Open Public Will Mexico (Testamento Público Abierto)

An Open Public Will Mexico (Testamento Público Abierto) is the most common and legally secure form of testamentary disposition available to residents and citizens of Mexico, governed by the Código Civil Federal (CCF) Articles 1511 through 1539 and by the applicable state civil code of the testator's domicile. Article 1511 CCF defines the testamento público abierto as the will that the testator (testador) declares orally or in writing before a Notario Público and at least two competent witnesses, who must be present at the same time and hear the expression of the testator's last wishes. The Notario Público then drafts the will instrument, reads it aloud to the testator and witnesses, and all parties sign the document in each other's presence — after which the notary authorises (auktoriza) the instrument and registers it in the Protocolo Notarial (notarial register) maintained at the notaría.

Under the Código Civil Federal, succession law falls within a dual legislative framework: the CCF governs federal territories and serves as the suppletory framework, while each of Mexico's 31 states and Mexico City (Ciudad de México) maintains its own civil code governing succession within state boundaries. For practical purposes, succession of real property (bienes inmuebles) is governed by the civil code and public registry of the state where the property is located, while succession of personal property (bienes muebles) may be governed by the civil code of the testator's domicile. A testamento público abierto that complies with the CCF is generally recognised across all Mexican jurisdictions.

The testamentary capacity (capacidad testamentaria) requirements under Article 1306 CCF are straightforward: the testator must be of legal age (18 years or emancipated minor with judicial authority), must be in full possession of their mental faculties (en pleno uso de sus facultades mentales) at the time of execution, and must not be subject to a judicial declaration of incapacity (interdicción). Article 1307 CCF establishes that any testator who was capable at the time of execution remains bound by the will regardless of any subsequent incapacity.

The Notario Público plays a central role in Mexican succession law. Notaries in Mexico operate under state Leyes del Notariado — each of Mexico's 32 federal entities has its own Ley del Notariado governing the appointment, jurisdiction, fees (aranceles notariales), and obligations of notaries within that territory. The Colegio de Notarios del Distrito Federal (now Ciudad de México) and equivalent state colleges (colegios notariales) supervise professional conduct and maintain registers of wills. The Archivo General de Notarías in Mexico City and equivalent state archives preserve notarial instruments permanently.

Upon the testator's death, the testamento público abierto is executed through a procedimiento sucesorio (succession proceeding) before a Notario Público (for uncontested successions — sucesión extrajudicial) or before a Juzgado Familiar or Civil (for contested successions — sucesión judicial). The notarial succession proceeding, introduced as an alternative to court proceedings in many states, is significantly faster and less expensive. The herederos (heirs) must present the death certificate (acta de defunción issued by the Registro Civil), the original will, and identification documents. The notary then drafts the Declaración de Herederos (heirs declaration), and the assets are transferred through separate formalities — real property through a compraventa or adjudicación deed registered with the Registro Público de la Propiedad; bank accounts through direct notification to financial institutions with an apostilled copy of the succession documents.

For real property assets, the transfer of inheritance is subject to the Impuesto sobre Adquisición de Inmuebles (ISAI) — a state and municipal acquisition tax ranging from 2% to 4% of the assessed value depending on the state — and to capital gains ISR (Impuesto sobre la Renta) obligations where applicable under LISR Article 93 Section XXII, which provides an ISR exemption for inherited residential property received by direct family members (cónyuge, hijos, ascendientes).

The Registro Nacional de Avisos de Testamento (RENAT), administered by the Asociación Nacional del Notariado Mexicano (ANNM), allows testators and their families to verify whether a will has been executed and identify the notary who holds it — a critical resource for heirs who may not know the location of the testamento público abierto after the testator's death. Registration of the will notice (aviso testamentario) with RENAT is a standard step performed by the Notario Público after authorising the will instrument.

An Open Public Will Mexico is required — or strongly advisable — for any Mexican resident or citizen who owns assets in Mexico and wishes to control the distribution of those assets upon death, rather than having the estate distributed under the mandatory intestate succession rules (sucesión legítima) of the applicable state civil code.

A Testamento Público Abierto is needed when a property owner holds real estate (casa, departamento, terreno, local comercial) registered with the Registro Público de la Propiedad — without a will, real property passes under intestate rules to the herederos legítimos (surviving spouse and descendants in equal shares under CCF Article 1606), which can result in co-ownership (copropiedad) complications, particularly when the heirs cannot agree on whether to sell, rent, or occupy the property.

The will is required when the testator wishes to deviate from the default intestate distribution — for example, to benefit a non-relative partner (concubino/a), a charitable organisation, or a specific family member to a greater extent than intestate law would provide. Under CCF Article 1368, certain relatives (spouse, descendants, and ascendants who depend economically on the testator) have a right to a pension (alimentos) from the estate regardless of the will's provisions — the testamento público abierto must account for these alimentary rights.

A Testamento Público Abierto is particularly important for foreign nationals (extranjeros) who reside in Mexico or own Mexican real property, as inheritance by foreign heirs of Mexican real estate may be subject to special procedures before the Secretaría de Relaciones Exteriores (SRE) if the property is in the zona restringida (50 km coastal / 100 km border strip under Article 27 of the Constitución).

The will is needed when the testator holds financial assets — bank accounts, investment accounts (cuentas de inversión), AFORE retirement savings, insurance policies — and wishes to designate beneficiaries (beneficiarios). Many financial institutions in Mexico allow direct designation of beneficiaries on accounts independent of succession proceedings, but a testamento público abierto provides a comprehensive and legally binding backup disposition for all assets not otherwise covered.

Under Código Civil Federal art. 1511, the Ley del Notariado of the applicable state, and the Registro Nacional de Avisos de Testamento (RENAT) system, execution of a Testamento Público Abierto before a licensed Notario Público is the gold standard for succession planning in Mexico, providing notarial authentication, permanent archiving in the Protocolo Notarial, and searchability through RENAT.

A valid Open Public Will Mexico under the Código Civil Federal Articles 1511–1539 and applicable state Leyes del Notariado must contain the following essential elements to be legally effective and admissible in succession proceedings.

Testator Identification: Full legal name, date and place of birth, CURP (Clave Única de Registro de Población), RFC (Registro Federal de Contribuyentes), official identity document number (INE/IFE credential, passport, or Tarjeta de Residencia Permanente for foreign nationals), marital status (estado civil), and domicile of the testator. The testator's marital regime — sociedad conyugal (community of property) or separación de bienes (separation of property) under the Código Civil — determines which assets form part of the testator's estate (herencia) versus community property.

Declaration of Testamentary Capacity: Explicit statement that the testator is of legal age, is in full possession of mental faculties at the time of execution, and is not subject to any judicial declaration of incapacity (interdicción judicial), as required by Articles 1306 and 1307 CCF.

Notary and Witnesses: The name, notaría number, and state jurisdiction of the Notario Público before whom the will is executed, and the full names, identity document numbers, and addresses of the two competent witnesses (testigos), who must be adults in full possession of their faculties and who cannot be heirs or legatees under the will (Article 1497 CCF).

Asset Description: A comprehensive inventory of the testator's assets — real property with full registry description (número de folio real del Registro Público de la Propiedad, clave catastral, surface area, and location), bank accounts (institución bancaria, number, and CLABE interbanking key), vehicles (número de placas, VIN, título de propiedad), business interests (RFC of the entity, share percentage), and personal property of significant value. Precise asset description prevents disputes during the adjudicación (distribution) phase.

Designation of Heirs and Legatees: Identification of the herederos universales (universal heirs who inherit the entire estate or proportional shares) and, if applicable, legatees (legatarios) who receive specific assets or sums. Under Article 1285 CCF, the testator may freely designate heirs and legatees subject only to the alimentary rights (derechos alimentarios) of dependant relatives under Article 1368 CCF. The will should designate substitute heirs (herederos sustitutos) in case a named heir predeceases the testator.

Alimentary Rights Clause: Where the testator has a surviving spouse, minor children, or dependent ascendants, the will must address the pension alimenticia (alimentary obligation) to which they are entitled under Article 1368 CCF regardless of the testamentary disposition.

Executor Designation: Appointment of an albacea (estate executor) — who may be one of the heirs or an independent third party — responsible for administering the estate, paying debts, and overseeing distribution. The albacea's powers and compensation may be specified or left to the default provisions of Articles 1679 through 1757 CCF.

Registration with RENAT: After authorising the will, the Notario Público files an aviso testamentario with the Registro Nacional de Avisos de Testamento (RENAT), maintained by the Asociación Nacional del Notariado Mexicano (ANNM). The RENAT number should be noted in the will instrument or in the notarial file (expediente).

Forms-legal.com provides this Open Public Will Mexico template as a preparation guide and information resource. A Testamento Público Abierto must be executed before a licensed Notario Público with two witnesses present — it cannot be self-drafted and self-executed. Consult a Notario Público in the state of your domicile or where your principal assets are located for the formal execution, applicable notarial fees (aranceles), and RENAT registration.