U.S. Bank Column Makes Solana the Default Network for Stablecoin Banking

Stablecoins are moving closer to traditional financial infrastructure as Column, a federally chartered U.S. bank with $1.77B in assets, launches native stablecoin banking rails.

The bank now supports $USDC and $USDT conversions between crypto networks and fiat currencies around the clock, with Solana serving as its default blockchain alongside Ethereum and other major networks. Column says the system already processes tens of billions of dollars in annualized volume.

The move comes as financial institutions, fintech companies, and regulators continue to debate how stablecoins will fit into the global payments system.

Stablecoins Integrated Into Banking Core 

Stablecoins have traditionally depended on multiple layers between blockchain networks and traditional banking systems. A user receiving stablecoins might need to wait for banking hours, rely on prefunded accounts, or move funds through third-party providers before accessing dollars.

Column built stablecoins directly into its banking core instead. The company says stablecoin addresses and bank accounts live on the same ledger, letting customers convert $USDC and $USDT into fiat instantly without relying on intermediaries or maintaining prefunded balances.

Customers can receive $USDC on Solana on a weekend and send dollars through payment networks such as RTP immediately. They can also debit traditional bank accounts through ACH, send stablecoins to wallets, or convert digital dollars into international payments through systems such as SWIFT.

"Stablecoins aren't a crypto product. They're dollar infrastructure, and their usefulness is a function of the network beneath them: how fast it settles, what it costs, and its reliability. Column made them native to a bank with Solana as the default network, and moved the frontier of financial services from theory into production." - Amelia Daly, head of partnerships, Solana Foundation

Why Solana Matters for Stablecoin Payments

Solana has become a major network for stablecoin activity. A Solana Foundation report highlighted how stablecoins could reshape remittances by reducing settlement times and lowering costs in international money transfers.

Traditional remittances often involve fees, multi-day settlement periods, and large amounts of capital locked in prefunded accounts. The report noted that sending $200 internationally costs an average of 6.49%, while settlement can take 3 to 5 business days.

The report argues that stablecoins on high-speed blockchains can enable faster, more efficient payment flows, especially for users in regions with limited access to traditional financial services.

Stablecoins Enter the Broader Banking Stack

Column launched its stablecoin product after observing the challenges of building stablecoin payment experiences, with fintech companies including Slash and Brex already using it.

The company also introduced additional financial products, including full-stack card issuing, global banking accounts, and multicurrency accounts with local payout capabilities.

For stablecoin-backed cards, Column says companies can authorize spending against actual stablecoin balances rather than relying on prefunded capital. It also supports settlement with Visa and Mastercard through stablecoins without requiring additional fiat settlement accounts.

The broader goal is to allow companies to build financial products through a single banking integration instead of combining multiple banks, processors, and infrastructure providers.

Stablecoin Regulation Remains a Key Debate

Column’s launch arrives during ongoing U.S. policy discussions around stablecoins. Banking groups have urged lawmakers to place stricter limits on stablecoin rewards, arguing that certain programs could encourage customers to move deposits away from traditional banks.

The debate formed part of discussions around the proposed CLARITY Act, which focused on establishing a regulatory framework for digital assets. The legislation failed to advance in the Senate, leaving regulators such as the SEC and CFTC to continue shaping crypto policy through their existing authorities. Despite regulatory uncertainty, financial companies continue building stablecoin products.

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