Finance Featured

Can the World's Biggest Stablecoin Stay in America?

Treasury just published the rule that decides who may issue and sell digital dollars in the US. The clock now runs to July 2028 — when offering an unlicensed stablecoin to Americans becomes a federal crime. Tether's $183 billion has 23 months to choose.

Alpha One

18 Aug 2026 • 7 min read

This morning, the U.S. Treasury Department published a proposed rule in the Federal Register that reads like plumbing and functions like a border. It implements Section 3 of the GENIUS Act — the stablecoin law signed in July 2025 — and its job is to define three deceptively simple phrases: what it means for a digital dollar to be issued, offered, or sold in the United States.

Those definitions decide who is inside the American financial system and who is out. And they start a clock that ends on July 18, 2028 — the day it becomes a federal crime, punishable by fines of up to $1 million per violation and five years in prison, to put an unlicensed stablecoin in front of an American.

The largest stablecoin on Earth is not licensed in America. Tether's USDT — roughly $183 billion in circulating liabilities, backed by a reserve pile that includes more U.S. Treasury debt than most countries hold — is issued from El Salvador. The rule Treasury proposed today is, among other things, the machinery that will decide whether that arrangement survives.

What the rule actually does

The GENIUS Act, passed with bipartisan majorities and signed on July 18, 2025, created the first federal licensing regime for payment stablecoins: dollar-pegged tokens must be issued by a "permitted payment stablecoin issuer" — a bank subsidiary, an OCC-chartered nonbank, or a state-regulated issuer under a regime certified as comparable — and backed one-for-one with cash, short-term Treasury bills, and little else.

But a statute is only as sharp as its definitions, and Congress left the sharpening to Treasury. Today's proposal is that knife. It establishes the geographic and transactional perimeter: when a token sold on an offshore exchange to a U.S. person counts as "offered in the United States," when a foreign issuer's coin traded on secondary markets falls inside the ban, and what a "digital asset service provider" — the exchanges, wallets, and brokers who are the actual chokepoints — must verify about every stablecoin they carry.

Two dates anchor everything:

January 18, 2027 — the Act's effective date. From this point, issuing a payment stablecoin in the United States without a license is prohibited.
July 18, 2028 — the service-provider cutoff. From this point, exchanges and custodians may not offer or trade any stablecoin issued by a non-permitted issuer to U.S. persons.

The first date disciplines issuers. The second one is the real event: it deputizes every U.S.-facing exchange as an enforcement agent. After July 2028, an unlicensed stablecoin doesn't get banned by prosecutors token by token — it simply loses every regulated venue at once.

Treasury Secretary Scott Bessent framed the proposal as delivering "regulatory certainty businesses need to innovate and grow in America" and — the tell, repeated in nearly every statement Treasury makes on this subject — helping "cement the role of the U.S. dollar as the world's reserve currency."

Briefings like this land in members' inboxes before the market prices them in. Join free →

The Tether question

For Circle's USDC, U.S.-domiciled and built for exactly this regime, the rule is a moat being poured in real time. For the bank consortium coins JPMorgan and its peers have been assembling, it is a starting gun. The genuinely open question is Tether — and Tether has spent the past year behaving like a company that has read the statute closely.

Consider the sequence. Tether announced a separate U.S.-regulated token, USAT, to be issued through a federally chartered custodian — a structure designed to qualify as a permitted issuer while leaving the offshore USDT business untouched. It has kept publishing quarterly attestations showing reserves dominated by Treasury bills — roughly $141 billion in direct and indirect Treasury exposure as of the first quarter of 2026, a position that by itself ranks among the largest holders of U.S. government debt anywhere. And five days ago, on August 13, Tether crossed a line it had resisted for a decade: it released its first full independent audit, with KPMG confirming reserves exceeded liabilities and physically inspecting the company's gold.

A company does not submit to its first real audit in twelve years of existence for fun. It does it because the price of admission to the world's largest market is about to be written into the Code of Federal Regulations — and because the alternative paths are narrow.

Under the Act's foreign-issuer provisions, an offshore stablecoin can keep serving the U.S. market only if Treasury determines its home regulator is "comparable" to the U.S. regime, the issuer registers with the OCC, holds reserves sufficient for U.S. redemptions in a U.S. financial institution, and can demonstrate the technical capacity to comply with lawful orders — meaning it can freeze and seize tokens when a court tells it to. El Salvador's regulatory regime has no comparability determination. As of this spring, none had been issued to anyone.

The eurodollar echo

There is a precedent for what happens when Washington draws a perimeter around offshore dollars, and it is instructive in both directions. The eurodollar market — dollars held in banks beyond U.S. regulation — was never shut down. It grew into the largest funding market on the planet precisely because it sat outside the perimeter, and regulators tolerated it because it extended dollar dominance rather than threatening it.

USDT is the eurodollar of the crypto era: the default dollar in Lagos, Buenos Aires, and Istanbul, doing the vast majority of its volume outside the United States. Nothing in today's rule can touch a peer-to-peer transfer in São Paulo, and Treasury knows it. The GENIUS framework doesn't try to kill the offshore digital dollar — it tries to make the offshore dollar legible: auditable reserves, freeze capability, Treasury-bill backing. An offshore token that holds $140 billion of T-bills and honors U.S. court orders is not a threat to dollar dominance. It is an arm of it.

That is the lens for reading the rule's most interesting feature: Treasury gave itself case-by-case waiver authority over the secondary-trading ban for noncompliant foreign issuers. That discretion is leverage. Comply — audit, register, build the freeze switch — and keep the U.S. market. Refuse, and lose every regulated American venue in July 2028 while your competitors absorb the flow.

What it means for markets

For Treasury bills: the stablecoin bid for short-term government debt — already among the fastest-growing sources of demand at the front of the curve — now has a regulatory ratchet behind it. Permitted issuers must hold bills; foreign issuers seeking access must hold reserves in U.S. institutions. Every path to compliance runs through the bill market, at a moment when Washington is financing itself increasingly at the short end. The statute is, quietly, a captive-buyer program.

For the industry: the moat now has a construction date. Circle's entire equity story is that regulation is its distribution. Bank-issued tokens get a two-year runway to build while the incumbent's legal status is uncertain. Exchanges face a compliance decision tree for every listed stablecoin, with criminal exposure for getting it wrong — expect delistings to begin well before 2028, because no general counsel waits for a deadline that carries prison terms.

For Tether: the base case is bifurcation — a licensed USAT for Americans, an offshore USDT for everyone else, with the KPMG audit as the down payment on a comparability or waiver decision. The risk case is that the split drains U.S.-linked liquidity from USDT faster than the offshore franchise can absorb, testing the peg's premium venues. The tail case — an actual forced exit with reserve liquidation — is the one scenario nobody in Washington wants, because dumping nine figures of T-bills to fund redemptions would injure the very market the Act is designed to feed.

What to watch

The comment period closes October 19, 2026. Watch three things after that: whether Treasury issues its first comparability determination for any foreign jurisdiction (the template for Tether's path); how the final rule defines "offered in the United States" for VPN-reachable offshore venues (the loophole question); and whether the Digital Asset Market Clarity Act — still moving through Congress — rewrites pieces of GENIUS before the ink dries. Treasury itself concedes not every rule will be final by the January 2027 effective date, so transition relief is likely. The 2028 cliff is not.

A year ago, the stablecoin debate was about whether these tokens were dangerous. Today's rule ends that debate and replaces it with a different one: not whether digital dollars exist, but whose rules they obey. The perimeter is being drawn. Everything inside it becomes infrastructure. Everything outside it has 23 months to decide what it wants to be.

If this analysis was useful, this is what AlphaBriefing does every day — geopolitics and markets, connected to what it means for your money. Free members get the daily brief in their inbox; paid members get the investment frameworks, scenario pricing, and catalyst calendars behind the paywall.

Sign up free → — upgrade whenever it earns it.

Get this level of intelligence every day. Subscribe to AlphaBriefing — free, member, and paid tiers available.

Sources & Further Reading

Disclaimer

AlphaBriefing is an independent intelligence publication. The content in this article is produced for informational and educational purposes only. Nothing published by AlphaBriefing constitutes financial, investment, legal, tax, or regulatory advice, nor should it be construed as a solicitation or recommendation to buy, sell, or hold any security, asset, or financial instrument.

All views expressed are those of the author at the time of writing and are subject to change without notice. Markets are volatile and unpredictable; past performance is not indicative of future results. Any investment involves risk, including the possible loss of principal.

AlphaBriefing and its principals, employees, or contributors may hold positions in securities or assets mentioned in this article. This should be considered a potential conflict of interest. No material relationship with any company referenced exists unless explicitly disclosed. Readers should conduct their own due diligence and consult qualified financial, legal, and tax advisors before making any investment decisions.

Information in this article is drawn from public sources believed to be reliable at the time of publication. AlphaBriefing makes no warranty, express or implied, as to the accuracy, completeness, or timeliness of any information herein. AlphaBriefing accepts no liability for any loss or damage arising from reliance on this content.