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Mexican Dual Citizenship

How to Obtain Dual Mexican Citizenship by Descent If You Were Born in the U.S.

Many Californians born in the United States to Mexican parents are eligible for dual citizenship. This process, known as “dual nationality by descent”, allows you to be officially recognized as a Mexican citizen “by birth” without giving up your U.S. citizenship.

Here’s a step-by-step guide on how to register your Mexican nationality from California and enjoy the benefits of having two passports.

1. Confirm You Qualify

The rule is straightforward: if you were born outside of Mexico and at least one of your parents is Mexican, you have the right to be registered as a Mexican citizen.

Since March 20, 1998, Mexico has allowed dual nationality, which means you do not lose your U.S. citizenship when you claim your Mexican nationality. This is important for Californians who want to hold both passports without legal conflicts.

2. Choose Your Mexican Consulate in California & Start Your Apostille

The next step is to identify which Mexican consulate in California corresponds to your residence. Some of the major consulates are located in Los Angeles, Santa Ana, San Bernardino, San Diego, Sacramento, and San Francisco.

Appointments must be scheduled through the MiConsulado system, available by phone, WhatsApp (+1-424-309-0009), or online. Walk-ins are generally not accepted for this process.

3. Gather the Required Documents

To register your birth in Mexico, the consulate will ask for a standard set of documents. Typically, you’ll need:

  • Long-form U.S. birth certificate (no “abstract” or short forms).
  • Government-issued ID (passport or state ID for adults; for minors, any photo ID that resembles the child).
  • Proof of Mexican parent’s nationality, which can be a Mexican birth certificate, valid Mexican passport, matrícula consular, or a nationality declaration.
  • Parents’ marriage certificate if they married before your birth. If they married after or never married, the father must appear in person or grant a notarized power of attorney to be listed on the Mexican record.
  • U.S. Naturalization Certificate (if the Mexican parent naturalized in the U.S. after your birth; shown for reference only and returned).

👉 If you need certified copies, translations, or apostilles, our teams at Orange County Apostille and Your Local Notary Public can help you prepare everything correctly.

4. Make Sure Names Match Across All Documents

One of the most common issues is mismatched names. The consulate will check that the parents’ names on your U.S. birth certificate exactly match their Mexican IDs and records.

If there are discrepancies (spelling mistakes, missing middle names, inverted order), you may need to amend your U.S. birth certificate or provide additional supporting documentation. In some cases, assistance from a notary or legal professional may be needed.

5. Attend the Two-Visit Consulate Process

The process generally requires two visits:

  • Visit 1: Document review. If everything is in order, the consulate will schedule you for the second visit.
  • Visit 2: Civil registration, fingerprints, and signatures. On this same day, the consulate issues your Mexican birth certificate (acta de nacimiento mexicana).

The registration itself is free. You only pay for extra certified copies if you want them.

6. Obtain Your CURP (Mexican ID Number)

Once you have your Mexican birth certificate, you can request your CURP (Clave Única de Registro de Población), which is Mexico’s national identity number. You’ll need it for nearly all government, banking, and school-related processes in Mexico. The consulate can help you register and issue it, or you can check it directly through RENAPO.

7. Apply for Your Mexican Passport

Although optional, it’s highly recommended to apply for a Mexican passport once you have your birth certificate.

To apply, you’ll need to book a separate passport appointment at the consulate, bring your Mexican birth certificate, and show valid ID. Passport fees vary depending on the validity (3, 6, or 10 years for adults).

8. Get Your Voter ID (INE) and Matrícula Consular (Optional)

As a Mexican citizen living abroad, you can request an INE voter card and a matrícula consular. Both serve as official proof of Mexican nationality. The matrícula is especially useful as a form of identification in the U.S., while the INE allows you to vote in Mexican elections from outside the country.

9. Travel Requirements with Dual Citizenship

The United States requires that its citizens enter and exit the U.S. with a U.S. passport. However, when entering Mexico, you can use your Mexican passport, which saves you from needing a visa and grants you full rights as a Mexican national.

Do You Need an Apostille?

  • If you register at a Mexican consulate in the U.S.: generally, an apostille is not required for your U.S. birth certificate.
  • If you choose to register your U.S. birth certificate directly in Mexico: you will need to apostille the birth certificate and submit a certified translation by a court-authorized translator in Mexico.

If you’re in California and need this service, Orange County Apostille specializes in authenticating U.S. documents for use abroad, and Your Local Notary Public provides certified translations to meet consular and court requirements.

Conclusion

Claiming your dual Mexican citizenship is very achievable from California as long as you gather the correct documents and follow the consulate’s process. With your Mexican birth certificate, CURP, and passport, you can live, travel, and work with the rights and privileges of both nations.

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