Mexico has introduced a major overhaul of how homes, land, and other properties are recorded and managed.
On October 23, 2026, the government published the Ley General para el Fortalecimiento y Armonización Catastral y Registral in the Diario Oficial de la Federación. The law took effect the following day, with new digital systems scheduled to begin operating in January 2027.
So what does this mean if you own property in Mexico? And could your property taxes increase?
What's Changing?
Currently, Mexico's property information is maintained through two types of records:
Catastro (Cadastre): Records a property's location, dimensions, physical characteristics, and information used for taxation.
Registro Público de la Propiedad (Public Property Registry): Records legal information about ownership and other registered property rights.
These systems don't always share information efficiently, which can lead to discrepancies, paperwork delays, and difficulties verifying property records.
The new law aims to connect them and standardize procedures nationwide.
Among the biggest changes:
1. A unique identification number for properties. Each property entered in the cadastral register will be assigned a Clave Única Catastral, designed to link its cadastral information to its corresponding property registry record.
2. A combined property record. A new Cédula Única Catastral y Registral will bring together information from both systems.
3. More digital services. New platforms will support property-related applications, electronic payments, and official notifications, using Mexico's Llave MX digital identification system.
Importantly, the new cadastral identification number is not, by itself, full proof of ownership, possession, property size, or boundaries. Article 28 explicitly limits its legal effect.
Will Your Property Taxes Increase?
The new law does not create a new property tax, mandate higher tax rates, or require an automatic nationwide property revaluation.
The law does not change the existing powers of local authorities to administer and collect predial.
However, there's an important distinction.
Updated property records could identify discrepancies in existing cadastral information. If those discrepancies lead to a revised valuation under applicable local rules, an individual homeowner's annual property tax (predial) could increase.
When Will the Changes Happen?
The legislation sets December 31, 2026, as the deadline for cadastral and registry authorities to adopt the new models and platforms.
Operations are scheduled to begin January 1, 2027, subject to an implementation calendar and local technical capacity.
State legislatures also have 180 days to make necessary legal adjustments, while state executive authorities and municipalities have 180 business days to carry out applicable regulatory harmonization.
Do Property Owners Need to Do Anything?
The new law does not establish a blanket requirement for homeowners to immediately re-register their property or obtain a new deed.
Is Your Home in Mexico Properly Insured?
Whether you own a full-time home, vacation home, or condo in Mexico, the right insurance can protect you from costly surprises — from hurricanes and earthquakes to theft, fire, and liability claims.
We've partnered with Ransom Becker Insurance Solutions, an experienced, English-speaking insurance broker who can help you find coverage that fits your property and budget.
