Translated legal documents for setting up a foreign company in Mexico

By Dr. Refugio A. Del Campo, court-appointed English–Spanish translator · October 17, 2026

When a foreign company decides to set up operations in Mexico, a surprising share of the timeline depends on one thing: having its corporate documents apostilled, complete and translated into Spanish by a perito traductor, the court-appointed translator recognized by Mexican authorities. Notaries, the Ministry of Economy (Secretaría de Economía), the tax authority (SAT) and the National Immigration Institute (INM) ask for these documents at different stages, and a problem with any one of them holds up everything else.

This guide explains which documents are usually needed, the order in which the steps are completed and the most common reasons for rejection. It is written for companies establishing operations in San Luis Potosí and elsewhere in Mexico, and for the law firms, notaries, chambers of commerce and industrial parks that support them. It includes a downloadable checklist and links to the official sources consulted.

This guide is for information only and does not replace advice from your attorney, notary or accountant. Requirements change; always confirm with the authority or notary who will receive your documents.

First decision: Mexican subsidiary or branch?

The Ministry of Economy recognizes several ways for a foreign investor to operate in Mexico. The two most common for an operating business are:

1. Incorporating a Mexican company with foreign shareholders, for example an S.A. de C.V. (similar to a corporation) or an S. de R.L. de C.V. (similar to an LLC). This is the usual route for subsidiaries, plants and distribution centers. As a general rule it does not require prior approval from the Ministry of Economy, except in specifically regulated activities.
2. Registering a branch of the foreign company to carry on business in Mexico. The foreign company needs an authorization from the Ministry of Economy or, if it was incorporated in a country that has a free trade agreement with Mexico that includes an investment chapter, it only has to file a notice of establishment.

A third option is a representative office, which may not carry on commercial activities and has its own authorization.

Under all three routes, the foreign company's own documents form the core of the file. What changes is the procedure in which they are filed.

Apostille or legalization: the step before translation

A foreign public document must be authenticated in its country of origin before it can be used in Mexico. There are two routes:

• Apostille. If the country of origin is a party to the Hague Apostille Convention, as are the United States, Canada, Japan, Germany and most European countries, the document is apostilled in that country by its own designated authority. In the United States, for example, the apostille is issued by the Secretary of State of the state where the document was issued. An apostille for a foreign document cannot be obtained in Mexico or at a Mexican consulate.
• Consular legalization. If the country is not a party to the Convention, the document is first legalized by its local authorities and then by the Mexican consulate with jurisdiction over the place where it was issued.

An apostille only certifies the signature and capacity of the official who signed the document; it does not validate its content. Make sure the document is complete and correct before it is apostilled, because any later correction means repeating the process.

You can check whether a country is a party to the Convention in the official status table of the Hague Conference, linked in the official sources below.

A common detail: many corporate documents are private documents, such as a board resolution signed by the corporate secretary. Before they can be apostilled, they usually have to be certified by a notary public or by the relevant commercial registry. Check with the apostille authority in your country which prior certification each document needs.

Step by step

Route A: incorporating a Mexican company with foreign shareholders

Typical sequence according to the One-Stop Shop for Investors:

1. Gather, apostille and translate the foreign shareholders' documents: certificate of incorporation, bylaws, the resolution approving the investment and the power of attorney of the person who will sign in Mexico. This is the step that takes longest if it is left until the end.
2. Approval of the company name. Requested online through the Ministry of Economy's Single Authorization Module (MUA), using the valid e.firma (electronic signature) of an individual. The authority responds within a maximum of two business days. The notary or attorney usually files it.
3. Incorporation before a notary or commercial notary (corredor público). The notary reviews the foreign documents, their apostille and translation, and adds them to the appendix of the deed. Foreign shareholders without their own RFC are identified with the generic RFC for non-residents established by the SAT. Each notary may ask for additional documents: confirm the list with yours and have the translations ready before the signing appointment.
4. Notice of use of the company name, filed by the notary through the MUA.
5. Registration with the Public Registry of Commerce through the Ministry of Economy's SIGER system.
6. RFC and e.firma for the company. This can be done through the notary, if the notary participates in the SAT's remote registration program, or by appointment at an SAT office. The legal representative must be registered with the RFC; a foreign representative presents a valid immigration document.
7. Registration with the National Foreign Investment Registry (RNIE) within 40 business days after the foreign investment enters the company's capital. Late filing results in a fine.
8. Registration with the Mexican Business Information System (SIEM).

The One-Stop Shop estimates between 10 and 33 days for steps 2 to 8, not counting the time needed for apostilles and translations.

Route B: registering a branch of the foreign company

1. Gather, apostille and translate the certificate of incorporation, the current bylaws with all amendments and the representative's power of attorney.
2. Notice of establishment or authorization from the Ministry of Economy. A company incorporated in a country with a free trade agreement that includes an investment chapter files an online notice, free of charge, with an immediate response during business hours. Other companies apply for an authorization and pay a government fee. Both require an e.firma.
3. Formalization before a Mexican notary of the bylaws and of the authorization or notice.
4. Registration with the Public Registry of Commerce.
5. Registration with the RNIE within 40 business days after the notarial formalization.
6. RFC registration as a non-resident with a permanent establishment, with the apostilled, notarized and translated documents required by the SAT.
7. Registration with SIEM.

If foreign executives or technical staff will work in Mexico

Before issuing job offers, the Mexican entity obtains its Employer Registration Certificate (Constancia de Inscripción de Empleador) from the INM. Companies file, among other documents, their incorporation deed, the representative's power of attorney and ID, a recent proof of address and the RFC certificate. With that certificate, the company then requests a work visa authorization based on a job offer for each person who will come to work. Foreign public documents in this file must also be apostilled and translated by a perito.

Common reasons for rejection or delay

• Missing apostille, or an apostille issued by the wrong authority, for example by a state other than the one that issued the document.
• The translation leaves out the apostille, seals or notary public certificates.
• The translation was made outside Mexico or by someone who is not a perito.
• Inconsistent company names: "Inc." versus "Incorporated", commas, accents or abbreviations that differ between the certificate, the power of attorney and the application.
• Powers of attorney without sufficient authority: the SAT, for example, requires powers for acts of administration or ownership to register the company with the RFC.
• Foreign powers of attorney not formalized before a Mexican notary.
• Incomplete bylaws or bylaws missing the latest amendments.
• Outdated proof of address: as a general rule the SAT accepts documents up to four months old, and the INM up to thirty calendar days.
• Legal representative without an RFC or a valid e.firma, which blocks the company's own RFC registration.
• Late registration with the RNIE, which results in a fine.