Under MiCA, a stablecoin is only as sound as the assets behind it, and the regulation is prescriptive about what those assets must be, where they sit, and how a holder gets their money back. The mechanics differ depending on the type of token. This explainer sets out how backing works for electronic money tokens, how that differs from the “reserve of assets” regime that applies to asset-referenced tokens, and what the rules actually protect a holder against.
”Reserve of assets” is a precise term, not a general one
In everyday use, “reserve” describes any pool of assets an issuer holds to back its stablecoin. In MiCA, the phrase reserve of assets has a narrower, defined meaning, and it belongs to one specific category of token.
The Markets in Crypto-Assets Regulation (MiCAR, Regulation (EU) 2023/1114) splits stablecoins into two categories:
- Asset-referenced tokens (ARTs): tokens that reference a basket of currencies, assets, or commodities. These are governed by Title III, and it is the ART regime that uses the formal “reserve of assets” construct, set out in Article 36.
- Electronic money tokens (EMTs): tokens that reference a single official currency, such as EUR or USD. These are governed by Title IV, and they are backed through a different mechanism built on the electronic money framework.
Most stablecoins a business will encounter in payments, a EUR or USD token pegged one-to-one to that currency, are EMTs. So the practically important question is usually not “what is the reserve of assets”, but “how is an EMT backed”, which is what the rest of this explainer answers.
How an EMT is backed: safeguarding plus investment
When an issuer sells an EMT, it receives funds in the referenced currency. MiCA treats those funds as money that must be protected on the holder’s behalf, and it does so by layering two obligations.
First, the funds must be safeguarded. Article 54 of MiCAR requires that funds received in exchange for EMTs are safeguarded in line with Article 7(1) of the Electronic Money Directive (Directive 2009/110/EC). This is the same safeguarding standard that applies to traditional electronic money: the funds are kept separate from the issuer’s own money and cannot be used as working capital.
Second, those safeguarded funds are subject to investment restrictions. Article 54 requires that at least 30% of the funds received is always deposited in separate accounts at credit institutions, and that the remainder is invested only in secure, low-risk assets that qualify as highly liquid financial instruments with minimal market risk, credit risk, and concentration risk, denominated in the same currency the token references.
The effect is that every EMT in circulation is matched by identifiable funds that are held apart from the issuer, weighted toward cash at banks, and invested conservatively in the same currency as the token. The backing is not a claim on the issuer’s general business. It is a ring-fenced pool the issuer is required by law to maintain.
The redemption right is what makes the backing enforceable
Backing an EMT is only half of the protection. The other half is the holder’s legal ability to convert the token back into money.
Article 49 of MiCAR gives holders a right to redeem their EMTs at any moment, at par value, in the referenced currency. The issuer must make this possible, and the right cannot be waived or made conditional on the holder meeting a threshold. Redemption is a legal obligation on the issuer, not a service it chooses to offer.
Backing tells you the money exists. The redemption right is what lets a holder actually get it back, on demand and at face value.
Read together, Article 54 and Article 49 are what give an EMT its stability in substance rather than in name. The funds are safeguarded and conservatively invested, and the holder has an unconditional, on-demand claim to redeem at par against them.
No interest, by design
One feature of the EMT regime often surprises businesses new to it: an issuer cannot pay interest or yield on an EMT.
Article 50 of MiCAR prohibits issuers from granting interest in relation to electronic money tokens, and it treats any benefit tied to the length of time a holder holds the token as interest for this purpose. This mirrors the long-standing rule for traditional electronic money.
The rationale connects back to the backing. An EMT is a payment and settlement instrument backed by safeguarded funds, not a deposit or an investment product. Allowing yield would blur that line and create an incentive to hold tokens for return rather than to use them, which the framework deliberately avoids. Where a business is looking for a return on idle balances, that is a separate product question outside the EMT itself.
Redemption and recovery planning
The backing rules assume normal operations. MiCA also requires issuers to plan for the situations where operations are not normal.
EMT issuers must maintain a redemption plan describing how the issuer would honour redemptions in an orderly way, and a recovery plan setting out the measures the issuer would take to restore compliance if it came under stress. These plans are prepared for, and available to, the competent authority. For an issuer, they turn “the funds are backed” into a documented, supervised operational commitment rather than a static balance-sheet statement.
What this means for your business
For any stablecoin a business holds or settles in, the backing is not something to take on trust from a marketing page. Under MiCA it is a specific set of obligations, and they only apply if the token is a MiCA-authorised EMT (or ART) issued by an authorised institution. The diligence questions follow directly from the rules:
- Is the token an EMT issued by an authorised electronic money institution or credit institution?
- Are the funds safeguarded and invested under the Article 54 restrictions, weighted to cash at credit institutions?
- Is there an unconditional right to redeem at par, at any time, under Article 49?
If the answer to those is yes, the backing is a regulated obligation a business can rely on. If the token sits outside the MiCA perimeter, none of these protections apply, regardless of what the issuer says about its reserves.
Stable Mint issues EURSM and USDSM as MiCA Title IV compliant electronic money tokens under full EMI authorisation. The funds behind them are safeguarded and held at regulated European credit institutions, and redemption at par is unconditional. If you want to understand how the backing works in practice for the tokens in your payment or treasury flows, talk to our team.