What is the GENIUS Act?
Brian Cubellis | Chief Strategy Officer
The GENIUS Act, signed by President Trump in July 2025, is the first federal framework for payment stablecoin issuance in the United States. It requires stablecoin issuers to hold 1:1 dollar backing, publish monthly attestations, keep reserves in cash or short-term US Treasuries, and submit to OCC supervision once they cross a $10 billion issuance threshold. It also bans issuers from paying interest directly to holders. In effect, the GENIUS Act does not regulate stablecoins so much as deploy them: it builds the rules for a regulated digital-dollar layer and, in the process, locks in a new structural buyer of US government debt.
This article explains what the GENIUS Act requires, what it builds, why the interest ban matters, the Treasury-demand consequence that follows from the reserve mandate, and why the two-layer monetary logic the Act sets in motion makes Bitcoin custody the base-layer counterpart to the velocity layer the law regulates.
What the GENIUS Act actually requires
The GENIUS Act, signed in July 2025, established the first federal framework for payment stablecoins in the United States. Before it, stablecoin issuance in America operated without a dedicated federal statute. The Act changes that by defining a clear set of conditions an issuer must meet.
There are four core requirements:
- 1:1 dollar backing. Every unit of stablecoin in circulation must be fully backed by an equivalent dollar of reserves. The token is a dollar substitute, not a fractional claim on one.
- Monthly attestations. Issuers must publish monthly attestations of their reserves, making the backing verifiable on a recurring cadence rather than left to assertion.
- Cash or short-term Treasury reserves. Reserves must be held in cash or short-term US Treasuries. The mandate is narrow by design: the backing assets are the most liquid, lowest-duration dollar instruments available.
- OCC supervision. Federally chartered issuers fall under the supervision of the Office of the Comptroller of the Currency.
The framework is tiered by size. Stablecoins under $10 billion in issuance can operate under state oversight. Above that threshold, federal regulation takes over. The $10 billion line is the point at which a state-supervised issuer becomes large enough that the federal regulator steps in.
The result is a regulated digital-dollar instrument: dollar-pegged, fully reserved, attested monthly, and supervised. It is the legal foundation for what the report calls the velocity layer of a two-layer digital monetary system.
What the GENIUS Act builds
The GENIUS Act is best understood not as a constraint on an existing market but as infrastructure for a new one. It creates the institutional plumbing for regulated digital-dollar payment rails.
The report describes the architecture being built as a two-layer digital monetary system: one layer for velocity, one layer for savings.
- The velocity layer. Dollar-pegged tokens for transactions, payments, settlement, and cross-border flows. Programmable, regulated, Treasury-backed, and designed for high turnover. This is the layer the GENIUS Act governs.
- The base layer. A digital commodity for store of value, with no issuer, a fixed supply, and bearer properties, designed to hold value across time. This is the layer Bitcoin occupies.
The report draws the analogy directly: bank notes for velocity, gold for the monetary base. The bearer instruments are different, but the structural logic is the same. What is new is the speed at which the digital version is being built and the global reach it can achieve.
The scale is already material. The report cites a $307 billion stablecoin market cap as of Q4 2025 and $33 trillion in stablecoin annual volume across 2025. The GENIUS Act is the framework that brings that existing velocity layer inside a federal perimeter.
Why the interest ban matters
A central feature of the GENIUS Act is that it banned stablecoin issuers from paying interest directly to holders. This is not a minor provision. It is the line that separates a payment instrument from a deposit substitute.
The report notes that the Act was deliberately narrow. It prohibited issuers from paying interest, but it did not address what exchanges and affiliated platforms could pay users for holding stablecoins on their platforms. That gap became the defining policy fight. As the report puts it, the framework needed a "Section 404" to close the loophole, because platforms such as Coinbase already pay USDC holders rewards on idle balances.
The interest ban matters for two reasons. First, it preserves the distinction between the velocity layer and the regulated banking system, keeping stablecoins as payment rails rather than yield-bearing accounts. Second, it shapes the entire subsequent debate over the CLARITY Act, which is where the question of platform rewards is being negotiated. The short version from the report: passive yield is banned; the unresolved question is what activity-based rewards are permitted. The GENIUS Act drew the first line, and everything downstream is an argument about where exactly it sits.
The Treasury-demand consequence
The most consequential effect of the GENIUS Act is not in the payments market. It is in the Treasury market.
Because every dollar of stablecoin issuance must be backed by short-duration US government debt, the reserve mandate is, in the report's framing, the locking-in of Treasury demand. It is not a recommendation. It is federal statute. Each new stablecoin dollar requires the issuer to hold an equivalent dollar of cash or short-term Treasuries, which means stablecoin growth is, mechanically, Treasury demand.
The numbers in the report show how large this already is:
- Tether alone holds approximately $150 billion in US Treasuries, placing it among the top 20 sovereign-equivalent holders of US debt globally. The report notes this is more than Germany, more than the United Arab Emirates, and approaching South Korea.
- Circle holds an additional $50 billion.
- Combined stablecoin reserves currently approach $250 billion.
- Standard Chartered projects this could reach $2 trillion by 2028 under base-case adoption assumptions.
The timing is the point. The report observes that this structural buyer is emerging precisely as foreign central bank holdings of US Treasuries have stagnated: China has reduced its holdings by over $100 billion in the past three years, Japan's holdings have flatlined, and several central banks have shifted record allocations into gold. The GENIUS Act ensures the Treasury gets a structural buyer whether or not foreign central banks cooperate.
This is why the report characterizes the Act as the dollar's digital strategy rather than a narrow piece of payments regulation. The reserve rule converts stablecoin adoption into Treasury demand by design.
GENIUS Act at a glance
| Dimension | What the GENIUS Act establishes |
|---|---|
| Signed | July 2025, by President Trump |
| What it regulates | Payment stablecoin issuance (the velocity layer) |
| Backing requirement | 1:1 dollar backing, fully reserved |
| Reserve assets | Cash or short-term US Treasuries |
| Disclosure | Monthly attestations of reserves |
| Federal supervisor | OCC, for federally chartered issuers |
| State vs federal threshold | Under $10B in issuance: state oversight. Above $10B: federal regulation |
| Interest | Issuers banned from paying interest directly to holders |
| Structural consequence | Locks in Treasury demand; combined reserves approach $250B, projected to $2T by 2028 |
The table makes the design legible. The GENIUS Act is a reserve-and-supervision regime for dollar substitutes, with a built-in mechanism that ties their growth to the market for US government debt.
Why the base layer is the counterpart to the velocity layer
The GENIUS Act regulates the velocity layer. It does not, and structurally cannot, address the base layer, because the two layers are built for opposite purposes.
The velocity layer is the dollar in motion: programmable, regulated, Treasury-backed, and designed for high turnover. It is excellent at moving value and, as the report makes clear, it inherits the dollar's economics. Stablecoins are dollar instruments. They carry the dollar's depreciation, and, because they have issuers, they can be frozen at the request of a sufficiently powerful authority. Those are not flaws in the design. They are the design. A velocity instrument is supposed to be controllable and dollar-denominated.
The base layer is the opposite by construction. The report describes Bitcoin as a digital commodity with no issuer, no controller, and no enforcement layer, with supply determined by mathematics rather than by any committee. The properties that make Bitcoin unsuitable as a velocity instrument, namely its fixed supply and bearer nature, are precisely the properties that make it suitable as the base layer where value is preserved across time.
For fiduciary capital allocators, the report's conclusion is uncomplicated: both layers have a role. The velocity layer is where dollar-denominated transactions settle. The base layer is where value is preserved. Only one of them holds purchasing power through the architecture itself.
This is where custody enters. If the base layer is where value is meant to be preserved, then the way that base-layer asset is held determines whether the architectural protection actually holds. A stablecoin's safeguard is the issuer's reserve and the regulator's supervision. Bitcoin has no issuer to stand behind it, which is the source of its neutrality and also the reason custody architecture, rather than issuer attestation, is what protects it.
Onramp's Multi-Institution Custody is the base-layer counterpart to the GENIUS Act's velocity-layer framework. Where the GENIUS Act protects a stablecoin holder through reserve requirements and OCC supervision over an issuer, Multi-Institution Custody protects a Bitcoin holder through structure: a 2-of-3 multisig quorum with keys held across Onramp, BitGo Trust, and CoinCover, three independent institutions, so that no single party, including Onramp, can move the assets unilaterally. As the report puts it, in a stack where value ultimately settles in the hardest money, the custody layer that protects it matters more than any other. For certain account types, Tetra Trust is available as an optional additional keyholder, though not for Bitcoin IRAs. A separate product, Onramp Finance, offers single-custodian custody with BitGo Trust and an upgrade path to Multi-Institution Custody.
The GENIUS Act builds the rails for the dollar in motion. The base layer is where value is meant to sit still, and the custody architecture is what keeps it there.
The bottom line
The GENIUS Act is the first federal framework for payment stablecoins in the United States: 1:1 dollar backing, monthly attestations, cash or short-term Treasury reserves, OCC supervision above a $10 billion threshold, and a ban on issuers paying interest directly. Its most consequential effect is structural. By requiring every stablecoin dollar to be backed by short-term US government debt, it locks in a new and growing buyer of Treasuries at exactly the moment foreign central banks are stepping back.
But the Act regulates only one layer. It builds the velocity layer, the regulated digital dollar designed to move. It does not touch the base layer, the neutral settlement asset designed to hold value across time. Understanding the GENIUS Act means understanding that distinction, and understanding that the protection mechanism is different for each layer: reserves and supervision for the dollar in motion, custody architecture for the value at rest.
The full architecture, including the dual-tier stablecoin structure, the Treasury-demand mechanism, and Bitcoin's regulatory emancipation under CLARITY, is laid out in The Stablecoin Stack research report.
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