SoFi Launches Stablecoin Card Settlement on Mastercard, Projecting Over $25 Billion a Year

SoFi Bank began settling its debit and credit card transactions with SoFiUSD on Mastercard’s global network on September 22, 2026. The fintech projects that the program could process more than $25 billion in transactions annually, although the launch is still too new to establish that scale as an operating track record.

Stablecoin Settlement Goes Live

SoFi says it is the first national bank in the United States to operate live stablecoin settlement across Mastercard’s network. The customer experience is designed to remain unchanged: cardholders continue using their cards normally while settlement occurs behind the scenes with SoFiUSD.

The stablecoin is issued within a regulated banking framework overseen by the Office of the Comptroller of the Currency. It operates on public blockchains, initially including Ethereum and Solana, allowing settlement to run around the clock and supporting programmable payment functions.

The initiative follows a strategic partnership between SoFi and Mastercard announced in March 2026. In May, SoFiUSD became available to approximately 15 million SoFi app users, positioning the token as part of the company’s broader effort to make payments faster and more efficient.

A Large Projection Against a Smaller Token Base

The program’s projected transaction volume is significantly larger than SoFiUSD’s current circulation. At the end of the second quarter of 2026, approximately $300 million of the stablecoin was in circulation.

Key figures include:

• Projected annual card settlement: more than $25 billion
• SoFiUSD circulation at the end of Q2 2026: approximately $300 million
• SoFi app users offered access to SoFiUSD: approximately 15 million
• Initial public blockchains: Ethereum and Solana

The gap between circulation and projected annual settlement highlights the difference between a token’s outstanding supply and the volume it can support through repeated payment flows. It also means the $25 billion figure remains a forecast rather than evidence of completed transaction activity.

Galileo Expansion Plans

SoFi plans to make its stablecoin settlement capabilities available to other banks through Galileo, its financial technology platform. The company also intends to pursue direct arrangements with merchants.

Those plans could turn the Mastercard integration into a broader infrastructure business, but no other banks have publicly committed to using Galileo for stablecoin settlement. Until external customers are announced, the expansion remains a strategic objective rather than a demonstrated revenue stream.

What This Means

SoFi’s launch gives Solana a direct role in a live, regulated card-settlement initiative tied to a major US fintech and Mastercard’s global network. If transaction volumes approach the company’s projection, the program could provide a meaningful example of public blockchains operating beneath familiar consumer payment products.

The main indicators to watch are growth in SoFiUSD circulation beyond $300 million, new merchant partnerships, and the first outside banks adopting Galileo. These milestones will determine whether the launch becomes a scalable institutional payment network or remains primarily an internal SoFi deployment.