Mexico – Information on Tax Identification NumbersSection I – TIN DescriptionUnder this item, jurisdictions should provide a narrative description of the criteria governing theissuance of the TIN (e.g. some jurisdictions may only issue TINs to individuals, or to individuals thatare filing tax returns; other jurisdictions may also issue TINs to (as subset of) Entities). In addition,information about the TIN issuing bodies, as well as the taxes for which the TIN is used as means ofidentification (e.g. income tax, wage tax, withholding taxes, VAT, etc.). In case a jurisdiction issuesseparate TINs for different taxes (e.g. income taxes, VAT, etc.), jurisdictions should only provideinformation in relation to the TINs they would expect to be provided for identification purposes in thecontext of the CRS.Furthermore, jurisdictions may provide any useful information regarding the validity and frequency ofrenewal of TINs, as well as any recent changes made to the structure of their TINs.Any further information regarding TINs that jurisdictions deem useful for publication on the CRS Portalmay also be added in this narrative section.The Mexican Tax Administration Service assigns a unique number (Clave en el Registro Federal deContribuyentes - RFC) to each person enrolled in the Registry; the issued RFC has a special structuredepending on the type of taxpayer (individual or legal person). The latter is the only distinction providedfor in the Mexican tax provisions.The registration process is available both online and directly at the Local Administration for TaxpayerAssistance (Administración Desconcentrada de Servicios al Contribuyente) of the Mexican TaxAdministration Service.The documents required to obtain the registration are:a) Individuals. - (1) Birth certificate or CURP (Clave única de registro de población - UniqueKey of Population Registry); (2) proof of address; (3) government-issued identification and (4)online pre-registration number (if applicable).b) Legal persons.- (1) Certificate of incorporation; (2) proof of address; (3) power of attorney andidentification of the authorized representative of the legal person, and (4) online preregistration number (if applicable).Mexican Tax Code (art. 27) also establishes the obligation to register in the Federal Taxpayer Registryand obtain a RFC for partners and shareholders of legal persons, except (1) those who are members ofnon-profit legal persons, and (2) those who acquired their shares through recognised stock markets andthose shares are considered as regularly traded in such markets, as long as the shareholder is notregistered in the books of that legal person.The abovementioned Code (art. 42) grants the tax authorities the possibility to request taxpayers withinformation necessary to update the Federal Taxpayer Registry, as well as to register those taxpayerswho, in accordance with the tax provisions, are obliged to be registered and have not fulfilled suchrequirement.The registration in the Federal Taxpayer Registry is mandatory for all legal persons, includingasociaciones en participación, associations, permanent establishments and, under specialcircumstances, fideicomisos.1

In case of individuals, such obligation is mandatory for those who are required to file tax returns or toissue electronic tax invoices regarding the acts or activities they carry out, or for the income they earn,as well as individuals who open a financial account in an institution of the Mexican financial system orin savings and loan cooperatives where they receive deposits or perform transactions liable to tax.Additional information on the mandatory issuance of Tax Identification Numbers (TINs)Question 1 –Does your jurisdiction automatically issue TINs to all residents for tax purposes?INDIVIDUALSNOENTITIESNO(If no, instances where individuals and Entities are not being automatically issued a TIN are:)In Mexico there is no automatic procedure for issuing a TIN (Clave en el Registro Federal de Contribuyentes- RFC) to individuals or entities, it is the responsibility of the obliged individual or entity to register in theFederal Taxpayer Registry to obtain a TIN.According to the Mexican tax laws and regulations, the only legal entities and individuals obliged to registerto obtain a TIN are those who (i) are required to file periodic tax returns or to issue digital tax invoices forthe activities carried out or for the income earned, (ii) open a financial account (at FIs pertaining to theMexican financial system as well as Cooperative Savings and Loan Societies with respect to transactions thatmay be subject to taxation).Additionally, entities are obliged to submit the notifications set forth by the Federal Fiscal Code regardingtheir legal representatives as well as partners and shareholders.Section II – TIN StructureThis section contains information on the alphanumeric structure of the TIN, the use of slashed, capital letter,hyphens, etc. In addition, jurisdictions would outline the meaning given to the numbers and letters that makeup the TIN (including for instance the use of check digits).The structure of the RFC varies depending on the type of taxpayer.For individuals, it consists of 13 characters (4 letters followed by 6 digits and 3 alphanumeric characters) andfor legal persons (and certain legal arrangements), it consists of 12 characters (3 letters followed by 6 digitsand 3 alphanumeric characters). The first letters (4 or 3, respectively) belong to the name, the next 6 digitsare the date of birth or date of incorporation, and the last 3 (or 2, for legal entities) belong to the check digits(homoclave).2

Section III – Where to find TINs?In this section, jurisdictions should list the official documents where the TIN can be found, such as the photopage of passports, social security cards, corporate documents, etc. Ideally, jurisdictions would provide scansof the documents on which they would highlight the place where the TIN can be found.Taxpayers who register in the Federal Taxpayer Registry will be provided with a tax identification numberknown as Federal Taxpayer Registry Code (RFC), as well as with a tax identification card or certification oftax registration once they comply with all the requirements set forth by the Mexican Tax AdministrationService.Below, please find the documentation obtained from the Mexican Tax Authorities:3


CERTIFICATION OF TAX SITUATIONFRONTBACKSection IV – TIN information on the domestic websiteIn this section, jurisdictions can provide hyperlinks to their domestic website where further information onTINs can be found. In addition, jurisdictions could provide a link to an online TIN-verification tool, ifavailable.For further information: fiscal/tramites/inscripcion as tematicas/programa cumplimiento voluntario/Paginas/guia apoyo inscribirse rfc.aspxOnline TIN Verification ltaRFC/Section V – Contact point for further informationUnder this header, jurisdictions would provide the contact details of the competent service within their taxadministration, which can be contacted in case of further questions on tax residency.Mexican Competent Authority:Central Administration for Legal Support and International Tax Legal Affairs (Administración Central deApoyo Jurídico y Normatividad Internacional)Avenida Hidalgo 77, Módulo III, P.B., Col. Guerrero, Delegación Cuauhtémoc, C.P. 06300, México, D.F.Tel. 52 (55)5802-13015