Countries › Mexico › Guide › 14. Disputes › Cross border litigation with Mexico: serving process, taking evidence, apostilles, foreign interim measures and proving foreign law

Cross border litigation with Mexico: serving process, taking evidence, apostilles, foreign interim measures and proving foreign law

Argentina. For full detail on Argentina, go to The Argentine Thread.

Last verified: 2026-10-26 · Status: Stable

Mexico is a party to the Hague Service Convention since 1 June 2000 and objects to service by mail or directly through judicial officers, so documents for a Mexican defendant should go through Mexico's central authority with a Spanish translation; Mexican courts may not serve people abroad by newspaper notice. Under the Hague Evidence Convention, in force for Mexico since 25 September 1989, requests must be in Spanish, foreign commissioners cannot take evidence, and pre trial document requests are executed only for pending cases and specifically identified documents. Foreign public documents need an apostille (Mexico has applied the Apostille Convention since 14 August 1995), a defendant abroad gets at least 20 business days to answer a Mexican claim, and Mexican judges establish foreign law themselves, treating it as law and not as fact.

Key facts

Hague Service Convention entry into force for the country	2000-06-01 dateHCCH Service Convention (1965), as of 2026-10-26 · in force
Service by postal channels into the country under the Hague Service Convention	No, Mexico objects to art. 10 channels Mexico's declaration on art. 10, as of 2026-10-26 · in force
Hague Evidence Convention entry into force for the country	1989-09-25 dateHCCH Evidence Convention (1970), as of 2026-10-26 · in force
Apostille Convention party	Yes, accession 1 December 1994, in force 14 August 1995 HCCH Apostille Convention (1961), as of 2026-10-26 · in force
Minimum business days for a defendant domiciled abroad to answer a Mexican claim	20 business daysCNPCF art. 1135, as of 2026-10-26 · in force

The rule

1. Hague Service Convention: the central authority route, in Spanish. Mexico acceded on 2 November 1999 and the Convention entered into force for Mexico on 1 June 2000. In its declarations, Mexico requires documents to be served with a Spanish translation and request forms to be completed in Spanish (besides English or French); it objects to the use in its territory of the channels in art. 10 (postal channels and direct service through judicial officers or other competent persons); it does not allow foreign diplomatic or consular agents to serve directly in Mexico except on nationals of their own state, where that does not breach public order or fundamental rights; and service costs are covered by the applicant.
Cost to do it: Service costs are covered by the applicant (Mexico's art. 12 declaration), plus a certified Spanish translation of the documents.Convention of 15 November 1965 on the Service Abroad of Judicial and Extrajudicial Documents in Civil or Commercial Matters (HCCH), Arts. 5, 8, 10 and 12; Mexico's declarations (accession 1999, revised May 2011), 2000-06-01 official text · verified 2026-10-26

2. Default judgments abroad need proof of service or delivery. Mexico declared that it does not recognize the power of a court to give judgment against a defendant who did not appear unless the conditions of art. 15 on service or actual delivery are met, and that an application for relief from a default judgment is not admissible if filed more than one year after the judgment, or a longer period the judge considers reasonable.
Cost to do it: Proper Hague service at the outset avoids losing the judgment at the enforcement stage in Mexico.Convention of 15 November 1965 on the Service Abroad of Judicial and Extrajudicial Documents in Civil or Commercial Matters (HCCH), Arts. 15 and 16; Mexico's declarations, 2000-06-01 official text · verified 2026-10-26

3. Mexican rules on service across borders. Any notice to a person outside Mexico that must take effect in Mexico must be made personally and by the means the law of the place where the person is prescribes; service by newspaper notice (edictos) in Mexico on persons residing abroad is void. Notices from abroad to federal, state or municipal authorities go through the competent federal authorities. A defendant domiciled abroad always has at least 20 business days to answer a claim in a Mexican court, and a foreign court should give a person served in Mexico a similar or longer period.
Cost to do it: No court fee; translations and the foreign service channel are paid by the party.Código Nacional de Procedimientos Civiles y Familiares, DOF 7 June 2023 (Chamber of Deputies consolidated text, last reform DOF 15 January 2026), Arts. 1131, 1132, 1134 and 1135, 2023-06-07 official text · verified 2026-10-26

4. Hague Evidence Convention: Spanish, no commissioners, narrow discovery. The Convention has been in force for Mexico since 25 September 1989 (accession 27 July 1989). Mexico requires letters of request in Spanish or with a Spanish translation, makes a full reservation excluding taking of evidence by diplomatic or consular agents and commissioners (arts. 17 and 18) and their use of compulsory measures, and executes letters of request for production of documents only if the judicial proceeding has started, the documents are reasonably identified (by date, subject and other details) with reasons for believing the person holds them, and the direct relation between the evidence and the pending case is shown. Requests may reach Mexican courts through the central authority, diplomatic or consular channels or directly court to court with legalised signatures; Mexico is also party to the Inter-American Convention on the Taking of Evidence Abroad and its additional protocol.
Cost to do it: Translation into Spanish of the letter of request and attachments.Convention of 18 March 1970 on the Taking of Evidence Abroad in Civil or Commercial Matters (HCCH), Arts. 4, 17, 18, 23, 27 and 32; Mexico's declarations and reservations, 1989-09-25 official text · verified 2026-10-26

5. Mexican courts help foreign proceedings, within limits. Letters rogatory about service, evidence and other procedural steps are executed without homologation; the requested court can simplify or adapt formalities unless that violates human rights or an exception to foreign law applies, and gives 45 calendar days to complete missing documents before rejecting the request. Documents in other languages must come with a translation. A duty to produce documents for a foreign case does not cover documents identified only by generic features, and no court may order a general inspection of non public archives. Hearings can be held by videoconference when the requesting state asks and it is technically feasible.
Cost to do it: No court fee; the requesting party bears translation costs.Código Nacional de Procedimientos Civiles y Familiares, DOF 7 June 2023 (Chamber of Deputies consolidated text, last reform DOF 15 January 2026), Arts. 1140, 1164, 1166, 1169 and 1170, 2023-06-07 official text · verified 2026-10-26

6. Foreign interim measures and equal treatment. Mexican courts may execute interim measures ordered by a foreign court to secure persons and assets; doing so does not commit them to enforce the later judgment, and the measure can be lifted or reduced under Mexican law if the affected party shows it is unjustified. Mexicans and foreigners receive equal procedural treatment and access to the same remedies without special guarantees, but a foreigner may not seek diplomatic protection before exhausting Mexican remedies.
Cost to do it: Security or counter guarantees follow Mexican law (art. 1137).Código Nacional de Procedimientos Civiles y Familiares, DOF 7 June 2023 (Chamber of Deputies consolidated text, last reform DOF 15 January 2026), Arts. 1136 and 1137, 2023-06-07 official text · verified 2026-10-26

7. Apostille and proof of foreign law. Foreign public documents are recognized when apostilled or legalised, and if legalisation is impossible any adequate proof of authenticity may replace it; Mexico applies the Apostille Convention since 14 August 1995 (accession 1 December 1994). Mexican courts must determine the text, meaning, scope and validity of foreign law on their own motion, may request official reports through the Mexican Foreign Service, and treat applicable foreign law as law and not fact; foreign customs and usages are facts to be proven.
Cost to do it: Apostille fees are charged by the authority of the issuing country.Código Nacional de Procedimientos Civiles y Familiares, DOF 7 June 2023 (Chamber of Deputies consolidated text, last reform DOF 15 January 2026); Convention of 5 October 1961 Abolishing the Requirement of Legalisation for Foreign Public Documents (HCCH), CNPCF arts. 1144, 1173 and 1174; Apostille Convention, Mexico accession, 1995-08-14 official text · verified 2026-10-26

8. Argentina at a high level. Argentina is also a party to the Hague Service Convention (in force 1 December 2001), the Evidence Convention (7 July 1987) and the Apostille Convention (18 February 1988), so the same channels apply to Mexico Argentina litigation, each with its own declarations.
Cost to do it: Check the declarations of both states before sending documents.Convention of 15 November 1965 on the Service Abroad of Judicial and Extrajudicial Documents in Civil or Commercial Matters (HCCH); Convention of 18 March 1970 on the Taking of Evidence Abroad in Civil or Commercial Matters (HCCH); Apostille Convention (HCCH), Status tables, 2001-12-01 official text · verified 2026-10-26

Convention	In force for Mexico	Key declarations	Argentina in force
Service (1965)	1 June 2000	Spanish translation; objects to art. 10 channels; costs on applicant; arts. 15 and 16 default rules	1 December 2001
Evidence (1970)	25 September 1989	Spanish; no commissioners (arts. 17, 18); narrow art. 23 document requests	7 July 1987
Apostille (1961)	14 August 1995	None listed	18 February 1988

Mexico's position under the Hague judicial cooperation conventions, verified 26 October 2026 against the HCCH status tables and Mexico's declarations.

Worked example

A Brazilian bank sues a Mexican borrower in São Paulo. To be enforceable later in Mexico, the summons is sent through Mexico's central authority under the Hague Service Convention with a Spanish translation, not by courier, because Mexico objects to art. 10 channels.
Later it needs the borrower's board minutes from a Mexican notary for the Brazilian case. It sends a letter of request in Spanish identifying the specific minutes by date and subject and explaining their relation to the pending case, as Mexico's art. 23 declaration requires.
The resulting Brazilian judgment is then presented in Mexico with an apostille and proof of personal service under CCom art. 1347-A.

Step by step

1. Translate the documents into Spanish and send them through Mexico's central authority listed on the HCCH status page.
2. Do not use mail, couriers or private agents in Mexico for service in a case that may need enforcement there.
3. For evidence, frame document requests narrowly: pending case, specific documents, direct relation (art. 23 declaration).
4. Apostille foreign public documents before filing them in Mexico (CNPCF art. 1144).
5. When suing in Mexico a defendant abroad, allow at least 20 business days to answer and serve personally under the local law (CNPCF arts. 1132 and 1135).

Common traps

Courier or mail service on a Mexican company. Mexico objects to art. 10 channels, and the judgment may fail the personal service condition when enforced in Mexico.
US style discovery. Generic document categories are not produced (CNPCF art. 1140) and art. 23 requests need specifics.
Using commissioners to take depositions in Mexico. Mexico's reservation excludes it.
Newspaper notice. Service by edictos in Mexico on a person living abroad is void (CNPCF art. 1132).
Missing translations. Letters rogatory without Spanish translations are not executed (CNPCF art. 1166).

Sources

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