"Dirty" crypto: why buying USDT can get your card or account frozen
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A bank or wallet freezes an account when it sees money of unclear origin: third-party transfers, frequent P2P deals with strangers, receipts linked to fraud. "Dirty" is what people call USDT or pesos that have passed through stolen funds, fraud schemes or sanctioned addresses. You can lower the risk by paying and receiving money only from an account in your counterparty's name, working through registered services and keeping proof of each deal. This is information, not legal advice.
Why does the bank look at my crypto transactions at all?
Banks and payment services in Argentina are "obligated entities" under the anti-money-laundering law (Ley 25.246) and report to the UIF (Unidad de Información Financiera). They must identify the customer, monitor their transactions according to risk and report suspicious transactions to the UIF "sin demora alguna" (without any delay) (arts. 20-21 of Ley 25.246 as amended by Ley 27.739). Since March 2024, virtual asset service providers (PSAV, art. 20 item 13) are expressly on the list of obligated entities; the CNV keeps their register.
What most often gets accounts frozen?
- Third-party transfers. You sell USDT and the pesos come from the account of someone who is not your counterparty. For the bank this is a sign of "intermediation with other people's money".
- P2P arbitrage. Many incoming and outgoing transfers from different strangers. Argentine digital banks have publicly warned customers that such activity is prohibited by their terms and threatened to close accounts (for example, in 2021 Brubank wrote to a customer that "intermediación financiera con fondos de terceras personas" is not allowed, according to CriptoNoticias).
- The scammers' "triangle". A scammer sells goods to a victim and asks them to pay you, in exchange for your own USDT. The victim files a complaint, the bank freezes your account and you end up a party to the dispute.
- A freeze on the blockchain side. The issuer of USDT (Tether) may, under its terms, freeze tokens and blacklist an address, at the request of the law or government bodies or on suspicion of prohibited use (Terms of Service, tether.to); exchanges also block deposits from "flagged" addresses.
- Large or sudden receipts that don't look like your usual income.
How to check your counterparty in a USDT deal
- Name on the account = name of the exchange account. Accept payment only from an account whose owner matches the buyer on the exchange. The rules of the large P2P platforms say so directly: for example, on Binance P2P the account holder's name must match the verified name on the exchange, and payments to third parties are prohibited. If it doesn't match, return the payment and cancel the deal.
- History and rating in P2P: number of deals, completion rate, registration date.
- Don't accept "payment from my brother / wife / company".
- Don't agree to "payment in parts from different accounts".
- Is the service registered? Crypto services operating in Argentina must be in the CNV's PSAV register: search by name or CUIT at cnv.gov.ar/SitioWeb/RegistrosPublicos/Psav. Registration is a control on the anti-money-laundering side, not a guarantee of reliability.
- An exchange house with an office or a known track record is more reliable than a random person from a chat. Exchange house cards are in the "Currency exchange" section; ArgHub does not check the origin of funds and is not a party to the deal.
What to avoid in USDT deals
- Don't use your personal account as a "transit" account for other people's money, even for a percentage.
- Don't make many small P2P deals with strangers through one bank account.
- Don't accept USDT from people who rush you, offer a rate clearly better than the market ("Rates" in ArgHub) or ask you to "pass a payment through you".
- Don't send your seed phrase or codes to "support" on a messenger.
What to do if your account has already been frozen: • Contact the bank through an official channel and ask which documents it needs. • Prepare proof: your deal history on the exchange, correspondence, your counterparties' details, statements. • Don't open new accounts for the same operations until the matter is resolved. • First file a formal complaint with the bank and keep its number. If there is no reply after 10 working days, or the reply doesn't satisfy you, complain to the BCRA online (bcra.gob.ar, "Reclamar por productos o servicios financieros"; the BCRA is the second instance). • For a large sum, or if you were drawn into a fraud scheme, contact a lawyer. This is information, not advice.
Frequently asked questions
What is "dirty" USDT?
Tokens that have passed through fraud, theft or sanctioned addresses; they can be frozen by the issuer (Tether, under its own terms) or by an exchange.
Why did the bank close my account after P2P?
Many transfers from unknown third parties look like handling other people's money; the bank is required to check the origin of funds.
Can I accept payment from someone else's account?
Better not: accept only from an account in your counterparty's name.
How do I check a crypto service in Argentina?
In the PSAV register on the CNV website (cnv.gov.ar/SitioWeb/RegistrosPublicos/Psav).
Where do I complain about a bank?
First to the bank; if there is no decision within 10 working days, to the BCRA online.
Does ArgHub check exchange houses for AML?
No. ArgHub is a directory; deals and checks are the participants' own responsibility.