Senate Sets April Deadline for Stablecoin Bill Amid Coinbase Yield Dispute

The Senate Banking Committee will mark up the Digital Asset Market Clarity Act in the second half of April. Lummis, the lead Republican advocate for the bill, noted the committee will act immediately after the holiday recess. She has warned colleagues that the political window for crypto legislation is closing.

The schedule pressures a deadlock over how stablecoins generate profit. Coinbase has twice declined to support Senate drafts because of language that would cap passive yields. The company has shared its concerns with Senate offices regarding the current compromise text.

Coinbase has a massive financial stake in the outcome. The company generated roughly $1.35 billion in stablecoin-related revenue in 2025. That figure accounts for 19% of its total income and represents a 48% increase from 2024.

The Yield Bottleneck

A recent agreement in principle between Sens. Thom Tillis and Angela Alsobrooks would restrict passive yields. These are returns earned by users for simply holding a digital asset. The proposal only permits rewards tied to active uses like trading and liquidity provision.

Traditional banking groups are the primary backers of the yield cap. The American Bankers Association argues that high-yield stablecoins function as unregulated deposit alternatives. A Columbia Law School analysis found that these reward programs create a powerful incentive for deposit flight from community banks.

Coinbase CEO Brian Armstrong has remained firm in his opposition. He noted in January that the company would rather have no bill than a bad bill. Armstrong has warned Senate offices that the yield restrictions could slow institutional adoption and damage U.S. competitiveness.

Infrastructure Economics

Stablecoins like USDC have become core market infrastructure with a circulating supply near $78 billion. Circle, the issuer of USDC, earns interest on the Treasuries backing the asset and distributes a portion of that income to partners.

Coinbase captures the full yield on USDC held directly on its platform. Bloomberg Intelligence and on-chain analysts note that the company is the primary beneficiary of this structure.

On-chain data from Arkham Intelligence and Dune Analytics show holding patterns are already responding to the friction. Growth metrics for USDC have softened in the first quarter of 2026 as investors react to the legislative uncertainty. Capital may migrate toward offshore jurisdictions or permissionless protocols if the U.S. framework eliminates yield mechanisms.

The Markup Scenarios

The April session will force a compromise or a total collapse. Negotiators are currently considering narrow exceptions for custody-based yields to regain industry support.

Historical digital asset regulation has relied on enforcement actions by the Securities and Exchange Commission. The Clarity Act represents the first major bipartisan attempt at a formal statute. If the April markup fails to produce a consensus, the industry will likely remain under the existing regime of agency-led litigation.

Chain Street’s Take

The April markup is a game of chicken. By setting a hard date, Lummis is calling the bluff of the crypto industry. For years, platforms asked for a seat at the table. Now, the cost of that seat is a $1.3 billion revenue stream.

Coinbase frames its stance as a defense of innovation. The financial reality is that nearly a fifth of its revenue is tied to the current stablecoin model. Any law that forces a change to that model is a threat to the company’s bottom line.

Clarity is finally within reach. But to get it, Coinbase must give up high-margin products that the banking lobby views as a threat to their own deposits. The April markup will reveal who has more leverage in Washington: the legacy banks or the crypto incumbents.