Investing in Mexico from abroad: vehicle, permits, and RNIE registration

Those who invest in Mexico from abroad usually ask about returns first and about filings later. The Ley de Inversión Extranjera (Foreign Investment Law, LIE) opens almost every activity to foreign capital, but it sets exceptions, prior approval in specific cases, and a registration subject to a deadline. This guide lays out the path, from the initial analysis to the RFC (Mexican taxpayer ID number), the bank, and the beneficial owner.

Article 4 of the LIE allows foreign investment to hold any proportion of the capital of Mexican companies, except as the Law itself provides. The exceptions are in Articles 5 to 9, and the caps cannot be circumvented through trusts, bylaw arrangements, or pyramid structures (Article 7).

The most common choice is a Mexican company with foreign capital: the Ministry of Economy authorizes the corporate name within two business days (Articles 15 and 16 A of the LIE), and the bylaws include the agreement under Article 27, Section I, of the Constitution, by which foreign shareholders agree to consider themselves Mexican nationals with respect to their shares and the company's assets and not to invoke their government's protection over them, under penalty of forfeiting them to the Nation (Article 14 of the Regulations). A foreign company that prefers to operate through a branch needs authorization from the Ministry, which must be granted within fifteen business days if the application meets the requirements, failing which it is deemed granted (Article 17 A); the branch is then registered with the Public Registry of Commerce. For residential use in the restricted zone, fifty kilometers along the coastline, Playa del Carmen included, the route is a bank trust with a permit from the Ministry of Foreign Affairs (SRE), under Articles 2 and 11.

When it is involved, the National Foreign Investment Commission decides within 45 business days at most; if it does not, the application is deemed approved (Article 28). It may also block an acquisition on national security grounds (Article 30). A bill amending the Law in this area was passed by the Senate on September 30, 2026, and sent to the Chamber of Deputies; it is advisable to check its status before structuring the transaction. The Article 9 threshold is updated each year: the resolution published in the Diario Oficial de la Federación (DOF, Official Gazette of the Federation) on August 5, 2025, set it at MXN 28,623,925,390.72 in assets, applicable until the Commission issues a new general resolution. Companies with foreign shareholders and branches register with the Registro Nacional de Inversiones Extranjeras (RNIE, National Registry of Foreign Investments); for trusts that grant rights to foreigners, registration falls to the trustee institution (Article 32).

Registration must be made within 40 business days from the date of incorporation of the company or of the participation of the foreign investment (…) or of the creation of the respective trust (…).

The company registers with the Registro Federal de Contribuyentes (RFC, Federal Taxpayer Registry) using procedure sheet 43/CFF of the Servicio de Administración Tributaria (SAT, Mexico's federal tax authority); a power of attorney granted outside Mexico is apostilled or legalized and formalized before a Mexican notary or other authorized official (fedatario). Shareholders resident abroad need not register if the company files a list of them within three months after the close of each fiscal year (Article 27 of the Código Fiscal de la Federación, Federal Tax Code, CFF). For tax purposes, the company identifies its beneficial owners (beneficiarios controladores), including anyone who can vote more than 15% of the capital, and updates that information within fifteen calendar days (Articles 32-B Ter to 32-B Quinquies of the CFF). The bank will also ask for the chain of ownership under its own identification rules.

The United States-Mexico-Canada Agreement (USMCA; CUSMA in Canada, T-MEC in Mexico), in force since July 1, 2020, protects investment in its Chapter 14: national treatment, most-favored-nation treatment, a minimum standard of treatment, and protection against expropriation without compensation (Articles 14.4 to 14.8), with limited arbitration between Mexico and the United States (Annex 14-D). In the joint review of July 1, 2026, the United States did not agree to extend it: the treaty remains in force and is subject to annual reviews. Canadian investments are covered by the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP), to which Mexico and Canada are parties. With other countries, a bilateral investment treaty (BIT, known in Mexico as APPRI) or the investment chapter of another treaty may apply; it is advisable to check which one corresponds to the investor's country of origin.

1. Classify the activity

   Place it within Articles 4 to 9 of the LIE: the permitted percentage and the need for prior approval depend on it.

   Deadline: Before signing

2. Choose the vehicle and obtain permits

   A company with the Article 27 constitutional agreement, an authorized branch, or a fideicomiso; the corporate name and, if applicable, a Commission ruling.

   Deadline: Commission · 45 business days

3. Incorporate and obtain the RFC

   Before a fedatario and with procedure sheet 43/CFF; plan for apostilled and translated powers of attorney.

4. Register the company or branch with the RNIE

   From incorporation, the entry of the foreign shareholder, or the notarization of the foreign company's documents; for a trust, registration falls to the trustee bank. Keep the filing receipt: fedatarios will ask for it.

   Deadline: 40 business days

5. Open the account and set the calendar

   Document the beneficial owner and calendar the list of foreign shareholders, the annual renewal, and, if the activity is a vulnerable activity under Mexico's AML law, the anti-money laundering obligations.

   Deadline: Renewal (if applicable) · April or May