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Enforcing foreign court judgments in Mexico: the eight conditions, reciprocity, homologation by letters rogatory and the 2027 procedural code deadline

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

A foreign court judgment is not enforced automatically in Mexico: in commercial matters it needs homologation and must meet eight conditions in the Commercial Code, including proper personal service, finality, jurisdiction compatible with Mexican rules and no conflict with Mexican public policy. The court may also refuse if the country of origin does not enforce Mexican or other foreign judgments in analogous cases, and a clause giving Mexican courts exclusive jurisdiction defeats the foreign court's competence; the merits are never reviewed. The procedure is in the national civil procedure code, which every court must apply by 1 April 2027 at the latest: the request arrives by letters rogatory, the parties get nine days, and the decision is appealable, which makes arbitration the faster route for cross border contracts.

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Key facts

Number of statutory conditions for enforcing a foreign commercial judgment	8 conditionsCódigo de Comercio art. 1347-A, as of 2026-10-26 · in force
Reciprocity test for foreign judgments	Yes, enforcement may be refused if the country of origin does not enforce foreign judgments in analogous cases Código de Comercio art. 1347-A, last paragraph, as of 2026-10-26 · in force
Homologation needed to enforce a foreign court judgment	Yes, where enforcement involves coercion CNPCF art. 1190, as of 2026-10-26 · in force
Days the parties have to respond in the homologation procedure	9 daysCNPCF art. 1190, section I, as of 2026-10-26 · in force
Latest date for the national civil and family procedure code to apply in all courts	2027-04-01 dateCNPCF transitory art. 2, as of 2026-10-26 · pending
Apostille Convention party	Yes, accession 1 December 1994, in force 14 August 1995 HCCH Apostille Convention (1961), as of 2026-10-26 · in force

The rule

1. Eight conditions for a foreign commercial judgment. Foreign judgments and court decisions may be enforced in Mexico if: letters rogatory formalities under the treaties Mexico has signed were met; the judgment does not result from an action in rem; the foreign court had jurisdiction under internationally recognized rules compatible with those of the Commercial Code; the defendant was served or summoned personally so it could defend itself; the judgment is res judicata or no ordinary appeal is available in the country of origin; the claim is not the subject of a case already pending between the same parties before a Mexican court that was seized first (or for which the summons by letters rogatory was already delivered); the obligation is not contrary to Mexican public policy; and the judgment is authentic. Even if all are met, the court may refuse enforcement if it is shown that the country of origin does not enforce foreign judgments in analogous cases.
Cost to do it: No court fee (Constitution art. 17); certified copies, apostille, official translation and the letters rogatory route, which adds time.Código de Comercio, DOF 7 October to 13 December 1889 (Chamber of Deputies consolidated text, last reform DOF 14 November 2025, amounts updated by agreement DOF 18 February 2026), Art. 1347-A, 1989-01-04 official text · verified 2026-10-26

2. An exclusive Mexican jurisdiction clause blocks the foreign judgment. The foreign court is deemed to lack jurisdiction when the legal act behind the judgment contains a clause submitting exclusively to the Mexican courts. The national procedural code adds that the foreign court's jurisdiction is not recognized when the choice of forum agreement is void because a party lacked capacity to make it.
Cost to do it: Drafting cost only; choose the forum knowing where the judgment will have to be enforced.Código de Comercio, DOF 7 October to 13 December 1889 (Chamber of Deputies consolidated text, last reform DOF 14 November 2025, amounts updated by agreement DOF 18 February 2026); Código Nacional de Procedimientos Civiles y Familiares, DOF 7 June 2023 (Chamber of Deputies consolidated text, last reform DOF 15 January 2026), CCom art. 1347-A, section III; CNPCF art. 1186, section IV, 2008-12-30 official text · verified 2026-10-26

3. The procedure: letters rogatory, nine days, a hearing and an appealable decision, with no review of the merits. Recognition and enforcement follow the treaties and the national procedural code, which supplements the Commercial Code. Enforcement involving coercion requires homologation. The foreign court's letters rogatory must attach an authentic copy of the judgment, proof of personal service and finality, Spanish translations and an address for notices at the place of the Mexican court. Both parties are summoned personally and have nine days to state their position and offer evidence; a hearing is set for it; the decision on enforcement must be issued within three days after the last evidence and can be appealed in both effects. The court examines only authenticity and how to enforce, never the merits or the reasoning, and may allow partial enforcement. A judgment used only as evidence just has to be authentic.
Cost to do it: Enforcement costs are advanced by the applicant and may later be charged to the debtor (CNPCF art. 1190, section IV).Código Nacional de Procedimientos Civiles y Familiares, DOF 7 June 2023 (Chamber of Deputies consolidated text, last reform DOF 15 January 2026); Código de Comercio, DOF 7 October to 13 December 1889 (Chamber of Deputies consolidated text, last reform DOF 14 November 2025, amounts updated by agreement DOF 18 February 2026), CNPCF arts. 1181, 1184, 1188 and 1190; CCom arts. 1054 and 1063, 2023-06-07 official text · verified 2026-10-26 · changed: The decree of DOF 14 November 2025 replaced the Federal Code of Civil Procedure with the national civil and family procedure code as the supplementary law for commercial cases (CCom arts. 1054 and 1063).

4. Grounds that always bar recognition. No foreign judgment is recognized if, when requested, it is not res judicata, it has no legal effect anywhere in the issuing state, it is contrary to fundamental principles or institutions of Mexican public policy or was issued in fraud of law, or the proceedings were incompatible with the fundamental principles of procedural fairness of Mexican law. The national code also refuses judgments resulting from actions in rem over real estate.
Cost to do it: Proof of finality (a certificate of the foreign court) avoids the most common rejection.Código Nacional de Procedimientos Civiles y Familiares, DOF 7 June 2023 (Chamber of Deputies consolidated text, last reform DOF 15 January 2026), Arts. 1186 (section II) and 1189, 2023-06-07 official text · verified 2026-10-26

5. Court settlements and where to file. A judicial settlement approved by a foreign court can be recognized as a final judgment if a certificate of the foreign court shows that it is enforceable like a judgment in the state of origin. The competent Mexican court is the one of the domicile of the party against whom enforcement is sought or of the place of the assets. Execution follows Mexican law unless different forms are authorized, and auction proceeds are held for the foreign court up to the amount of the judgment.
Cost to do it: One filing where the assets are saves a second set of letters rogatory.Código Nacional de Procedimientos Civiles y Familiares, DOF 7 June 2023 (Chamber of Deputies consolidated text, last reform DOF 15 January 2026), Arts. 1182, 1185 and 1191, 2023-06-07 official text · verified 2026-10-26

6. The national procedural code becomes mandatory everywhere by 1 April 2027. The code enters into force gradually: in the federal courts by declarations of Congress, and in each state by declaration of its legislature, with up to 120 calendar days between declaration and entry into force; if no declaration has been made, it enters into force automatically throughout Mexico no later than 1 April 2027.
Cost to do it: Until then, check which procedural code the chosen court applies; the eight commercial conditions of CCom art. 1347-A apply either way.Código Nacional de Procedimientos Civiles y Familiares, DOF 7 June 2023 (Chamber of Deputies consolidated text, last reform DOF 15 January 2026), Transitory art. 2 of the decree of DOF 7 June 2023, 2023-06-07 official text · verified 2026-10-26

7. Authentication by apostille. Mexico acceded to the Hague Convention abolishing legalisation of foreign public documents on 1 December 1994, in force for Mexico since 14 August 1995, so judgments and certificates from other member states need an apostille rather than consular legalisation.
Cost to do it: Apostille fees are charged by the issuing country's authority, not by Mexico.Convention of 5 October 1961 Abolishing the Requirement of Legalisation for Foreign Public Documents (HCCH), Arts. 3 and 4; Mexico accession, 1995-08-14 official text · verified 2026-10-26

Condition	What to show	Rule
Letters rogatory formalities	Request through the treaty channel with required attachments	CCom 1347-A I; CNPCF 1188
Not an action in rem	Money or personal obligation, not title to Mexican property	CCom 1347-A II; CNPCF 1186 II
Jurisdiction	Basis compatible with Mexican rules; no exclusive Mexican forum clause	CCom 1347-A III
Personal service	Proof the defendant was served personally	CCom 1347-A IV
Finality	Res judicata or no ordinary appeal left	CCom 1347-A V
No prior Mexican case	No earlier pending case between the parties in Mexico	CCom 1347-A VI
Public policy	Obligation not contrary to Mexican public policy	CCom 1347-A VII
Authenticity	Apostille or legalisation and translation	CCom 1347-A VIII
Reciprocity	Origin country enforces analogous foreign judgments	CCom 1347-A, last paragraph

Checklist for a foreign commercial judgment, verified 26 October 2026 against CCom art. 1347-A and CNPCF arts. 1186 to 1190.

Worked example

A Texas court gives a default judgment for USD 500,000 (about MXN 9,251,300) against a Mexican distributor based in Guadalajara. The distributor was served by mail at its Mexican office, which Mexico does not accept under the Hague Service Convention, so the personal service condition (art. 1347-A, section IV) is at risk.
Even with proper service, the creditor must send letters rogatory with the apostilled judgment, proof of finality and translations; the distributor gets nine days to respond and can appeal the enforcement decision (CNPCF art. 1190), and may raise reciprocity.
Had the contract contained an arbitration clause, the award would have been enforced in a special trial with no appeal and no reciprocity test (CCom arts. 1461 to 1476).

Step by step

1. Before suing abroad, plan service in Mexico through the Hague Service Convention central authority, with a Spanish translation, to protect the personal service condition.
2. Obtain the final judgment and a certificate of finality from the foreign court; apostille both.
3. Have the foreign court issue letters rogatory to the Mexican court of the debtor's domicile or assets, with translations and an address for notices (CNPCF art. 1188).
4. Prepare evidence on reciprocity of the origin country in case it is challenged.
5. After homologation, attach and auction assets under Mexican procedure; expect an appeal and possibly an amparo.

Common traps

Mail or private process server service in Mexico. Mexico objects to art. 10 channels under the Hague Service Convention, and defective service defeats the personal service condition.
Default judgments. Mexico declared it does not recognize a court's power to give judgment against a non appearing defendant unless the Hague art. 15 conditions on service or delivery are met.
Exclusive Mexican forum clauses. A clause giving Mexican courts exclusive jurisdiction makes the foreign court incompetent for enforcement purposes.
Judgments about Mexican real estate. Judgments from actions in rem are not enforced; sue where the property is.
Assuming the same speed as awards. Homologation is appealable and comes after letters rogatory; arbitration is faster to enforce.

Sources

← Enforcing arbitral awards in Mexico: New York and Panama Conventions, no homologation, a fast special trial and no appealCommercial litigation in Mexico: choosing the court, oral and executive trials, attachment, appeal thresholds, costs and pre trial measures →