The White House Council of Economic Advisers released a 21-page study on April 8, 2026 concluding that a blanket prohibition on stablecoin yield would increase U.S. bank lending by $2.1 billion — 0.02% of total loan volume — at a net welfare cost to consumers of $800 million. The cost-benefit rat...
"DeFi: earn 1% below T-bills and lose all your money once yearly." — James Christoph, Crypto Trader, March 2026
The White House Council of Economic Advisers released a 21-page study on April 8, 2026 concluding that a blanket prohibition on stablecoin yield would increase U.S. bank lending by $2.1 billion — 0.02% of total loan volume — at a net welfare cost to consumers of $800 million. The cost-benefit ratio: 6.6-to-1 against the ban.
The report lands in the middle of a four-way deadlock over the Digital Asset Market Clarity Act (CLARITY Act) in the U.S. Senate, where the stablecoin yield question has paralyzed legislative progress since January. The American Bankers Association has argued that permitting yield on stablecoin balances would drain deposits and destabilize credit creation. The CEA's model, calibrated with Federal Reserve and FDIC data, says the threat is "quantitatively small." The timing is pointed: the Senate Banking Committee returns from Easter recess on April 13 with a markup window in the second half of April.
Meanwhile, DeFi yields have collapsed below traditional savings rates. Aave, the largest decentralized lending protocol, offers 2.61% APY on USDC deposits — trailing the 3.14% available on idle cash at Interactive Brokers. The question of who gets to offer yield, and under what rules, carries real economic stakes for a $315 billion stablecoin market and the banking system that sits beside it.
The Council of Economic Advisers constructed a model using FDIC call report data, Federal Reserve deposit statistics, and academic estimates of consumer asset-switching behavior. The baseline findings:
The CEA stress-tested its model under worst-case assumptions: the stablecoin market grows to six times its current size relative to deposits, all reserves are locked in unlendable cash rather than Treasuries, and the Federal Reserve abandons its current monetary framework. Even under these implausible conditions, the model produces $531 billion in additional aggregate lending — a 4.4% increase. Community banks would see $129 billion (6.7% growth).
The report states directly: "a yield prohibition would do very little to protect bank lending, while forgoing the consumer benefits of competitive returns on stablecoin holdings." It adds that "the conditions for finding a positive welfare effect from prohibiting yield are simply implausible."
The study methodology draws on a 21-page analysis calibrated with Federal Reserve and FDIC data on deposits, lending, and bank liquidity, combined with industry disclosures on stablecoin reserves and academic estimates of how consumers shift funds between assets.
The Guiding and Establishing National Innovation for US Stablecoins Act (GENIUS Act), signed by President Trump on July 18, 2025, established the first federal stablecoin regulatory framework. Key provisions:
This loophole is the crux of the current fight. The GENIUS Act bans issuers from paying yield directly. It says nothing about platforms like Coinbase or Stripe offering yield products built on top of stablecoins. The CLARITY Act is meant to close — or codify — that gap.
The Digital Asset Market Clarity Act sits at the center of a four-way fight in the Senate:
Camp 1 — Crypto industry and allies: Want a federal market-structure bill that gives crypto firms a workable regulatory path, including the ability for third parties to offer yield on stablecoins.
Camp 2 — Banking lobby (ABA and allies): Want to seal off stablecoin yield entirely and keep deposit economics from migrating out of the banking system. On March 5, 2026, the ABA formally rejected a White House-brokered compromise that would have allowed yield in limited peer-to-peer payment contexts. Standard Chartered analysts estimated a yield provision could redirect up to $500 billion in bank deposits toward stablecoin products by 2028.
Camp 3 — Regulators (SEC, CFTC): Have begun moving through their own channels, signing a new memorandum of understanding, establishing parallel frameworks.
Camp 4 — Structural critics: Argue the bill carves crypto out of core investor protections.
The Tillis-Alsobrooks compromise, announced March 20, 2026, attempts to thread the needle: passive yield earned simply for holding a stablecoin is banned; activity-based rewards tied to payments, transfers, or platform use remain permitted. Digital asset service providers — exchanges, brokers, and affiliated entities — are prohibited from offering yield "directly or indirectly on stablecoin balances, or in any manner that is economically or functionally equivalent to bank interest."
Key firms including Coinbase and Stripe have not fully accepted this text. The Senate Banking Committee markup is targeted for the second half of April after recess ends April 13. Senator Bernie Moreno has warned that missing the May window risks pushing comprehensive crypto legislation past the 2026 midterms — and potentially beyond.
The bill still faces five sequential hurdles: Banking Committee markup, a full Senate floor vote requiring 60 votes, reconciliation with the Agriculture Committee version, reconciliation with the House-passed version from July 2025, and presidential signature.
The stablecoin yield debate unfolds against a backdrop of collapsing DeFi returns. According to CoinDesk data published April 7, 2026:
| Platform / Asset | Current Yield (APY) | |---|---| | Aave USDC | 2.61% | | Aave USDT | 1.84% | | Lido stETH | 2.53% | | Ethena staked USDe | 3.47% | | Sky USDS Savings Rate | 3.75% | | Morpho Steakhouse USDC | 3.64% | | Aave sGHO | 5.13% | | Interactive Brokers (idle cash) | 3.14% | | U.S. high-yield savings accounts | up to 5.00% |
Aave's two largest stablecoin pools — USDT and USDC on Ethereum — yield just over 2% on a combined $8.5 billion in deposits. This is below the 3.14% available at Interactive Brokers for idle cash. As Morpho co-founder Paul Frambot noted: "Undifferentiated lending converges toward risk-free rates."
Ethena's staked USDe, which peaked above 40% APY and attracted $11 billion in TVL, has fallen to 3.47% with TVL at $3.6 billion. Organic on-chain yield has dried up; the remaining competitive rates (3.5%–6%) depend on Real-World Assets such as U.S. Treasuries and institutional credit. Investors absorb meaningful risks — including $2.47 billion in crypto exploits during H1 2025 alone — for returns that no longer offer a premium over government rates.
Sky's USDS Savings Rate at 3.75% has drawn $6.5 billion in deposits, while Morpho holds over $10 billion. These represent pockets of relative strength, but the trend is clear: DeFi's yield advantage over TradFi has compressed to near-zero for vanilla stablecoin deposits.
Total stablecoin supply reached $315 billion by the end of Q1 2026. Market composition:
USDC has outpaced USDT in growth for the second consecutive year, driven by institutional demand for regulated, compliant dollar-pegged tokens. Circle reported Q4 earnings with USDC circulation at $75.3 billion — a 72% increase year-over-year — sending its stock up 16%.
Treasury Secretary Scott Bessent has stated the stablecoin market could reach $3.7 trillion by decade's end. At current growth rates, supply could increase by $240 billion in 2026 alone. This projection underlies the banking sector's concern: a multi-trillion-dollar stablecoin market offering yield could meaningfully compete for deposits that currently fund bank lending.
The CEA study exposes a fundamental tension in the value chain of dollar-denominated digital assets. Stablecoin issuers collect reserves (Treasuries, cash, reverse repos) that generate yield — Tether reported $13 billion in 2024 profits from its reserve portfolio. Under the GENIUS Act, none of that yield flows to stablecoin holders. It accrues entirely to issuers.
The question is whether intermediaries — exchanges, wallets, DeFi protocols — should be permitted to create yield products on top of stablecoins, effectively competing with bank deposit accounts. The CEA's answer is that the economic cost of prohibiting this competition ($800 million in consumer welfare loss) substantially exceeds the benefit (0.02% increase in bank lending).
From a value-distribution perspective, the current framework concentrates yield extraction with stablecoin issuers while prohibiting pass-through to end users. The CLARITY Act's resolution of this question will determine whether the $315 billion stablecoin market operates as a closed value loop (yield stays with issuers) or an open one (yield is redistributed to holders through intermediaries).
The banking sector's $500 billion deposit-flight estimate from Standard Chartered, if accurate, would represent roughly 2.6% of the $19.1 trillion in U.S. commercial bank deposits as of Q4 2025. The CEA model suggests this is an overestimate by an order of magnitude at current stablecoin market size, though it acknowledges the dynamic could shift as stablecoins scale.
The CEA finds a stablecoin yield ban adds 0.02% to bank lending at a cost of $800M in consumer welfare loss. The cost-benefit ratio of 6.6-to-1 makes the economic case for a ban weak under baseline conditions.
The CLARITY Act faces a four-way deadlock with a shrinking legislative window. The Tillis-Alsobrooks compromise bans passive yield but permits activity-based rewards. Key firms have not signed on. Missing the May window could delay action past the 2026 midterms.
DeFi yields have collapsed below traditional savings rates. Aave's 2.61% USDC rate trails Interactive Brokers' 3.14%. Organic on-chain yield has largely converged to or below risk-free rates, leaving the yield advantage with RWA-backed products.
The stablecoin market hit $315B in Q1 2026. USDC grew 72% year-over-year. If Treasury's $3.7T projection materializes, the yield question scales from a $315B issue to a multi-trillion-dollar structural decision.
The GENIUS Act created a yield gap that the CLARITY Act must now resolve. Issuers profit from reserves but cannot pass yield to holders. Whether intermediaries can fill that role is the central legislative question.
The White House CEA study reframes the stablecoin yield debate from a qualitative argument about systemic risk to a quantitative one about marginal lending impact. At 0.02%, the bank lending benefit of a yield prohibition is difficult to justify against $800 million in foregone consumer welfare.
The data does not resolve the legislative impasse. The ABA's concerns extend beyond the CEA's baseline model — they involve tail risks and precedent effects that compound as the stablecoin market grows from $315 billion toward the Treasury's $3.7 trillion target. Standard Chartered's $500 billion deposit-flight estimate remains contested but unrefuted.
What the data does clarify is the immediate cost of inaction. DeFi yields have fallen below TradFi savings rates. The organic yield advantage that once drew capital on-chain has compressed to near-zero. The remaining competitive returns depend on Treasury yields and institutional credit — precisely the asset classes that underpin bank lending.
The Senate returns April 13. The Banking Committee markup window follows. Whether the CLARITY Act passes, stalls, or dies in committee, the economic forces driving stablecoin adoption — $315 billion in supply, 72% YoY USDC growth, institutional demand for regulated digital dollars — continue regardless of the legislative outcome. The question is not whether stablecoins will compete with bank deposits. The question is under what rules.