The message from the Supreme Court is that not everything goes in inspections. The key to the ruling is clear. The Tax Agency cannot enter a home or business with just a formal consent. That permission must be free, voluntary and, above all, informed.
The Supreme Court annuls an action considering that the taxpayer was not warned of something essential:
- That he/she could refuse the search
- That he/she could revoke consent
Without that information, the consent loses validity.
What changes for taxpayers in the 2025 income tax
This decision arrives at a key moment, with the income tax campaign about to begin. The impact is direct. If Hacienda initiates an inspection:
- Must expressly inform of the taxpayer's rights
- Must leave a record of that notice
- A signature without prior explanation is not enough
This strengthens the taxpayer's position against possible excesses in inspection actions.
The critical point: informed consent or judicial authorization
The Supreme Court sets two sole legal ways for a search:
- Judicial authorization
- Informed consent of the holder
If one of these conditions is not met, the action can be annulled.
The nuance is key. It is not enough for the taxpayer to say “yes”. They have to know exactly what they are saying yes to.
The other open front: access to sensitive data
The court has also opened another relevant debate. It is analyzing whether the Tax Agency can access especially sensitive data, such as medical records or third-party information, within the framework of its inspections.
The case arises after the entry into a doctor's office within a tax investigation. Here the doubt is greater. If that type of access requires stricter legal coverage, even with the rank of organic law.
What rights are at stake
The Supreme Court's decision is not technical and affects fundamental rights:
- Inviolability of the home
- Privacy
- Data protection
- Secrecy of communications
The Court wants to clarify how far the Treasury can go when it investigates.
Why this ruling is key now
The 2025 income tax campaign starts with more control and more data cross-referencing by the Tax Agency. This increases inspections and reviews. And, at the same time, this ruling sets clear limits on how they should be carried out.
What you should take into account if the Treasury inspects you
The decision of the Supreme leaves several practical keys:
- You have the right to know what the Tax Agency is doing
- You can refuse a search if there is no court order
- You can revoke consent if you have already given it
And, above all, any action must be documented.