Company in Mexico: Key Issues, Registration and Business Operations

Mexico is Latin America's second-largest economy and one of the most active destinations for foreign direct investment in the region. Registering a company in Mexico requires navigating a layered system of federal and state-level requirements, choosing the right corporate vehicle, and building operational compliance from day one. This article walks through the principal legal structures, the registration process, ongoing obligations, and the most common pitfalls that international investors encounter when establishing and running a business in Mexico.

The starting point for any foreign investor is selecting the appropriate legal vehicle. Mexican commercial law, governed primarily by the Ley General de Sociedades Mercantiles (General Law of Commercial Companies, LGSM), offers several corporate forms. The two most relevant for foreign-owned businesses are the Sociedad Anónima (S.A.) and the Sociedad de Responsabilidad Limitada (S.R.L.).

The Sociedad Anónima (S.A.) is the Mexican equivalent of a joint-stock company. It requires a minimum of two shareholders, and liability is limited to each shareholder's capital contribution. The S.A. is the dominant structure for medium and large enterprises, particularly those anticipating future equity rounds or public listings. A variant, the Sociedad Anónima Promotora de Inversión (S.A.P.I.), offers additional flexibility for private equity arrangements, including tag-along and drag-along rights, which are otherwise restricted under the standard S.A. framework.

The Sociedad de Responsabilidad Limitada (S.R.L.) functions similarly to a limited liability company in common-law jurisdictions. It caps the number of partners at 50 and does not issue freely transferable shares, making it better suited to closely held businesses or joint ventures where ownership stability is a priority. Transfer of partnership interests requires the consent of the other partners unless the articles of association provide otherwise.

A third option worth considering is the Sociedad por Acciones Simplificada (S.A.S.), introduced by a 2016 amendment to the LGSM. The S.A.S. allows online registration without a notary and is designed for small businesses with annual revenues below a statutory threshold. However, it prohibits foreign shareholders, which immediately disqualifies it for most international investors.

For foreign companies wishing to operate in Mexico without incorporating a separate entity, the law permits registration of a branch office (sucursal). A branch is not a separate legal person - the parent company remains fully liable for its obligations. This structure suits short-term projects or market-testing phases but creates unlimited exposure for the parent, which most investors prefer to avoid.

The choice between an S.A. and an S.R.L. is not merely formal. It affects governance flexibility, the ease of admitting new investors, tax treatment of profit distributions, and the administrative burden of ongoing compliance. Many international investors default to the S.A. without fully analysing whether the S.R.L. might serve their specific structure better.

Incorporating a company in Mexico involves several sequential steps, each with its own authority, timeline and cost level. Understanding the sequence prevents delays that can stretch a straightforward incorporation into a months-long process.

The first step is reserving the corporate name with the Secretaría de Economía (Ministry of Economy). The reservation is done online through the federal portal and is typically confirmed within one to three business days. The reserved name is valid for 180 days, during which the incorporation must be completed.

The second step is drafting and executing the deed of incorporation (acta constitutiva) before a Mexican notary public (Notario Público). The notary is a civil-law notary - a licensed professional with quasi-public authority - not simply a document witness as in common-law systems. The notary drafts the articles of association, verifies the identity of shareholders and directors, and certifies the deed. This step typically takes one to two weeks, depending on the complexity of the governance structure and the availability of the notary.

The deed must include the corporate name, registered address, corporate purpose, share capital structure, governance rules, and the identity of the initial administrators. Mexican law under Article 6 of the LGSM sets out the mandatory content of the deed. The corporate purpose clause deserves particular attention: it must be broad enough to cover all planned activities but specific enough to satisfy regulatory authorities. An overly narrow purpose clause can block the company from entering new business lines without a formal amendment.

Following notarisation, the company must be registered with the Registro Público de Comercio (Public Registry of Commerce, RPC) in the state where the registered office is located. Registration timelines vary by state - Mexico City and Monterrey tend to process registrations faster than smaller states. The process generally takes between five and fifteen business days after submission of the notarised deed.

Simultaneously, the company must obtain its Registro Federal de Contribuyentes (Federal Taxpayer Registry, RFC) from the Servicio de Administración Tributaria (Tax Administration Service, SAT). The RFC is the tax identification number required for all commercial and fiscal activity. Without it, the company cannot open a bank account, issue invoices, or enter into formal contracts. The RFC application is submitted online and is usually issued within three to five business days once the RPC registration is confirmed.

If the company will employ staff, it must also register with the Instituto Mexicano del Seguro Social (Mexican Social Security Institute, IMSS) and the Instituto del Fondo Nacional de la Vivienda para los Trabajadores (National Workers' Housing Fund Institute, INFONAVIT). These registrations must be completed before the first employee starts work.

Depending on the sector, additional licences or permits may be required. Companies in food and beverage, pharmaceuticals, financial services, telecommunications, and energy face sector-specific regulatory layers that add time and cost to the setup phase.

In terms of cost, notary fees for a standard incorporation typically fall in the low thousands of USD range, varying by state and notary. RPC registration fees are set by state law and are generally modest. Legal advisory fees for structuring and supervising the process start from the low thousands of USD for straightforward structures and rise with complexity.

To receive a checklist of required documents and steps for company registration in Mexico, send a request to info@vlolawfirm.com.

Mexico maintains a relatively open foreign investment regime, but the Ley de Inversión Extranjera (Foreign Investment Law, LIE) and its regulations impose restrictions in specific sectors that international investors must map before committing capital.

Under the LIE, certain activities are reserved exclusively for the Mexican state - these include petroleum extraction, electricity generation through the national grid, and radioactive materials. A second category is reserved exclusively for Mexican nationals, including domestic air transport, retail sale of gasoline, and certain broadcasting activities. Foreign investors cannot hold equity in these sectors regardless of the investment amount or structure.

A third category allows foreign participation up to specified percentage caps. For example, foreign ownership in domestic air transport companies is capped at 25 percent of voting shares under Article 7 of the LIE. In financial institutions, insurance companies, and pension fund administrators, specific caps and regulatory approvals apply under sector-specific laws.

For activities not listed in the restricted or capped categories, foreign investors may hold 100 percent of the equity without prior authorisation. This covers most manufacturing, services, retail, technology, and professional services activities.

Where foreign participation exceeds 49 percent of the capital in certain activities, or where the total value of the transaction exceeds a statutory threshold, prior authorisation from the Comisión Nacional de Inversiones Extranjeras (National Foreign Investment Commission, CNIE) is required. The CNIE review process can take up to 45 business days, with a possible extension of an additional 45 days in complex cases.

A non-obvious risk for foreign investors is the Calvo Clause, embedded in Article 27 of the Mexican Constitution and reflected in the LIE. Foreign investors in Mexico must agree to be treated as Mexican nationals with respect to their investments and to waive any right to invoke the protection of their home government in commercial disputes. This clause is incorporated into the articles of association of any company with foreign shareholders. While international investment treaties (including the USMCA) provide separate protections, the Calvo Clause affects the domestic legal position of the foreign investor.

Many international clients underappreciate the importance of the CNIE filing obligation. Missing the threshold triggers a filing requirement even for transactions that are otherwise straightforward, and failure to notify can result in administrative sanctions and, in extreme cases, nullification of the transaction.

Once incorporated, a Mexican company must maintain ongoing governance and compliance obligations. Failure to do so creates legal exposure for directors and shareholders alike.

The governance of an S.A. is structured around the Asamblea de Accionistas (Shareholders' Meeting) and the Consejo de Administración (Board of Directors) or a single Administrador Único (Sole Administrator). The LGSM under Articles 178 to 206 sets out the powers and duties of each body. The shareholders' meeting is the supreme governance organ and must approve annual financial statements, appoint directors, and authorise major transactions.

Mexican law does not require a Mexican national to serve as director or administrator. However, the legal representative (representante legal) of the company - the person authorised to bind the company before third parties and authorities - must be physically present in Mexico or at least accessible for regulatory purposes. In practice, many foreign-owned companies appoint a local manager or legal representative to handle day-to-day regulatory interactions.

The Comisario is a statutory auditor role unique to Mexican corporate law, required for S.A. companies under Article 164 of the LGSM. The Comisario is appointed by the shareholders and is responsible for reviewing the company's financial statements and reporting to the shareholders' meeting. This role is distinct from the external auditor and cannot be held by a director or employee of the company. Foreign investors often overlook this requirement, leading to compliance gaps that surface during due diligence or regulatory inspections.

Annual obligations for a Mexican company include holding an ordinary shareholders' meeting within four months of the end of the fiscal year (which coincides with the calendar year under Mexican tax law), filing annual tax returns with the SAT, submitting social security contributions to the IMSS, and maintaining the Registro de Beneficiarios Controladores (Beneficial Ownership Registry) updated in accordance with amendments to the Código Fiscal de la Federación (Federal Tax Code, CFF) introduced in recent years.

The beneficial ownership registry requirement is a relatively recent addition to Mexican compliance obligations. Companies must identify and register individuals who ultimately own or control more than 25 percent of the equity or who exercise effective control over the company's decisions. Failure to maintain accurate beneficial ownership records can result in fines and restrictions on tax filings.

A common mistake among foreign-owned companies is treating Mexican corporate compliance as a one-time setup exercise. In practice, it is an ongoing obligation. Missed shareholders' meetings, outdated corporate records, and unfiled beneficial ownership updates accumulate into material compliance deficiencies that create problems when the company seeks financing, enters into significant contracts, or undergoes a change of ownership.

To receive a checklist of annual corporate compliance obligations for companies in Mexico, send a request to info@vlolawfirm.com.

Mexico has one of the most employee-protective labour frameworks in Latin America. The Ley Federal del Trabajo (Federal Labour Law, LFT) governs the employment relationship and sets minimum standards that cannot be waived by contract.

The LFT mandates a range of benefits that go beyond base salary. These include a mandatory profit-sharing scheme (Participación de los Trabajadores en las Utilidades, PTU), under which employees are entitled to 10 percent of the company's taxable income for the year, capped at three months' salary or the average of the last three years' PTU, whichever is higher. This obligation applies to virtually all companies with employees and must be paid within 60 days of the annual tax return filing deadline.

Employees are also entitled to a Christmas bonus (Aguinaldo) equivalent to at least 15 days of salary, payable before December 20 of each year. Vacation entitlements start at 12 days per year for the first year of service and increase progressively. A vacation premium (Prima Vacacional) of at least 25 percent of the vacation salary is mandatory.

The 2021 reform to the LFT significantly restricted the use of outsourcing and subcontracting arrangements (outsourcing). Under the amended Article 13 of the LFT, companies can no longer use third-party employers to supply workers for their core business activities. Specialised services that are not part of the company's corporate purpose may still be subcontracted, but the arrangement must be registered with the Registro de Prestadoras de Servicios Especializados u Obras Especializadas (REPSE). Failure to comply with the outsourcing reform exposes both the service provider and the client company to joint and several liability for labour and social security obligations.

The risk of inaction on REPSE compliance is significant. Companies that continue to use pre-reform outsourcing structures without registering face back-payment of social security contributions, profit-sharing obligations, and potential criminal liability for the responsible officers. Regulatory inspections by the IMSS and the Secretaría del Trabajo y Previsión Social (Ministry of Labour and Social Welfare, STPS) have increased in frequency since the reform.

Termination of employment in Mexico is strictly regulated. Unjustified dismissal triggers a constitutional severance entitlement under Article 123 of the Constitución Política de los Estados Unidos Mexicanos (Political Constitution of the United Mexican States) and Article 50 of the LFT, including three months' salary, 20 days per year of service, and seniority premium. Employees may also opt for reinstatement instead of severance in certain cases. The practical cost of terminating a long-tenured employee can be substantial, and many foreign employers underestimate this liability when planning workforce restructuring.

Three practical scenarios illustrate the range of operational risk:

• A manufacturing company with 200 employees that restructures its workforce without calculating PTU and severance correctly faces claims before the Junta de Conciliación y Arbitraje (Conciliation and Arbitration Board) that can take 12 to 24 months to resolve and result in awards significantly above the initially estimated cost.

• A technology services company that subcontracts software development to a third-party employer without REPSE registration faces joint liability for the subcontractor's social security arrears, which may have accumulated over several years.

• A retail business that fails to pay the Aguinaldo on time faces administrative fines from the STPS and potential labour claims, even where the underlying employment relationship is otherwise compliant.

Mexico's tax system is administered by the SAT and is governed primarily by the Ley del Impuesto sobre la Renta (Income Tax Law, LISR), the Ley del Impuesto al Valor Agregado (Value Added Tax Law, LIVA), and the CFF. Understanding the interaction between these laws is essential for managing the fiscal cost of operating in Mexico.

The corporate income tax rate under Article 9 of the LISR is 30 percent, applied to taxable net income. Mexico does not offer a reduced rate for small or medium enterprises at the federal level, though certain state-level incentives may apply depending on the location of operations. Dividends paid to foreign shareholders from previously taxed earnings are subject to a withholding tax of 10 percent under Article 140 of the LISR, which may be reduced by an applicable tax treaty.

Mexico has an extensive network of tax treaties for the avoidance of double taxation, covering most major economies including the United States, Canada, Germany, Spain, the Netherlands, and Singapore, among others. Treaty benefits are not automatic - the company must meet the treaty's limitation on benefits provisions and, in some cases, obtain a certificate of tax residency from the foreign jurisdiction. A common mistake is assuming that treaty rates apply without verifying the procedural requirements for claiming them.

Value Added Tax (IVA) under the LIVA is levied at a standard rate of 16 percent on the sale of goods, provision of services, use or enjoyment of goods, and importation of goods. Certain activities are zero-rated, including exports of goods and services, which makes Mexico's VAT system relatively export-friendly. Companies engaged in both taxable and exempt activities must apply a proportional crediting mechanism that can reduce the recoverable IVA.

The CFF imposes strict electronic invoicing requirements. All commercial transactions must be documented through the Comprobante Fiscal Digital por Internet (CFDI), an electronic invoice validated in real time by the SAT. Failure to issue or receive valid CFDIs can result in the disallowance of deductions and VAT credits, creating a direct fiscal cost. The SAT's electronic systems also enable near-real-time monitoring of taxpayer activity, which means that discrepancies between reported income and CFDI data are identified quickly.

Transfer pricing is a significant compliance area for foreign-owned companies. Under Articles 76 and 179 of the LISR, companies with related-party transactions must document those transactions at arm's length and file an annual transfer pricing report (Estudio de Precios de Transferencia). The SAT has increased its audit activity in this area, particularly for intercompany service fees, royalties, and financing arrangements. A non-obvious risk is that the SAT may challenge the characterisation of intercompany payments as deductible expenses if the transfer pricing documentation is inadequate, resulting in adjustments that increase taxable income and trigger surcharges and inflation adjustments.

Mexico also imposes a mandatory electronic accounting obligation under the CFF, requiring companies to maintain their accounting records in electronic format and to submit trial balances and other accounting information to the SAT through its electronic portal on a monthly or quarterly basis. This requirement applies to companies above a certain revenue threshold and to all companies that carry forward tax losses.

The loss of tax deductions due to missing or invalid CFDIs is one of the most frequently encountered fiscal problems for foreign-owned companies in Mexico. The administrative burden of maintaining CFDI compliance across all transactions - including payments to suppliers, landlords, and service providers - requires robust internal processes from the outset.

What are the main legal risks of operating in Mexico through a branch rather than a subsidiary?

Operating through a branch (sucursal) means the parent company is directly and fully liable for all obligations incurred in Mexico, without the liability shield that a separate legal entity provides. Mexican courts and tax authorities treat the branch as an extension of the parent, which means that creditors, employees, and the SAT can pursue claims against the parent's assets globally to the extent permitted by applicable law. Additionally, a branch cannot benefit from certain tax treaty provisions that require the recipient to be a resident entity. For most foreign investors with ongoing operations, the subsidiary structure is preferable because it limits exposure and provides cleaner governance. The branch structure is better suited to temporary projects or representative functions.

How long does it realistically take to have a fully operational company in Mexico, and what are the main cost drivers?

From the decision to incorporate to having a fully operational company - meaning registered, tax-enrolled, bank account open, and ready to issue invoices - the realistic timeline is six to ten weeks for a straightforward structure. The main variables are notary availability, the complexity of the corporate structure, the state of registration, and the speed of bank account opening, which has become a significant bottleneck as Mexican banks apply enhanced due diligence to foreign-owned entities. Cost drivers include notary fees, legal advisory fees for structuring and supervising the process, and any sector-specific licensing costs. Bank account opening for foreign-owned companies often requires extensive documentation and can add two to four weeks to the timeline independently of the corporate registration process.

When should a foreign investor consider restructuring from an S.A. to an S.A.P.I. or another structure?

The S.A.P.I. becomes relevant when the company anticipates bringing in private equity or venture capital investors who require contractual protections - such as anti-dilution rights, drag-along and tag-along provisions, or preferential liquidation rights - that are not available under the standard S.A. framework. The LGSM expressly authorises these mechanisms for the S.A.P.I. under Articles 13 to 16 of the Ley del Mercado de Valores (Securities Market Law, LMV). A restructuring from S.A. to S.A.P.I. requires a shareholders' meeting resolution, a notarial deed of amendment, and re-registration with the RPC. The process is manageable but adds cost and time, so investors who anticipate equity financing rounds should consider adopting the S.A.P.I. structure from inception rather than converting later.

Establishing and operating a company in Mexico offers genuine commercial opportunity, but the legal and regulatory framework demands careful navigation from the outset. The choice of corporate structure, the registration sequence, foreign investment compliance, labour law obligations, and fiscal requirements each carry material consequences if handled incorrectly. The cost of non-specialist mistakes - whether in the form of labour claims, tax adjustments, or compliance penalties - consistently exceeds the cost of proper legal structuring at the start. International investors who treat Mexican corporate law as a formality rather than a substantive discipline tend to encounter the most significant problems.

To receive a checklist of key legal and compliance steps for setting up and operating a company in Mexico, send a request to info@vlolawfirm.com.

Our law firm VLO Law Firm has experience supporting clients in Mexico on corporate formation, regulatory compliance, labour law, and tax structuring matters. We can assist with selecting the appropriate corporate vehicle, managing the registration process, structuring intercompany arrangements, and building ongoing compliance frameworks. To receive a consultation, contact: info@vlolawfirm.com.