Following Mexico’s tax reform shift from ”formal review” to ”substantive look-through,” the type of tax ID a seller holds directly determines how much is withheld from each order. According to industry sources, Chinese cross-border sellers with offshore RFCs on Mercado Libre Mexico are typically subject to a 161 TP3T VAT withholding rate, with no income tax withheld; whereas sellers holding a local Mexican RFC and linked to a local bank account face a combined withholding rate of approximately 10.51 TP3T. The difference between the two is 5.5 percentage points; for stores with annual sales in the tens of millions of RMB, this translates to a cash difference of several hundred thousand.

Two Common Types of Legal Entities: S. de R.L. de C.V. and S.A. de C.V.

When Chinese sellers enter the Mexican market, the most common choice is S. de R.L. de C.V.(Limited Liability Company). Its structure is similar to that of a domestic limited liability company; shareholders' liability is limited to their capital contributions, and it offers operational flexibility, making it suitable for all aspects of cross-border e-commerce: imports, warehousing, invoicing, and hiring employees.

S.A. de C.V.(Corporation) is more suited to larger-scale businesses, has stricter governance requirements, and is ideal for sellers with future plans for financing or going public. As for SAS (Simplified Stock Company), industry sources indicate that the annual sales cap has been raised to approximately 7.67 million pesos; however, it requires all shareholders to hold an e.firma—an electronic signature issued by the Mexican Tax Authority. Since obtaining an e.firma typically requires local residency status, this option is rarely chosen by Chinese sellers.

Can Chinese investors hold shares in 100%?

Yes. Under Mexico’s Foreign Investment Law, there are no foreign ownership caps in most industries, and Chinese investors can hold 100% of the equity in Mexican companies, with the exception of a few sectors such as energy and broadcasting. This means you do’t need to find a local nominee to hold the shares on your behalf—butThe legal representative is a practical issueThe

There are two common approaches: either ”remotely managing” the process from within China, with a local lawyer or accountant serving as the legal representative; or handling the Mexican residency application yourself, acting as the legal representative and managing the e.firma tax account. The former option allows for a quick start and eliminates the need to travel abroad, but the downside is that setting up the company’s tax account and opening a bank account rely heavily on the legal representative’s cooperation; the latter offers the greatest control, but the process of obtaining a residency permit and a personal tax ID takes a relatively long time.

Three Key Considerations for Local Companies vs. Offshore RFCs

The first payment wasincome tax credit. As resident enterprises in Mexico, local companies can claim input VAT credits and deduct business expenses such as logistics, warehousing, advertising, and wages, and may also apply for VAT refunds; non-resident entities generally cannot claim such credits.

The second payment wasCFDI Invoice. Resident enterprises can freely issue official electronic invoices, which inspire greater trust among B2B customers and make it easier for them to claim tax credits.

The third entry isBusiness Boundaries. Local companies can import goods directly, set up warehouses, sign contracts, and hire employees without being subject to customs clearance restrictions for non-residents and without having to rely on third-party importers.

The implementation timeline and costs must be calculated in advance.

According to industry sources, RFC registration typically takes 4 to 8 weeks: preparing the documents takes about 3 weeks; obtaining the Hague Apostille takes about 3 weeks; local translation and legal notarization in Mexico take about 4 weeks; and then scheduling an in-person interview with the SAT. Obtaining the electronic certificate (CSF) takes an additional 2 to 3 weeks. Overall, it’s best to allow three months from the decision to register until you can issue invoices normally.

When is it worth signing up?

If your Mexico store has stable monthly sales, you’re already using a local warehouse or FBA, and you plan to operate long-term, the tax deductions and operational flexibility offered by a local company can typically offset the compliance costs. If you’re just testing product performance with small batches, it’s more practical to start by filing compliance reports through an offshore RFC.It is recommended to decide on the main focus early on, during the store structure design phase....rather than waiting until the cash flow is back on track before making changes.

Specific details are subject to official announcements by Mexico’s Ministry of Economy and the SAT. Qicaiying can assist in connecting you with local Mexican accountants and legal representatives, providing one-stop support ranging from entity formation and RFC registration to monthly tax filings.