Mexican Citizenship: Naturalization, Birth and Descent (2026)
You are Mexican by birth if you were born in Mexico or born abroad to a Mexican parent, and since a 2021 constitutional reform this applies to any generation born abroad. Foreigners can naturalize through Mexico's Foreign Ministry (SRE) after usually 5 years of legal residency, or 2 years for spouses of Mexicans, parents of Mexican children, and nationals of Latin American countries, Spain, and Portugal. Applicants must pass an exam on Spanish and Mexican history and culture, with some exemptions.
On this page
- By birth
- Born in Mexico, or born abroad to a Mexican parent
- Naturalization, general rule
- 5 years of legal residency in Mexico
- Reduced to 2 years
- Spouses of Mexicans, parents of Mexican children, Latin American and Iberian nationals
- Who decides
- Secretaría de Relaciones Exteriores (SRE)
- Document
- Carta de naturalización
- Exam
- Spanish and knowledge of Mexican history and culture
- Dual nationality
- Mexicans by birth cannot lose Mexican nationality
How can you become Mexican?
| Route | Who it fits | Main requirement | How it happens | Status |
|---|---|---|---|---|
| Birth in Mexico | Anyone born on Mexican territory | Birth in Mexico | Automatic; register the birth | Open |
| Nationality by descent | People born abroad to a Mexican parent | A Mexican parent, in any generation since 2021 | Register the birth at a consulate or civil registry | Open |
| Naturalization, general | Permanent or temporary residents | 5 years of legal residency | Application to the SRE | Open |
| Naturalization, reduced period | Spouses of Mexicans, parents of Mexican children, Latin Americans, Spaniards, Portuguese, descendants of Mexicans | 2 years of legal residency | Application to the SRE | Open |
Mexico does not sell citizenship. Every naturalization route requires legal residency first; see permanent residency and temporary residency.
Mexican by birth and by descent
Mexico's Constitution (Article 30) makes you Mexican by birth if:
- you were born in Mexico, whatever your parents' nationality
- you were born abroad to a Mexican parent. Before a 2021 reform, this covered only the first generation born abroad; the reform removed that limit, so a child of a Mexican born abroad can also be Mexican
- you were born on a Mexican ship or aircraft
If you are Mexican by descent, you do not need residency or naturalization. You register your birth at a Mexican consulate or civil registry and can then get a Mexican passport and INE voter card. See citizenship by descent.
Who can naturalize?
The Nationality Law sets the residency you need before applying:
| Your situation | Residency needed before applying |
|---|---|
| Most foreigners | 5 years |
| Married to a Mexican, living together in Mexico | 2 years |
| Parent of a child who is Mexican by birth | 2 years |
| National of a Latin American country, Spain, or Portugal | 2 years |
| Direct descendant of a Mexican by birth | 2 years |
You must also generally:
- not have been outside Mexico for more than 6 months in total in the 2 years before you apply
- show a legal residence card for the whole period
- pass the SRE exam on Spanish and Mexican history and culture, unless you are exempt (older applicants have exemptions)
- have no disqualifying criminal record
- formally renounce your other nationality before the SRE and swear allegiance to Mexico
See the step-by-step naturalization guide.
Registering a birth abroad
If you are the child or grandchild of a Mexican and want to claim nationality, the usual steps are:
- Get your foreign birth certificate with an apostille (or legalization) and, if needed, a Spanish translation.
- Collect proof of your Mexican parent's nationality, such as their Mexican birth certificate, passport, or certificate of nationality. If your parent was also born abroad, register their birth first.
- Book an appointment at a Mexican consulate (civil registry section) or, if you are in Mexico, at a state civil registry office.
- Receive a Mexican birth certificate (acta de nacimiento), then apply for your CURP and a Mexican passport.
Consulates set their own document lists, so check the consulate's website before your appointment. See the consulate directory.
Common reasons for delays or refusal
- Too much time abroad. Absences of more than 6 months in total during the 2 years before applying can make you ineligible.
- Gaps between residence cards. A card that lapsed before renewal can break your count of years.
- Document problems, such as missing apostilles, translations, or name differences between documents.
- Criminal records in Mexico or abroad.
- Failing the exam. Study Mexican history, geography, and civics before your exam date.
If you have any doubts about your eligibility, a licensed Mexican immigration lawyer can review your case before you pay the fee.
Can you keep your other citizenship?
- Mexicans by birth cannot be deprived of their Mexican nationality, so they can hold another nationality too.
- Naturalized Mexicans must formally renounce their other nationality to Mexico. Whether you actually lose it depends on the other country's law; many countries, including the US and Canada, do not treat this as a loss of their citizenship.
- Naturalized Mexicans can lose Mexican nationality in some cases, for example by presenting themselves as foreigners in official documents or using a foreign passport, or by living abroad for 5 years in a row.
Read dual citizenship before you apply.
What citizenship gives you
Compared with permanent residency, Mexican nationality lets you:
- hold a Mexican passport
- vote and run for most offices (some posts are reserved for Mexicans by birth)
- own property directly in the restricted zone near coasts and borders without a trust
- live abroad without risk to your status (for Mexicans by birth)
Some jobs, such as certain military, maritime, and aviation positions, are reserved for Mexicans by birth.
As a citizen you also leave the immigration system behind: no more residence cards, renewals, or INM notices of changes to your address or job.
How the naturalization process works
- Check your years of legal residency and your time abroad, using the dates on your residence cards and passport stamps.
- Gather documents: your valid residence card, passport, birth certificate (apostilled and translated), proof of your reduced-period basis if any, and a criminal record check.
- Apply to the SRE and pay the fee.
- Take the exam on Spanish and Mexican history and culture, unless exempt.
- Renounce your other nationality and swear allegiance before the SRE.
- Receive your carta de naturalización, then apply for a Mexican passport.
Keep copies of every residence card and INM receipt from your years in Mexico, because the SRE can ask for the full history of your legal residency.
Compare the rules with US citizenship and Canadian citizenship.
Frequently asked questions
How many years do I need to live in Mexico to become a citizen?
Usually 5 years of legal residency. It is 2 years if you are married to a Mexican and live together in Mexico, have a child who is Mexican by birth, are a national of a Latin American country, Spain, or Portugal, or are a direct descendant of a Mexican by birth.
Am I Mexican if my parent is Mexican but I was born abroad?
Yes. You are Mexican by birth, and since a 2021 constitutional reform this applies even if your Mexican parent was also born abroad. Register your birth at a Mexican consulate or civil registry to get documents.
Does Mexico allow dual citizenship?
Mexicans by birth can hold another nationality and cannot lose Mexican nationality. Naturalized Mexicans must formally renounce their other nationality to Mexico, but whether that takes effect depends on the other country.
Do I have to speak Spanish to become a Mexican citizen?
Most applicants must pass an exam that tests Spanish and knowledge of Mexican history and culture. Some applicants, such as older people, may be exempt; check with the SRE.
Does time as a temporary resident count toward naturalization?
Yes. Legal residency as a temporary or permanent resident generally counts, as long as it was continuous and you did not spend too long outside Mexico.
Official sources
General information, not legal advice. NorthAmericans.com is independent and not affiliated with any government.