How Visa and Mastercard Settle in Stablecoins (and What It Changes for You)

When Visa or Mastercard "settles in stablecoins," the banks behind a card payment square up with each other in a dollar token like USDC instead of a bank wire -- and nothing about your purchase, your statement, or what the merchant receives has to change. Visa's stablecoin settlement volume passed a $20 billion annualized run rate in September 2026, up more than 15x year over year, per Visa, and Mastercard closed its acquisition of stablecoin-infrastructure firm BVNK on August 3, 2026, per Mastercard.

The August headlines made it sound like the card networks had gone crypto. What actually happened is narrower: a back-office process most cardholders never see is moving onto blockchains. Here is what that process is, and what does not change for you.

Every card payment involves four parties, plus the network in the middle. CGAP, a World Bank-housed research group, lists them as the customer, "the customer's bank or issuing bank," the merchant, and "the merchant's bank or acquiring bank." The issuer gave you the card and holds your balance; the acquirer credits the merchant; the network (Visa or Mastercard) routes messages and rules between them and does not hold your money.

A single purchase then moves through three stages; only the first happens while you wait at the terminal.

The last row is Visa's own wording, per Visa. That money has traditionally moved in fiat over bank rails -- ACH (the Automated Clearing House) or wires -- which run on banking days, so weekends and holidays create gaps. Cross-border adds currency conversion; Visa called it "a days-long currency conversion process and costly international wire transfers" in its 2023 announcement.

A stablecoin is a token designed to hold a fixed value, usually one US dollar, on a blockchain that does not close on weekends (see our stablecoin statistics for the market's size). Stablecoin settlement replaces the third row of the table -- and only that row. Either leg can be paid in USDC (USD Coin, issued by Circle) or another regulated dollar token instead of a fiat wire:

• Issuer to network. A crypto card program holds customer funds in stablecoins but had to convert to fiat and wire it to Visa every banking day. Visa's 2021 pilot let such issuers pay in USDC directly, because fiat settlement "added cost and complexity for crypto-native businesses," per Visa.
• Network to acquirer. An acquirer can receive its payout in stablecoins and pay merchants in stablecoins if they opt in, or in local fiat if not. Visa's 2023 pilots with Worldpay and Nuvei were this leg, per Visa.

Who bears the cost today? The issuer and acquirer. An issuer must have fiat in the right currency and account before each settlement window: idle working capital over weekends, plus FX (foreign-exchange) spreads on cross-border flows. That treasury burden is what is being solved.

• March 29, 2021. Visa became the first major network to settle in USDC, over Ethereum, with Crypto.com as pilot issuer and Anchorage as settlement bank, per Visa.
• September 5, 2023. Visa added Solana and extended stablecoin settlement to acquirers Worldpay and Nuvei, having moved "millions of USDC" between partners, per Visa.
• December 16, 2025. US issuers and acquirers could settle VisaNet obligations in USDC, Cross River Bank and Lead Bank first, seven days a week instead of the traditional five-business-day window; annualized volume was above $3.5 billion, per Visa.
• April 29, 2026. Five more chains (Arc, Base, Canton, Polygon, Tempo) joined Avalanche, Ethereum, Solana, and Stellar; the run rate hit $7 billion, up 50% quarter over quarter, across more than 130 stablecoin-linked card programs in 50-plus countries, per Visa.
• August 5, 2026. Visa Direct, its push-payments rail, gained stablecoin prefunding and payouts with Zero Hash as the infrastructure and compliance layer; Visa Direct reaches "more than 18 billion endpoints" in "more than 195 countries and territories," per Zero Hash. This is a payouts product, not core card settlement.
• August 18, 2026. Visa issued a request for proposal (RFP) for a new settlement partner able to support a range of stablecoins, handle settlement for the coming Open USD token, and hold crypto exchange licenses in the US, Canada, the UK, and Singapore, per CoinDesk. Its previous Visa Direct partner, BVNK, now belongs to Mastercard.
• September 8, 2026. Settlement volume "recently surpassed a $20 billion annualized run rate, up more than 15x year-over-year," with payment volume on its more than 160 stablecoin-linked card programs up nearly 200% year over year, per Visa.

The trajectory, from Visa's own disclosures above:

• June 24, 2025. Mastercard said it would enable Fiserv's FIUSD token "as a settlement option for its global acquirers," with Fiserv able to use Mastercard's Multi-Token Network, per Mastercard.
• March 17, 2026. Mastercard agreed to buy BVNK, a London-based firm founded in 2021, for up to $1.8 billion including $300 million contingent on performance targets, per CNBC. BVNK moves payments across more than 130 countries for clients including Worldpay, Deel, and Flywire, and "processes $30 billion a year," per CoinDesk.
• June 3, 2026. Mastercard opened its settlement network to regulated stablecoins with intraday, weekend, and holiday cycles: USDC, PYUSD, USDG, USDP, RLUSD, and SoFiUSD on chains including Ethereum, Solana, Polygon, Base, Arbitrum, and the XRP Ledger, with Cross River, Lead Bank, CBW Bank, ARQ, and Nuvei first, per CoinDesk.
• August 3, 2026. The BVNK deal closed, framed around "cross-border B2B payments, remittances, payouts, settlement and treasury flows," per Mastercard.

Both networks also back the Open USD consortium, whose OUSD token is not yet live -- see our Open USD explainer. For the month's other moves, see our August 2026 roundup.

The benefits accrue mostly to institutions: an acquirer paid on a Saturday can pay merchants on a Saturday; a crypto-native issuer stops pre-positioning fiat for every window; one dollar token replaces correspondent-banking hops and FX conversion. The limits matter just as much:

• The settlement currency is still a dollar. USDC settles at one dollar; the point is the rail, not the asset.
• The cardholder never chooses it. It is an arrangement between an issuer or acquirer and the network. You are not consulted and do not see it.
• The merchant still receives local fiat unless it opts in. Both networks route stablecoins to the acquirer, which pays merchants however they have asked to be paid.
• Regulation is still settling. The US GENIUS Act set the federal framework for payment stablecoins; see our GENIUS Act explainer.

• Your purchase authorizes the same way. The issuer approves or declines in seconds; settlement happens hours later, between banks.
• Your statement is the same. A merchant name and a fiat amount. No token, no chain, no transaction hash.
• You cannot "pay in stablecoin" at a Visa terminal because Visa settles in stablecoin. The terminal speaks the card protocol. What changed is how issuer and acquirer square up afterward, not what the card reader accepts.
• A crypto card's conversion happens when you load it, not at the terminal. The conversion to a fiat balance happens at deposit; the later tap is an ordinary authorization against that balance.
• Refunds, chargebacks, and disputes work the same. Those rules sit on the authorization and clearing records, which are unchanged.

For a prepaid crypto card like SolCard, the picture is simple: you deposit SOL, USDC, or USDT over Solana, or USDC or USDT over Ethereum, BSC, Arbitrum, Base, Polygon, or Avalanche, and the deposit is converted and held as a fiat balance. When you pay, the terminal sends a normal Mastercard or Visa authorization against that balance, so spending never waits on a live on-chain transaction.

Everything in this article happens after that moment, between issuer, network, and acquirer. A cardholder does not configure it, and we make no claims here about any specific program's settlement arrangements, including our own. What the trend means for you is that crypto-linked card programs now have an always-on way to fund the settlement side, on the same blockchains you deposit over. New to the category? Start with what is a crypto debit card.

Settlement is when money actually moves from the cardholder's bank (the issuer) to the merchant's bank (the acquirer), netted across a day's transactions, after authorization (the seconds-long approval) and clearing (the exchange of final details). Visa says it happens "usually within 24 to 72 hours," per Visa.

A participating issuer or acquirer settles its VisaNet obligation in USDC on a supported blockchain instead of wiring fiat, and Visa pays the other side the same way if it opted in. Visa supports nine chains, settles seven days a week, and reported a $20 billion annualized run rate in September 2026, per Visa.

BVNK builds infrastructure for businesses to hold, move, and convert value between fiat and stablecoins across more than 130 countries. Mastercard agreed to pay up to $1.8 billion, per CNBC, and closed on August 3, 2026, per Mastercard, giving it an in-house settlement and payouts layer.

Not through the card network. A terminal accepts a card authorization; whether the settlement behind it uses stablecoins depends on the institutions involved. To spend a stablecoin balance at a terminal, use a card that converts your deposit to a fiat balance when you load it -- see our how to pay with crypto guide.

"Visa and Mastercard settle in stablecoins" means the banks behind a card payment can now square up in USDC on a blockchain, around the clock, instead of in fiat over rails that close on weekends. Visa grew that from a 2021 pilot to a $20 billion annualized run rate; Mastercard opened its network to six regulated tokens in June and bought BVNK in August. For institutions, that is faster funding and simpler treasury. For you, the tap, the statement, and the dispute process are unchanged -- and on a prepaid crypto card like SolCard, your conversion happens at deposit, long before any network settles anything.

• Visa -- Visa Brings Onchain Lending into Everyday Payments (September 8, 2026)
• Visa -- Adding Five Blockchains for Settlement (April 29, 2026)
• Visa -- Visa Launches Stablecoin Settlement in the United States (December 16, 2025)
• Visa -- Visa Expands Stablecoin Settlement Capabilities to Merchant Acquirers (September 5, 2023)
• Visa -- Visa Becomes First Major Payments Network to Settle Transactions in USD Coin (March 29, 2021)
• Visa -- How a Visa transaction works
• Zero Hash -- zerohash Powers Stablecoin Capabilities for Visa Direct (August 5, 2026)
• CoinDesk -- Visa looking for new stablecoin settlement partner after BVNK sale to Mastercard (August 18, 2026)
• Mastercard -- Mastercard completes acquisition of BVNK (August 3, 2026)
• CoinDesk -- Mastercard agrees to purchase BVNK for up to $1.8 billion (March 17, 2026)
• CNBC -- Mastercard acquiring stablecoin startup BVNK in $1.8 billion bet (March 17, 2026)
• CoinDesk -- Mastercard expands onchain settlement in bet on stablecoins and always-on finance (June 3, 2026)
• Mastercard -- Mastercard partners with Fiserv to accelerate mainstream stablecoin adoption (June 24, 2025)
• CGAP -- Acquiring Models