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Study guide · 2026

How the Mexican naturalization exam works (2026).

To become a Mexican citizen by naturalization, most applicants pass two short tests at an SRE office: a 10-question exam on the history and culture of Mexico, and a Spanish test. This guide covers how both work, who is exempt, what it costs, and how to prepare.

What is the Mexican naturalization exam?

Its official name is the Examen de conocimientos sobre historia y cultura de México, the exam on knowledge of the history and culture of Mexico. The Secretaría de Relaciones Exteriores (SRE) gives it as part of the application for a carta de naturalización, the document that grants Mexican nationality to a foreign resident.

It is one step of the process, alongside your documents and a Spanish test. Neither test is a formality: both are scored, and both have a pass mark. The good news is that the format is short and predictable, so a few weeks of focused study go a long way.

How many questions are on the exam, and what score do you need?

questions
10
minutes
10
correct to pass
8
always in Spanish
ES

You answer 10 questions in 10 minutes and need 8 correct answers to pass, which leaves room for two mistakes. The exam is always in Spanish, whatever your nationality or first language.

One minute per question is not much time to reason through something you have never seen. The goal of studying is recognition: reading a question in Spanish and knowing the answer before you reach the options.

What is the Spanish test for naturalization?

Every applicant also takes a Spanish test, including people who are exempt from the history exam. It has three parts: an interview, a reading, and a writing task.

parts: interview, reading, writing
3
points in total
6
points to pass
5
minutes
10

If you already handle daily life in Mexico in Spanish, you have been preparing for this part for years. The history exam is where most of your study time should go.

Who doesn’t have to take the history exam?

Three groups skip the history and culture exam:

  • Applicants aged 60 or older
  • Refugees
  • People who received complementary protection (protección complementaria)

They still take the Spanish test. Marriage to a Mexican national, having Mexican-born children, or being of Latin American or Iberian origin shortens the residency you need, but does not exempt you from the exam.

Which naturalization modalities are there, and how many years of residency do you need?

The years of residency you need depend on your modality:

  • Residency: 5 years
  • Marriage to a Mexican national: 2 years
  • Mexican-born children: 2 years
  • Latin American or Iberian origin: 2 years

The exams are the same in every modality, and so is the fee. What changes is the list of documents you file. The requirements overview walks through each one.

Is the Mexican naturalization exam hard?

It is short, but it isn’t easy to pass without preparing. Three things make it harder than it looks. First, the pass mark: 8 of 10 means you can miss only two questions. Second, the clock: one minute per question leaves little time to work something out. Third, the language: every question is in Spanish, and history vocabulary is not the Spanish you use at the market or the bank.

On the other hand, the scope is fixed and the format doesn’t change. People who study the material in a structured way, and check that they actually know it rather than recognizing it vaguely, go in with a clear idea of how they’ll do.

What happens if you fail the naturalization exam?

You have two attempts, 15 business days apart. If the first one doesn’t go well, use that time to review the topics you hesitated on rather than starting over.

If you fail the second attempt, or don’t show up to the second appointment, you have to wait one year before applying again, and pay the fee again. That is the real cost of going in unprepared, and the reason to take the first attempt seriously.

How much does Mexican naturalization cost in 2026?

The fee is MXN 9,500, the same for every modality. That amount is valid through 31 December 2026. If you pay after that date, check the current amount with the SRE first.

Keep the payment receipt: it is one of the documents in your file.

Where do you take the exam, and how do you register?

Pre-registration happens online at re.sre.gob.mx/sinna. It only works on a computer, not on a phone, so plan to sit at a desktop or laptop for it.

The exam itself is in person, at one of four SRE offices:

  • Mexico City (CDMX)
  • Pachuca
  • Mérida
  • Monterrey

What topics are on the Mexican citizenship test?

The exam’s name sets its scope: the history and culture of Mexico. Mexico Ready organizes that material into 10 topics. Here are two example subjects from each:

  • Pre-Hispanic Mexico: the Olmec, Maya, and Mexica civilizations; the founding of Tenochtitlan
  • Conquest & Viceroyalty: the fall of Tenochtitlan in 1521; life in New Spain
  • Independence & 19th Century: Miguel Hidalgo and the start of the War of Independence in 1810; Benito Juárez and the Reform
  • Revolution & Modern Mexico: the Revolution that began in 1910; the Constitution of 1917
  • Civics & Institutions: the three branches of government; the 32 federal entities
  • Symbols & General Facts: the national flag, anthem, and coat of arms; national holidays
  • Geography: states and their capitals; mountains, volcanoes, and rivers
  • Art, Literature & Film: the muralists and Frida Kahlo; Octavio Paz and Mexican literature
  • Music, Traditions & Food: mariachi; Día de Muertos
  • Science, Education & Sport: the UNAM; Mexican athletes at the Olympic Games

Want to see the format? Try 10 free practice questions, one from each topic.

How should you study for the Mexican naturalization exam?

If you have two to four weeks before your appointment, this order works:

  1. Start with the must-know material. Cover the core facts everyone should know cold before anything else.
  2. Learn it as flashcards. A short cue and a clear answer, one fact at a time, until names and dates feel familiar.
  3. Switch to multiple choice. Recognizing the right answer among similar options is a different skill from recalling it. Read the explanation after every answer, right or wrong.
  4. Be honest about how sure you were. A lucky guess isn’t knowledge. Review what you hesitated on, not only what you got wrong.
  5. Widen to the less common material once the core holds.
  6. Read in Spanish at exam pace. With one minute per question, reading fluently matters as much as knowing the fact.

A three-week plan

  • Week 1: Core flashcards, one or two topics a day. Rate how sure you were each time, and let the weak cards come back.
  • Week 2: Core multiple-choice questions across all topics. Read every explanation, and repeat the sessions built from what you rated 1 to 3.
  • Week 3: Extended questions, plus mixed review of everything. Practice reading each question once, at exam pace.

Leave the last few days for review, not new material. The night before, stop early.

Common questions about the exam

Can I take the exam in English?

No. The history and culture exam and the Spanish test are always in Spanish.

Will the practice questions be the same as the real ones?

No study material can promise that, and you should be wary of any that does. Mexico Ready’s questions are original and written to cover the history and culture of Mexico across 10 topics, so that whatever the exam asks is familiar ground.

Do I take the exam before or after filing my documents?

Both are part of the same application with the SRE. The Guía in the app lists the documents for your modality, and your SRE appointment details tell you what to bring on the day.