The world’s five leading financial centres have now built stablecoin rulebooks that agree on one principle — 100% high-quality reserves — but split sharply on who may issue, and that issuer-eligibility divide, not the reserve rule, will decide where regulated dollar and yen stablecoins are actually minted.

Hong Kong’s grant of its first stablecoin issuer licences on April 10, 2026, to a consortium led by HSBC and Standard Chartered, closed the loop on a framework that took effect on August 1, 2025 — and crystallised a global pattern. Across Hong Kong, Singapore, Japan, the United States and the European Union, regulators have converged on full reserve backing while diverging on the gating question of who is allowed to issue a fiat-referenced token at all. This analysis maps the five regimes, the enforcement history that shaped them, and what the split means for issuers choosing a home jurisdiction.

Key Facts:

• Hong Kong’s Stablecoins Ordinance took effect August 1, 2025; the Hong Kong Monetary Authority (HKMA) granted the first licences on April 10, 2026, and requires minimum paid-up capital of HK$25 million — HKMA
• Singapore’s Monetary Authority of Singapore (MAS) single-currency stablecoin framework, finalised in August 2023, requires redemption at par within five business days and full reserve backing — MAS
• Japan’s Payment Services Act treats fiat-pegged tokens as “electronic payment instruments” (effective June 1, 2023); a rule recognising foreign trust-type stablecoins took effect June 1, 2026 — Japan Financial Services Agency (JFSA)
• The US GENIUS Act, enacted July 18, 2025, mandates 100% reserves, monthly attestations and CEO/CFO certifications across three issuer categories — US Congress
• The EU’s Markets in Crypto-Assets Regulation (MiCA) stablecoin titles for e-money tokens applied from June 30, 2024 — ESMA
• The Commodity Futures Trading Commission (CFTC) ordered Tether to pay a $41 million penalty on October 15, 2021 over misleading reserve claims — CFTC

Methodology and sources

This analysis draws on primary regulator documents — the HKMA’s stablecoin-issuer regime pages and Eddie Yue’s April 2026 commentary, the MAS stablecoin framework media release, the JFSA’s Payment Services Act amendments, the US GENIUS Act text and Office of the Comptroller of the Currency (OCC) rulemaking, and ESMA’s MiCA technical standards — supplemented by named law-firm client alerts (Sidley Austin, Davis Polk, Morgan Lewis) and the CFTC’s 2021 Tether order. The jurisdictional scope is five regimes (Hong Kong, Singapore, Japan, US, EU); the time window runs from the CFTC’s 2021 enforcement action to the HKMA’s first licence wave in April 2026. Figures are stated in the regulator’s original currency.

Where the five regimes agree: reserves and redemption

On the substance of backing, the convergence is near-total. Every one of the five regimes requires fiat-referenced stablecoins to be backed by 100% high-quality liquid assets, held in segregation, and redeemable at par. Hong Kong demands full backing with independent custody and periodic third-party audits; Singapore requires reserves in cash, cash equivalents or short-dated government debt with monthly published attestations; the GENIUS Act prohibits commingling and mandates monthly reserve attestations plus executive certifications. The reason for the consensus is written into enforcement history. When the CFTC fined Tether $41 million in 2021, it found the token had been fully backed for only 27.6% of a 26-month review period — the cautionary tale every subsequent framework was drafted to prevent.

“Under our regime, we have given importance to sound reserve backing and redemption reliability.”

— Chia Der Jiun, Managing Director, Monetary Authority of Singapore (MAS)

Where they split: who is allowed to issue

The divergence sits one level up, on issuer eligibility — and it is wide. Japan is the most restrictive: under its Payment Services Act, only licensed banks, registered money-transfer agents and trust companies may issue a redeemable fiat-pegged token. Hong Kong sits in the middle, opening issuance to any applicant that meets the HK$25 million capital floor and the HKMA’s governance bar, but signalling through its first wave — dominated by HSBC, Standard Chartered and large institutions — that the early bar is effectively bank-grade. Singapore conditions its coveted “MAS-regulated stablecoin” label on a Singapore-based issuer meeting capital, liquidity and business-restriction tests, but does not confine issuance to banks. The United States, under the GENIUS Act, threads all three: it permits insured-depository-institution subsidiaries, federally qualified non-bank issuers supervised by the OCC, and state-qualified issuers below a size threshold.

Who can issue a stablecoin in 2026? The answer now depends entirely on the flag. In Japan, only a bank, a trust company or a registered transfer agent; in Hong Kong, any licensed entity clearing a HK$25 million capital bar, though the first cohort is bank-led; in Singapore, a locally incorporated issuer that earns the MAS-regulated label; in the United States, one of three GENIUS Act issuer types spanning bank subsidiaries to state-qualified firms; and in the European Union, an authorised electronic-money or credit institution issuing an e-money token under MiCA. The reserve rule is nearly identical across all five. The eligibility rule is not — and for a prospective issuer, that gate, not the backing standard, is what determines whether a licence is even attainable.

The cross-jurisdictional map

Sources: HKMA, MAS, JFSA, US GENIUS Act, ESMA MiCA technical standards; CFTC order 8450-21. Last updated: June 15, 2026.

Why the issuer split matters more than the reserve rule

Because the backing standards have converged, competition between centres now runs almost entirely through eligibility and speed-to-licence. Japan’s bank-only model offers the strongest consumer protection but the narrowest issuer pool, which is why Tokyo has leaned on its June 2026 foreign-token rule to import liquidity rather than grow domestic issuers. Hong Kong’s open-on-paper, bank-led-in-practice approach is engineered to attract global institutions while keeping the first cohort small — Eddie Yue has stressed quality over quantity in the opening wave. Singapore’s label-based regime lets non-banks issue but makes the “MAS-regulated” designation the prize, betting that the brand value of the label disciplines the market. The United States offers the broadest menu of issuer types, which is why it is positioned to scale dollar-stablecoin issuance fastest once final GENIUS Act regulations land.

“We hope their promotion of regulated stablecoins will address pain points in financial and economic activities, create values for both individuals and businesses, and support the healthy development of digital assets in Hong Kong.”

— Eddie Yue, Chief Executive, Hong Kong Monetary Authority (HKMA)

The European Union sits apart again. Under MiCA, a fiat-backed stablecoin is an e-money token issued by an authorised electronic-money or credit institution, with issuance caps that throttle large non-euro tokens once they pass usage thresholds — a structural brake that the Asian and US regimes do not share. The result is that the same USD-referenced token can be a permissible product in one jurisdiction, a restricted one in another, and require a bank charter in a third. For a comparison of how the EU and US deadlines themselves diverge, see our analysis of MiCA’s July 1 cliff and the GENIUS Act’s July 18 deadline and the EU’s MiCA 2 reopening.

What this means for issuers and compliance teams

For a firm choosing where to issue, the decision tree now starts with charter type, not reserve policy. A bank or bank subsidiary can issue almost anywhere; a non-bank fintech is gated out of Japan entirely, must clear capital and label tests in Singapore, can apply in Hong Kong but will compete with institutions for a small first cohort, and in the United States must pick between the OCC non-bank path and a state-qualified route below the size threshold. Compliance teams face a parallel problem in reserves reporting: monthly attestation cadences and audit standards differ in detail across the five regimes even though the headline “100% backing” is shared, so a multi-jurisdiction issuer must run to the strictest common denominator. The cross-border AML overlay adds a further layer, as our coverage of the FATF Travel Rule sunrise gap details, and Japan’s securities-law direction is mapped in our piece on Japan’s FIEA shift.

Enforcement: the lesson that built the rulebooks

Every reserve rule in force today is, in effect, a response to a failure of disclosure. The CFTC’s October 15, 2021 order against Tether — a $41 million penalty for representing the token as fully dollar-backed when reserves covered the float for barely a quarter of the period reviewed — set the template that monthly attestations and independent audits are now designed to make impossible to repeat. The 2022-2023 collapses of algorithmic and under-reserved tokens reinforced the point across every jurisdiction drafting at the time. The through-line is that regulators are policing the gap between what an issuer claims and what it holds; the licensing regimes simply move that verification upstream, before a token reaches the public, rather than after a collapse.

The forward view

Three threads will define the next phase. First, Hong Kong’s licence pipeline: the HKMA has signalled further, selective waves after the April 2026 cohort, and the composition of the second wave will reveal whether non-bank issuers can realistically clear the bar. Second, the United States: final GENIUS Act regulations from the OCC and federal banking agencies will set the effective date and determine how fast state-qualified and non-bank issuers can scale. Third, interoperability and recognition: Japan’s June 2026 move to recognise foreign trust-type stablecoins is an early test of whether regimes will passport each other’s tokens or wall them off, and Singapore’s label and the EU’s issuance caps pull in opposite directions on that question. The reserve debate is largely settled; the contest of the next 18 months is over recognition, eligibility, and which centre becomes the default home for regulated dollar issuance.

FAQ

Which countries now license stablecoin issuers?

Hong Kong (HKMA, first licences April 10, 2026), Singapore (MAS), Japan (JFSA), the United States (GENIUS Act, enacted July 18, 2025) and the European Union (MiCA, e-money token rules from June 30, 2024) all operate licensing or authorisation regimes for fiat-referenced stablecoins.

Do all the regimes require 100% reserves?

Yes. All five require full backing by high-quality liquid assets, segregation of reserves, and redemption at par. They differ on attestation cadence and audit detail, but the headline reserve standard has converged.

Why is Japan’s framework considered the strictest?

Japan limits issuance of redeemable fiat-pegged tokens to licensed banks, trust companies and registered money-transfer agents, the narrowest issuer pool of the five. Its June 1, 2026 rule recognising foreign trust-type stablecoins is a separate channel to import liquidity.

What capital does a Hong Kong stablecoin licence require?

The HKMA requires minimum paid-up share capital of HK$25 million, alongside 100% reserve backing, independent custody and periodic third-party audits. The first licences went to a consortium led by HSBC and Standard Chartered.

What does the US GENIUS Act change?

Enacted July 18, 2025, it establishes three permitted issuer types — insured-depository-institution subsidiaries, OCC-qualified non-banks, and state-qualified firms — with 100% reserves, monthly attestations and CEO/CFO certifications. Its effective date depends on final implementing regulations.

Why does the reserve rule matter less than the issuer rule?

Because the five regimes have converged on reserves, competition between centres now runs through eligibility and licensing speed. For an issuer, charter type determines where a licence is attainable; the backing standard is broadly the same wherever it applies.

This article is informational analysis only and does not constitute legal, regulatory, tax, or investment advice. Regulatory frameworks change frequently and interpretation depends on facts and circumstances; primary documents and official regulator guidance always supersede summaries. Firms should consult qualified legal counsel and their relevant supervisory authority before taking any action based on the analysis above.

Rick Steves

Rick Steves has seen business and economics through many lenses. He joined the financial services industry in 2009, and has been a financial journalist since 2011. He holds a degree in Business Administration and has experience producing real-time news, from both buy-side and sell-side, as well as for retail traders, brokers and service providers. Steves' work has appeared in a variety of online publications including FX Street, NewsBTC, FinanceFeeds, and The Industry Spread. Rick has great interest in the dynamics of the trading industry. The never-ending clash between technology, economics, regulation, and more importantly, the people.