
Treasury data shows $6.6 trillion in bank deposits exposed to stablecoin yield via affiliate loopholes. Fed models a $600B–$1.26T lending contraction. Comment period on AML rules closes June 9.
President Trump signed the GENIUS Act on 18 July 2025, creating the first federal framework for payment stablecoins. Community and regional banks warned at the time that it would pull deposits off their balance sheets. That warning was treated as predictable lobbying. A year on, the rule on yield is being tested in real time. The numbers from Treasury and the Federal Reserve are now public. The deposit-flight question is a measurable risk.
The GENIUS Act tried to neutralize the deposit threat with one provision: it prohibits issuers from paying interest or yield on a payment stablecoin. The logic held that a stablecoin paying nothing would struggle to compete with an interest-bearing deposit. The deposit base would stay put.
The problem is the word “issuer.” The Bank Policy Institute laid out the gap plainly: the statute bars the issuer from paying yield. It says nothing about the exchanges and affiliates that distribute the coin. An exchange can pay a holder a reward that tracks Treasury yields. It can market that reward jointly with the issuer. That arrangement stays inside the letter of the law while defeating its purpose. The largest crypto exchanges already run exactly this play, turning a payment stablecoin into a de facto interest-bearing account sitting outside the banking system.
If the indirect-yield channel holds, the premise behind the GENIUS Act’s deposit protection collapses. A consumer choosing between a community-bank checking account and a stablecoin that pays a Treasury-linked reward through an affiliate is making the comparison the law was written to prevent.
The reason this is no longer a rhetorical fight is that the official numbers exist. The Treasury Borrowing Advisory Committee, in an April 2025 presentation, identified roughly $6.6 trillion in transactional deposits – the checkable money sitting in demand accounts – as the tier most exposed to migration into stablecoins. The same committee projected the stablecoin market could reach about $2 trillion by 2028, citing external estimates. That projection came against a market that was a fraction of that size when the deck was written.
The Federal Reserve modeled the credit impact. In a December 2025 staff note, “Banks in the Age of Stablecoins,” Fed economists estimated that a large stablecoin-driven deposit drain, on the order of $1 trillion with no recycling back into the banking system, could shrink bank lending by $600 billion to $1.26 trillion. Even a moderate $500 billion drain produced an estimated $190 billion to $408 billion contraction in loans. The same note observed that regional and community banks would need to lean on relationship advantages and local knowledge to hold deposits against digital alternatives. That is the central bank’s way of acknowledging that small banks are the most exposed.
These are not advocacy figures from the banking lobby. They are the government’s own estimates, and they put a credible range on what the banks have been describing.
The variable that decides which scenario plays out is where the reserves go. The Fed note points out that reserve composition varies widely: Circle holds roughly 13% of its backing in bank deposits. Tether holds close to none. Some smaller issuers such as Gemini’s dollar park their reserves almost entirely in banks. That distinction is the whole game. If a stablecoin issuer puts its reserves back into the banking system as deposits, the money that left a community bank can recycle into the system. The net contraction is smaller. If the issuer holds Treasuries instead, the deposit leaves the banking system for good and the lending hit is real. A market dominated by issuers that favor Treasuries over bank deposits is a slow drain on bank funding rather than a reshuffling.
The exposure is not evenly distributed. The American Bankers Association cites the $6.6 trillion Treasury figure when it warns about deposit flight. The warning bites hardest for small banks because of structure. Community banks fund a disproportionate share of local lending from exactly the kind of low-cost transactional deposits that a yield-paying stablecoin targets. The Independent Community Bankers of America put the stakes in concrete terms: community banks make 60% of the nation’s small-business loans and 80% of banking-industry agricultural lending. Migrating those retail deposits into stablecoins would raise borrowing costs and impair credit availability in the communities that depend on it.
A large money-center bank can replace lost deposits with wholesale funding. A small bank in a farming county cannot. When the cheapest part of its funding base is the part most exposed to a new competing product, the squeeze shows up first in what it can lend locally.
The counterargument comes from the White House. In April 2026 the Council of Economic Advisers published a report arguing that the yield prohibition does very little to protect bank lending. It estimated that removing the ban would increase lending by only about $2.1 billion – a rounding error – and mostly at large banks rather than small ones. The implication is that stablecoin yield is not the deposit magnet the banks claim. The GENIUS Act’s restriction would be solving a problem that does not exist.
The banks’ rebuttal is that the CEA studied the wrong question. The live concern is not whether ending the prohibition would boost lending. It is whether deposits leave in the first place. The CEA’s framing largely sidesteps that. Both readings cannot be right, and the data that would settle it – actual deposit flows out of small banks into yield-paying stablecoin arrangements – is only now starting to accumulate. The total stablecoin market sits near its all-time high above $300 billion, tracked in real time on public dashboards.
The compliance build-out is becoming its own barrier. In April 2026 Treasury’s Financial Crimes Enforcement Network and the Office of Foreign Assets Control jointly proposed anti-money-laundering and sanctions rules for permitted payment stablecoin issuers under the GENIUS Act. The comment period closes on 9 June 2026. A licensed issuer must run a bank-grade compliance program. That raises the fixed cost of issuance and tilts the field toward large, well-capitalized players. That has a second-order effect on the deposit question: the issuers most able to bear that cost are precisely the ones large enough to move deposits at scale if they choose to.
The decisive variable is whether regulators close the affiliate-yield channel. If the indirect-reward model stands, the GENIUS Act becomes a deposit-flight law in practice regardless of its drafters’ intent. The Fed’s contraction scenarios become live possibilities rather than stress tests. If regulators extend the prohibition to exchanges and affiliates, the deposit threat largely deflates. Stablecoins would compete on convenience rather than yield. The banks are lobbying to close the gap through follow-on legislation. The crypto exchanges are defending the revenue line that funds their stablecoin partnerships.
The first year of the GENIUS Act settled the legal architecture. The second year will settle whether the money stays in bank accounts or moves to a token paying Treasury yield through a side door. That outcome was never going to be decided by the statute. It will be decided by how the yield rule is enforced.
Prepared with AlphaScala research tooling and grounded in primary market data: live prices, fundamentals, SEC filings, hedge-fund holdings, and insider activity. Each story is checked against AlphaScala publishing rules before release. Educational coverage, not personalized advice.