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HRT Consulting · Mexico Immigration Lawyers

Mexican Citizenship by Naturalization: How It Works.

In short

Naturalization is the procedure for becoming a Mexican citizen as a foreigner. It is handled by the Ministry of Foreign Affairs (SRE), not the INM, and requires a period of residence in Mexico, a knowledge test and a formal renunciation of your prior nationality before Mexican authorities. Some situations have shorter periods.

Is this for you?

  • You have lived in Mexico as a resident for several years and want citizenship.
  • You are married to a Mexican citizen and live in Mexico.
  • You are from Latin America or the Caribbean, or a descendant of a Mexican, and the law sets a shorter period.
  • You have Mexican-born children and want to review your options.

General requirements

Residence period
The Nationality Law requires, as a general rule, a period of residence in Mexico immediately before applying. For some cases, such as marriage to a Mexican citizen or certain nationalities, the period is shorter. It is counted from your immigration history.
Provable legal residence
Resident card, travel and entry records and, when requested, proof you have lived in Mexico lawfully. Long absences can affect the count.
Birth certificate and personal documents
Birth certificate, apostilled or legalized and translated by a certified translator; passport, CURP and, for marriage cases, the marriage certificate and your spouse's documents.
Knowledge test
A test on Mexican history and culture and on the Spanish language, as set by the SRE. Official study guides exist.
Renunciation of prior nationality and oath
The law requires you to renounce your prior nationality before Mexican authorities, along with any submission to or protection from other states. It is a formal act with consequences; we talk it through before you decide.
Application, fees and supporting proof
The SRE application form, payment of fees under the Federal Fees Law in force and documents showing your address and lawful way of living.

Periods, test and documents vary depending on the ground (ordinary residence, marriage, origin, Mexican children). We verify which one applies and what the SRE requires today.

Step-by-step process

  1. Step 1: Verify ground and time

    We review your immigration history and family situation to see whether you already meet the period and which ground suits you best.

  2. Step 2: Gather and legalize documents

    Civil records, certificates and supporting proof are apostilled or legalized and translated when needed. We check that data is consistent.

  3. Step 3: File with the SRE

    The application is filed with the SRE with your full package. You are assigned a test date when applicable.

  4. Step 4: Knowledge test

    We prepare you with the study guide and the topics that are usually covered, so you arrive confident and without surprises.

  5. Step 5: Renunciation, oath and naturalization certificate

    If the SRE decides in your favor, you make the renunciation and oath before the authority and receive the naturalization certificate. Then come your documents as a Mexican citizen, such as birth record, CURP and passport.

Estimated timelines

Estimated timelines
Before applying Depends on completing the residence period required by the ground that applies to you.
Preparing the file Several weeks to a few months, mostly because of apostilles and translations.
SRE decision Usually measured in several months. An exact timeline is hard to give because it depends on SRE workload and on any requests for corrections.

Common mistakes

  • Applying before the required period is complete, or miscounting it by not reviewing travel records and absences.
  • Overlooking that your home country may have its own rules on losing or keeping nationality when you naturalize.
  • Filing civil records with no apostille or with translations that are not by a certified translator.
  • Showing up for the test unprepared because 'it is just basic history'.
  • Not asking about the consequences of renouncing your prior nationality before starting.

What our support includes

  • A consultation to identify your ground, the period that applies and whether you can already apply.
  • Review of your immigration history and your time spent outside Mexico.
  • File assembly, with review of apostilles and translations.
  • Preparation for the knowledge test.
  • Direct contact with the lead attorney, in English or Spanish, by video call.
  • Follow-up with the SRE and defense if there is a denial, through the challenge routes available.

Fees are explained after the consultation, based on your case.

Questions about this process

How many years do I need to naturalize?
The law sets a general residence period, with shorter periods for cases such as marriage to a Mexican citizen, certain origins or Mexican children. We confirm the exact period that applies to you.
Do I have to give up my nationality?
Mexican law requires you to renounce your prior nationality before Mexican authorities. What that does in your home country depends on its laws, and it is worth checking before you decide.
Is the test hard?
It covers basic history, culture and language. With preparation it is usually manageable, and official guides exist. We help you prepare.
Is it handled at the INM?
No. Naturalization is handled by the Ministry of Foreign Affairs (SRE). The INM comes in earlier, because your immigration history is the basis for the residence period.
Do I lose my residency when I naturalize?
Once you obtain Mexican nationality you are no longer a foreigner, so you no longer hold an immigration status. You take on the rights and duties of a Mexican citizen.

General information, not legal advice. Requirements and timelines can change; confirm them in your consultation.

Start with a one-hour consultation

You leave with your route, document list and plan. USD 50, credited toward your case.

The USD 50 is credited toward your case if you hire us.