What Is Changing: NISS Assigned in Real Time During AIMA Appointment
Starting in late July 2026, foreign nationals attending regularisation appointments at AIMA will automatically receive their Social Security Identification Number (NISS) during the appointment itself. This eliminates the separate Social Security counter visit that has been required for decades. Until now, the process worked like this: you attended your AIMA appointment, submitted your documents, had your biometric data collected, and received confirmation that your residence permit application was proceeding. But you did not leave the appointment with a NISS. You then had to separately visit a Social Security counter, request the NISS, and return later to collect it. Depending on Social Security wait times and appointment availability, this could take weeks or even months.
According to The Portugal News, the new measure "eliminates the need for individuals to subsequently visit a Social Security service counter to obtain the document" and is part of Portugal's Social Security digital transformation program that has been under development since 2025. The primary goal is to simplify administrative procedures, reduce bureaucracy, and alleviate the heavy pressure on in-person Social Security counters by enabling the NISS to be assigned in real time during the AIMA appointment.
In 2025, approximately 250,000 people visited Social Security counters solely to request the NISS — and then had to return later to collect it — thereby overburdening in-person services. The automatic NISS assignment will eliminate this step for everyone initiating regularisation through AIMA starting late July 2026. This is a concrete operational improvement that will save you time and reduce the number of bureaucratic appointments required to complete your residence permit process.
How the New Digital Integration Works
The new system creates a direct digital connection between AIMA's internal database and Portugal's Social Security system. When you attend your AIMA regularisation appointment, the AIMA staff member handling your case enters your identification details into AIMA's system — your name, date of birth, nationality, passport number, and Portuguese residence permit number (once it is issued). That data is transmitted in real time to Social Security's database, which automatically generates a NISS and assigns it to your record.
The NISS is then transmitted back to AIMA's system and displayed on the staff member's screen. The entire process takes seconds. The NISS can be printed on a document for you during the appointment, or you can access it later through the Social Security Direct portal (Segurança Social Direta) once your residence permit is issued. Some foreign nationals may also receive the NISS via email or SMS notification, depending on how AIMA and Social Security implement the final version of the system.
The key improvement is that you no longer need to physically visit a Social Security counter, wait in line, request the NISS, and return later to collect it. All of that is eliminated. Your NISS is assigned automatically as part of your AIMA regularisation appointment, and you leave the appointment with the number already issued. This is a genuine simplification of the process and removes one of the most time-consuming and frustrating steps in the residence permit application journey.
When Does This Start and Who Is Covered
AIMA's automatic NISS assignment is scheduled to begin in late July 2026. The exact start date has not been publicly confirmed as of mid-July 2026, but both AIMA and Portugal's Social Security system have announced that the digital integration is in the final testing phase and will be operational before the end of the month. Once the system goes live, all foreign nationals attending regularisation appointments at AIMA will be covered — regardless of which AIMA office you attend (Lisbon, Porto, Faro, or any other service point) and regardless of your residence permit category (work permit, D7 visa, family reunification, etc.).
The automatic NISS assignment applies primarily to initial regularisation applications — in other words, foreign nationals who are obtaining their first residence permit in Portugal and do not yet have a NISS. If you already have a NISS from a prior residence period in Portugal, you do not need a new one when you renew your residence permit. Your NISS remains valid for life, even if your residence permit expires or you leave Portugal and return later.
If you are a foreign national who previously lived in Portugal years ago, obtained a NISS at that time, and no longer remember your NISS number, the new digital integration between AIMA and Social Security may help AIMA staff retrieve your existing NISS during your appointment rather than issuing a duplicate. This is not officially confirmed but is a likely side benefit of the system integration.
What This Means for Your Regularisation Timeline
The automatic NISS assignment does not speed up the overall residence permit approval timeline — AIMA still needs to process your application, verify your documents, conduct background checks, and issue the physical residence card, which typically takes 3 to 6 months for straightforward cases and can take much longer for complex cases or if you are caught in the backlog. But it does eliminate one administrative step that could previously add weeks or months to your timeline after the residence permit was issued.
Under the old process, you could not work legally in Portugal or access certain public services until you had both your residence permit and your NISS. Even if your residence permit was approved quickly, you could still be delayed for weeks waiting for a Social Security appointment to request the NISS, and then waiting again to collect it. Now, your NISS is assigned during the same appointment where you submit your initial application or attend your biometric appointment, which means you are ready to work and access services as soon as your residence permit is issued — no additional waiting period for the NISS.
This is particularly important for foreign nationals on work-based residence permits, where your employer may require proof of your NISS before you can be added to the payroll or officially registered with Social Security as an employee. Previously, this could create a frustrating catch-22: your residence permit was approved, but you could not start working until you had the NISS, which could take weeks or months to obtain. The automatic NISS assignment eliminates this problem.
What If You Already Have a NISS From a Prior Visit
If you already have a NISS from a prior period of residence in Portugal, you do not need a new one, and the automatic NISS assignment does not apply to you. Your NISS remains valid for life and is linked to your Portuguese Tax Identification Number (NIF) and your identity in Portugal's Social Security database. When you renew your residence permit, AIMA does not issue a new NISS — your existing NISS continues to be valid.
However, if you no longer remember your NISS number, you can retrieve it by logging into the Social Security Direct portal (Segurança Social Direta) at seg-social.pt using your Chave Móvel Digital or Citizen Card. Your NISS is also printed on most official Social Security documents you have received in the past, such as contribution statements or benefit notifications. If you cannot retrieve your NISS through the online portal and do not have any old documents, you can contact Social Security's helpline at 300 502 502 or visit a Social Security counter to request a duplicate NISS certificate.
It is important to provide your existing NISS to your employer, bank, and any other institutions that require it. Do not request a new NISS if you already have one — having duplicate NISS numbers in the system can create administrative complications.
Does This Affect Residence Permit Renewals or Only Initial Applications
The automatic NISS assignment applies primarily to initial regularisation applications — foreign nationals who are obtaining their first residence permit in Portugal and do not yet have a NISS. If you are renewing your residence permit and you already have a NISS, you do not need a new one. The renewal process does not involve NISS issuance because your NISS is permanent and does not need to be renewed.
Most residence permit renewals in 2026 are processed through AIMA's online Renewal Portal (portal-renovacoes.aima.gov.pt), which does not require an in-person appointment at all for straightforward renewals. You upload your documents online, pay the renewal fee, and receive your renewed residence card by mail. The automatic NISS assignment is relevant only for people attending in-person AIMA appointments as part of their initial regularisation process.
Frequently Asked Questions
When does AIMA's automatic NISS assignment start?
AIMA's automatic NISS assignment is scheduled to begin in late July 2026. The exact start date has not been publicly confirmed as of mid-July 2026, but both AIMA and Portugal's Social Security system have announced that the digital integration is in the final testing phase and will be operational before the end of the month. Once the system goes live, all foreign nationals attending regularisation appointments at AIMA will receive their NISS automatically during the appointment — no separate Social Security counter visit will be required. If you have an AIMA appointment scheduled for late July or August 2026, you can assume the new system will be in effect by the time your appointment takes place.
What is the NISS and why do I need it?
The NISS (Número de Identificação de Segurança Social) is your Social Security identification number in Portugal. You need it to work legally in Portugal, to access public healthcare (SNS), to pay Social Security contributions, and to receive Social Security benefits such as unemployment support, family allowances, or retirement pensions. Every foreign national who obtains a residence permit in Portugal must have a NISS. Until now, the NISS was not issued during your AIMA appointment — you had to visit a Social Security counter separately after your AIMA appointment, request the NISS, and return later to collect it. This created an extra administrative step that could take weeks or even months depending on Social Security wait times. Starting late July 2026, the NISS will be assigned automatically during your AIMA appointment, and you will leave the appointment with your NISS already issued.
Does this apply to residence permit renewals or only initial applications?
The automatic NISS assignment applies primarily to initial regularisation applications — in other words, foreign nationals who are obtaining their first residence permit in Portugal and do not yet have a NISS. If you already have a NISS from a prior residence period in Portugal, you do not need a new one when you renew your residence permit. Your NISS remains valid for life, even if your residence permit expires or you leave Portugal and return later. However, if you are a foreign national who previously lived in Portugal years ago, obtained a NISS at that time, and no longer remember your NISS number, the new digital integration between AIMA and Social Security may help AIMA staff retrieve your existing NISS during your appointment rather than issuing a duplicate. This is not officially confirmed but is a likely side benefit of the system integration.
How does the new digital integration work?
The new system creates a direct digital connection between AIMA's internal database and Portugal's Social Security system. When you attend your AIMA regularisation appointment, the AIMA staff member handling your case enters your identification details (name, date of birth, nationality, passport number, Portuguese residence permit number once issued) into AIMA's system. That data is transmitted in real time to Social Security's database, which automatically generates a NISS and assigns it to your record. The NISS is then transmitted back to AIMA's system and displayed on the staff member's screen. The entire process takes seconds. The NISS can be printed on a document for you during the appointment, or you can access it later through the Social Security Direct portal (Segurança Social Direta) once your residence permit is issued. The key improvement is that you no longer need to physically visit a Social Security counter, wait in line, request the NISS, and return later to collect it — all of which could take weeks or months depending on Social Security appointment availability and processing times.
What if I already scheduled a Social Security appointment to get my NISS before this change was announced?
If your Social Security appointment is scheduled for late July 2026 or later, and you have an AIMA regularisation appointment scheduled before that Social Security appointment, you can cancel the Social Security appointment — you will no longer need it because your NISS will be assigned automatically during your AIMA appointment. However, if your AIMA appointment is scheduled for early or mid-July 2026 (before the new system goes live), you may still need the Social Security appointment as a backup. The safest approach is to keep the Social Security appointment until you attend your AIMA appointment and confirm that the automatic NISS assignment is functioning. If you receive your NISS during the AIMA appointment, you can cancel the Social Security appointment at that time. If the AIMA staff inform you that the automatic NISS system is not yet operational or encounters a technical issue, you will still have your Social Security appointment as a fallback.