Why Major Banks Are Preparing Stablecoin Settlement Accounts

Stablecoins are increasingly being discussed not as consumer crypto products but as potential infrastructure for bank‑to‑bank payments. According to comments from Solana Foundation payments executive Maya Caddle, major banks are beginning to prepare stablecoin‑denominated settlement accounts that could operate alongside traditional fiat accounts and correspondent banking relationships. The goal is to create a faster settlement rail for certain cross‑border flows while preserving the existing banking system for compliance, liquidity, and regulatory requirements.

What “stablecoin settlement accounts” actually mean

A stablecoin settlement account would allow a bank to hold balances denominated in a regulated dollar‑pegged stablecoin such as USDC, instead of relying exclusively on traditional fiat accounts for interbank settlement.

Today, cross‑border payments often move through chains of correspondent banks. Each intermediary updates its own ledger, which can introduce delays, fees, and reconciliation complexity. By contrast, stablecoins allow tokenized dollars to move directly between institutions on a blockchain network.

In this model:

• A bank maintains a wallet or institutional account holding stablecoins.
• Transfers between banks occur directly on the blockchain.
• The blockchain transaction acts as the settlement record.

Internally, banks could still track customer balances in traditional fiat. The stablecoin layer would primarily serve as the interbank settlement asset, similar to how reserves or correspondent balances function today.

How stablecoin accounts could work alongside fiat and correspondent banking

Stablecoins are unlikely to replace existing payment rails overnight. Instead, they would operate in parallel with traditional systems.

A typical payment flow could look like this:

1. A customer instructs their bank to send money internationally.
2. The sending bank debits the customer’s fiat balance.
3. The bank converts the value into a dollar‑denominated stablecoin.
4. The stablecoin is transferred directly to the receiving bank on‑chain.
5. The receiving bank credits the beneficiary in local fiat or keeps the funds in stablecoin.

This approach can reduce intermediaries because the transfer does not need to pass through multiple correspondent banks. It can also shorten settlement times since blockchain networks can operate continuously rather than within banking hours.

Traditional rails would still be required for many use cases, including regulatory reporting, FX liquidity management, and jurisdictions that have not approved stablecoin settlement.

Why Solana is positioning itself for institutional payments

Blockchain networks compete to become the infrastructure layer for stablecoin transfers. Solana has increasingly positioned itself as a high‑throughput network designed for large‑scale payment flows.

Institutional adoption signals have begun appearing. Visa, for example, launched settlement capabilities that allow participating banks to settle certain obligations using USDC on the Solana blockchain instead of traditional fiat settlement rails. Early participants include Cross River Bank and Lead Bank.

Using stablecoins for settlement can provide several operational advantages for payment networks and banks, including:

• Continuous settlement availability, including weekends and holidays
• Faster funds movement compared with batch‑based banking systems
• On‑chain transparency and auditability

For networks like Solana, the strategy is to become a global settlement layer for tokenized dollars used in merchant settlement, cross‑border payouts, and institutional treasury movement.

Why rising stablecoin volumes matter to banks

Stablecoin usage has expanded rapidly in recent years. Reports cited stablecoin transaction volume reaching roughly $33 trillion in 2025, illustrating how widely tokenized dollars are already being used across crypto trading, payments, and liquidity flows.

Large transaction volumes provide a proof‑of‑concept for banks considering whether blockchain‑based settlement rails are viable at global scale. If clients increasingly demand faster cross‑border transfers or 24/7 treasury operations, institutions may have stronger incentives to integrate stablecoin infrastructure.

How regulation like the GENIUS Act changes incentives

One of the biggest barriers to bank adoption has been regulatory uncertainty. The Guiding and Establishing National Innovation for U.S. Stablecoins (GENIUS) Act, signed in 2025, created the first comprehensive U.S. federal framework for payment stablecoins.

The law establishes requirements such as:

• Only permitted entities can issue payment stablecoins
• Stablecoins must be backed by liquid reserves such as cash or short‑term Treasuries
• Issuers must disclose reserve compositions regularly

By defining how stablecoins can be issued and supervised, the framework reduces legal and compliance uncertainty for banks. Regulatory clarity can make it easier for institutions to justify building custody systems, treasury tools, and settlement infrastructure involving stablecoins.

The bigger shift: an additional settlement rail

The most realistic near‑term outcome is a hybrid financial system. Banks may continue using traditional correspondent networks for many transactions while adding stablecoin rails where they offer advantages in speed or cost.

That means stablecoins are less likely to replace banking infrastructure outright and more likely to become an additional settlement layer for certain cross‑border payments and institutional liquidity flows.

Early pilots and infrastructure investments suggest banks are beginning to explore this possibility—but the transition is still in its early stages.