecoins are uniquely positioned to address: settlement delays where cross-border wire transfers typically require 2-5 business days, with funds often untraceable while in transit. This uncertainty hampers cash flow forecasting and ties up working capital. High transaction costs where international payments can incur fees of 2-5% when accounting for correspondent bank charges, FX spreads, and intermediary fees. Limited operating hours where traditional banking operates within cut-off times and business day constraints, creating liquidity gaps for global enterprises managing treasury across time zones.

Through stablecoins and the underlying distributed ledger technology, organizations are beginning to bypass costly, slow settlement networks and even local banking rails, unlocking real-time visibility and improved effectiveness. For global finance teams, this enables faster, cheaper, and more transparent management of cross-border liquidity. With 24/7 liquidity access, corporates can centralize cash more frequently, which can free up working capital and enhance yield opportunities by putting excess balances to work.

The numbers are material. In just five years, stablecoin supply has grown from $5 billion to $305 billion (as of September 2025). Volume used for remittances reached 3 percent of the $200 trillion in total global cross-border payments. Banks are not simply observing this shift — they are building it. Early Warning Services, which operates Zelle and is owned by seven major US banks including Bank of America, JPMorgan Chase and Wells Fargo, announced plans in October 2025 to expand Zelle internationally using stablecoins for cross-border payments.

The integration path does not require treasury teams to hold stablecoins on balance sheet or rebuild front-end systems. A collaboration between Circle and Finastra connects bank payment hubs to Circle's USDC settlement infrastructure, enabling fiat-originated payments to settle in USDC behind the scenes. This hybrid approach reduces friction for banks wanting stablecoin efficiency without rebuilding front-end systems.

Yet adoption is not without complexity. Legacy system compatibility presents challenges: ERP, TMS, and bank connectivity systems are not designed to interact with blockchain networks, wallets, or smart contracts today. Reconciliation complexity is another factor: on-chain and off-chain flows introduce new reconciliation challenges, particularly when stablecoin transactions bypass traditional bank statements and clearinghouses.

The competitive dynamic is straightforward. The most immediate benefit is the reduction in settlement time. This alone can create meaningful working capital advantages for companies moving tens of millions at a time. But there are secondary benefits too, with fewer intermediaries to manage, lower overall transaction costs and improved predictability in cash positioning. A logistics firm settling supplier payments across emerging markets in hours rather than days operates with materially different capital efficiency than one waiting five to ten days for settlement finality.

The question for treasury teams is not whether stablecoin rails will become standard infrastructure for cross-border settlement — the regulatory frameworks are in place, the banks are building, and the volumes are growing. The question is timing and sequencing: which corridors, which counterparties, which systems need to be ready first. Competitors who move early will free up working capital and reduce FX exposure. Those who wait will need a reason.