Global Comparison

CLARITY Act vs. MiCA vs. UK: how U.S., EU, and UK crypto regulation compare

If you build, trade, or run compliance for a crypto business that touches more than one of these markets, "which regulation applies" isn't an academic question — it's already operational in one region, arriving on a fixed date in another, and still theoretical in the third. This page lays out the practical differences: who regulates what, how each treats stablecoins, how licensing actually works, and where each framework stands today. For the CLARITY Act specifically, see our plain-English explainer and section-by-section breakdown.

The core structural difference

MiCA is a single, unified regulation that applies across all 27 EU member states at once. A crypto-asset service provider (CASP) licensed in one member state — say, Ireland or Malta — can passport that license to operate across the entire bloc without separate approval in each country. It replaced a patchwork of national crypto rules with one framework.

The CLARITY Act doesn't attempt that kind of consolidation. It keeps the U.S.'s existing two-regulator model — the SEC and the CFTC — and draws a clearer line between them: the CFTC gets primary jurisdiction over "digital commodity" spot markets, while the SEC stays focused on tokens that function as investment contracts and on fraud enforcement generally. A token can graduate from securities treatment to commodity treatment once its underlying network meets the bill's "mature blockchain system" decentralization test (Sec. 202) — there's no equivalent graduation mechanism in MiCA, which classifies an asset by its economic function (payment-referencing, asset-referencing, or "other") rather than by how decentralized its network has become.

The UK takes a third approach: activity-based rather than asset-class-based. Instead of one license (MiCA) or a two-agency split (CLARITY), the FCA's final rules — published June 30, 2026 — require separate authorizations depending on what a firm actually does: issuing stablecoins, operating a Qualifying Cryptoasset Trading Platform (QCATP), or acting as an intermediary. The regime also introduces a new Market Abuse Regime for Cryptoassets (MARC), extending UK-style market-abuse enforcement to crypto trading for the first time. There's no EU-style passporting and, as of the rules published so far, no formal equivalence or recognition pathway for overseas platforms wanting to serve UK customers.

Who regulates what

Under MiCA, oversight is layered: National Competent Authorities (NCAs) in each member state handle day-to-day licensing and supervision, the European Securities and Markets Authority (ESMA) harmonizes rules and maintains EU-wide public registries, the European Banking Authority (EBA) specifically supervises stablecoin issuers, and the European Central Bank (ECB) is consulted on stablecoins large enough to be systemically important.

Under the CLARITY Act, oversight stays split between two agencies rather than layered across several: the CFTC would register and oversee digital commodity exchanges, brokers, and dealers, while the SEC continues overseeing securities offerings and anti-fraud enforcement for tokens that don't qualify as digital commodities. See our glossary for plain-English definitions of terms like "qualified custodian" and "primary market."

The UK splits oversight by function and by scale. The FCA is the primary regulator for every cryptoasset firm operating in the UK — it authorizes stablecoin issuers, QCATPs, and intermediaries, and leads on conduct issues like the Consumer Duty and financial crime. But once HM Treasury designates a stablecoin issuer as "systemic" — broadly, likely to be widely used for everyday retail and business payments — the Bank of England steps in alongside the FCA as a second regulator for that firm, taking the lead on prudential matters: reserve composition, capital requirements, and redemption timelines. It's a model closer to how the Bank of England and FCA already jointly oversee large UK banks than to either MiCA's single-issuer license or CLARITY's SEC/CFTC split.

How each treats stablecoins

MiCA splits stablecoins into two categories with strict rules: E-Money Tokens (EMTs), which must maintain full 1:1 backing to a single fiat currency, and Asset-Referenced Tokens (ARTs), which reference a basket of assets and face robust reserve-management requirements. Both need EBA-approved whitepapers and ongoing reserve oversight — a meaningfully higher bar than the "notification-only" whitepaper standard MiCA applies to other crypto-assets like Bitcoin or Ethereum.

The CLARITY Act takes a narrower approach: it defines a "permitted payment stablecoin" category (Sec. 301) and excludes it from the legal definition of a security. The SEC could oversee permitted payment stablecoins trading on SEC-registered platforms, but neither the SEC nor the CFTC would directly regulate a stablecoin issuer's operations under the bill — that's arguably a lighter federal touch than MiCA's EBA-supervised reserve regime, though U.S. state money-transmitter law and other federal stablecoin proposals can still apply separately.

The UK's approach is the most granular of the three once a stablecoin crosses the "systemic" threshold. Every issuer needs FCA authorization, but a systemic issuer additionally faces Bank of England backing-asset rules: 30% of reserves must sit as unremunerated deposits at the Bank of England, with the remaining 70% held in short-term UK government debt (maturing within six months), plus a temporary £40 billion issuance cap while the regime beds in. Issuers must notify the Bank if central-bank deposits fall below 25% for five consecutive business days, or below 20% at any point. Redemption timelines differ slightly between regulators too — the Bank of England requires redemption within 24 hours for systemic issuers, while the FCA's baseline standard for all issuers is "by the end of the next business day."

Where things actually stand today

This is the sharpest contrast among the three. MiCA isn't a proposal anymore — it's an operating regime with real consequences already playing out. Its transitional grandfathering period ended on July 1, 2026, and as of that deadline, 244 CASPs had been authorized across the EU, including major exchanges like Coinbase (licensed in Luxembourg), Kraken (Ireland), OKX and Crypto.com (Malta), and Binance (France). Roughly 70% of EU-based crypto transaction volume already flows through licensed venues. Firms that didn't secure a license faced real exits: Binance.com stopped accepting new orders and deposits from EU-verified users on July 1, 2026, after withdrawing its Malta license application weeks earlier. National regulators can now fine, suspend, or wind down any unauthorized provider still serving EU clients.

The UK sits in the middle: rules are finalized but not yet enforced. The FCA published its final cryptoasset-regime rules on June 30, 2026, and the Bank of England published its systemic-stablecoin policy statement on June 22, 2026, with a joint BoE/FCA regulatory-approach document following on June 30. But the regime's actual go-live date is October 25, 2027 — firms need FCA authorization on or after that date to keep operating in the UK, and recognized systemic issuers get a transition period of roughly 12–36 months on top of that to come into full compliance. In practice, nothing is enforceable in the UK yet; firms serving UK customers are in a planning-and-authorization window, not a live compliance one.

The CLARITY Act has no equivalent enforcement phase yet, because it isn't law. It passed the House 294-134 in July 2025, cleared the Senate Banking Committee 15-9 in May 2026, and has sat on the Senate calendar since June 1, 2026. It missed the widely watched August 7, 2026 recess deadline, and a floor vote is now expected in September 2026, needing roughly 7–10 Democratic crossovers to reach the 60 votes required for cloture. Track the latest on our Timeline & Updates page.

Quick comparison

Factor	EU — MiCA	UK — FCA regime	U.S. — CLARITY Act
Current status	Fully in force; enforcement phase active since July 1, 2026	Final rules published June 30, 2026; regime goes live Oct. 25, 2027	Passed House; pending Senate floor vote expected Sept. 2026
Structure	One unified EU-wide framework and license	Activity-based: separate authorizations per activity type	Existing SEC/CFTC split, with clearer jurisdictional lines
Licensing model	Single CASP license, passportable across 27 member states	FCA authorization per activity (issuer, QCATP, intermediary)	Registration with CFTC (digital commodities) or SEC (securities)
Classification test	By economic function (payment-referencing, asset-referencing, other)	By activity performed, not by asset class or network structure	By network decentralization ("mature blockchain system" test)
Stablecoin oversight	EBA-supervised; full reserve backing required (EMT/ART)	FCA for all issuers; Bank of England adds prudential rules for systemic issuers	"Permitted payment stablecoin" exclusion from securities law
Known exits/impact	Binance.com exited EU retail market as of July 1, 2026	Not yet applicable — regime not yet live	Not yet applicable — not law

What it means if you operate across these markets

For a builder or exchange with any EU exposure, MiCA compliance isn't optional planning anymore — it's already a licensing requirement with active enforcement. UK exposure sits one step behind: the rules are finalized and the shape of the regime is now known in detail, but nothing is enforceable until October 25, 2027, which gives firms a real window to prepare for a fixed date rather than an open-ended one. U.S. operations remain the least settled of the three — the practical posture is still "prepare for a framework that hasn't been finalized," since the CLARITY Act's registration, custody, and disclosure requirements don't take effect until it's signed into law and its compliance-timeline clock (see our effective-date ladder) starts running. That ordering is itself useful information: firms serving all three markets are, in practice, already building to the strictest, most-enforced standard (MiCA) first, using the UK's dated runway to plan a second track, and treating U.S. compliance as the most fluid of the three.

Frequently asked questions

Is MiCA already in effect, or is it still pending like the CLARITY Act?

MiCA is already fully in force. Its stablecoin rules took effect in June 2024, its CASP licensing regime opened in early 2025, and the transitional grandfathering period for existing providers ended on July 1, 2026, with no extensions. By that deadline, 244 CASPs had been authorized across the EU. The CLARITY Act, by contrast, has passed the U.S. House but not the Senate, and is not law as of this writing (August 19, 2026).

Does the CLARITY Act copy the EU's MiCA framework?

No, they're structurally different. MiCA is a single, unified EU-wide regulation with one licensing regime (a CASP license usable across all 27 member states) overseen by a layered structure of national regulators, ESMA, and the EBA. The CLARITY Act keeps the U.S.'s existing two-regulator model, splitting oversight between the SEC and CFTC based on whether a token qualifies as a "digital commodity," rather than creating one new unified regulator.

When does the UK's new crypto regulation take effect?

The UK's Financial Conduct Authority (FCA) published its final rules for the new cryptoasset regime on June 30, 2026, but the regime's full go-live date is October 25, 2027 — firms need FCA authorization by that date to keep operating. That puts the UK on a slower timeline than the EU's MiCA (already fully enforced since July 1, 2026) but on a similar footing to the CLARITY Act, which is still awaiting a U.S. Senate vote as of this writing.

Who regulates stablecoins in the UK — the FCA or the Bank of England?

Both, split by size and function. The FCA authorizes and oversees all stablecoin issuers and leads on conduct matters like consumer protection and financial crime. But issuers that HM Treasury designates as "systemic" — likely to be widely used for everyday retail and business payments — fall under joint Bank of England and FCA oversight, with the Bank of England taking the lead on prudential rules: backing-asset composition (a 30% central bank deposit / 70% short-term UK government debt split), capital requirements, and redemption timelines. The Bank of England published its policy statement on systemic stablecoins on June 22, 2026.