The U.S. stablecoin market, currently valued at $323 billion, has become the focal point of a regulatory battle between the banking industry and crypto firms over who controls dollar-denominated yield. At stake: whether stablecoin issuers and their affiliates can offer interest-like returns to ho...
"Up to $6 trillion in deposits could shift to stablecoins if platforms are allowed to pay interest on them." — Brian Moynihan, CEO, Bank of America (January 2026)
The U.S. stablecoin market, currently valued at $323 billion, has become the focal point of a regulatory battle between the banking industry and crypto firms over who controls dollar-denominated yield. At stake: whether stablecoin issuers and their affiliates can offer interest-like returns to holders, or whether that function remains the exclusive domain of FDIC-insured depository institutions.
Three parallel regulatory tracks — the GENIUS Act (signed July 2025), the OCC's proposed rulemaking (comment period closed May 1, 2026), and the FDIC's proposed rulemaking (comments due June 9, 2026) — are converging to define the boundary between payment stablecoins and deposit substitutes. A fourth legislative vehicle, Section 404 of the CLARITY Act, advanced through the Senate Banking Committee on May 14 with a 15–9 vote, adding a compromise framework that bans passive yield but preserves activity-based rewards.
The economic stakes are quantifiable. Tether earned $1.04 billion in Q1 2026 profit on $141 billion in U.S. Treasury holdings. Coinbase earned $305 million in stablecoin revenue in Q1 2026, a 55% year-over-year increase. The White House Council of Economic Advisers estimates the yield prohibition would increase bank lending by only $2.1 billion — a 0.02% increase — at a net welfare cost of $800 million. The banking lobby disputes this figure, projecting deposit flight of up to one-fifth of consumer and small-business lending.
The stablecoin economy generates revenue primarily through the spread between reserve asset yields and the zero (or near-zero) return passed to holders. As of May 2026, the market breaks down as follows:
Tether (USDT): $189.6 billion in circulation. Q1 2026 net profit of $1.04 billion. Excess reserves reached a record $8.23 billion. Reserve composition includes $141 billion in U.S. Treasuries (making Tether the 17th-largest holder globally), approximately $20 billion in physical gold, and roughly $7 billion in Bitcoin. Tether reported over $10 billion in net profit for full-year 2025. USDT does not pay yield to holders.
Circle (USDC): $77.6 billion in circulation. Circle shares approximately 50% of USDC reserve income with distribution partners, primarily Coinbase. Coinbase earned $332.5 million in stablecoin revenue in Q4 2025 and $305 million in Q1 2026, with more than 25% of all USDC in circulation held within Coinbase products. The revenue-share arrangement between Circle and Coinbase exceeds $900 million annually.
The yield gap is significant. The U.S. national average savings account rate stands at 0.50% APY. High-yield savings accounts at online banks offer 4.00–4.10% APY. Coinbase's USDC rewards program offers approximately 3.5% to holders. DeFi lending protocols offer 4–8% on stablecoins, with higher rates reflecting commensurately higher risk. Chase's standard savings account pays 0.01% APY.
Two issuers — Tether and Circle — control approximately 85% of the $323 billion stablecoin market, a concentration ratio that exceeds the top-four bank concentration in U.S. deposits.
Three federal agencies are simultaneously building the rulemaking framework for stablecoin issuance under the GENIUS Act, signed into law in July 2025.
The core prohibition: The GENIUS Act bars permitted payment stablecoin issuers (PPSIs) from paying "any form of interest or yield solely in connection with the holding, use, or retention of such payment stablecoin." The operative word is "solely." It leaves ambiguity around indirect arrangements.
OCC Proposed Rulemaking (February 25, 2026): The OCC's notice of proposed rulemaking covers nationally chartered banks and federal savings associations seeking to issue stablecoins. Comment period closed May 1, 2026. The OCC introduced a "rebuttable presumption" — not specified in the statute — that certain affiliate and third-party pass-through arrangements constitute prohibited yield payments. Issuers bear the burden of proving otherwise.
FDIC Proposed Rulemaking (April 7, 2026): The FDIC's parallel rulemaking covers state-chartered, FDIC-insured institutions. PPSIs may engage in four core activities: issuing stablecoins, redeeming them, managing reserves, and providing limited custody. The FDIC clarified that deposits held as stablecoin reserves are not insured on a pass-through basis to stablecoin holders. Insurance applies only to the PPSI itself, capped at $250,000 — regardless of how many millions in stablecoins the reserves back. Comment period closes June 9, 2026.
Redemption requirement: Both proposals mandate stablecoin redemption within two business days. PPSIs are prohibited from pledging or rehypothecating reserve assets, with limited exceptions.
The central technical dispute concerns what the OCC calls the "affiliate loophole." The GENIUS Act prohibits issuers from paying yield directly. It says nothing explicit about affiliates or third parties doing so on the issuer's behalf.
The current arrangement between Circle and Coinbase illustrates the structure in question. Circle issues USDC and manages the reserves. Coinbase distributes USDC and offers approximately 3.5% rewards to users who hold USDC on its platform. Circle pays Coinbase over $900 million annually in revenue share. Whether this arrangement constitutes prohibited "interest or yield" or permissible "activity-based rewards" is the defining question.
The OCC's proposed solution: a rebuttable presumption that if an issuer has a contract with an affiliate to share revenue, and that affiliate then pays yield to stablecoin holders, the arrangement violates the prohibition. The OCC stated it expects "a large and changing variety of arrangements with third parties in which PPSIs could achieve the payment of yield to payment stablecoin holders."
According to analysis from Perkins Coie, the rebuttable presumption extends to white-label relationships and could capture a wide range of distribution partnerships that currently exist across the stablecoin ecosystem.
The legislative picture gained a second layer on May 1, 2026, when the revised text of the Digital Asset Market Clarity Act (CLARITY Act) introduced Section 404 — a compromise brokered by Senators Thom Tillis (R-NC) and Angela Alsobrooks (D-MD) after a four-month standoff.
What Section 404 bans: Passive stablecoin yield — earning interest simply for holding USDC, USDT, or any other payment stablecoin. The text prohibits crypto firms from paying interest or yield on stablecoin balances "in a manner economically or functionally equivalent to a bank deposit."
What Section 404 preserves: Activity-based rewards tied to payments, trading, liquidity provision, and staking. This distinction — passive yield vs. active rewards — is the legislative compromise.
Market reaction: Circle (CRCL) shares jumped nearly 20% on May 4 after the compromise text was released, according to CNBC. The market interpreted the language as preserving Circle's existing business model, which routes yield through distribution partners rather than paying it directly. This followed an 18% single-day decline in Circle stock on March 24 when an earlier draft appeared to threaten all forms of stablecoin yield.
The vote: The Senate Banking Committee advanced the CLARITY Act on May 14, 2026, with a 15–9 vote. The bill now faces a 60-vote threshold on the Senate floor.
The American Bankers Association publicly opposed the compromise, calling it insufficient. ABA CEO Rob Nichols wrote to bank CEOs arguing the bill "does not do enough to prevent crypto companies from offering interest-like rewards on stablecoins."
The debate over deposit flight from banks to stablecoins has produced two sharply divergent economic projections.
White House Council of Economic Advisers (April 2026): The CEA published a formal analysis titled "Effects of Stablecoin Yield Prohibition on Bank Lending." Key findings:
The White House concluded that "a yield prohibition would do very little to protect bank lending, while forgoing the consumer benefits of competitive returns."
Banking industry projections (Bank Policy Institute, ABA, May 2026): Banking trade groups estimate deposit flight driven by yield-bearing stablecoins could reduce consumer, small-business, and agricultural lending by "one-fifth or more." The ABA argues the stablecoin market could scale from $300 billion to $2 trillion if yield is permitted, amplifying the threat.
The BPI contends the White House model understates substitution elasticity between stablecoins and deposits, particularly for rate-sensitive retail deposits in the $10,000–$250,000 range where FDIC coverage is most relevant.
According to Ledger Insights, the White House model "deserves scrutiny" because it assumes rational, well-informed depositors — a behavioral assumption that may not hold during periods of yield compression or financial stress.
The regulatory outcome will reshape competitive dynamics across three axes:
Circle vs. Tether: The CLARITY Act framework structurally favors Circle's model. USDC's distribution through regulated partners like Coinbase, which offer activity-based rewards, aligns with the permitted category. Tether, which does not share yield with holders or partners and operates offshore, faces a different calculus: it does not need the yield loophole because it already keeps all reserve income. However, Tether's lack of U.S. regulatory compliance may limit its access to the domestic market as GENIUS Act enforcement tightens.
Coinbase's exposure: Coinbase's $305 million quarterly stablecoin revenue stream depends on the continued classification of its USDC rewards as activity-based rather than yield. If the OCC's rebuttable presumption is finalized as proposed, the Circle-Coinbase revenue share arrangement could face challenge. According to CoinDesk, the CLARITY Act "shifts bargaining power from Coinbase to Circle" because Coinbase's ability to offer competitive rewards becomes contingent on regulatory classification.
Banks vs. crypto platforms: A Hyperliquid-Circle arrangement announced on May 18, 2026, according to CoinDesk, allows Hyperliquid to capture most reserve income generated by stablecoin deposits on its platform, further pushing stablecoin profit capture toward crypto trading venues and away from issuers. This model — where the distribution platform rather than the issuer controls yield economics — may proliferate if the regulatory framework permits it.
DeFi remains unaddressed: Neither the GENIUS Act, the OCC rulemaking, nor the CLARITY Act directly regulates decentralized protocols that offer stablecoin lending yields of 4–8%. The yield prohibition applies to "permitted payment stablecoin issuers" — regulated entities. Unregulated DeFi protocols operate outside this perimeter, creating an asymmetry that could push yield-seeking capital toward less-regulated venues.
The stablecoin yield debate is ultimately a contest over who intermediates dollar-denominated savings in a digital economy. Banks argue stablecoins with yield are deposit substitutes that bypass FDIC insurance, capital requirements, and consumer protections. Crypto firms argue the yield prohibition protects bank margins at consumer expense, citing the 0.01–0.50% APY offered by most traditional savings accounts versus 3.5–5.0% available through stablecoin rewards.
The data suggests both sides overstate their case. The White House's $2.1 billion lending impact figure may undercount behavioral responses during rate-competitive periods. The ABA's one-fifth lending reduction requires assumptions about stablecoin adoption that have not materialized at current market sizes. What is measurable: Tether earned $1.04 billion in Q1 2026 profit, Coinbase earned $305 million in stablecoin revenue, and the national average savings rate remains 0.50%.
Three regulatory comment periods (OCC closed May 1, FDIC closing June 9, and the CLARITY Act heading to the Senate floor) will determine the boundary between permitted rewards and prohibited yield. The distinction — and the trillions in deposits that may or may not move — rests on a single regulatory line: what constitutes "economic or functional equivalence" to a bank deposit.