Tax Number In Mexico: An Expats Guide

Navigating the fiscal seas of a new country can be a voyage fraught with mystifying terminologies and bewildering bureaucracies.

Yet, here at, we chart the uncharted, de-mystify the mystifying, and simplify the intricate!

Dive in as we explore the ins and outs of acquiring a tax number in Mexico

What Is The Tax Number In Mexico

In Mexico, the tax number is known as the “Registro Federal de Contribuyentes(RFC). Essentially, it is a 13-digit alphanumeric number for any physical person and a 12-digit alphanumeric number for any moral/legal person (a company) in Mexico.

The RFC is used to track tax obligations and facilitate proper documentation and reporting to the Mexican tax authority, known as the Servicio de Administración Tributaria (SAT). 

The RFC is derived from an individual’s name and birthdate or a business entity’s registration information.

It is used in most procedures either with public or private entities. It is a unique identification number assigned to individuals and businesses for tax purposes. 

The RFC is used for various transactions, including filing taxes, conducting business, and opening bank accounts.

Where Do You Find Your Mexican Tax Number

You can take these methods to locate your Mexican tax identification number (RFC): 

  1. If you are an individual: Your name and birthday are normally used to determine your RFC. On official papers like your passport, driver’s license, or voter identity card, it is often printed
  2. Your RFC is often printed on official tax registration papers, such as your business registration certificate or tax identity card, if you are a business organization.
  3. The Mexican tax authority’s website offers an online RFC search tool for individuals who   cannot locate their RFC on official documents or need to obtain a new one.
  4. As an alternative, you can go to your neighborhood SAT office or tax assistance center and ask for help locating or collecting your RFC.

It’s crucial to keep in mind that the procedure could change based on your particular circumstances, therefore it’s advised to speak with a tax expert or get in touch with the SAT directly for tailored advice.

What Is The Tax ID In Mexico?

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In Mexico, each person and company is given a special tax ID called the “Registro Federal de Contribuyentes” (RFC), which is used to manage tax obligations and make it easier to document and submit financial and economic activities to the Servicio de Administración Tributaria (SAT).

Tax Identification Types For Mexico

All customers and vendors must a have federal tax identification number. The identification type used for a customer or vendor depends on whether the customer or vendor is classified as a company or as a person.
In Mexico, a legal entity, such as a company or a person, is assigned a tax identification number according to two types.

Registro Federal de Contribuyentes (RFC)

This tax identification type can be applied to companies and to people. An RFC number for a company is 12 characters, while an RFC number for a person is 13 characters.

Cédula de identification fiscal con clave única de registro de población (CURP)

This tax identification type can only be applied to people. A CURP number is 18 characters.

When you create a new customer or vendor in Business Central, you specify whether the customer or vendor is a company or a person, and then you specify the tax identification type.

The tax identification type and the tax identification number are included in any reports that reference tax information about a customer or vendor.

Who Needs Your Tax ID In Mexico?

  1. Employers: Your RFC is needed by your employer for payroll purposes and to report your income to the tax authorities.
  2. Tax Authorities: The Servicio de Administración Tributaria (SAT), the Mexican tax authority, requires your RFC for tax filing, reporting, and compliance purposes.
  3. Banks and Financial Institutions: When opening a bank account or conducting financial transactions, such as loans or investments, banks may request your RFC for identification and reporting purposes.
  4.  Government Organizations: Various government organizations, such as those in charge of social security, pensions, or welfare benefits, may need your RFC for administrative reasons.
  5.  Suppliers and Clients: In the course of conducting business, suppliers and clients may ask for your RFC for tax and billing purposes.
  6. Landlords: When you rent a property, a landlord could ask for your RFC for paperwork and verification needs.
  7.  Insurance Companies: When you apply for insurance products like life insurance or health insurance, insurance companies could ask for your RFC.
  8. Legal entities and notaries: Your RFC may be requested when interacting with notaries or other legal institutions for identification and legal paperwork needs.

Where Do You Find Your Mexican Tax ID?

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To find your Mexican Tax ID (RFC), you have a few options:

1. Tax ID card (Cédula de Identificación Fiscal): If you have previously obtained your RFC, you should have a Tax ID Card. This card will have your RFC printed on it. You can find your RFC on the front or back of the card, usually in the format of three letters followed by six numbers and two additional characters.

2. Previous Tax Documents: If you have filed taxes in Mexico before, you can find your RFC on previous tax documents, such as tax declarations or receipts. Look for your RFC printed on these documents.

3. SAT Portal: You can also find your RFC by accessing the Servicio de Administración Tributaria (SAT) portal. Visit the SAT website ( and navigate to the “RFC” section.

4. You will need to provide your personal information, such as your full name, date of birth, and CURP (Clave Única de Registro de Población) to retrieve your RFC.

4. Visit a SAT Office: If you can’t locate your RFC through the provided methods, you can visit a local SAT office in person with your identification documents, such as your passport and proof of address.

Remember to keep your RFC confidential and provide it only to authorized entities that require it for legitimate purposes.

What If You Have Lost Your Mexican Tax ID

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If you have lost your Mexican Tax ID (RFC), you can retrieve it by following these steps:

SAT Portal

Visit the webpage of the Tributary Administration Service (SAT). Find the option to restore your RFC by going to the “RFC” section.

To get your RFC, you’ll probably have to give personal information such as your complete name, birthdate, and CURP (Clave Nica de Registro de Población).

Contact SAT

If you are unable to retrieve your RFC through the SAT portal, you can contact the SAT directly for assistance. You can reach out to their customer service or visit a local SAT office in person. 

Provide them with your personal information, such as your full name, date of birth, and any other relevant details and they should be able to assist you in retrieving your RFC.

Consult with a Tax Professional

If you are facing difficulties in retrieving your RFC, you may consider consulting with a tax professional or accountant who can guide you through the process and provide further assistance.

It is important to take steps to retrieve your RFC as it is necessary for various financial and tax-related transactions in Mexico.

What Is The Freelance Tax Number In Mexico

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Freelancers operating in Mexico are required to obtain an RFC code in order to comply with billing and tax regulations. It is necessary to register with the SAT and provide precise personal and work details.

Adherence to both client communication and regulatory compliance standards is mandatory. The RFC code plays a crucial role in tracking financial activities and fulfilling tax obligations.

 Lastly, it is important to prioritize obtaining your RFC code to ensure smooth business operations.

What Is The VAT Number In Mexico

Mexico’s VAT tax rate is 16%. However, there are instances in which this rate can vary depending on the commercial activities performed by a company. In Mexico, the VAT number is popular as the “Número de Identificación Fiscal” (NIF) or “Número de Identificación Tributaria” (NIT).

This number is filling a place trades and things the one are recorded for Value Added Tax (VAT), that is named “Impuesto al Valor Agregado” (IVA) in Mexico. The NIF/NIT is a singular unique identifying number secondhand for tax purposes, particularly had connection with VAT. 

It is circulated a piece Servicio de Administración Tributaria (SAT), the Mexican tax expert. 

The NIF/NIT helps label taxpayers recorded for VAT and is secondhand for tabulate, tax newsgathering, agreement, and ideas accompanying the tax experts.

To get an NIF/NIT in Mexico, trades and things need to register accompanying the SAT. 

The enrollment process usually includes providing private and trade facts, in the way that name, address, tax responsibilities, and added appropriate analyses.

Once recorded, the SAT will appoint a singular NIF/NIT to the resident. Having an NIF/NIT is important for trades and things busy in payable ventures in Mexico, as it admits bureaucracy to obey VAT requirements, issue decent invoices, claim VAT credits, and meet their tax responsibilities.


So, you’ve traversed the bureaucratic jungles and emerged with a tax number in hand! It’s your key to a seamless, compliant stay in this vibrant country. And remember, when the tax terrains get tough, is your trusty guide through the intricate landscapes of expat life.

Happy Trails!

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