> ## Documentation Index
> Fetch the complete documentation index at: https://docs.conduit.financial/llms.txt
> Use this file to discover all available pages before exploring further.

# Mexico

> How to collect KYB documents from business customers in Mexico (MEX) when onboarding through the Conduit API.

## Overview

| Field | Value |
| - | - |
| Region | Latin America |
| ISO 3166-1 | MX / MEX |
| Registry | Public Registry of Commerce (state-level) + SAT (tax authority) |
| Last updated | 2026-05-04 |

## Identifiers

Collect two identifiers from each business customer in Mexico and submit them as strings on the application body.

| API field | Local name | Issuer |
| - | - | - |
| `businessInfo.taxId` | **RFC** | SAT |
| `businessInfo.businessEntityId` | **Folio Mercantil** | Public Registry of Commerce (state-level) |

*Tax ID:* 12 characters for legal entities (RFC of a persona moral) shown on the Constancia de Situación Fiscal. Personas físicas use 13-character RFCs — not in scope for business onboarding.

*Registration number:* Registry folio assigned when the Acta Constitutiva is recorded.

## Sector regulators

`CNBV` · `CONSAR` · `CNSF` · `COFEPRIS`

## Legal structures

| Local name | Abbreviation | Description |
| - | - | - |
| Sociedad Anónima de Capital Variable | S.A. de C.V. | Variable-capital stock corporation; the dominant commercial entity in Mexico. Shareholders hold transferable shares and liability is limited to paid-in capital. Equivalent to a US C-Corp. |
| Sociedad Anónima | S.A. | Fixed-capital stock corporation under the LGSM; same structure as the S.A. de C.V. but without the variable-capital chapter. Liability limited to paid-in capital; shares are transferable. Equivalent to a US C-Corp. |
| Sociedad Anónima Promotora de Inversión de Capital Variable | S.A.P.I. de C.V. | Investment-promotion stock corporation with enhanced minority-shareholder protections and flexible share structures; commonly used for VC/PE-backed and fintech companies. Equivalent to a US C-Corp. |
| Sociedad por Acciones Simplificada | S.A.S. | Simplified share-capital company introduced in 2016; incorporated online by one or more individuals, with no notary required and a statutory cap on annual revenue. Share-based with limited liability. Equivalent to a US C-Corp. |
| Sociedad de Responsabilidad Limitada de Capital Variable | S. de R.L. de C.V. | Variable-capital, member-managed limited-liability company; members hold quotas rather than freely transferable shares and liability is limited to contributions. Equivalent to a US LLC. |
| Sociedad de Responsabilidad Limitada | S. de R.L. | Fixed-capital limited-liability company; same member-quota structure as the S. de R.L. de C.V. without the variable-capital provision. Equivalent to a US LLC. |
| Sociedad en Nombre Colectivo | S.N.C. | General partnership in which all partners bear unlimited joint and several liability for company obligations. Equivalent to a US General Partnership. |
| Sociedad en Comandita Simple | S. en C. | Limited partnership with at least one general partner bearing unlimited liability and one or more limited partners liable only to the extent of their capital contributions. Equivalent to a US Limited Partnership. |
| Sociedad en Comandita por Acciones | S. en C. por A. | Limited partnership in which limited partners' interests are represented by transferable shares; general partners retain unlimited liability. Equivalent to a US Limited Partnership. |
| Persona Física con Actividad Empresarial | — | Individual (natural person) conducting commercial activity under their own name and RFC; no separate legal entity, personal assets are at risk. Equivalent to a US Sole Proprietorship. |
| Sociedad Cooperativa | S.C.L. / S.C.S. | Member-owned cooperative governed by the Ley General de Sociedades Cooperativas; organized for shared economic benefit without freely transferable capital. Closest US equivalent: Cooperative. |
| Sociedad Civil | S.C. | Civil-law partnership used by professionals (lawyers, accountants, doctors); governed by civil rather than commercial law and not designed for profit distribution to outsiders. Equivalent to a US General Partnership. |
| Asociación Civil | A.C. | Non-profit civil association formed for cultural, educational, charitable, or professional purposes; cannot distribute surplus to members. Equivalent to a US Nonprofit Corporation (501(c)(3)). |
| Sucursal de Sociedad Extranjera | — | Registered branch of a foreign company operating in Mexico; no separate legal personality from the parent entity, which bears full liability. Equivalent to a US Branch/Rep Office. |

## How documents combine

For each evidence area, this table shows whether the listed documents are alternatives (any one of) or a bundle (all required). The artifact-by-artifact lookup follows below.

| Evidence area | Documents needed |
| - | - |
| Legal Registration | *All required:* Acta Constitutiva + Folio Mercantil |
| Constitutive Documents | *All required:* Acta Constitutiva + Estatutos Sociales |
| Tax Registration | Constancia de Situación Fiscal |
| Operating Permit | Licencia de Funcionamiento |
| Ownership Records | *All required:* Acta Constitutiva + Libro de Registro de Acciones |
| Governance Records | *All required:* Acta Constitutiva + Acta de Asamblea |
| Signing Authority | *All required:* Acta de Asamblea + Poder Notarial |
| Address | *Any one of:* Contrato de Arrendamiento · Comprobante de Domicilio · Estado de Cuenta Bancario |
| Good Standing | *Any one of:* Folio Mercantil · Constancia de Situación Fiscal |

## Documents to collect

The physical documents you'll collect from your customer, with the evidence area each one proves. One document can prove multiple areas — for example, Brazil's Cartão CNPJ covers both tax and business-registration proof, so it appears once with both areas listed.

| Document | Proves |
| - | - |
| **Acta Constitutiva** | Legal Registration, Constitutive Documents, Ownership Records, Governance Records |
| **Folio Mercantil** | Legal Registration, Good Standing |
| **Estatutos Sociales** | Constitutive Documents |
| **Constancia de Situación Fiscal (RFC)** | Tax Registration, Good Standing |
| **Licencia de Funcionamiento (municipal)** | Operating Permit |
| **Libro de Registro de Acciones** | Ownership Records |
| **Acta de Asamblea** | Governance Records, Signing Authority |
| **Poder Notarial** | Signing Authority |
| **Contrato de Arrendamiento** | Address |
| **Comprobante de Domicilio (≤90 días)** | Address |
| **Estado de Cuenta Bancario (≤90 días)** | Address |
| **Sector-Specific License** | CNBV, CONSAR, CNSF, COFEPRIS |

### Collection notes

* **Address:** Accepted evidence: lease agreement (no time limit) or utility bill or bank statement dated within 90 days. Either document satisfies both registered-address and operating-address verification.
* **Good Standing:** No standalone good-standing certificate is issued; a recently dated copy of the listed document evidences current standing. Mexico has no standardised national Certificate of Good Standing; a recently dated certified Folio Mercantil extract from the state-level Registro Público de Comercio (collected under business\_registration) reflects current registration status, and a current Constancia de Situación Fiscal from SAT evidences tax good standing.

## Person roles

When you submit a person on the application body, set their `role` to one of Conduit's canonical `BusinessPersonRole` values. Use this table to map a local corporate-governance title onto the right canonical role.

| Local role | Canonical API role | Description |
| - | - | - |
| Presidente del Consejo | `CONTROLLING_PERSON` | Heads the board. |
| Consejero | `CONTROLLING_PERSON` | Board member. |
| Director General | `CONTROLLING_PERSON` | CEO equivalent. Day-to-day management. |
| Administrador Único | `LEGAL_REPRESENTATIVE` | Alternative to a full board — single person manages the company. |
| Apoderado Legal | `LEGAL_REPRESENTATIVE` | Holds notarized power of attorney. |
| Representante Legal | `LEGAL_REPRESENTATIVE` | Authorized to legally represent the company. |

## Notes

* Proof of operating address must be no older than 3 months.


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