MiCA vs GENIUS Act: Stablecoin Rules Compared

Two rulebooks for the same idea

Stablecoins are a global product on a patchwork of national regulators. Two of the most consequential rulebooks are now sitting on opposite sides of the Atlantic: MiCA in the European Union and the GENIUS Act in the United States. They both try to solve the same problem, which is how to let a private issuer print a dollar- or euro-denominated token without the blow-up risk that has followed unregulated stablecoins in the past. They get to different answers.

MiCA, the Markets in Crypto-Assets Regulation, came into full effect in 2024 and treats regulated stablecoins as a regulated financial instrument. Issuers of asset-referenced tokens (ARTs) and e-money tokens (EMTs) must be authorized, hold capital, segregate reserves, and follow disclosure rules. The GENIUS Act, formally the Guiding and Establishing National Innovation for US Stablecoins, passed the US Senate in June 2025 and is now working through the House. Its draft text proposes a federal license for payment stablecoins with its own reserve, disclosure, and compliance rules, while preempting state money-transmitter licensing for issuers that opt in.

Neither framework is a global standard, and neither covers every jurisdiction. A founder, a lawyer, or a user trying to figure out which regime applies usually lands on three questions: where the issuer is based, where the reserves are held, and where the user is located. The side-by-side below is built around those questions, not around vibes.

Scope and definitions

MiCA divides crypto-assets into three buckets: asset-referenced tokens, e-money tokens, and other crypto-assets. Asset-referenced tokens aim to maintain a stable value by referencing one or more fiat currencies, commodities, or other assets. E-money tokens are a subcategory that reference a single fiat currency, which is what most people mean when they say stablecoin. MiCA also carves out a separate category for significant ARTs and EMTs when they meet size, transaction-volume, or cross-border-use thresholds, with stricter oversight from the European Banking Authority.

The GENIUS Act focuses more narrowly on payment stablecoins, defined as digital assets used as a means of payment, redemption at par, and backed by reserves. Algorithmic stablecoins that fail the par-redemption test are excluded from the permitted-payment-stablecoin definition. The bill explicitly does not classify permitted payment stablecoins as securities, which is the central question that US courts and the SEC have been wrestling with since 2021.

The practical difference is that MiCA was designed to cover a broad crypto-asset market and uses stablecoins as one slice. GENIUS is a single-asset law aimed squarely at dollar stablecoins and leaves the broader crypto-asset question to other legislation and to the SEC and CFTC. For a USDC or USDT issuer, that means their EU subsidiary faces a MiCA-style test, while their US parent faces GENIUS, with overlap on some provisions and silence on others.

Authorization and capital

Under MiCA, issuers of EMTs must be authorized as credit institutions or as e-money institutions under the existing E-Money Directive. ART issuers must be authorized as credit institutions under the Capital Requirements Regulation, which is a heavier bar. Both must meet initial capital requirements, maintain an ongoing capital buffer, and submit a white paper to their national competent authority before issuing to the public. MiCA's significant-token regime layers additional capital, governance, and interoperability requirements once a token crosses defined thresholds.

GENIUS proposes a separate federal license for permitted payment stablecoin issuers, available to subsidiaries of insured depository institutions and to qualifying non-bank issuers that meet capital, liquidity, and risk-management tests. The draft sets a baseline capital floor for non-bank applicants that is lower than MiCA's credit-institution threshold in absolute terms but higher than the typical state money-transmitter bond. Holders of federal bank charters can issue under their existing regulator, which is the path most US banks are expected to take.

The capital question matters because it dictates who can actually enter. MiCA's credit-institution route is a serious bar that most non-bank crypto-native issuers cannot clear without a partner. GENIUS's non-bank track is friendlier to crypto-native firms but still requires an exam, ongoing reporting, and a board-level risk function. Both regimes reject the free-for-all model that existed before 2022.

Reserves: composition, location, and segregation

Reserve rules are where the two frameworks diverge most clearly. MiCA requires that ART and EMT reserves be held in high-quality liquid assets, segregated from the issuer's own funds, and invested in assets that minimize market and credit risk. Cash, deposits at credit institutions, and high-quality government bonds are explicitly permitted. Reserve assets must be denominated in the same currency as the referenced fiat where possible, and the legal and operational segregation must be robust enough to protect holders in issuer insolvency.

GENIUS takes a similar but more permissive line. The draft requires 1:1 reserve backing with assets that include US dollars, short-dated US Treasuries with maturities of 90 days or less, repo agreements collateralized by Treasuries, central bank deposits, and similar cash-equivalent instruments. The reserve list is broader than MiCA's, the duration allowance is explicit, and the bill contemplates that the Treasury and primary regulators will refine the allowed-asset menu through rulemaking.

Reserve location is the underrated battleground. MiCA's e-money regime and many national implementations effectively require that a meaningful portion of reserves be held in the European Union or in jurisdictions with equivalent supervisory regimes, partly to support timely redemption for EU holders. GENIUS, by contrast, is anchored in US Treasuries and US bank custody, with no comparable EU-reserve requirement. For an issuer serving both regions, that often means two segregated reserve pools, two custodians, and two reconciliation trails.

Segregation rules also differ in detail. MiCA insists that reserve assets be held by a separate legal entity, typically a custodian or a segregated portfolio, with a clear bankruptcy-remoteness structure. GENIUS requires segregation but leaves more of the operational mechanics to forthcoming rulemaking, which has prompted industry comments arguing for tighter rules on what counts as truly segregated versus nominally segregated. The October 2025 and earlier post-2022 collapses like TerraUSD and the depeg of USDC during the Silicon Valley Bank failure are the recurring reference points for both drafts.

Yield, interest, and what issuers can pay holders

This is the rule that surprises most readers. MiCA prohibits issuers of ARTs and EMTs from granting interest to token holders, directly or indirectly, in connection with the offering, distribution, or trading of the token. The ban is part of the MiCA text itself, not a delegated act, which makes it hard to soften without reopening the regulation. The intent is to keep stablecoins a payment instrument rather than a deposit-like savings product, and to keep them outside the deposit-guarantee regime.

GENIUS is silent on the question of yield to holders. The bill focuses on what issuers can hold as reserves and what they must disclose, but does not directly prohibit a compliant issuer from running a rewards program funded by reserve interest. In practice, several major issuers already run some form of rewards or cashback, and the legal question has been whether those programs look more like interest payments or like marketing promotions. Under GENIUS, the answer leans toward permissibility, provided the underlying token is a permitted payment stablecoin and disclosures are clear.

The asymmetry matters for product design. A euro stablecoin issuer under MiCA cannot meaningfully reward holders with yield on the token itself, so most rewards in the EU live on the application layer, where exchanges, wallets, or DeFi protocols offer return products on top of the token. A US issuer under GENIUS can route reserve yield to holders more directly, which compresses the spread between holding cash in a stablecoin and holding a money-market fund. Both models have their own risk profile, but EU users should not expect EU-issued EMTs to pay interest, while US users should expect that to change as GENIUS-compliant products come to market.

Risk and failure modes

No rulebook removes the risk that a stablecoin loses its peg, and the post-2022 history is full of examples. The honest educator view is that MiCA and GENIUS each reduce specific risks while leaving others intact, and that users should understand the failure modes that regulation does not cover.

Reserve quality is the obvious one. Both frameworks require 1:1 backing, but neither guarantees that the assets are liquid at the moment holders want to redeem. The USDC depeg during the SVB failure in March 2023 was not a reserve-composition problem, since reserves were invested in Treasuries and cash, but a settlement-timing problem, since the issuer could not move funds quickly enough to meet redemptions. MiCA's stricter segregation and EU-reserve tilt reduces, but does not eliminate, that risk. GENIUS's reliance on overnight repo and short-dated Treasuries reduces duration risk but concentrates redemption-channel risk in US bank plumbing.

Custody and segregation failure is the second big risk. If a custodian fails, segregated reserves should in principle be returned to holders or to the issuer's estate for distribution, but the legal mechanics vary by jurisdiction. MiCA's segregation rules are tested under EU insolvency law, which is generally friendly to segregated asset pools. GENIUS's segregation is still being defined in rulemaking, and several recent issuer failures have exposed gaps when segregation is contractual rather than structural.

Counterparty risk on the issuer itself is the third risk. Both regimes impose governance and risk-management requirements, but neither acts as a deposit insurer. If a GENIUS-licensed issuer fails with insufficient reserves, holders become general creditors of the issuer estate, not depositors with FDIC claims. The same is true under MiCA, where EMT holders are creditors in the issuer's insolvency rather than depositors of an insured bank. The promise of a regulated stablecoin is that the probability of loss is lower, not that loss is impossible.

Finally, jurisdictional mismatch is a quiet risk for users. A user in the EU holding a US-issued stablecoin, or a US user holding an EU-issued one, sits at the intersection of two regimes. Depending on the product and the marketing, neither regulator may treat the user as a domestic holder with full local protections. The Zippfeed CTA at the end of this article includes ways to track which regime is governing which token as the situation evolves.

Practical implications for users, issuers, and builders

If you are a user, the practical question is which regime covers your token, what protections you have, and what you should expect in a depeg. A MiCA-authorized EMT issued by a licensed e-money institution in, say, France, gives you a regulated issuer, EU-currency reserves, and EU segregation law. You will not earn yield on the token itself. A GENIUS-licensed USDC issued by a federally licensed non-bank gives you a US regulator, US Treasury reserves, and the option to earn rewards through a compliant program. You are betting on US bank plumbing and on the issuer's ongoing compliance.

If you are a founder or an issuer, the math is more involved. EU issuance forces a credit-institution or e-money-institution partner, capital buffers sized to the credit-institution regime, and a no-yield product. US issuance under GENIUS is open to non-bank applicants with a lower capital floor, a broader reserve menu, and a permissive yield posture, but it ties you to US bank custody and to ongoing federal examinations. Cross-border issuance, which is most major stablecoins, means two parallel compliance programs, two white papers or disclosure documents, and two regulator relationships.

If you are a lawyer, the most useful framing is to read both regimes as a coordination problem. MiCA tries to be a one-stop shop inside the EU and accepts friction at the border. GENIUS tries to set a federal floor that preempts state money-transmitter rules but leaves cross-border questions to other tools, including the Banking Secrecy Act, OFAC, and Treasury guidance. The next two years of rulemaking will determine how cleanly the two regimes interoperate for cross-border products.

Cross-border reality: non-US issuers serving EU users, and vice versa

This is where most of the legal complexity lives. MiCA explicitly contemplates that issuers outside the EU can serve EU users, but only through an EU-authorized entity and only if the token's white paper has been notified into the EU. Major issuers like Circle and Tether have moved to bring EU-issued versions of their tokens to market under MiCA-compliant structures, often by setting up an EU subsidiary, partnering with an EU-licensed e-money institution, and maintaining a dedicated EU reserve pool.

For US issuers serving EU users under MiCA, the practical path has been to obtain an e-money license in an EU member state, segregate an EU reserve pool, and issue a separate euro-referencing or EU-labeled token. The same legal entity does not necessarily serve both markets, since the EU regulator wants local presence and local reserves, not a remote subsidiary that pipes US reserves across the Atlantic.

GENIUS's cross-border posture is less settled. The bill preempts state money-transmitter licensing for federally licensed issuers, but it does not in its current draft offer a clear pass-through for foreign issuers serving US users. Practically, that means a MiCA-authorized EMT can still face US state-by-state money-transmitter questions if it markets to US users, and the resolution of that tension is one of the open questions in the House version of the bill. Cross-border stablecoin regulation is an area where the regulatory perimeter is moving quickly, and Zippfeed's tracker is one way to follow it in real time.

For a non-US issuer, the safe course today is to assume that both regimes apply to any user the issuer markets to. Compliance teams at major issuers have built dual-track programs precisely because the regimes are not symmetric, and the cost of getting this wrong is high.

How to follow stablecoin regulation the smart way

Stablecoin regulation moves faster than most rule-making in traditional finance, and the next twelve months will bring a steady stream of guidance, rule-makings, and enforcement actions under both MiCA and GENIUS. Tracking it manually means following ESMA, the EBA, the US Treasury, the OCC, and the SEC at the same time, which is not a realistic job for most users or even for most founders. Zippfeed surfaces stablecoin headlines with sentiment scoring (bullish, neutral, or bearish) and an importance rating, so you can spot which developments actually move the market and which are routine noise.