> ## Documentation Index > Fetch the complete documentation index at: https://v2.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.