Mexico's Fintech Law and crypto assets in business: CNBV, Banxico and SAT
Mexican law does not ban the virtual asset: it restricts who may offer it to the public.
A Mexican company invoicing in dollars wants to hold part of its treasury in a digital dollar and pay overseas suppliers with it. It asks its bank and the answer is no. It asks its accountant and the answer is "I think it is a grey area". Neither answer reflects what the rules actually say, and that confusion stalls decisions that are perfectly legitimate.
At Soulbit Academy we separate the two questions that almost always get mixed together: what a company may do, and what a financial institution may offer to the public. Mexican law is fairly clear on the second, and that clarity explains the market a company sees from outside. Soulbit is a stablecoin payments and treasury rail for businesses, not a bank and not a legal adviser.
What a virtual asset is under the Fintech Law
The starting point is article 30 of the Law to Regulate Financial Technology Institutions, published in 2018 and known as the Fintech Law. It defines a virtual asset as a representation of value recorded electronically and used among the public as a means of payment for all kinds of legal acts, whose transfer can only be carried out through electronic means.
The same rule expressly excludes national currency in circulation, foreign currencies and any other asset denominated in them. A dollar in a bank account is not a virtual asset; a digital dollar issued on a blockchain does enter the discussion.
The article then adds the decisive piece: financial technology institutions may only operate with the virtual assets determined by Banco de Mexico through general provisions. It also sets the criteria the central bank must weigh, among them how the public uses those digital units as a medium of exchange, a store of value and, where applicable, a unit of account.
Circular 4/2019 and why the bank says no
This is the answer to why a Mexican financial institution does not offer crypto assets to its clients.
Banco de Mexico's Circular 4/2019, published in March 2019 and addressed to credit institutions and financial technology institutions, establishes that they may conduct virtual asset operations only where these correspond to internal operations, and with prior authorisation from the central bank.
An internal operation means what is done behind the scenes to support the services the institution provides, or on its own account. The institution must describe the processes in which it plans to use virtual assets, including the personnel involved and their responsibilities, and justify why those operations do not constitute a direct offering of the service to its clients. It must also prevent the resulting risk from being transmitted to clients, directly or indirectly.
Does that mean crypto assets are banned in Mexico?
No, and the distinction matters. What the rule restricts is supervised institutions offering these assets to the public. It does not make holding or using them unlawful for a non-financial company. These are two separate planes: the regime governing financial institutions and the operating freedom of a commercial company. Confusing them leads businesses to discard legitimate operations and, at the other extreme, to assume there are no rules at all.
Where a non-financial company stands
The figure regulated by the Fintech Law is whoever provides financial services to the public: crowdfunding and electronic payment funds. A manufacturer, a consultancy or a software developer that collects from clients, holds treasury and pays suppliers is not providing those services: it is using a means for its own operation.
That distinction is not an automatic permission. If the activity edges toward exchanging virtual assets on behalf of third parties, holding them in custody for others or administering them, the classification changes and it needs review with Mexican legal counsel before scaling. The practical test is simple: is the company moving its own money, or somebody else's?
| Actor | What it may do | Rule that determines it |
|---|---|---|
| Bank or financial technology institution | Virtual asset operations only internally and with prior authorisation | Banco de Mexico Circular 4/2019 |
| Financial technology institution | Operate only with the virtual assets the central bank determines | Article 30 of the Fintech Law |
| Non-financial company | Use the asset in its own collection, treasury and payment operation | General commercial, tax and anti-money-laundering framework |
| Company operating on behalf of third parties | Requires specific legal analysis before operating | Depends on the concrete activity |
| Any of the above | Meet tax and anti-money-laundering obligations | SAT and UIF rules |
Tax: the SAT does not change with the payment method
A frequent confusion is assuming that collecting or paying in a digital asset alters the tax obligation. It does not.
The Mexican company still issues its digital tax receipt, recognises the income and takes deductions under the general rules. The payment method changes the speed and cost of the transfer, not the nature of the income or the moment it is recognised. And virtual asset transactions can create their own tax effects, such as differences from price fluctuation, which have to be recorded and explained.
There is also an obligation that often gets overlooked: consistency between what the company declares and what its operation shows. When the tax receipt says one thing and the flow of funds tells another story, the problem is not the digital asset but traceability. Which is why the file for each transaction should be assembled the same day, not when a review arrives.
The practical rule is to document every transaction exactly as you would any other: contract, tax receipt, transaction identifier, gross amount, fee and, where there was a conversion, the rate applied. Any specific treatment is worth validating with your accountant and against the SAT rules in force.
What a Mexican company can actually do today
With the framework clear, the concrete operation is bounded and checkable.
It can collect from overseas clients in USDC or USDT through payment links tied to each invoice, settling in minutes rather than days. It can hold treasury in digital dollars and decide when to convert. It can pay international suppliers and collaborators in other countries from a single balance. And it can reconcile every movement against a verifiable identifier.
There is a practical consequence worth planning for. Because the peso leg stays outside the platform, the company ends up running two circuits in parallel: the digital dollar circuit for cross-border flows and the ordinary banking circuit for everything local. That is not a workaround, it is the honest shape of the operation today, and treating it as such avoids the disappointment of expecting a single account to cover both.
What it cannot do with V1 is receive a deposit in Mexican pesos: the only local banking rail is Colombia. The detailed mechanics for the Mexican case are in receiving international payments in USDC in Mexico and in the crypto payments guide for Mexico.
| Need of the Mexican company | Covered by V1? | How it is resolved |
|---|---|---|
| Collect from abroad in USDC or USDT | Yes | Payment links and QRs tied to each invoice |
| Hold treasury in digital dollars | Yes | Business account with institutional custody |
| Pay suppliers and teams in other countries | Yes | Batch payments and recurring payroll |
| Convert to fiat | Yes, in USD, EUR and GBP | Conversion by quote on request |
| Deposit in Mexican pesos | No | The company handles it with its bank or currency broker |
| Cards, yield, token or native app | No | Outside the scope of V1 |
How to start without surprises
Where should a Mexican company begin?
With three steps in order. First, review with legal counsel whether the intended operation stays within own use of the asset or edges into reserved activities. Second, prepare the corporate file for the KYB verification process, which validates the entity, its business activity and its ultimate beneficial owners. Third, define the internal conversion policy: what percentage moves into pesos, how often and who approves it.
Before operating it is also worth choosing the asset deliberately, because not all stablecoins share the same structure or issuer profile. That comparison is in USDC vs USDT for companies, and the regional context in the crypto asset regulatory landscape in Latin America.
Frequently asked questions
What is a virtual asset under Mexican law?
Article 30 of the Law to Regulate Financial Technology Institutions defines it as a representation of value recorded electronically and used among the public as a means of payment for all kinds of legal acts, transferable only by electronic means. National currency and foreign currencies are expressly excluded.
Can a Mexican bank offer crypto assets to its clients?
Not directly. Banco de Mexico's Circular 4/2019 allows credit institutions and financial technology institutions to conduct virtual asset operations only where these are internal operations, with prior authorisation from the central bank, and requires them to prevent any resulting risk from reaching their clients.
Does a company using stablecoins become a financial technology institution?
In principle no. The regulated figure is whoever provides financial services to the public under the Fintech Law. A company collecting from clients, holding treasury and paying suppliers is using the asset for its own operation. Classification depends on the facts and should be validated with Mexican legal counsel.
Who decides which virtual assets may be used in Mexico?
Banco de Mexico, through general provisions. The Fintech Law itself states that financial technology institutions may only operate with the virtual assets the central bank determines, taking into account how the public uses them as a medium of exchange, store of value and, where applicable, unit of account.
Is there a local banking rail for Mexico in Soulbit V1?
No. The only local banking rail in V1 is Colombia. A Mexican company holds balances in stablecoins such as USDC and USDT plus fiat in USD, EUR and GBP, and handles the step into pesos with its own bank or currency broker, under whatever rules apply to it.
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