USDT for Cross-Border E-Commerce: Legal Risks Every Seller Must Know

The legal status, in summary: holding USDT as an individual is not itself illegal. Trading it as a commodity at your own risk is theoretically permitted. But using USDT as a payment or settlement mechanism in the course of business — especially cross-border business — enters the zone of “illegal financial activity” under the 2021 Notice. And trading USDT for RMB with third parties at scale can trigger far more serious criminal provisions.

2. The Illegal Foreign Exchange Trading Red Line

Article 225 of the Criminal Law criminalizes “illegally engaging in fund payment and settlement business” without state approval. The 2019 SPC/SPP Judicial Interpretation (Fa Shi [2019] No. 1) provides the operational definition:

“Using acceptance terminals or online payment interfaces to pay monetary funds to designated payees through fictitious transactions, inflated pricing, transaction refunds, or other illegal methods” constitutes illegal fund payment and settlement.

Here is how this maps onto a typical USDT-based cross-border payment flow:

Seller A receives USD from overseas customers. Seller A buys USDT on an exchange. Seller A sends USDT to an OTC desk. The OTC desk sends RMB to Seller A’s Chinese bank account — or directly to Seller A’s supplier. This is, in substance, a cross-border fund settlement transaction conducted through USDT as an intermediary. The OTC desk is performing the economic function of a cross-border payment institution — without a license.

The monetary thresholds under the Judicial Interpretation are alarmingly low for any operating e-commerce business:

• “Serious circumstances” (五年以下有期徒刑): illegal business volume of RMB 5 million or more, or illegal gains of RMB 100,000 or more.
• “Particularly serious circumstances” (五年以上有期徒刑): illegal business volume of RMB 25 million or more, or illegal gains of RMB 500,000 or more.

A Shopify store doing USD 100,000 per month crosses the RMB 5 million threshold in under 18 months. The seller might never know they crossed it — until a bank account is frozen and the investigation begins.

The critical point: the offense does not require the seller to be the one operating the OTC desk or providing payment services to others. If a seller uses an unlicensed third-party USDT-to-RMB channel repeatedly and at volume, the seller may be investigated as a participant in — or beneficiary of — the illegal settlement scheme. The prosecutor’s theory: the seller knew or should have known that the OTC desk was operating without a license, and the seller’s repeated use of the service constitutes “abetting” the offense.

3. The Money Laundering Risk — and the AML Law’s New Reach

The revised Anti-Money Laundering Law (effective January 2025) and the Criminal Law Amendment XI (2021) have expanded money laundering exposure in two ways directly relevant to USDT users:

First: “Self-laundering” is now a standalone offense. Before the 2021 amendment, money laundering required “knowingly” assisting another person to launder the proceeds of predicate crimes. The 2021 amendment removed this limitation. An individual who commits a predicate offense and then launders the proceeds themselves can be convicted of both the predicate offense and money laundering — cumulative punishment.

How does this apply? If a seller’s USDT-to-RMB channel involves funds derived from fraud, gambling, or other predicate offenses — and the seller continues to use that channel after becoming aware of suspicious circumstances — the seller may face money laundering exposure. The “self-laundering” doctrine means that even if the seller is the victim of a frozen account, the seller’s conduct in attempting to move funds through alternative channels may itself create independent criminal exposure.

Second: “Cross-border transfer of assets” replaces “assisting in remitting funds abroad.” The 2021 amendment broadened the conduct element from one-way outward remittance to two-way cross-border transfer. Using USDT to move value from overseas to China falls squarely within this expanded definition.

Third: Non-bank payment institutions are now explicitly AML-obligated entities. This does not directly apply to individual sellers, but it means the entire payment ecosystem — including banks that receive RMB from OTC transactions — is subject to enhanced monitoring. Large or patterned deposits from OTC-related accounts are increasingly flagged, frozen, and reported.

4. Hong Kong: A Different Regulatory Universe — For Now

Hong Kong’s approach to virtual assets is fundamentally different from mainland China’s. Since June 2023, Hong Kong has operated a licensing regime for virtual asset trading platforms under the Anti-Money Laundering and Counter-Terrorist Financing Ordinance (AMLO). Licensed platforms may serve retail investors. Stablecoins are regulated under a forthcoming framework. The Hong Kong Monetary Authority (HKMA) has indicated that regulated stablecoin issuers will be permitted to operate under a licensing regime.

This creates a regulatory asymmetry that many sellers attempt to exploit: conduct USDT transactions through Hong Kong-licensed platforms, hold funds in Hong Kong bank accounts, and remit funds to mainland China through lawful channels.

This is not a loophole — it is a lawful structure, provided that:

• The USDT transactions occur on a Hong Kong-licensed platform;
• The Hong Kong entity or individual is the legal owner of the funds at each stage;
• RMB remittance into mainland China occurs through licensed cross-border payment channels or bank wire, with proper documentation of the underlying transaction;
• Tax obligations in both Hong Kong and mainland China are satisfied.

The risk is that many sellers operate this structure without the second and third elements — the Hong Kong entity and the licensed remittance channel — and instead use gray-market OTC desks in Hong Kong that are themselves unlicensed. Using an unlicensed OTC desk in Hong Kong carries similar (though jurisdictionally distinct) legal risks to using one in mainland China.

5. A Compliance Framework for Cross-Border Sellers

The following is not legal advice. It is a practical framework for sellers who use or are considering USDT in their cross-border payment flows to assess and reduce their risk.

Step 1: Map your actual funds flow. Write down, step by step, every entity that touches your money from customer payment to supplier settlement. For each step, answer: Who is the legal counterparty? Where are they incorporated? Are they licensed? What license do they hold? If the answer to “are they licensed” is “I don’t know” for any step, that step is your primary risk point.

Step 2: Replace unlicensed intermediaries with licensed ones. For the USDT-to-fiat leg, use only licensed exchanges — in jurisdictions where such licensing exists (Hong Kong, Singapore, the EU under MiCA, or licensed US MSBs). Do not use peer-to-peer OTC desks that operate without regulatory authorization, no matter how convenient or cheap they are. The cost savings are not worth the criminal exposure.

Step 3: Separate business accounts from personal accounts. Do not receive business-related RMB from USDT conversions into personal bank accounts. Open a dedicated business account. The volume and pattern of deposits will be flagged by the bank’s AML system regardless — but a business account with proper documentation of the underlying e-commerce revenue is far more defensible than a personal account receiving unexplained third-party transfers.

Step 4: Document the economic substance of every transaction. For every USDT-to-RMB conversion, retain: the source of the USDT (which exchange, which customer payment), the identity of the counterparty, the rate and amount, and the purpose of the resulting RMB transfer (supplier payment, operating expense, profit distribution). This documentation will not prevent a bank freeze — but it will dramatically improve your position in the investigation that follows.

Step 5: Consider the Hong Kong structure if your volume justifies it. For sellers with monthly revenue exceeding USD 50,000-100,000, establishing a Hong Kong company with a licensed corporate bank account and using Hong Kong-licensed virtual asset platforms is the most robust legal structure currently available. The cost (approximately HKD 15,000-30,000 per year for company maintenance, plus bank and licensing costs) is a fraction of the legal fees you will incur if your mainland accounts are frozen.

Step 6: Know the warning signs of a frozen account. Banks freeze accounts under AML suspicion without prior notice. Warning signs include: a bank staff member calling to ask about “unusual transactions,” a request to appear in person to verify identity or transaction details, a delay in processing a routine transfer, or a sudden request for source-of-funds documentation. If any of these occur, stop all USDT-related activity through that account immediately and engage counsel.

Conclusion

USDT is a powerful tool for cross-border e-commerce — fast, cheap, and global. It is also a magnet for regulatory scrutiny under China’s increasingly aggressive enforcement of foreign exchange, anti-money laundering, and virtual currency regulations. The legal risks are not hypothetical. Bank account freezes happen daily. Criminal investigations happen. The line between efficient cross-border settlement and illegal fund payment is drawn by three factors: whether the intermediaries are licensed, whether the funds flow is documented, and whether the structure respects the regulatory separation between mainland China and jurisdictions with lawful virtual asset frameworks.

If you are using USDT in your cross-border business and cannot answer “yes” to all three of those factors for every step in your funds flow, it is time to review your structure — before a bank compliance officer reviews it for you.

This article is an informational overview of the legal and regulatory environment affecting cross-border e-commerce sellers. It is based on publicly available laws, regulations, and enforcement practice. It is not legal advice and does not create an attorney-client relationship. Sellers should consult qualified legal counsel in the relevant jurisdictions before structuring cross-border payment arrangements.