General Law on the Strengthening and Harmonization of Cadastral and Property Registry Systems
The new legislation establishes mechanisms to modernize and harmonize cadastral and property registry information in Mexico, with potential tax, property-related and real estate implications.
On October 23, 2026, the General Law on the Strengthening and Harmonization of Cadastral and Property Registry Systems was published in the Official Gazette of the Federation and entered into force on October 24, 2026. The Law aims to modernize, standardize and link cadastral and public property registry information in Mexico through coordination mechanisms among federal, state and municipal authorities.
Its main provisions include the creation of a Unique Cadastral Identifier and a Unique Cadastral and Registry Record, as well as the implementation of digital platforms to facilitate the exchange and updating of real estate information.
From a tax perspective, these mechanisms could strengthen tax audit and enforcement capabilities by facilitating the identification of discrepancies in property areas, structures, uses and cadastral values. However, updated cadastral information does not, in itself, result in an automatic or across-the-board increase in property taxes, which remain subject to applicable legislation.
Regarding real estate transactions, implementation of the Law could have implications for legal due diligence, acquisitions, financing and property development, particularly where discrepancies arise between cadastral records, property registry information and title documents.
Although the Law is already in effect, the new models and platforms are scheduled to be adopted no later than December 31, 2026, with operations beginning on January 1, 2027, in accordance with the schedule published by the competent authorities.
