A Turning Point in Major GDPR Litigation
In March 2026, the Administrative Tribunal of Luxembourg annulled the €746 million GDPR fine imposed on Amazon by the Luxembourg data protection authority.
The decision is one of the most significant developments in European privacy litigation since the General Data Protection Regulation (GDPR) entered into force in 2018.
The case illustrates an important principle of European administrative law:
even the largest regulatory sanctions must be supported by a legally robust and carefully reasoned decision.
The ruling also came within days of another high-profile development: the Rome Tribunal annulled a €15 million fine imposed on OpenAI concerning ChatGPT.
Together, these decisions highlight an evolving phase of judicial scrutiny over major GDPR enforcement actions.
The Background: The Record GDPR Fine Against Amazon
In July 2021, Luxembourg’s National Commission for Data Protection (CNPD) imposed a €746 million administrative fine on Amazon, the largest GDPR fine ever issued in Europe.
The case focused primarily on Amazon’s processing of personal data for behavioral advertising purposes.
The authority concluded that certain advertising practices did not comply with the requirements of the GDPR, particularly with respect to:
- the lawful basis for processing personal data (Article 6 GDPR)
- transparency obligations toward users (Articles 12–14 GDPR)
Behavioral advertising involves tracking user activity in order to build profiles and deliver targeted ads.
Under the GDPR, such processing must rely on a valid legal basis and must be communicated clearly to data subjects.
Amazon challenged the CNPD decision before the Luxembourg administrative courts.
March 2026: The Luxembourg Administrative Tribunal Annuls the Fine
In March 2026, the Administrative Tribunal of Luxembourg annulled the €746 million fine.
Importantly, the court did not simply close the case.
Instead, it referred the matter back to the CNPD for reconsideration.
This procedural outcome means that:
- the regulatory authority may reopen the case
- the legal reasoning underlying the sanction must be reconsidered
- a new decision could potentially be issued following further analysis
The judgment therefore represents a procedural reset rather than a definitive exoneration.
However, the decision sends a clear message regarding the legal standards required for major administrative sanctions under the GDPR.
Why the Court Decision Matters
The ruling does not suggest that GDPR enforcement against large technology companies is weakening.
Instead, it emphasizes a fundamental requirement of European administrative law:
a regulatory sanction must be supported by precise legal reasoning and carefully articulated findings.
When an administrative authority imposes an exceptionally large fine, the court expects a particularly rigorous justification of:
- the legal characterization of the alleged violations
- the factual analysis supporting the findings
- the reasoning behind the amount of the sanction
In large-scale regulatory disputes, every element of the decision may be examined by the court.
This level of scrutiny is typical in high-value administrative litigation across Europe.
Another Major Decision the Same Week: The OpenAI Case
Only a few days after the Amazon decision, another significant ruling occurred in Europe.
On March 18, 2026, the Tribunal of Rome annulled a €15 million fine imposed on OpenAI by the Italian data protection authority concerning the operation of ChatGPT.
The Italian authority had raised several concerns, including:
- the legal basis for processing personal data used to train the model
- transparency obligations toward users
- age verification mechanisms
- the notification of a personal data breach in 2023
The detailed reasoning of the Rome court decision has not yet been fully published at the time of writing.
However, the proximity between the Amazon and OpenAI rulings has attracted significant attention among privacy professionals.
A Broader Trend: Judicial Scrutiny of Major GDPR Sanctions
Taken together, these cases illustrate an important development in the lifecycle of the GDPR.
During the first years of enforcement, regulatory authorities focused on investigations and administrative sanctions.
Now, an increasing number of these sanctions are being reviewed by national courts.
This judicial phase is a normal evolution of regulatory frameworks.
As high-value enforcement actions multiply, courts inevitably play a larger role in interpreting the boundaries of regulatory power.
The Amazon and OpenAI cases therefore signal the emergence of a new phase of GDPR litigation characterized by deeper judicial oversight.
What This Means for Companies Handling Personal Data
For companies operating in Europe, the key takeaway is straightforward.
The annulment of a specific administrative fine does not weaken the underlying obligations imposed by the GDPR.
Organizations that process personal data must still ensure compliance with core legal principles, including:
- identifying a lawful basis for processing personal data
- ensuring transparency toward data subjects
- documenting data governance and compliance processes
- implementing safeguards for high-risk processing activities
Regulatory enforcement remains active across Europe, and the financial exposure associated with GDPR violations remains significant.
Key Takeaway
The annulment of the €746 million GDPR fine against Amazon highlights an essential principle of European regulatory law:
the effectiveness of enforcement depends not only on the size of the sanction but also on the legal robustness of the decision supporting it.
As courts increasingly review major regulatory actions, the future of GDPR enforcement will likely be shaped as much by judicial interpretation as by regulatory investigations.
For legal teams and privacy professionals, this evolving landscape reinforces the importance of both substantive compliance and careful legal analysis of enforcement decisions.
