Citi will settle stablecoin checkout payments that Coinbase converts to fiat

The 3.75% comes from one sentence in one report. Crowdfund Insider, relaying the Wall Street Journal's reporting ^[1], wrote that Citi is expected to hold digital dollars that can earn a reward at an APY of 3.75% ^[3]. The two Crypto Briefing reports describe the payments service and do not mention a reward ^[12][15].

That sentence can be read three ways. The reward could stay with Citi as income on its own token holdings, a line in the bank's treasury results. Citi could pass it through to clients who hold the tokens. That would put a large bank on the paying side of the stablecoin yield dispute ^[4]. Or Citi could credit clients part of the rate and keep the rest as a spread.

The dispute is about balances. As Crowdfund Insider describes it, banks fear customers will move money out of low-return accounts into stablecoins that pay more ^[4], and they argue lending suffers once those deposits leave ^[5]. The publication's own account treats the bank case as a delay tactic, backed by lobbying, to give banks time to offer the service themselves ^[5].

On the merchant side, as the Journal reported it, the money stays inside Citi. Coinbase converts incoming stablecoins into government-issued currency automatically, and Citi settles the proceeds as bank of record ^[16]. A multinational that takes tokens at checkout ^[15] ends up with fiat at Citi. Citi gets the rails and the blockchain infrastructure from Coinbase ^[16]. Its own blockchain services, tokenization included, run in seven jurisdictions ^[6], against a presence in 94 markets ^[13]. Brett Tejpaul, head of Coinbase Institutional, told the Journal the partnership would make payments faster and cheaper globally, according to Crowdfund Insider ^[11].

The market figures in the same report describe flows. Stablecoin supply has held near $320 billion ^[7] while payments and transfer activity rose an estimated 42% to 63% since January 1 ^[8]. With supply roughly flat, activity per dollar outstanding rose by about the same range ^[1]. Chainalysis puts cross-border flows up 78% over the 12 months to June 2026 ^[9]. On these figures the growth is in tokens changing hands, and parked balances, the kind that would pull money from deposit accounts, are not rising ^[4][7].

The reward still has a cash size. A corporate treasury holding $100 million of those digital dollars at 3.75% would collect $3.75 million a year ^[2]. The same rate across the whole $320 billion supply would pay out about $12 billion a year ^[3].

In my view the deal as reported is a settlement business that keeps merchant cash at Citi, and the 3.75% stays a treasury detail until it shows up in a client account. The strongest counter-case comes from Crowdfund Insider's own report. It says the feature will be offered to consumers as well as institutions ^[2], while both Crypto Briefing reports describe institutional clients ^[12][15]. A consumer holding digital dollars through Citi at 3.75% is the case banks have lobbied against ^[5]. If Citi credits that rate to customers, the view is wrong.