Stablecoins Under MiCA: What You Actually Need to Know

MiCA splits stablecoins into two categories with very different rules. And if your stablecoin doesn't have real reserves, you have a problem.

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In a previous article, I mentioned that algorithmic stablecoins don't fit neatly into MiCA and promised to come back to the topic. Here we are.

But first, a quick detour through how MiCA handles the stablecoins it does regulate, because the framework only makes sense if you understand the two categories it creates.

MiCA Doesn't Say "Stablecoin"

The word doesn't appear in the regulation. Instead, MiCA creates two categories:

E-Money Tokens (EMTs) — pegged 1:1 to a single fiat currency. Think USDC or EURC. One token, one euro (or dollar). Simple.

Asset-Referenced Tokens (ARTs) — pegged to a basket of assets: multiple currencies, commodities, crypto-assets, or any mix. Think of a token backed by euros, dollars, and gold together.

The distinction sounds academic. It's not. It determines who can issue the token, what kind of reserves you need, and what rights holders have when they want their money back.

The Key Differences That Actually Matter

Who can issue. EMTs can only be issued by banks or authorized e-money institutions. That's a high bar. ARTs can be issued by any EU-authorized entity - still requires authorization, but you don't need to be a bank.

Reserves. Both require full backing with real assets. No exceptions. But EMTs must hold 1:1 fiat reserves, while ARTs maintain a reserve portfolio of liquid, low-risk assets matching the basket they reference.

Getting your money back. This is where it gets interesting. EMT holders can redeem at par value, at any time; you give back the token, you get one euro. Always. ART holders can also redeem, but at the market value of the reserve, not at a guaranteed fixed rate. The difference is subtle but significant in a crisis.

Interest. Neither ART nor EMT issuers can pay interest to holders. MiCA doesn't want stablecoins to become investment products.

What's Already Happened

The stablecoin rules have been live since June 2024. The impact was immediate.

ESMA told CASPs to stop offering non-compliant stablecoins, meaning tokens issued by entities without MiCA authorization. The deadline was Q1 2025. Several exchanges restricted or delisted certain stablecoins for EU users, most notably USDT, because Tether hasn't obtained EU authorization.

Compliant alternatives like Circle's EURC gained ground. The market adjusted faster than many expected.

The message was clear: if you're a CASP in the EU, you can only offer stablecoins from authorized issuers. If the issuer isn't authorized, the stablecoin comes off your platform.

The Algorithmic Problem

Now for the part I promised.

Algorithmic stablecoins try to maintain a stable value through code (mechanisms, incentives, mint-and-burn models) rather than through actual reserves. The most famous example was TerraUSD, which collapsed in May 2022 and wiped out around $40 billion.

MiCA was finalized in the shadow of that collapse. And it shows.

The problem is structural: MiCA's entire stablecoin framework is built on the concept of real reserves backing real tokens. Every requirement - authorization, reserve composition, audits, redemption rights - assumes there are actual assets sitting somewhere.

Algorithmic models don't have that. They have code. And code doesn't meet the reserve requirements.

So an algorithmic stablecoin can't get authorized as an EMT (no fiat reserves) or as an ART (no asset reserves). Without authorization, it can't be offered in the EU. Without being offered, CASPs can't list it.

MiCA doesn't explicitly ban algorithmic stablecoins. It just creates requirements they structurally cannot meet. The effect is the same.

The Grey Areas

Not everything fits cleanly:

Partially backed models — say, 70% reserves plus 30% algorithmic stabilization. Does that count? Probably not, because MiCA says "fully backed," and 70% isn't 100%.

Over-collateralized crypto models — like DAI, which holds more collateral than tokens issued, but that collateral is volatile crypto, not the low-risk liquid assets MiCA envisions. Whether this qualifies as a compliant ART reserve is an open question.

Fully decentralized protocols — if there's genuinely no identifiable issuer, MiCA might not apply at all (the DeFi exemption). But as I've covered before, truly decentralized is a very high bar.

The Bottom Line

If you're building a stablecoin for the EU market:

Single-currency peg with fiat reserves → EMT. You need to be a bank or e-money institution.

Multi-asset peg with real reserves → ART. You need EU authorization and an approved white paper.

Algorithmic with no reserves → not viable in EU regulated markets.

MiCA was written after Terra/LUNA. It reflects a clear policy preference: if you want to call something stable, back it with something real. Whether that's the right long-term approach is debatable. But for now, those are the rules.

This article is for informational purposes only and does not constitute legal advice. If you found this useful, I'd appreciate a share. For questions, thoughts, or just to say hello, you can find me on LinkedIn and X.