- Routes
- Citizen by descent, registered at the consulate
- Dual citizenship
- Kept on every open route
The stamps assume no one in the line became a citizen of another country before the next person in the line was born. What changes each answer is below.
On this page›
- 01Who qualifies
- 02Dates that matter
- 03Mothers’ lines
- 04Keeping your citizenship
- 05The routes and the law
- 06The documents
- 07What it takes
- 08Where the records live
- 09Law changes
- 10Other doors
- 11Sources
01Who qualifies
Who qualifies, generation by generation
LIKELY
Can you claim Mexican citizenship through a parent?
Citizen by descent
A child of a Mexican parent is Mexican and is registered at the consulate.
POSSIBLE
Can you claim Mexican citizenship through a grandparent?
Citizen by descent, generation by generation
Nationality passes from parent to child without a generational limit, but each generation must be registered as a citizen for the next to claim through them. Your parent registers first; then you.
What would settle itWhether your parent (and grandparent, if needed) can be registered as Mexican nationals first.
POSSIBLE
Can you claim Mexican citizenship through a great-grandparent?
Citizen by descent, generation by generation
Nationality passes from parent to child without a generational limit, but each generation must be registered as a citizen for the next to claim through them. Your parent registers first; then you.
What would settle itWhether your parent (and grandparent, if needed) can be registered as Mexican nationals first.
02Dates that matter
The dates that matter
No date named in Mexico’s rule decides who qualifies. The answers above turn on the family’s facts, not on when anyone was born or left.
03Mothers’ lines
How mothers’ lines were treated
Mexico’s rule gives the same answer whether the line runs through a mother or a father.
04Keeping your citizenship
Dual citizenship with your home country
You keep your citizenship.
On every open route, the rule lets a citizen of the United States, Canada, the United Kingdom, Australia, New Zealand, Brazil, Argentina or South Africa keep that citizenship.
05The routes
Every route, and the law behind it
Citizen by descent
Open through a parent
The law
- POSSIBLE
Through a grandparent
The law
What would settle an unsure case
- Whether your parent (and grandparent, if needed) can be registered as Mexican nationals first.
06The documents
The documents, as the rule lists them
Citizen by descent
Through a parent
- Your parent’s Mexican birth certificate or identity document
- Your birth certificate, apostilled and translated
- Your parents’ marriage certificate
Citizen by descent, generation by generation
Through a grandparent or great-grandparent
- Your ancestor’s Mexican birth certificate
- Birth and marriage records for each generation, each registered at the consulate in turn
Most countries also want proof that no one in the line became a citizen elsewhere before the next birth: the naturalization record with its date, or a letter that none exists.
07What it takes
What it takes: time, cost, the hard part, who decides
Citizen by descent
- Time
- Same-day to a few weeks at the consulate for registration; the passport follows.
- Cost
- About $100–300: consular fee, apostilled and translated U.S. records.
- The hard part
- None. Bring your parent’s Mexican birth certificate and your apostilled U.S. birth certificate to an appointment.
- Who decides
- Any Mexican consulate in the U.S., by appointment (MiConsulado).
- The first record
- Your parent’s Mexican birth certificate (acta de nacimiento), from The Registro Civil, online. Enter the CURP or name and birthplace; the certified copy downloads for a small fee. gob.mx ↗
How it’s filed
- Where
- The Registro Civil desk of a Mexican consulate in the U.S. (the one for your area; MiConsulado offers slots at other consulates too), by appointment. office list ↗
- How
- In person; you appear in person
- Appointments
- MiConsulado: phone or WhatsApp +1 (424) 309-0009, or citas.sre.gob.mx. citas.sre.gob.mx sits behind Radware bot protection and blocks automated clients; MiConsulado is a phone/WhatsApp line. An agent can prepare the call script and documents, but a person books. Some consulates release Registro Civil slots at fixed times (Austin: Mondays 1 pm by phone/WhatsApp). Mobile consulates and weekend sessions also register births.
- Fee
- No fee
- Decision
- 1–9 weeks
What goes in the file (7)›
- Solicitud de Registro de Nacimiento, fully completed in black or blue ink
- Your U.S. birth certificate, original, long form (letter size, showing the time of birth and parents' details); abstracts are refused. No apostille for U.S.-issued certificates; one issued in another country must be apostilled
- The Mexican parent's acta de nacimiento, original (the online-printed digital acta is valid)
- Your official photo ID, original, with your full name as on the birth certificate
- Your valid foreign passport or valid driver's license
- Two photocopies of everything (most consulates)
- Where the consulate asks: two adult witnesses with photo ID, present on the day
What goes wrong (8)›
- Free: 'El registro de nacimiento no causa cobro de derechos y la primer acta es gratuita' (Austin); additional certified copies $19–20 each ($20 in the 2026 fee table).
- Some consulates (Austin) check the documents at a first appointment and register at a second; others register the same day. The Mexican acta is issued at registration.
- An adult registers themselves without the parents present; the parent's Mexican acta must be the original.
- A child of a Mexican by naturalization is Mexican by birth only if born after the parent's naturalization.
- Mexicans by birth cannot lose Mexican nationality since 20 March 1998; a parent who naturalized abroad before that date should first obtain the Declaratoria de nacionalidad mexicana por nacimiento ($24).
- After registration, get the CURP (gob.mx/curp) before the passport appointment. Unverified: whether the consulate assigns it at registration.
- From CA: Mexican consulates in Canada run the same process; a Canadian birth certificate must be apostilled (Canada joined the Apostille Convention in 2024) and, if in French, translated. Unverified: Canadian booking channel.
- From GB, AU, NZ, ZA, BR, AR: file at the Mexican embassy or consulate; the local birth certificate must be apostilled, and translated into Spanish if not in English (Brazilian records in Portuguese need a translation).
Checked 25 September 2026 · source ↗
Citizen by descent, generation by generation
- Time
- A few weeks per generation; each registration is done at the consulate.
- Cost
- About $200–500 across the generations.
- The hard part
- Your parent registers first, then you. If a grandparent’s record is old, the Registro Civil may need to reissue it.
- Who decides
- Any Mexican consulate in the U.S.
- The first record
- Your ancestor’s Mexican birth certificate (acta de nacimiento), from The Registro Civil, online. Search by name and birthplace; older records may require the state’s Registro Civil office. gob.mx ↗
How it’s filed
- Where
- A Mexican consulate in the U.S., once for each generation in turn, by appointment. office list ↗
- How
- In person; you appear in person
- Fee
- No fee
- Decision
- 1–6 months
What goes in the file (4)›
- Step 1, your parent: their Solicitud de Registro de Nacimiento, their foreign long-form birth certificate, the Mexican grandparent's original acta de nacimiento, their photo ID and passport or driver's license
- Step 2, you: your Solicitud de Registro de Nacimiento, your long-form birth certificate, your parent's new Mexican acta (issued by the consulate in step 1), your photo ID and passport or driver's license
- Photocopies of everything, and witnesses where the consulate asks
- If the Mexican grandparent naturalized abroad before 20 March 1998: their Declaratoria de nacionalidad mexicana por nacimiento, if the consulate asks
What goes wrong (3)›
- Since the 17 May 2021 amendment to Constitution Art. 30(A)(II), a child born abroad to a Mexican parent is Mexican by birth even if that parent was also born abroad, so the chain has no generational limit, but each generation must be registered before the next.
- The parent must appear for their own adult registration. Unverified: how a consulate handles a deceased intermediate parent; expect to need the SRE's guidance (possibly a court or registry procedure in Mexico).
- The takes quote a few weeks per generation; the range allows for a second appointment per registration and for booking waits.
Checked 25 September 2026 · source ↗
Estimates are honest ranges from official fee tables and what families report; where a fee or time could not be confirmed, it says so.
08Where the records live
Where each record lives, and how to ask for it
birth1860–2026
The Registro Civil of the Mexican state where the birth was registered (each state's Dirección del Registro Civil and its municipal oficialías), served nationally through RENAPO's online platform.
Online by CURP on the national platform (the entity of registration is chosen first). If the acta is not digitised or has errors, write to the state Registro Civil or the oficialía of the town (template), or have a relative in Mexico request it in person.
- Fee
- 139 MXN (about $8)
- Takes
- 1–9 weeks
Good to know (7)›
- Fee set by each state, not federally: reported MXN 59 (Quintana Roo) to MXN 254 (Baja California), about MXN 139 on average in 2026 (secondary source; the portal shows the exact amount before payment).
- Since 2026 the online acta requires a Llave MX account (CURP, email, phone) and a captcha, so it is not agent-automatable without the member's own login; the printed digital acta with electronic signature has full legal validity.
- Alternative: any Mexican consulate prints certified copies of Mexican civil-registry actas for $20 each (2026 consular fee table), by appointment.
- gob.mx/ActaNacimiento redirects to miregistrocivil.gob.mx, which served an incomplete TLS chain to automated fetchers on 2026-09-25.
- Actas registered late (not in the year of birth) are 'extemporáneas' and some consulates ask for supporting documents.
- Unverified: how far back each state has digitised; pre-1930s actas often still need the state archive or the oficialía.
- No single national postal address or email exists for an un-digitised acta: each state's Registro Civil or municipal oficialía handles paper requests separately (confirmed 2026-09-25); write to the state or municipality directly, as in the RC_LETTER template above.
Checked 25 September 2026 · source ↗
birth1600–1859
The Catholic parish (fe de bautismo), with older books often at the diocesan archive. Civil registration began with the Reform Laws of 1859–1860.
The parish of the town of birth; FamilySearch's filmed Mexican parish registers help find the entry first.
- Ask
- By email, in Spanish
- Takes
- 1–6 months
Good to know (2)›
- Practically never needed: every generation after 1860 has a civil acta, and the consulate needs only the parent's Mexican acta.
- Unverified fee: parishes set their own charge or ask for a donation.
Checked 25 September 2026 · source ↗
marriage1860–2026
The Registro Civil of the Mexican state where the marriage was registered; a Mexican's marriage abroad may be registered at a Mexican consulate.
Not required for registering a birth at a consulate (the application only records whether the parents were married); needed only to fix a name discrepancy.
- Takes
- 1–9 weeks
Good to know (1)›
- Same platform, same state-set fees, same Llave MX requirement as birth actas.
Checked 25 September 2026 · source ↗
citizenship
The Secretaría de Relaciones Exteriores (SRE), through any consulate: the Declaratoria de nacionalidad mexicana por nacimiento, for a Mexican by birth who lost Mexican nationality by naturalizing elsewhere before 20 March 1998.
Needed only if the Mexican parent or grandparent naturalized in another country before 20 March 1998. Since the decree of 22 July 2004 it can be requested at any time.
- Fee
- 24 USD
- Takes
- 1–6 months
Good to know (3)›
- Form DNN-2, the certified Mexican acta, photo ID, the foreign naturalization document (apostilled and translated), two colour photos; $24 at a consulate (2026 table) or MXN 265 at the SRE in Mexico.
- The SRE says the procedure must be done personally, no proxies: a deceased ancestor cannot obtain it.
- Unverified: whether a consulate will register a child born BEFORE 20 March 1998 to a parent who had already naturalized then; ask the consulate, and get the parent's Declaratoria first.
Checked 25 September 2026 · source ↗
Translations
- Into
- Spanish
- Who may translate
- No translation needed
- About
- $0–$50 a page
Consulates in the U.S. take the U.S. long-form birth certificate in English, untranslated and without an apostille. A birth certificate issued outside the U.S. must be apostilled and, if not in English, translated into Spanish. Unverified: whether that translation must be by a perito traductor; the $50 top is an unverified market rate.
Checked 25 September 2026 · source ↗
The passport
- Where
- The same Mexican consulate, by appointment through MiConsulado, with the Mexican acta, official photo ID and the CURP; delivered the same day, usually in about two hours. 2026 fees: $101 (3 years), $137 (6 years), $209 (10 years); 50% off at 60+.
- Fee
- About $137
- Time
- 1–4 weeks
Checked 25 September 2026 · source ↗
09Law changes
Recent and pending changes
The legislative watch has no pending bill or recent ruling recorded for Mexico.
The watch re-reads the official pages behind this guide every day. When one changes, a person re-checks the rule before anything here moves.
10Other doors
If descent doesn’t reach you
2 residence programs lead to Mexico without an ancestor, each with its own law and road to citizenship.