Skip to main content

Partners Circular Letter Mexico (Carta Circular a Socios)

Carta Circular a Socios

Partners Circular Letter Mexico

CARTA CIRCULAR A SOCIOS

[Company Name]

RFC: [Company RFC] | [Company Domicilio]

[RPC Reference]

Circular Núm.: [Circular Number]

Fecha: [Circular Date]

A: TODOS LOS SOCIOS DE [Company Name]

ASUNTO: [Circular Subject]

ESTIMADOS SOCIOS:

[Circular Body]

ACCIÓN REQUERIDA:

[Action Required]

Fecha límite de respuesta (en su caso): [Response Deadline]

La presente circular se entrega a cada socio mediante: [Delivery Method], conforme al Artículo 183 de la Ley General de Sociedades Mercantiles y al Libro de Registro de Socios de la Sociedad.

Quedamos a su disposición para cualquier aclaración o información adicional.

Atentamente,

[Issuer Name]

[Company Name]

Firma: _________________________

ACUSE DE RECIBO:

Nombre del socio: _________________________

Firma: _________________________ Fecha: _____________

Administrator / Issuer (Administrador / Emisor)

________________

Signature

Maintained by Vladislav Sergienko, Founder·Template last modified: ·Report an error

What Is a Partners Circular Letter Mexico (Carta Circular a Socios)?

A Partners Circular Letter Mexico (Carta Circular a Socios) is a formal written communication issued by the management body (órgano de administración) of a Mexican commercial company — the Consejo de Administración (board of directors), the Administrador Único (sole administrator), or the Gerente (manager) — addressed simultaneously to all partners (socios) or shareholders (accionistas) to inform them of corporate decisions, operational updates, legal changes, or other matters affecting the company that fall outside the scope of matters requiring a formal shareholders' meeting (asamblea de socios or asamblea de accionistas). In Mexico, circular communications to partners are implicitly authorised by the Ley General de Sociedades Mercantiles (LGSM, DOF 4 August 1934, as amended) — specifically, Article 183 LGSM establishes the administrator's duty to keep shareholders informed of the company's situation and to communicate relevant corporate matters.

The LGSM regulates the two principal forms of Mexican commercial companies that use circular communications to partners most frequently: Sociedades Anónimas (S.A. and S.A. de C.V.) under Articles 87–206 LGSM, and Sociedades de Responsabilidad Limitada (S. de R.L. and S. de R.L. de C.V.) under Articles 58–86 LGSM. For S.A. companies, the administrator's general duty to keep shareholders informed derives from Article 158 LGSM (obligation of the Consejo de Administración) and Article 183 LGSM. For S. de R.L. companies, the management duty runs under Articles 79 through 81 LGSM, which require the gerente to provide partners with access to company books and financial information.

A Carta Circular a Socios serves several distinct purposes within Mexican corporate governance: first, it provides a documented channel for routine corporate communications that fall below the threshold requiring a formal asamblea under the LGSM — for example, informing partners of a change in the company's registered address (domicilio social), a change in the company's fiscal information with the SAT, or routine operational updates. Second, it may accompany and summarise documents that must be distributed to partners — such as annual financial statements (estados financieros anuales), auditor's reports (dictámenes del auditor externo), or proposed agenda items for an upcoming asamblea. Third, it creates a written record that all partners received the communication, which is critical evidence in corporate disputes before the Juzgado de lo Mercantil or the arbitration body specified in the shareholders' agreement (convenio de accionistas).

The Registro Público de Comercio (RPC) — maintained by the Secretaría de Economía and operating under the Código de Comercio — requires that certain corporate changes be registered publicly. A Carta Circular a Socios notifying partners of changes that will be submitted to the RPC (such as changes to the company's estatutos sociales, capital structure, or administrative bodies) creates a contemporaneous record of partner notification before the formal registration process.

The Sociedad por Acciones Simplificada (S.A.S.), introduced by Decreto DOF 14 March 2016 and incorporated entirely online through the Empresa en un Día portal of the Secretaría de Economía, also uses circular communications to its shareholders, typically through electronic means authorised by its constitutive act. Under Article 260 bis LGSM, the S.A.S. may not have more than five shareholders and is designed for micro and small business owners — the Carta Circular a Socios for an S.A.S. is typically distributed by email or through the company's registered digital platform, with read-receipts serving as delivery confirmation. The LGSM and the Código de Comercio recognise electronic communications as valid under the principles of the Ley de Firma Electrónica Avanzada (e.firma) and the Código de Comercio's electronic commerce provisions, provided the company's governing instruments expressly authorise electronic communications between the management and partners.

When Do You Need a Partners Circular Letter Mexico (Carta Circular a Socios)?

A Partners Circular Letter Mexico is needed in any situation where the management of a Mexican commercial company must formally communicate to all partners or shareholders without convening a full shareholders' assembly under the Ley General de Sociedades Mercantiles.

The circular is needed when communicating changes to the company's administrative or financial information that do not require assembly approval — for example, a change in the company's fiscal domicile (domicilio fiscal) registered with the SAT, a change in the company's main banking accounts, or updates to key management contact information that all partners should receive simultaneously.

The letter is required when distributing annual financial statements (estados financieros) and the external auditor's report (dictamen del auditor externo) to all shareholders prior to the ordinary annual assembly (asamblea ordinaria anual) mandated by LGSM Article 181 for S.A. companies and Article 79 for S. de R.L. companies. Circulating the financial documents before the assembly gives all partners adequate time to review them, satisfying the administrator's duty of transparency.

The document is needed when informing partners of regulatory or legal changes affecting the company — new tax obligations under SAT resolutions (Resoluciones Misceláneas Fiscales), changes in IMSS employer contribution rates, or new compliance requirements under the Ley Federal de Prevención e Identificación de Operaciones con Recursos de Procedencia Ilícita (Ley Anti-lavado). The circular creates a documentary record that partners were informed of material legal developments.

The circular is also needed to communicate the results and resolutions adopted in a shareholders' assembly to partners who were absent (ausentes) from the meeting — while formal minutes (acta de asamblea) serve this purpose for the Registro Público de Comercio, a covering circular letter provides a plain-language summary of resolutions and next steps for all partners, including those without legal or accounting training.

A Carta Circular a Socios is specifically required when the company must inform all partners of the exercise of a pre-emptive right (derecho de preferencia or derecho del tanto) in connection with a proposed share transfer — under many shareholders' agreements (convenios de accionistas) and the S. de R.L. restrictions on partner transfers under Articles 65–67 LGSM, existing partners have a right of first refusal over transferred shares. The circular formally notifies all partners of the proposed transfer, the price and terms, and the deadline within which pre-emptive rights must be exercised. This notification triggers the statutory or contractual period for partner response and must be documented with proof of delivery to all partners.

What to Include in Your Partners Circular Letter Mexico (Carta Circular a Socios)

A valid Partners Circular Letter Mexico under the Ley General de Sociedades Mercantiles must contain the following essential elements to serve its corporate communication function and to be admissible as evidence of partner notification in any subsequent corporate dispute:

Company Identification: Full corporate name (denominación social) and corporate form (S.A. de C.V., S. de R.L. de C.V., etc.) of the issuing company, RFC, registered address (domicilio social), Registro Público de Comercio (RPC) registration number and date, and fiscal year to which the communication pertains.

Issuer Identification: Name and capacity of the person or body issuing the circular — the Administrador Único, Gerente General, or President of the Consejo de Administración — and their authority to issue communications on the company's behalf under the company's estatutos sociales and any applicable Poder Notarial.

Recipient List: Identification of all recipients — for a circular to all partners (socios), the communication should be addressed to the full current list of partners or shareholders as recorded in the company's Libro de Registro de Socios (S. de R.L.) or Libro de Registro de Acciones (S.A.), maintained pursuant to LGSM Article 128.

Subject Matter and Content: A clear description of the matter being communicated — whether a corporate decision already adopted, information being shared, a legal update, financial data, or advance notice of an upcoming matter requiring partner action. The content should be clear, accurate, and complete — partners relying on the circular to make decisions or take actions are entitled to accurate information under the administrator's duty of loyalty (deber de lealtad) to the company and its partners.

Date, Reference, and Delivery Method: The date of issuance, a document reference number for filing, and the method by which the circular is being delivered to each partner — personal delivery (entrega personal), registered mail (correo certificado), email at the address registered in the Libro de Socios, or notarial delivery for formal matters. The delivery method and confirmation of receipt are critical for proving that all partners were properly notified.

Attachment and Enclosure Requirements: When the circular distributes documents to partners — such as financial statements, auditor reports, or proposed statutory amendments — the enclosures must be numbered, dated, and referenced explicitly in the circular body. Partners who receive incomplete enclosures may later dispute their obligation to act on the information provided. For S. de R.L. companies where the escritura constitutiva requires partner access to the Libro de Actas and financial records under Articles 79 and 80 LGSM, the circular serves as documentary proof that this access was proactively provided rather than requiring a partner request.

Archiving and Corporate Records: Each Partners Circular Letter should be assigned a unique document reference number and retained in the company's Libro de Actas or a separate correspondence file as part of the permanent corporate records. Under Article 46 of the Código de Comercio, merchants must retain their commercial books and correspondence for at least 10 years. The circular's reference number, issuance date, delivery method, and recipient confirmation records form part of the audit trail that corporate counsel, external auditors, and the Registro Público de Comercio may review during due diligence or registration procedures.

Forms-legal.com provides this Partners Circular Letter Mexico template as a practical starting point for corporate communication. For communications that require formal partner consent or that relate to matters requiring registered corporate resolutions, companies should consult a Licenciado en Derecho specialised in derecho corporativo or derecho mercantil to confirm proper documentation. Related documents include the Convocatoria de Asamblea (for matters that require a formal shareholders' meeting), the Acta de Asamblea de Socios SRL (recording resolutions adopted at the meeting), and the Convenio de Accionistas (shareholders' agreement that may specify additional circular letter requirements for pre-emptive right notifications and other matters between partners).

Cite this page

Reference this free template in an article, syllabus, or research note:

APA

Forms Legal. (2026). Partners Circular Letter Mexico (Carta Circular a Socios) (Mexico) [Legal document template]. Forms Legal. https://forms-legal.com/mexico/business/letters/partners-circular-letter-mexico

MLA

"Partners Circular Letter Mexico (Carta Circular a Socios) (Mexico)." Forms Legal, 2026, https://forms-legal.com/mexico/business/letters/partners-circular-letter-mexico.

BibTeX
@misc{formslegal-partners-circular-letter-mexico,
  author       = {{Forms Legal}},
  title        = {Partners Circular Letter Mexico (Carta Circular a Socios) (Mexico)},
  year         = {2026},
  howpublished = {\url{https://forms-legal.com/mexico/business/letters/partners-circular-letter-mexico}},
  note         = {Free legal document template}
}

Frequently Asked Questions

Statute-referenced template — Template last modified June 2026

This template is provided for informational purposes only and does not constitute legal advice. Laws vary by jurisdiction and change over time. Consult a qualified attorney for advice specific to your situation.Full disclaimer

Found an error? Let us know