SoFi Bank's SoFiUSD Settles $25B Card Volume on Mastercard's Global Network

First US National Bank on Mastercard Rails

SoFi Bank, N.A. has become the first US national-chartered bank to settle card transactions in its own dollar stablecoin across Mastercard's global payments network. In the announcement posted on its investor-relations site on September 22, SoFi Technologies confirmed that the unit is now settling credit and debit card flows in SoFiUSD and has started migrating the whole card program to blockchain-based settlement. The company projects the card initiative will process more than $25 billion in annualized transaction volume. The go-live lands roughly six months after SoFi and Mastercard unveiled the partnership in March, when the plan was still framed as enabling issuer and acquirer settlement in SoFiUSD. The token is issued by the OCC-supervised SoFi Bank, redeemable 1:1 for dollars and backed predominantly by cash reserves — which SoFi bills as the first payment stablecoin issued by a US national bank. SoFi also flagged the legal distinction: SoFiUSD is not a bank deposit and carries no FDIC or SIPC insurance, unlike ordinary SoFi account balances.

Back-End Shift, Untouched Checkout

The layer being moved on-chain is not the consumer swipe itself. It is the interbank settlement leg that follows, between the card issuer and the merchant's acquirer — historically bound to banking hours and weekend cutoffs. Merchants do not need to hold SoFiUSD, open crypto wallets or install any new infrastructure. Through SoFi's commercial banking platform, settlement funds land directly in SoFi Bank accounts, where merchants can convert to cash at any time around the clock. CEO Anthony Noto stressed that no merchant-side change is required, while Mastercard's digital commercialization chief Sherri Haymond framed regulated stablecoin settlement as a practical fix for real corporate money-movement friction. The go-live also activates Mastercard's June decision to accept multiple regulated stablecoins — USDC, PayPal's PYUSD, Ripple's RLUSD and SoFiUSD — across networks including Ethereum, a leading layer 1 blockchain, plus Solana, Polygon and Base, with intraday, weekend and holiday settlement. SoFiUSD is available to SoFi's more than 15 million members and institutional clients. SoFi says it is separately negotiating stablecoin settlement with large US merchants, a cohort it describes as spanning multinational retailers of the Alibaba-class global footprint and technology service platforms.

Equities Unmoved, Stablecoins Hit $306.7B

Public markets treated the milestone with restraint. As of the September 23 Asian-session close, SoFi (NASDAQ: SOFI) finished at $17.16, up 1.12%, after touching an intraday high of $17.96 on volume of roughly 98 million shares — a muted move for a company whose stock is still down about 34% year to date. Mastercard (NYSE: MA) closed at $555.89, down 2.07%, signaling that investors do not yet price stablecoin settlement as a near-term catalyst for its economics. Mastercard has nonetheless been building the rails all year: a definitive agreement in March to acquire UK stablecoin-infrastructure firm BVNK for up to $1.8 billion, a BitLicense from New York's financial regulator in May, and the June multi-token settlement rollout. The backdrop is a market still expanding. Aggregate market cap for stablecoins stood near $306.7 billion as of September 23, up roughly 1.2% over 30 days, with USDT at about $183.5 billion (near 60% share) and USDC around $75.7 billion — and prospective merchant partners extending to US retail giants on the Home Depot scale. Readers tracking the market in real time can follow live spot and futures prices on MEXC.

The $25B Settlement Test

Our reading: the significance here is not that consumers will swipe cards with a token they never see. It is that the official filing we reviewed confirms production, not a pilot — real card settlement already running on-chain inside a regulated national bank. The competition among dollar stablecoins is shifting from which coin has the largest market cap to which becomes the settlement asset for banks, card networks and corporate treasury. If SoFi can run more than $25 billion in annualized card volume reliably on these rails, the demonstration effect may outweigh the launch of yet another token — and the planned expansion into cross-border payments and large-merchant settlement is where that thesis gets tested next.