1. What is MiCA?
The Markets in Crypto-Assets Regulation (MiCA) is an EU-wide legal framework for crypto-assets and crypto-asset service providers (CASPs). It was formally adopted by the European Parliament and Council in May 2023 and published in the Official Journal of the EU in June 2023. The regulation establishes a single, harmonised rulebook that applies across all 27 EU member states — replacing the patchwork of national crypto regulations that previously existed.
MiCA is a landmark piece of legislation for several reasons. It is the first regulation of its kind in scope and reach: no other jurisdiction has enacted a comprehensive crypto framework covering such a large economy in a single legal instrument. Its development was accelerated by a series of high-profile crypto collapses — most notably the Terra/Luna implosion in May 2022 and the FTX collapse in November 2022 — which heightened political pressure for consumer protection measures.
The regulation is directly applicable in EU member states without requiring transposition into national law, meaning the rules are identical in Germany, France, Spain, and every other EU member state. This harmonisation is one of MiCA's central selling points for crypto businesses, as it enables a single EU licence — or "passport" — to cover the entire bloc.
2. What MiCA Covers (and What It Doesn't)
MiCA applies to the issuance, offer to the public, and admission to trading of crypto-assets, as well as the provision of crypto-asset services within the EU. "Crypto-assets" under MiCA are defined broadly as digital representations of value or rights that can be transferred and stored electronically using distributed ledger or similar technology.
Crucially, MiCA explicitly excludes several asset categories from its scope:
- ▸Financial instruments under MiFID II: Security tokens and tokenised traditional financial instruments remain governed by MiFID II and related securities law, not MiCA.
- ▸NFTs (broadly): Non-fungible tokens that are unique and not interchangeable are largely outside MiCA's scope, though regulators can look through "NFT collections" that are effectively fungible.
- ▸Central Bank Digital Currencies (CBDCs): Digital euro and other CBDC projects are not subject to MiCA.
- ▸Fully decentralised protocols: DeFi protocols with no identifiable issuer or CASP are outside MiCA's direct scope, though the European Commission is required to report on DeFi regulation by 2025.
Bitcoin and Ether, as decentralised crypto-assets with no identifiable issuer, are covered under MiCA's "other crypto-assets" category when exchanged or custodied by a CASP, but their issuance is not subject to MiCA's whitepaper and disclosure requirements.
3. MiCA Token Categories: ART, EMT and Other Tokens
MiCA establishes three primary categories of crypto-assets, each subject to different regulatory requirements:
Asset-Referenced Tokens (ARTs)
ARTs are crypto-assets that reference the value of multiple fiat currencies, commodities, crypto-assets, or a basket thereof. They are designed to maintain a stable value by referencing these external assets. ARTs face the most stringent requirements under MiCA: issuers must be authorised by their national competent authority (NCA), hold sufficient reserve assets, comply with redemption rights obligations, and meet capital requirements.
ART issuers that reach "significant" thresholds (more than 10 million holders, more than €5 billion in reserves, or systemic importance) face additional supervision directly from the European Banking Authority (EBA).
E-Money Tokens (EMTs)
EMTs are crypto-assets that reference the value of a single official currency and are designed to maintain a stable value. They are the digital asset equivalent of electronic money. EMT issuers must be authorised as a credit institution or as an e-money institution under the EU's e-money directive.
Euro-pegged stablecoins such as EURS (Stasis Euro) are the primary example of EMTs. USDT and USDC, when operating in the EU, fall into this category relative to their dollar peg — although non-EU issuers face additional hurdles to operate under MiCA.
Other Crypto-Assets (Utility Tokens and Others)
All crypto-assets that are neither ARTs nor EMTs — including Bitcoin, Ether, utility tokens, and most project tokens — fall into this residual category. Issuers of these tokens must publish a crypto-asset whitepaper that meets MiCA's content requirements, notify their NCA, and comply with conduct-of-business and marketing communication rules. The requirements are lighter than those for ARTs and EMTs but still represent a significant compliance step for projects.
4. CASP Licensing: Who Needs It and What It Requires
Any entity providing crypto-asset services on a professional basis within the EU must be authorised as a Crypto-Asset Service Provider (CASP). MiCA defines ten categories of crypto-asset services:
To obtain a CASP authorisation, entities must apply to their home member state's NCA. The authorisation process covers governance requirements, prudential safeguards (minimum own funds and insurance), AML/KYC compliance, custody and safekeeping rules, conflict-of-interest policies, and business continuity arrangements.
Once authorised in one EU member state, a CASP can use the passport to operate across the entire EU without requiring separate licences in each country. This is one of MiCA's most commercially significant features, as it removes the compliance cost of maintaining 27 separate regulatory relationships.
Third-country CASPs (entities established outside the EU) can serve EU clients on a reverse solicitation basis — meaning if the EU client approached them first — but cannot actively market services to EU residents without a MiCA authorisation. The reverse solicitation carve-out is narrow and regulators have signalled they will scrutinise claims of reverse solicitation closely.
5. Stablecoin Rules Under MiCA
MiCA's stablecoin provisions — which apply to both ARTs and EMTs — are among its most consequential and most debated elements. The rules were designed in the shadow of the Terra/LUNA collapse and are primarily aimed at preventing systemic risk from algorithmic or insufficiently backed stablecoins.
Reserve Requirements
ART and EMT issuers must maintain reserve assets that fully cover the outstanding supply of tokens at all times. Reserve assets must be segregated from the issuer's own assets, held with credit institutions or other approved custodians, and subject to regular audits. Algorithmic stablecoins — which rely on arbitrage mechanisms rather than actual reserve assets — cannot qualify as ARTs or EMTs under MiCA and are effectively prohibited for EU offering.
Transaction Limits for Significant Tokens
One of MiCA's most controversial provisions is the cap on non-euro denominated stablecoins used as a means of exchange within the EU. Once a stablecoin is deemed "significant" (defined by size thresholds), transactions using it as a means of exchange within the EU are capped at 200 million transactions per day or €1 billion in daily transaction value. This provision was primarily aimed at preventing a foreign-currency stablecoin (such as USDT) from becoming a substitute for the euro in everyday transactions.
Impact on Major Stablecoins
Tether (USDT) and Circle (USDC) both faced the requirement to either obtain EU authorisation or restrict services to EU users. Tether initially declined to seek MiCA authorisation for USDT, leading several EU exchanges to delist it for EU retail clients. Circle obtained an EMT licence for USDC, making it MiCA-compliant. Several new euro-denominated stablecoins have emerged specifically to take advantage of the post-MiCA market landscape.
6. MiCA Timeline and Full Enforcement
The transitional period has been one of the most practically significant aspects of MiCA's rollout. Member states could allow previously-registered crypto businesses to continue operating for up to 18 months after December 2024 while their CASP applications were processed. As of early 2026, the longest transitional windows are closing and regulators are beginning to take action against firms that have not yet obtained authorisation.
7. MiCA vs FINMA: Operating in Both Regimes
Switzerland is not an EU member and MiCA does not apply directly to Swiss-incorporated entities. However, Swiss businesses that actively market services to EU residents or operate EU-based entities face MiCA compliance obligations. This dual-regime situation is particularly acute for Crypto Valley companies in Zug and Zurich, which often have significant EU customer bases.
| Aspect | MiCA (EU) | FINMA (Switzerland) |
|---|---|---|
| Legal basis | New bespoke EU regulation | Existing Swiss financial law |
| Token framework | ART / EMT / Other crypto-assets | Payment / Utility / Asset tokens |
| Licensing | CASP licence (EU passport) | Banking / FinTech / Securities / CISA |
| DeFi | Largely excluded (for now) | Look-through to controlling parties |
| Stablecoin cap | Yes — 200M tx/day for significant tokens | No explicit transaction cap |
| NFTs | Broadly excluded | Case-by-case assessment |
The practical response among many Crypto Valley businesses has been a two-entity structure: a Swiss foundation or AG for token issuance and FINMA-supervised activities, paired with an EU-incorporated CASP subsidiary for EU client-facing services. This approach satisfies both regulators while keeping Switzerland's favourable tax and regulatory environment. For a detailed breakdown of the Swiss framework, see our FINMA Crypto Regulation Guide.
8. What MiCA Means for Crypto Businesses and Investors
For Crypto Businesses
- ▸Single passport advantage: Businesses that obtain CASP authorisation in one EU member state can passport to all 27. This replaces the prior need to register separately in each jurisdiction, representing a significant compliance cost reduction for pan-European operators.
- ▸Compliance costs: MiCA compliance is not cheap. CASP authorisation requires building out legal, compliance, and operational infrastructure. Smaller businesses may find the cost prohibitive, accelerating consolidation in the industry.
- ▸Whitepaper obligations: All public offerings of crypto-assets in the EU require a MiCA-compliant whitepaper — similar to a prospectus — that must be notified to the relevant NCA. This applies to token projects regardless of their incorporation location if they target EU investors.
- ▸Market integrity rules: MiCA introduces insider trading and market manipulation prohibitions specifically for crypto markets — concepts borrowed from securities regulation but applied to the crypto context for the first time across the EU.
For Investors
- ▸Consumer protection: MiCA requires CASPs to act in clients' best interests, provide clear information about risks, maintain segregation of client assets, and maintain complaints procedures. These protections significantly raise the floor for EU retail investor protection in crypto.
- ▸Whitelisted exchanges: EU residents can more easily identify regulated exchanges — any CASP with a MiCA passport appears on ESMA's public register. Unregistered exchanges operating in the EU face regulatory action.
- ▸Stablecoin safety: MiCA's reserve requirements mean EMT and ART stablecoins available to EU investors must be fully backed and auditable — addressing the opacity that contributed to several high-profile stablecoin failures.