8 Bank Groups Seek Tighter CLARITY Act Stablecoin Limits

Eight U.S. banking trade groups wrote to Senate Majority Leader John Thune and Democratic Leader Chuck Schumer on Monday, Sept. 14, asking for tighter limits on stablecoin rewards one day before the Senate's first floor test of the Digital Asset Market Clarity Act. That test, scheduled for 2:15 p.m. ET on Tuesday, Sept. 15, is a cloture vote on the motion to proceed to H.R. 3633 and requires 60 votes, which decides only whether the Senate begins debate, not whether the bill becomes law.

What the eight banking groups asked the Senate to change

Decrypt and CoinDesk both reported the Monday letter, and both name the American Bankers Association, the Bank Policy Institute and the Independent Community Bankers of America among the eight signatories, representing large banks and community lenders. The groups say the revised text still allows payments that function like interest on a bank deposit. Two specific edits are described in the reporting: removing the word "solely" from a restriction on payments connected with holding stablecoins, and deleting language that lets rewards vary with how many stablecoins a customer holds and for how long. Their argument, as quoted by Decrypt, is that the drafting "provides loopholes and avenues for the prohibition to be easily evaded."

The coalition also criticized a proposed deposit-flight "circuit breaker" that would let regulators step in if stablecoins start pulling deposits out of banks. According to CoinDesk, the ICBA sent a separate letter describing the mechanism as covering an 18-month period after the law takes effect, with action possible if regulators determine that transfers into payment stablecoins have caused a "substantial detrimental impact" on deposits at community banks holding less than $10 billion in assets. CNBC and CoinDesk both quote the groups' objection: "A circuit breaker that activates only after substantial deposit flight has already occurred is not a safeguard at all."

One point of apparent discrepancy across coverage is the size of the coalition, and it resolves cleanly once dates are matched. The American Bankers Association's own May 8, 2026 press release lists six associations writing to Senate Banking Chairman Tim Scott and Ranking Member Elizabeth Warren; the ICBA announced a July 13, 2026 letter signed by the ABA, the ICBA and 76 state banking associations; Monday's letter had eight signatories and went to the chamber's leaders rather than the committee. These are sequential letters in the same campaign, not conflicting counts of one document.

The vote Tuesday is about starting debate, not passing a law

The Block reports that Thune filed cloture on the motion to proceed at 4:52 a.m. ET on Saturday, Aug. 8, before the August recess, locking in the Sept. 15 slot. Cloture on a motion to proceed takes 60 votes; Republicans hold 53 seats, so if the entire conference votes yes, at least seven Democrats or independents must join, per The Block's count. Even a successful vote only opens debate, with amendments, final passage and House action on any Senate substitute still to come.

The legislative record behind Tuesday runs back further than the seed suggests. The House passed the CLARITY Act 294-134 on July 17, 2025. The Senate Banking Committee advanced its portion 15-9 on May 14, 2026, with all 13 Republicans joined by two Democrats, according to Latham & Watkins' policy tracker, which also notes the committee's May 12 text prohibited interest or yield on idle stablecoin balances while permitting activity-based rewards. That compromise, in Section 404, is precisely what the banks are still litigating.

The stablecoin fight is not the only obstacle. CNBC reported that Warren planned a Monday night floor speech attacking a new ethics provision blessed by President Donald Trump, calling it a "weak fig leaf."

The key figures

What the numbers actually establish, and what they don't

The banks' claim is causal: rewards on dollar tokens pull insured deposits out of banks, shrinking the funding base for mortgages and small-business loans. The available public data does not currently show that at the industry level. CU Today reported that the Blockchain Association pointed to FDIC figures showing domestic bank deposits rising $92.2 billion in Q3 2025, $318.3 billion in Q4 2025, $389.7 billion in Q1 2026 and $142.7 billion in Q2 2026 — the eighth consecutive quarterly increase, and all of it after the GENIUS Act was signed in July 2025. Coinbase chief policy officer Faryar Shirzad, writing in CoinDesk on Aug. 25, said community bank deposits grew about 26%, roughly $482 billion, between June 2019 and March 2026.

Those are aggregates, and aggregates have limits that cut both ways. CU Today's own write-up flags that industry totals do not reveal whether individual community banks or credit unions are losing funds to stablecoin platforms, and that much of the recent growth came from uninsured deposits. A national sum can rise while a specific category of institution loses share. The same piece cites a Standard Chartered estimate that stablecoins could eventually pull roughly $500 billion out of the U.S. — a projection, not an observation, and the summary does not specify the time frame or method behind it.

Readers should also be careful about the headline comparison between the two markets. The entire stablecoin sector stood at $302.8 billion on Sept. 10, 2026, per Stablecoin Beat, which reported a 0.8% contraction over the prior 90 days; DefiLlama data cited in an August industry review put the figure at $308.0 billion on Aug. 13, 2026, roughly 4.5% below a May 17 peak of $322.4 billion. Those are different providers, dates and coverage rules rather than contradictory facts. More importantly, a market capitalization is a stock of outstanding tokens at a point in time, while the FDIC deposit figures are quarterly changes in a flow — and a large share of stablecoin supply is held outside the United States, so the token total is not a measure of money that left American bank accounts.

Two things remain unknown. None of the coverage reviewed attaches an outflow estimate to Monday's letter, so the banks' request is framed as prevention rather than a quantified loss. And the effect of rewards will depend on rules regulators have not yet written, which is exactly why both sides can point to the same post-GENIUS deposit record and draw opposite conclusions.

Dated catalysts

• Sept. 15, 2:15 p.m. ET: cloture vote on the motion to proceed to H.R. 3633, needing 60 votes (The Block).
• Oct. 5: the Senate's tentative 2026 schedule shows a state work period beginning, with the House having canceled the weeks of Sept. 21 and Sept. 28, narrowing the window for amendments and final passage (The Block).
• Nov. 3: Election Day, after which the pre-midterm calendar effectively closes for this bill's floor time (The Block).