Stablecoin card regulation is two sets of rules applied to one product. The card sits under banking, e-money and card-network rules in the United States and the European Union. The stablecoin behind it sits under the GENIUS Act (Public Law 119-27) in the US and MiCA (Regulation (EU) 2023/1114) in the EU. Neither law creates a card license.
This post compares the two regimes where they touch a card and leaves the general rules to the GENIUS Act explainer and the MiCA explainer. For the card side in general, see what stablecoin card issuing is.
Two rulebooks sit on every stablecoin card
A bank or, in the EU, an e-money institution issues the card, a network routes it, and the issuer's regulator supervises it. That issuer is the regulated party in the program. A program manager or BIN sponsor is a role the issuer assigns under its own license, and how that role is split is a question for counsel. The balance behind the card is a stablecoin, a different legal object with a different regulator.
In the US, the text of Public Law 119-27 does not contain the word card. It defines a payment stablecoin, restricts who may issue one, and sets reserve and redemption rules for the issuer. The card stays under the issuing bank's regulator and the network rules. The enrolled text on govinfo.gov was searched for the word on November 1, 2026 and returned no match.
In the EU, MiCA reaches the card through the token. Article 48(2) says e-money tokens are deemed to be electronic money, and Article 48(3) applies Titles II and III of the e-money directive (Directive 2009/110/EC) to them. A euro or dollar stablecoin offered in the EU is an e-money token (Article 3(1) point (7)), and the card that spends it runs on the e-money and payment-services rules that already governed cards. The text is served by the Publications Office of the EU.
Card networks sit outside both laws, and they are moving. Visa launched USDC settlement in the United States on December 16, 2025. It changes how an issuer pays the network, not who the regulated issuer is. See Mastercard's move to stablecoin settlement and how stablecoin card transactions settle.
How do the US and EU rules compare for a card program?
For a card program the two regimes ask the same questions about the token and give different answers on who may issue it, who may hold it for a client and what the holder can claim.
The US and EU rules that touch a stablecoin card, read against the enacted text on November 1, 2026.
Question | United States | European Union |
Law for the token | GENIUS Act, Public Law 119-27, signed July 18, 2025 | MiCA, Regulation (EU) 2023/1114, Titles III and IV applying from June 30, 2024 |
Who may issue it | A permitted payment stablecoin issuer: a subsidiary of an insured bank, a Federal qualified issuer or a State qualified issuer (Sections 2 and 3) | A credit institution or an e-money institution that has notified a white paper (Article 48) |
Who may hold or convert it for a client | The act sets no license for holding a stablecoin for a client. Section 3(b) restricts offering a non-permitted one. Bank Secrecy Act and state-law treatment sit outside the act, for counsel | A crypto-asset service provider authorised under Article 59, or a bank or e-money institution notifying under Article 60 |
Reserves | At least 1 to 1 in listed assets such as cash, insured deposits and Treasuries of 93 days or less, with no rehypothecation (Section 4) | At least 30% in separate accounts at credit institutions, the rest in secure, low-risk assets in the same currency (Article 54) |
Redemption | A public redemption policy with timely procedures and disclosed fees (Section 4) | At par, at any time, on request, with no redemption fee (Article 49) |
Interest or yield | Issuer may not pay it solely for holding, use or retention (Section 4) | Issuers and service providers may not grant interest, and time-based benefits count as interest (Article 50) |
Deposit insurance | Not insured, and saying otherwise is unlawful (Section 4(e)) | White paper must warn that deposit-insurance schemes do not cover the token (Article 51(4)) |
Foreign token | Offered only if the issuer is permitted or a comparable foreign issuer (Sections 3(b) and 18) | Offered only by an authorised issuer, or others with its written consent (Article 48(1)) |
Dates | Effective January 18, 2027 at the latest, offer restriction from July 18, 2028 | In force. Provider transition ended by July 1, 2026 (Article 143(3)) |
Regulated party in a card program | The issuing bank, under its regulator; program manager and BIN sponsor roles sit under its license | The credit or e-money institution issuing the card, under its own authorisation |
Card side | Issuing bank and network rules, outside the act | E-money and payment-services rules, linked through Article 48 |
Which tokens can sit behind a card, and the dates
In the EU the answer is live: the token must come from an authorised issuer under Article 48, and the provider must hold Article 59 status. ESMA's interim MiCA register, updated October 30, 2026, lists e-money token issuers and service providers as CSV files, and it is where a program checks the legal entity behind a token.
In the US the answer is staged. Section 20 sets the effective date at the earlier of January 18, 2027 (18 months after enactment) or 120 days after final implementing rules. The Office of the Comptroller of the Currency published a final rule on October 23, 2026 for entities under its jurisdiction, effective January 18, 2027. Treasury's proposed rule on issuing and selling closed comments on October 19, 2026, and the Federal Reserve's proposal of September 29, 2026 stays open for comment until November 30, 2026.
The restriction that matters for a card is Section 3(b)(1): from July 18, 2028, a digital asset service provider may not offer or sell a payment stablecoin to a person in the US unless a permitted issuer issued it, subject to Sections 3(c) and 18. The USDC explainer and stablecoin explainer cover how the main dollar tokens are built.
On Lumx, the balance is USDC or USDT in a wallet that the docs describe as holding balances between on-ramps and off-ramps. Which token a card program spends from is the program's choice, and the question for any provider, Lumx included, is where that token's issuer stands under Section 3 or Section 18 in the US and Article 48 in the EU. For USDC, Circle is a GENIUS Act-compliant issuer, and Lumx holds its own mint account at Circle.
Interest and rewards on a card balance
Both laws ban the issuer from paying for holding, in different words. Section 4(a)(11) bars a permitted or foreign issuer from paying the holder "any form of interest or yield (whether in cash, tokens, or other consideration) solely in connection with the holding, use, or retention" of the stablecoin. MiCA Article 50 bars issuers from granting interest and, in paragraph 2, bars service providers from granting it on services related to e-money tokens. Paragraph 3 treats any benefit tied to how long a holder keeps the token as interest, including discounts with equivalent effect, from the issuer or from third parties.
Two differences matter for a card. The US text names the issuer only, so it does not say whether a program manager can pay a reward from its own revenue, and it includes the word "use", which a spending reward touches. The EU text reaches providers too, and its test is time held. Whether a scheme is caught is a question for counsel.
Lumx's part is the balance and the money in and out of it, not a program's reward.
What protects the holder of a card balance?
Neither regime puts a stablecoin balance inside deposit insurance. Section 4(e) says payment stablecoins may not be subject to FDIC or NCUA insurance and makes it unlawful to represent otherwise. The FDIC's fact sheet on deposit insurance and crypto companies warns that customers of crypto custodians or wallet providers may wrongly believe they are covered. In the EU, Article 51(4) requires the white paper to warn that the token is not covered by investor-compensation or deposit-insurance schemes.
The holder gets a redemption claim instead. Article 49 gives holders a claim on the issuer and a right to redeem at par at any time without a fee. The US act requires a public redemption policy and monthly publication of the reserve composition. A card can be issued by an insured bank while the balance behind it is not insured.
Lumx is not a bank, so a balance in a Lumx wallet is a stablecoin balance and not a deposit. The wallets are custodied by BitGo, which is insured, and each customer has separate wallets with no omnibus account. Lumx US OP LLC, a Wyoming company, is registered with FinCEN as an MSB (money services business, the FinCEN registration category). The entity wording is on the supported countries page, and the registration is explained in FinCEN MSB registration.
Identity and AML duties in a card program
Identification attaches at two points. The card issuer identifies every cardholder under its program rules, and the party that holds or moves the stablecoin carries AML duties of its own. Section 4(a)(5) treats a permitted issuer as a financial institution under the Bank Secrecy Act, with an AML program, record retention, suspicious-activity reporting and sanctions compliance. In the EU, Title V of MiCA puts authorisation and safeguarding duties on the service provider, and the card issuer stays under its own e-money or banking rules.
For a program, the useful output is a written split of who runs KYC (know your customer, the verification of an individual), who runs KYB (know your business, the verification of a company and its owners), who screens sanctions and who monitors transactions.
At Lumx, KYB and KYC run before any wallet or account is enabled: the docs state that wallets are enabled only once the customer reaches APPROVED, and the nested payments rule requires written compliance approval for any structure that moves funds for parties Lumx has not onboarded.
Two questions to ask before a launch
I tell card-program founders to write the diligence as two columns and not one. In the first goes the card: the issuing bank or e-money institution, its regulator, who runs identification. In the second goes the token: the issuer, its status under Section 3 or Article 48, and the provider that holds it. A program that can fill the first column and not the second has a card and no legal basis for the balance, and a regulator will ask about the second first. We ask for both columns before a corridor is priced, and we stop the conversation if the second stays empty.
When a stablecoin card is the wrong tool
A card pays merchants that take the network. It is the wrong tool when the payee needs a bank transfer, such as rent, payroll or supplier invoices, which go by ACH, FEDWIRE or SEPA. It is also wrong when the balance is meant to earn, because both laws bar the issuer from paying interest, and when nobody can name the issuer of the token behind it.
What top-up and cash-out look like around a US or EU card with Lumx
Lumx is stablecoin payments infrastructure for businesses that move money between Latin America and the rest of the world: one API to collect, hold, convert, and pay out in BRL, MXN, COP, USD, EUR, and GBP or in USDC and USDT, over local rails such as PIX, SPEI, PSE, Bre-B, ACH, FEDWIRE, SEPA, and Faster Payments, with SWIFT and on-behalf-of payments and collections (POBO and COBO) in USD, EUR, and GBP, plus named virtual accounts, custodial wallets, and KYB/KYC built in.
Lumx does not issue cards. Where a client runs a stablecoin card on an issuing platform, Lumx covers the two ends. The top-up is a deposit: the docs show an on-ramp created in advance with the exact amount, returning wire instructions for USD or an IBAN for EUR, and when the deposit matches, Lumx converts it to stablecoin and credits the customer's wallet. The USD to USDC page and the USDC to EUR page show the corridors. The coverage page lists rails and settlement times: FEDWIRE same day, ACH one to two business days, and SEPA on its instant rail, with a same or next business day exception for transfers of EUR 100,000 or more between 4:30 PM and 2:30 AM UK time.
The cash-out is an off-ramp from the same wallet to a bank account, which is how a cardholder or a business pays a landlord or a supplier without a card, over the rails on the global payments page. A client that pairs Lumx with Rain does it as a stack, not a partnership, and the Lumx and Rain comparison shows where each sits.
Methodology and sources
Public Law 119-27 was read on govinfo.gov on November 1, 2026, and section numbers come from the enrolled text. Regulation (EU) 2023/1114 was read the same day in the Official Journal text served by the Publications Office of the EU, because EUR-Lex returned an empty bot-check response; article numbers come from that original 2023 text, not a consolidated one. Rulemaking status was read from the Federal Register, and the Visa announcement, the FDIC fact sheet and ESMA's register page on the same date. PSD3 was not confirmed in a primary source, so the post covers the rules in force. Lumx product facts come from docs.lumx.io pages on wallets, coverage and nested payments, read the same day.
Verified on November 1, 2026. Operational context, not legal, tax, or investment advice. Public Law 119-27 (GENIUS Act) checked against govinfo.gov on November 1, 2026. Regulation (EU) 2023/1114 (MiCA) checked against the Publications Office of the EU on November 1, 2026.
Cover photo: Phil Hearing on Unsplash.
What does stablecoin card regulation cover in the US and EU?
It covers two layers. The card is regulated as a bank or e-money payment product under issuer and network rules, and the stablecoin behind it is regulated by the GENIUS Act in the US and by MiCA in the EU. Neither law creates a card license. Lumx does not issue cards, and it covers the top-up and cash-out around a client's card balance through its wallets, on-ramps and off-ramps.
Does the GENIUS Act apply to a card program?
Not to the card. The act's text never mentions cards, and it regulates the issuer of the payment stablecoin through reserve and redemption rules. A program is affected through the token it spends from, which from July 18, 2028 must come from a permitted or comparable foreign issuer if a service provider offers it to US persons. Lumx enables a wallet only once its customer reaches APPROVED.
Is a stablecoin card a MiCA matter in the EU?
Partly. MiCA governs the e-money token and the provider that holds or converts it, while the card runs on e-money and payment-services rules, which Article 48 links to the token by treating it as electronic money. Lumx makes no claim to EU authorisation, and its EUR flows run through a banking partner over SEPA.
Can a stablecoin card pay interest or rewards on the balance?
The issuer cannot pay interest or yield for holding the token under either law, and MiCA also bars service providers and counts time-based benefits as interest. Whether a spending reward is caught depends on who pays it and how it is tied, so it needs counsel in each jurisdiction. Lumx supplies the balance and the funding and cash-out around it, and does not design a client's reward scheme.
Is a stablecoin card balance insured in the US or EU?
No. The GENIUS Act says payment stablecoins are not subject to FDIC or NCUA insurance, and MiCA requires the token's white paper to warn that deposit-insurance schemes do not cover it. The holder has a redemption claim on the issuer. Lumx is not a bank, so a Lumx wallet balance is a stablecoin balance and not a deposit.
