How to obtain Mexican citizenship: Requirements, procedures, and processing time

Each year, thousands of foreigners learn about how to obtain Mexican citizenship to settle down, expand business opportunities, or reunite with family. According to data from Mexican immigration authorities, the number of applications for Mexican citizenship has steadily increased in recent years, especially from those who have lived in the country long-term.

So, what does the Mexican naturalization process involve? Is it difficult? How long does it take? Is there an exam or interview? These are common questions that Vietnamese people often search for when starting their journey to become Mexican citizens.

In reality, the process of how to obtain Mexican citizenship is quite clear and similar to many other countries: you need to prepare a complete application, pass a basic knowledge test, and wait for approval within a certain period. If you understand the conditions and prepare correctly from the beginning, you can shorten the processing time and avoid unnecessary errors.

This article will help you quickly understand:

• Conditions for obtaining Mexican citizenship

• Documents to prepare

• Exam and interview process

• Actual processing time

If you are considering building a long-term life in Mexico, this will be a practical guide to help you get started on the right foot.

Part 1: Conditions for applying for Mexican citizenship

Case 1: Mexican citizenship by birth

You are automatically a citizen if born in Mexico

• According to Mexican nationality law, anyone born in Mexican territory is recognized as a Mexican citizen by birth.

• This regulation applies regardless of the parents' nationality.

• This is the simplest way to obtain Mexican citizenship, as there is no need for a citizenship test or proof of residency.

Procedures for confirming citizenship at birth

• Typically, citizenship registration is done within the child's first year of life.

• Parents will register the birth at the local civil registry office to obtain a Mexican birth certificate (Acta de Nacimiento).

• After registration is complete, the child is fully recognized with the rights of a Mexican citizen.

If not registered as a child, documents can still be submitted later

• If the procedure was not completed previously, you can still confirm Mexican citizenship by place of birth at any time.

• You will need to prepare:

  • Birth certificate or hospital records from Mexico

  • Parents' identification documents

  • Documents proving legal place of birth

• The application will be submitted to the civil registry office or the relevant citizenship authority.

Advantages of obtaining Mexican citizenship by birth

• No need to prove residency period

• No need to take a history or culture test

• No need to go through a complex naturalization process

• Full citizen rights, including the right to apply for a Mexican passport and the right to vote when of age

Case 2: Obtaining Mexican citizenship after 5 years of residency

Condition 1: Hold Mexican permanent residency

• If you were born abroad and wish to obtain Mexican citizenship, you first need to be granted Permanent Resident status.

• After obtaining the permanent resident card, you must maintain this status continuously for 5 years before submitting a citizenship application.

• During this time, you must fully comply with residency regulations and Mexican law.

Conditions for obtaining permanent residency

You can apply for permanent residency in Mexico if you belong to one of the following groups:

• Have family ties with a Mexican citizen or someone who is already a permanent resident

• Demonstrate sufficient financial means to live long-term

• Granted political asylum

• Or fall under other legal categories according to Mexican immigration law

In actual application consulting, financial factors and family ties are the two most common bases for Vietnamese people to qualify for permanent residency.

When to start the residency procedure

• You need to start your residency application within the first 30 days after entering Mexico.

• The procedure can be registered online first, then completed at the immigration office.

• Late submission may affect your legal residency status.

No renewal needed once permanent residency is obtained

• After obtaining a permanent resident card, you do not need to renew it annually like temporary residency.

• This helps stabilize legal status and facilitates plans to apply for Mexican citizenship after 5 years.

Important note to shorten the timeframe

• If you have held a temporary resident card for 4 consecutive years, you can switch to permanent residency without starting over.

• This is a practical way for many to shorten the path before becoming eligible to obtain Mexican citizenship through residency.

Case 3: Obtaining Mexican citizenship through marriage

Can I obtain citizenship by marrying a Mexican citizen?

• Yes. If you are legally married to a Mexican citizen, you can apply for Mexican citizenship by marriage.

• This is one of the common naturalization categories, and the waiting period is shorter than for the 5-year residency category.

Mandatory conditions before submitting an application

Before applying for citizenship, you need to:

• Prove a legal marriage relationship with a Mexican citizen

• Have legal residency status in Mexico in the form of:

  • Temporary resident card or

  • Permanent resident card

• Maintain residency status for at least 2 continuous years before the application submission date

In actual application processing, authorities may verify the authenticity of the marriage to prevent cases of sham marriages for the purpose of naturalization.

Advantages of the marriage category

• Shorter residency requirement compared to the general category

• No need to wait for a full 5 years of permanent residency

• Increased ability to demonstrate a long-term connection with Mexico

Important notes to avoid risks

• Marriage must be legally registered and valid

• Both spouses need to prove they are genuinely cohabiting

• The application should include complete residency documents, marriage certificate, and documents proving the relationship

Case 4: Obtaining Mexican citizenship for Latin or Iberian descendants

Who can apply under the shortened 2-year residency category?

• If you are a citizen of a Latin American country or belong to the Iberian Peninsula, you can apply for Mexican citizenship after 2 years of legal residency.

• This period is significantly shorter than the standard 5-year residency category.

Residency requirements before submitting an application

You will need to:

• Have legal residency status in Mexico (temporary or permanent residency)

• Maintain continuous residency for at least 2 years

• Comply with immigration regulations and not violate Mexican law during your stay in Mexico

In actual review, maintaining stable residency and a clean legal history are crucial factors determining whether an application is approved.

How to prove nationality origin

To qualify for this category, you must provide:

• Birth certificate showing nationality

• Valid passport

• Additional documents as required by the authorities

Documents must be apostilled or legalized and translated if not in Spanish.

Countries eligible for priority status

• Countries in Central and South America (excluding some non-Latin American countries)

• The two countries of the Iberian Peninsula: Spain and Portugal

Case 5: Obtaining Mexican citizenship by descent

Born abroad but with Mexican parents

• If one or both parents are Mexican citizens, you can apply for Mexican citizenship by descent even if born outside Mexican territory.

• This regulation also applies to legally adopted children of Mexican citizens.

• This is one of the categories with the shortest residency requirements.

Mandatory residency requirement

Before applying for citizenship, you need to:

• Reside in Mexico for a minimum of 1 year

• Possess legal residency status (temporary or permanent)

• Fully comply with residency regulations and local laws

In practical experience, many applications are delayed due to a lack of continuous residency proof, so it is essential to keep all documents proving the period of residence.

Documents required to prove kinship

• Your birth certificate

• Parent's Mexican birth certificate or passport

• Documents confirming parent-child relationship (if there was a name change or adoption)

• Legalized and translated documents if issued abroad

The reviewing authority will thoroughly check the legality and continuity of the documents.

Advantages of kinship route

• Residency period of only 1 year

• No long-term permanent residency requirement

• Procedure is usually simpler than the 5-year residency route

If you have a Mexican parent, confirming Mexican nationality by origin is the fastest and most practical path to becoming a legal citizen. The most important thing is to prepare clear documents and ensure legal residency status before applying.

Part 2: Detailed Mexican naturalization procedure

Step 1: DNN-3 application form for Mexican nationality

Mandatory submission of DNN-3 form for all naturalization types

• Whether you are applying for Mexican nationality by residency, marriage, kinship, or Latin American origin, form DNN-3 is a mandatory document.

• This is the official form issued by the Mexican diplomatic authority for evaluating Mexican nationality by naturalization.

Information to be filled in the DNN-3 form

You will need to provide full:

• Personal information (full name, date of birth, current nationality)

• Address of residence in Mexico

• Marital status

• Family information

• Assets or economic activities (if any)

Practical experience shows that applications are most often returned due to missing information or inconsistency with residency documents.

Must be filled in Spanish

• The form must be completed in Spanish.

• You can:

  • Fill it out directly on the computer and then print it

  • Or print a blank form and write by hand in black ink

Do not use abbreviations or other languages, as this may result in a request for additional documentation.

Prepare 2 copies when submitting the application

• Print and bring 2 complete copies to the nationality application appointment.

• Carefully check the signature before submitting.

The DNN-3 form serves as the foundation. Filling it out accurately from the start will help the application be processed quickly and reduce the risk of having to submit additional documents later.

Step 2: Mandatory documents for Mexican nationality application

Prepare all personal identification and residency documents

Regardless of the type of Mexican nationality you are applying for, the reviewing authority requires a set of documents to verify your identity and legal residency status. Basic documents include:

• Mexican residency card (temporary or permanent)

• Foreign birth certificate

• Valid foreign passport

These are the fundamental documents for all Mexican nationality applications.

Mandatory preparation of full copies

• Bring at least 2 copies of each document when submitting your application.

• It is advisable to prepare an additional third set of copies to keep at home in case additional documents are needed.

• Photocopy all pages of the passport, including blank pages.

In actual case processing, many cases are asked to return because only the personal information page was photocopied, omitting pages with entry and exit stamps.

Possibility of retaining original documents

• Authorities may retain some original documents for their records.

• Therefore, preparing backup copies is a necessary step to avoid disrupting other administrative procedures.

Important notes to avoid application rejection

• Information on the residency card, passport, and DNN-3 form must match.

• If the birth certificate is not in Spanish, it needs to be translated and legalized according to regulations.

• Expired documents will not be accepted.

Step 3: Letter of declaration of entry and exit history for 2 years