GENIUS Act Reserve Requirements: What Counts as Stablecoin Backing

What the GENIUS Act actually says about stablecoin reserves

The Guiding and Establishing National Innovation for U.S. Stablecoins, commonly shortened to the GENIUS Act, is the federal framework that defines what a payment stablecoin is and what an issuer must hold to back every token in circulation. The reserve section is the spine of the law. If an asset is not on the permitted list, an issuer cannot use it to back a stablecoin that falls under the statute.

The permitted list is deliberately short. An issuer may hold only (1) U.S. currency and funds on deposit at a Federal Reserve Bank, (2) funds on deposit at an insured depository institution that can be withdrawn on demand, (3) Treasury bills issued by the United States with a remaining maturity of 93 days or less at the time of purchase, and (4) repurchase agreements collateralized by the preceding categories, with the same short maturity limit applied to the underlying collateral. That list is exhaustive for the federal pathway, and state regimes are required to keep parity with it.

Three things are conspicuously absent. Commercial paper is out. Bank certificates of deposit longer than overnight are out. And any second cryptocurrency, whether Bitcoin, Ether, tokenized treasuries, or a basket of foreign sovereigns, is out. The statute treats the reserve as a cash-equivalent liquidity buffer, not an investment portfolio, and the permitted-instruments list encodes that view directly.

Why the reserve rules matter before anything else

Reserve composition is where stablecoin failures have actually happened in the last decade, so it is where regulators concentrated the new rules. A stablecoin is a liability of its issuer that promises redemption at par. If the assets backing that promise cannot be converted to dollars quickly at a known price, the peg breaks and holders absorb the loss.

Three historical examples illustrate the failure modes the law is built to prevent. TerraUSD collapsed in May 2022 because its algorithmic reserve was not a reserve at all, but a floating basket of a volatile sister token, and that basket could not meet redemptions when confidence fell. The algorithmic design is now explicitly outside the law's definition of a payment stablecoin.

Iron (TITAN) and a series of smaller algorithmic tokens failed in the same period for the same structural reason, no high-quality liquid assets behind the promise. A different failure mode hit a centralized yield product in 2022, where customer balances were commingled with proprietary trading losses and could not be returned in full. Commingling is also restricted under the GENIUS Act, which requires that reserves be segregated from the issuer's general estate in bankruptcy.

There is also a quieter risk that the law does not eliminate. Even short-dated Treasuries can mark down in a liquidity crisis, as they did briefly in March 2020. The 93-day maturity cap and the overnight repo limit cut that risk sharply but do not remove it. Holders of USDC, USD1, PYUSD, or RLUSD should understand that the backing is high-quality and near-cash, but it is not the same as holding dollars at the Federal Reserve.

The permitted reserve assets, item by item

Cash and central bank deposits are the simplest category. U.S. currency held by the issuer and balances at a Federal Reserve Bank count at face value. Balances at insured depository institutions that are withdrawable on demand also count, which captures most bank operating accounts. Time deposits and certificates of deposit with a term longer than overnight are not on the list and therefore cannot be counted as reserves.

Treasury bills with a remaining maturity of 93 days or less form the bulk of most existing compliant reserves. The 93-day window is a hard cutoff. A bill with 95 days to maturity at the time of acquisition cannot count toward the reserve requirement, even if it will roll inside the cutoff the next day. This forces issuers to roll their Treasury portfolios continuously rather than reach for yield further out the curve.

Repurchase agreements are permitted only when collateralized by the categories above and only when the underlying collateral itself meets the maturity test. In practice that means overnight or very short-dated repo against T-bills. Longer-dated tri-party repo backed by longer-dated collateral is not permitted, which closes a door some issuers had explored in earlier rule drafts.

Repo also introduces counterparty consideration. The law requires that repo counterparties be financial institutions subject to prudential regulation, and the collateral must be held in a manner that protects the issuer's rehypothecation risk. Reverse repo, where the issuer is the cash lender rather than the cash borrower, is treated the same way and counts toward the reserve only when the collateral received meets the maturity and quality tests.

What is not permitted is just as important as what is. The following assets cannot be used to back a GENIUS Act stablecoin:

• Commercial paper, including asset-backed commercial paper.
• Corporate bonds, municipal bonds, and agency mortgage-backed securities.
• Money market fund shares, even short-term government funds, because the statute does not list them.
• Equity, commodities, real estate, and any security not issued directly by the U.S. Treasury.
• Other cryptocurrencies, tokenized treasuries issued by private parties, and foreign sovereign debt.

This closed-list approach is a deliberate break from the original draft, which left room for the Treasury Secretary to add additional categories by rule. The enacted version tightens that discretion by anchoring the permitted assets in the statute itself.

What changed from the original draft to the enacted text

Early drafts of the GENIUS Act floated a broader permitted-asset list that included insured deposits at any duration and a wider Treasury maturity window. The enacted text narrowed both, partly in response to banking industry concerns that stablecoin issuers were draining deposits from the regulated banking system, and partly to keep the reserve definition consistent with how regulators define high-quality liquid assets under the bank liquidity coverage ratio.

A second change concerns yield. Earlier discussion drafts were silent on whether issuers could share reserve earnings with tokenholders. The enacted text explicitly prohibits non-bank issuers from paying any form of interest, reward, or other return to holders of the stablecoin that is funded by the reserve assets. The same prohibition does not apply to insured depository institutions that issue stablecoins under a bank-subsidiary structure, which the law treats under existing banking rules.

A third change tightened the audit cadence. Drafts contemplated quarterly attestations. The enacted text moves to monthly attestations, with the results publicly disclosed, and keeps an annual audit performed by an independent registered public accounting firm. That is a meaningful operational change for issuers, who now must produce a reserve attestation roughly every 30 days rather than every 90.

A fourth change adjusted the threshold for the federal pathway. The original draft set a lower cap, but the enacted text sets the threshold at $10 billion in outstanding payment stablecoins, above which an issuer must use the federal regulatory pathway. State pathways are available below that threshold, but the federal regulator can pull a state-regulated issuer onto the federal pathway if the state regime is found inadequate or if the issuer crosses the cap.

Finally, the reciprocity language for foreign issuers was narrowed. Earlier drafts contemplated a reciprocity model in which any regime deemed comparable would qualify. The enacted text requires a formal determination by the Treasury Secretary, with explicit findings on capital, liquidity, consumer protection, and information sharing, and it gives the Secretary authority to revoke a foreign issuer's authorization if those conditions stop being met.

State vs federal pathway: who supervises whom

An issuer can operate under either of two pathways. Below $10 billion in outstanding payment stablecoins, the issuer may choose to be supervised by a state regulator that has been certified by the Secretary of the Treasury as having a regime substantially similar to the federal rules. Above that threshold, the issuer must operate under the federal pathway and obtain a license from the primary federal regulator, which is the Office of the Comptroller of the Currency for national trust bank charters and a similar federal charter for non-depository issuers.

The state pathway is not a soft option. A state regime must require segregated reserves, monthly attestations, redemption at par within one business day, capital and liquidity standards that mirror the federal rules, and disclosure of the same items the federal regime requires. If a state regulator falls out of compliance with those standards, the federal regulator can step in and pull the issuer into the federal pathway.

For an established issuer like Circle, which issues USDC and reports well above the $10 billion threshold, the federal pathway is effectively mandatory. The same applies to Paxos, which issues PYUSD, and to Ripple, which issues RLUSD. World Liberty Financial's USD1 sits at a different scale and would qualify for the state pathway if its issuance stayed below the cap, although the company's public statements indicate a federal pathway preference.

Reciprocity for foreign issuers works through a separate mechanism. A foreign issuer can serve U.S. customers only if its home regime has been formally recognized, the issuer itself has been approved by the Treasury Secretary, and the issuer consents to U.S. jurisdiction and information sharing. The Secretary can revoke that approval at any time and must do so if the home regime's protections fall below the federal standard.

The yield-passthrough ban and what it means for USDC, PYUSD, and friends

The single most consequential provision for U.S. holders is the yield-passthrough ban. Until now, several issuers effectively shared reserve earnings with holders through rewards programs, distribution partners, or tokenized wrappers that paid interest. Circle's USDC rewards program, for example, credited yield to certain holders based on a share of reserve income. Paxos has explored similar structures with banking partners.

Under the enacted text, a non-bank issuer cannot pay any return to holders that is funded, directly or indirectly, by the reserve assets. Rewards funded by the issuer's own revenue, such as a marketing subsidy, are not on the face of the statute prohibited, but rewards that are economically tied to Treasury yields are. The practical result is that users who expected to earn the federal funds rate on their stablecoin balances through the issuer will not earn it through the issuer after the transition period.

The bank-subsidiary path is the carve-out. An insured depository institution that issues stablecoins through a permitted subsidiary can continue to share yield under its existing regulatory framework, because banks are already subject to interest-related rules and the law defers to those rules rather than displacing them. This creates a structural advantage for bank-issued stablecoins in the yield dimension, and it is one reason several large banks have moved to launch their own tokens or partner with issuers.

For users, the practical question is whether the convenience of holding USDC, USD1, PYUSD, or RLUSD is worth forgoing the yield that used to come with it. The answer depends on what the user would do with the dollars otherwise. A user who would otherwise park funds in a high-yield savings account at 4 to 5 percent is giving up real money. A user who treats the stablecoin as payment-rail liquidity for trading, remittance, or on-chain activity is largely unaffected, because the alternative for those balances was a non-interest-bearing wallet.

How reserves are checked: monthly attestations, annual audits, and disclosure

The compliance backbone is layered. On a monthly cadence, an issuer must obtain an attestation from an independent registered public accounting firm confirming that the reserve assets match the outstanding stablecoin supply and that the assets fall within the permitted list. The attestation is a narrower review than a full audit, but it is a third-party check on a frequent basis, and the statute requires the attestation report to be published.

On an annual cadence, the issuer must obtain a full audit of its financial statements, including the reserve, performed by the same kind of firm. The annual audit examines controls, segregation, and the issuer's broader financial condition, not just the snapshot of reserve composition. Both the monthly attestations and the annual audit must be made available on the issuer's website, and the federal regulator can require additional public disclosure if it determines that holders need the information to assess risk.

The law also requires segregation. Reserve assets must be held in a bankruptcy-remote structure, meaning that in an issuer insolvency the reserves are not part of the general estate available to other creditors. This is the structural protection that failed for many customers of centralized crypto lenders in 2022 and 2023, and it is the single most important protection for a holder of any of the four tokens named in this article.

Finally, the redemption promise is standardized. A holder must be able to redeem at par in U.S. dollars within one business day of request, and the issuer cannot impose fees or conditions that would prevent a holder from exercising that right in practice. This rule is what makes the monthly attestations operationally meaningful, because a reserve that is hard to redeem is not really a reserve, and the law treats the two together.

Practical implications for issuers, holders, and partners

For issuers, the practical changes are operational rather than strategic. Treasury management becomes a rolling exercise, because the 93-day cap forces continuous reinvestment. Repo and bank counterparty exposure must be actively managed, because a single counterparty failure could create a temporary gap in the reserve. Monthly attestations require audit firms to staff a new cadence of work, and that cost will be passed through to issuers and ultimately to holders in the form of fees or spread.

For holders, the practical change is the loss of direct yield on non-bank-issued tokens, partially offset by the gain in structural protection. A user who wants yield on dollar balances now has three practical paths: use a bank-issued stablecoin where the program allows yield, deposit the dollars in a regulated bank or money market fund directly, or use a tokenized money market fund that wraps a permitted MMF share. None of these is a like-for-like substitute for the rewards programs that existed before the law.

For distribution partners, especially crypto exchanges, custodians, and wallets, the practical change is that the partner can no longer market a yield feature as a property of the stablecoin itself. A partner that wants to offer yield to users must source that yield from its own balance sheet, which is a different economics and a different risk profile. Some partners will absorb this and pass yield through, others will not, and the user experience will diverge accordingly.

How to follow stablecoin reserve news the smart way

Stablecoin reserve rules are evolving, and the operational details matter. Tracking which issuers have filed attestations, which state regulators have been certified, and how the Treasury Secretary is treating foreign reciprocity manually is a losing game. Zippfeed surfaces stablecoin and stablecoin-regulation headlines with sentiment scoring, bullish, neutral, or bearish, and an importance rating, so you can separate signal from noise and stay ahead of the next compliance change.