Portuguese Citizenship Law: Reform to be Reviewed for Constitutional Compliance. Decision Postponed
Yesterday, several news outlets reported that the Portuguese Socialist Party (PSP) had decided to request fiscalização preventiva da constitucionalidade (preventive constitutional review) of the recently approved proposal to amend the Portuguese Citizenship Law.
In public statements, the party explained that this request was motivated by institutional and procedural considerations, noting that the method and speed of parliamentary approval justified the use of this constitutional guarantee. As the party explained, preventive review is a legal mechanism expressly provided by the Constitution and is intended to ensure the full compliance of structural and organic laws with constitutional norms before their entry into force.
This development naturally raised questions among foreign residents, particularly those who were expecting clarification confirming that the five-year naturalization period begins on the date of the initial residence permit application, not the date the card is issued.
Given this understandable concern, it is important to clarify:
what the preventive review mechanism entails;
why it exists only for special and exceptional circumstances;
what is provided by the Constitution Article 278(4) and;
why this step ultimately strengthens the reliability of the Portuguese legal system.
1. What happened?
According to publicly available information, the Socialist party filed a petition to the Constitutional Court for a preventive review. This petition concerns the Organic Law Amending the Nationality Law.
This is entirely legal and part of the democratic system of checks and balances based on the rule of law. It is also important to emphasize that this institutional development is occurring at a time when many long-awaited biometric interview appointments are finally being issued for Golden Visa applicants.
This demonstrates that, despite ongoing constitutional procedures, administrative progress continues. For thousands of investors and families who have been waiting for this, the recent wave of biometric notifications is an extremely positive sign that the system is developing in parallel.
2. What is preventive review and who can request it?
According to Article 278(4) of the Portuguese Constitution, preventive review is possible for organic laws, which includes the Citizenship Law.
The Constitution allows the following entities to request preventive review:
The President of the Republic;
The Prime Minister;
One-fifth of the members of Parliament.
Only the Socialist Party parliamentary group has more than one-fifth of the members, giving it the right to request a review—an extremely rare occurrence in parliamentary practice. The party had not previously stated that it would use this mechanism, but ultimately decided to do so.
After formally submitting the request, the President of the Republic cannot promulgate the law until the Constitutional Court has issued its decision.
3. What happens now? Timeline
After receiving a complete request, the Constitutional Court must analyze it and issue a decision within a maximum of 25 days.
During this period:
The President cannot promulgate the law;
Parliament cannot enforce it;
Approved amendments remain in force rather than being rejected.
4. Why this demonstrates a healthy and reliable legal system
While the request for preventive review may seem surprising, especially given how rarely it is invoked, its implementation demonstrates the strength of Portugal's constitutional system.
Rather than indicating a violation, this represents a normal and legitimate institutional dialogue between Parliament, the President, and the Constitutional Court.
4.1. The system functions as it should
The Constitution establishes clear procedures to ensure thorough scrutiny of organic laws.
By activating this instrument:
Institutions comply with constitutional procedures;
The system of checks and balances operates effectively;
The entire process gains transparency and legal certainty.
For foreign residents, this confirms Portugal's commitment to the principles of predictability and the rule of law.
4.2. Future legislation will be strengthened by judicial confirmation
Recent comments from constitutional law professors indicate that many of the concerns raised during parliamentary debates are precisely the issues the Constitutional Court is expected to address through preventive review. This means that the upcoming decision will likely provide long-awaited clarity. Importantly, preventive review is not intended to block legislation, but to strengthen it.
Depending on the Court's findings:
if the law is confirmed not to violate the Constitution, it enters into force with additional force, having undergone full constitutional review;
if amendments are required, the law will return to Parliament, where all political forces will once again work to create a clear, consistent, and constitutionally compliant version that fully complies with the fundamental principles of the Portuguese democratic system.
Either option enhances legal stability for all residents relying on the Citizenship Law.
4.3. Even after constitutional approval, the President retains political discretion
Constitutional approval does not oblige the President to promulgate the law.
The President retains the right to a political veto—a separate mechanism within the constitutional balance of powers.
This demonstrates that the Portuguese system promotes meaningfulness and proportionality among all branches of government.
4.4. This aspect strengthens Portugal's image as a country with a rule of law
Even when legislative processes slow down, the fact that institutions strictly adhere to constitutional procedures strengthens Portugal's reputation as:
a mature democracy;
a predictable legal environment;
a safe country for long-term planning, including naturalization.
For residents and investors, institutional reliability is ultimately more valuable than speed. This preventive review—precisely because it is applied rarely and only in serious cases—demonstrates the independence and willingness of Portugal's democratic institutions to ensure that key structural laws fully comply with constitutional principles before they come into force.
More broadly, this aspect also reflects the stability of Portugal's legal system: while political debates continue in Parliament, administrative bodies continue to make progress, as demonstrated by the recent introduction of biometric appointments. Taken together, these developments demonstrate a system that combines democratic control and operational continuity—a crucial combination for those who rely on Portugal as a stable jurisdiction for residency, investment, and naturalization. Furthermore, in 2025, Portugal will offer Europe's most reliable Golden Visa residency program.
NATLAN will continue to closely monitor the Constitutional Court proceedings and provide timely practical updates, helping all applicants move forward with clarity and confidence in Portugal's long-term legal and investment framework.
If you are planning to obtain a residence permit, invest in a country's economy, or purchase foreign real estate, we invite you to a consultation. During a personal online meeting, we will thoroughly examine your questions and develop a step-by-step action plan for you.