The Challenge of Cadastral Update

Many property owners in the Municipality of Oaxaca de Juárez and surrounding areas have been unpleasantly surprised when going to pay their property tax: the amount has skyrocketed, sometimes up to 300% or 400% compared to the previous year. The justification is usually a "update of cadastral values," but did you know that most of these increases are illegal?

Why Are Increases Usually Illegal?

For the Municipality to legally increase what you pay in property tax, it must follow a series of formalities that are rarely met. These are the key defense points:

1. Lack of Prior Notification: The authority cannot simply change the value of your house in the system. It must personally notify you of the start of the revaluation procedure and give you the right to a hearing (defense) before the charge becomes effective.
2. Violation of the Principle of Proportionality: According to the Mexican Constitution, taxes must be proportional to the citizen's economic capacity. An unjustified jump in land value that does not correspond to market reality is a violation of your human rights.
3. Lack of Technical Motivation: The city council must justify with expert reports and technical studies why your area is now worth more. If they only apply "general tables" without analyzing your specific property, the act is void.

Success Case: The Shopping Mall Precedent

In our firm, we recently achieved a nullity judgment for a shopping mall in Ocotlán de Morelos. The municipality intended to charge a 400% increase based on discretionary criteria. By taking the case before the Administrative Justice Court, we demonstrated that the update was arbitrary and lacked legal support. The result: a 75% reduction in the charge, returning to fair and legal values.

How to Identify if Your Charge Is Challengeable?

If, when receiving your property tax bill, you notice an increase you consider excessive, check the following:

• Was there a revaluation notification? If the answer is no, you have a great chance of winning.
• Is the tax value higher than the real market value? This is a common cause of nullity.
• Were the early payment benefits applied correctly? Sometimes, the system omits legal discounts that must be enforced.

Steps for Your Defense

1. Request the Detailed Bill: Ask for the breakdown where the unit value of the land and construction is shown.
2. Do not pay under protest: Ideally, challenge before payment if possible, or pay and simultaneously file the Nullity Trial to request a refund of the excess paid.
3. Take deadlines into account: As with fines, you have a limited time (usually 15 days after knowledge of the act or payment) to go to court.

Conclusion

Your assets are the result of years of effort. Do not allow arbitrary municipal charges to put them at risk. Administrative law offers powerful tools to balance the scales between the citizen and the authority. In Oaxaca de Juárez, we are experts in protecting owners against unjustified fiscal greed.

Did your property tax increase unjustifiably this year? We analyze your bill at no cost to determine if a nullity trial is viable. Protect your property with a professional legal strategy.