NIS2 Country Guide

NIS2 Portugal: the RJC, MyCiber Registration & Coimas

Portugal transposed the NIS2 Directive through the Regime Jurídico da Cibersegurança (RJC), approved by Decreto-Lei n.º 125/2025 and in force since 3 April 2026. The implementing Regulamento n.º 756/2026 was published on 22 June 2026 and took effect the next day, opening the MyCiber platform, where registration, qualification and incident reporting now happen. The registration deadline for entities already trading on 3 April 2026 passed on 15 September 2026. CNCS says the duty does not lapse with the deadline, so an entity that missed it should register now.

In force: 3 April 2026 Register now: deadline was 15 Sept Law: Decreto-Lei n.º 125/2025 (RJC) Authorities: CNCS · ANACOM · GNS Last updated: 16 October 2026

Introduction: NIS2 Directive & the Portuguese context

Portugal previously had a fragmented cybersecurity framework, with obligations scattered across sectoral laws and soft-law guidance from the National Cybersecurity Centre (CNCS). The original NIS Directive (NIS1) was only partially reflected in national legislation, covering a limited set of operators of essential services.

The Regime Jurídico da Cibersegurança (RJC), approved by Decreto-Lei n.º 125/2025, replaced that framework outright. It transposes Directive (EU) 2022/2555 (NIS2) into Portuguese law, repeals the 2018 cyberspace security regime, and has applied since 3 April 2026.

Two things happened after the law took effect that most English-language summaries have not caught up with. The CNCS Regulamento n.º 756/2026 was published on 22 June 2026 and entered into force the next day, opening the MyCiber platform and starting the clock on the duty to register, which ran until 15 September 2026. Publication also started the 24-month period after which the substantive security measures take effect, which means the headline obligations are dated but not yet enforceable. Both points are set out below.

Quick link: New to NIS2? Start with our general guides “What is NIS2?” and “NIS vs NIS2”.

What you must do in Portugal

Five duties, in the order the RJC imposes them. The first is overdue for any entity that has not yet registered. The next three turn on your own qualification, and the last runs from a fixed date in 2028.

  1. Register on MyCiber. Entities already trading when the RJC took effect have 60 dias úteis (working days) from the platform being made available. MyCiber opened when the Regulamento entered into force on 23 June 2026, which closed that window on 15 September 2026. The duty did not lapse with the date: an entity that missed it is in breach and should register now. Entities that started trading after 3 April 2026 have 30 dias úteis from their own start of activity. This is a self-identification duty, not a wait-to-be-contacted one.
  2. Answer the draft, then receive your qualification. CNCS, ANACOM or GNS first sends a draft decision, the Projeto de Ato de Qualificação, saying whether you are in scope and, if so, whether you are an essential entity, important entity or relevant public entity. You have 10 dias úteis to comment on it. The final Ato de Qualificação follows within 30 dias úteis of the qualification decision. The rest of your deadlines run from that final notice, not from registration.
  3. Appoint a Responsável de Cibersegurança and a Ponto de Contacto Permanente within 20 dias úteis of that qualification notice. The cybersecurity officer must sit on the management body or report directly to it. The contact point must be available 24 hours a day, seven days a week, during activation periods that the authority opens and closes.
  4. Submit your list of internet-facing assets (Lista de Ativos) by 31 January of the year after your qualification notice, or within six months of that notice, whichever falls first. For an entity notified in 2026 that means 31 January 2027 at the latest.
  5. Implement the minimum security measures and, for essential entities, file the annual report by 22 June 2028 — 24 months from the Regulamento's publication.
The fine waiver is the deadline nobody mentions. Under Article 65 of the RJC, any essential, important or relevant public entity may apply, with reasons, to have the Article 61 and Article 62 fines waived on the ground that it had no internal procedure for adapting to the new regime. That option is open for 12 months from entry into force — until 3 April 2027, and then it is gone.

NIS2 implementation in Portugal

Portugal transposed NIS2 through Decreto-Lei n.º 125/2025, de 4 de dezembro, published in the Diário da República, 1.ª série, n.º 234. It approves the Regime Jurídico da Cibersegurança (RJC) as an annex and implements Directive (EU) 2022/2555 into national law.

Article 11 sets entry into force at 120 days after publication, which fell on 3 April 2026. Article 10(2) then defers a specific list of provisions — the core security measures, the essential-entity annual report, and the penalties attached to them — until 24 months after the implementing regulation is published. That regulation, Regulamento n.º 756/2026, was published on 22 June 2026, so those obligations bite on 22 June 2028. CNCS has confirmed this reading in writing.

The RJC rests on Lei n.º 59/2025, de 22 de outubro, which authorised the Government to transpose NIS2 by decree-law. Article 9 of the decree-law repeals the previous regime: Lei n.º 46/2018 (the cyberspace security regime), Decreto-Lei n.º 65/2021 (its implementing regulation) and Article 2.º-A of Decreto-Lei n.º 3/2012 outright, and Articles 59 to 65 of the Electronic Communications Law (Lei n.º 16/2022) on a delay. Under Article 10(1), that last repeal takes effect only once ANACOM has replaced or revoked its own network-security regulations, which stay in force meanwhile where they are compatible with the RJC (Article 8(3)). If your compliance programme still cites Lei 46/2018, it is citing a repealed law.

Status

Transposed and in force. The RJC has applied since 3 April 2026 and the implementing Regulamento since 23 June 2026. Portugal reached this point under EU infringement pressure, having missed the October 2024 deadline, and it was not among the four member states the Commission referred to the Court of Justice in July 2026.

What the Regulamento adds

Regulamento n.º 756/2026 sets the operating rules for MyCiber and carries four annexes: the Quadro Nacional de Referência for cybersecurity, the Matriz de Risco methodology, the minimum security measures for essential and important entities, and a separate set of measures for relevant public entities. It followed a public consultation that ran from 10 March to 22 April 2026.

Supervisory model

One national authority — CNCS — plus two sectoral authorities, ANACOM for electronic communications and postal services and GNS for electronic trust services. Three further bodies supervise digital operational resilience in finance only. The full designation is in the authorities table below.

Am I in scope in Portugal?

Portugal applies the Directive's sector and size tests, and then adds a third category that has no equivalent in the Directive at all.

Category Test
Essential entities Large organisations, above the medium-enterprise thresholds, in the high-criticality sectors (Annex I) — energy, transport, banking, financial market infrastructure, health, drinking and waste water, digital infrastructure, ICT service management, space. Also essential under Article 6(1): qualified trust service providers, TLD name registries and DNS service providers of any size; medium-sized public electronic communications providers; critical entities under Directive (EU) 2022/2557; public administration bodies that run IT infrastructure or are particularly digitally integrated; and the public body responsible for educational assessment.
Important entities Medium-sized organisations in the Annex I sectors, and medium and large organisations in the other critical sectors (Annex II) — postal and courier services, waste management, chemicals, food, manufacturing, digital providers, research.
Entidades públicas relevantes — Grupo A Direct state administration and autonomous-region equivalents with 250 or more staff; indirect and autonomous administration above 250; public business entities above the Recommendation 2003/361/EC thresholds; independent administrative entities; and named bodies including the Provedoria da Justiça, the Conselho Económico e Social and the technical services of the Presidency, the Assembleia da República and the courts.
Entidades públicas relevantes — Grupo B The same categories with 75 to 249 staff, plus public business entities qualifying as medium enterprises.
Regardless of size DNS service providers, TLD name registries, domain-name registration service providers, trust service providers, and providers of public electronic communications networks or services (Article 3(2)(a)), plus entities identified as critical entities under Directive (EU) 2022/2557 (Article 3(5)).
Higher education institutions Brought within scope expressly by Article 3(6) of the RJC.
If more than one qualification fits, the most demanding one applies. Article 9 of the RJC sets an explicit order of precedence, headed by essential entities. You do not get to pick the lighter regime.

CNCS publishes a non-binding Simulador that lets an organisation test whether the RJC applies to it before registering. It is a guide, not a determination — the qualification that counts is the one the competent authority notifies to you — and it does not test the sole-provider, public-safety, systemic-risk and national-importance criteria in Article 3(2)(b) to (e), or critical-entity status under Article 3(5).

NIS2 Portugal: what you need to know about compliance

The RJC mirrors the NIS2 architecture of essential entities and important entities and adds entidades públicas relevantes. Scope is set out in the section above; what follows is what being in scope actually obliges you to do.

Governance duties

  • Appoint a Responsável de Cibersegurança who sits on the management body or reports directly to it, and notify the competent authority within 20 dias úteis of qualification.
  • Nominate the team staffing the Ponto de Contacto Permanente, with primary and alternative contact details, on the same deadline.
  • Notify any replacement of the cybersecurity officer without undue delay.
  • Management bodies approve the cybersecurity measures, oversee implementation and receive training.

Core obligations

  • Implement the minimum security measures in Annex III to the Regulamento, keyed to the Quadro Nacional de Referência and to the conformity level assigned to you. Relevant public entities follow Annex IV instead.
  • Run the Matriz de Risco methodology in Annex II and manage the residual risk you accept.
  • Maintain and submit the Lista de Ativos, the list of your internet-facing assets, by 31 January of the year after your qualification notice or six months after it, whichever comes first. It is classified information.
  • Notify significant incidents through MyCiber on the four-stage clock set out below.
  • Manage supply-chain cybersecurity risk, including contractual security and incident-notification obligations for critical suppliers.
  • Essential entities file an annual report to CNCS from 22 June 2028.

When the measures actually bite

Article 10(2) of the decree-law defers Articles 27(1) and (2), 28 to 30 and 33 — the substantive security-measure and annual-report duties — and the corresponding penalties in Article 61(1)(b), (c) and (f), until 24 months after the Regulamento was published. That is 22 June 2028. Registration, officer appointment, the contact point and incident reporting are not deferred. Registration is owed now; CNCS says the rest apply to your entity from the moment you receive your final Ato de Qualificação.

Do not read the 2028 date as a reprieve. The measures in Annex III are the ones that take real programme time, and the conformity level you are held to depends on the qualification you receive. Registering late does not move the date either: CNCS has said the 24-month period runs regardless of when you registered. CNCS runs a national NIS2 roadmap, awareness programme and training sessions across the mainland and the autonomous regions.

Competent authorities & CSIRT

Article 15 of the RJC sets out the institutional framework precisely, and it is narrower than most summaries suggest. There are three competent cybersecurity authorities — CNCS, ANACOM and GNS — and three further bodies whose remit is confined to digital operational resilience in the financial sector.

Role Authority Notes
National cybersecurity authority, EU single point of contact, national cybersecurity certification authority Centro Nacional de Cibersegurança (CNCS) Leads the RJC, qualifies entities, operates MyCiber, sets technical instructions and represents Portugal in EU NIS2 cooperation. Also part of the national incident response team.
National CSIRT CERT.PT, within CNCS Receives incident notifications, issues alerts and guidance, coordinates technical response and runs coordinated vulnerability disclosure.
Sectoral cybersecurity authority — electronic communications and postal services ANACOM Qualifies and supervises entities in its sector, and receives their incident notifications.
Sectoral cybersecurity authority — electronic trust services Gabinete Nacional de Segurança (GNS) Competent authority for qualified and non-qualified trust service providers in the internal market.
Special authorities — financial sector digital operational resilience only Banco de Portugal · CMVM · ASF Their competence under the RJC is limited to digital operational resilience in the financial sector. They are not general sectoral cybersecurity authorities.
Advisory and crisis bodies Conselho Superior de Segurança do Ciberespaço · Secretário-Geral do Sistema de Segurança Interna The CSSC advises the Prime Minister on cybersecurity policy. The Secretary-General is the national authority for managing large-scale cyber crises and incidents.
High-risk supplier assessments Comissão de Avaliação de Segurança do Ciberespaço Sits alongside the CSSC, chaired by the director-general of the GNS, and assesses ICT equipment, components and services from suppliers that may be high-risk. On its proposal the minister responsible for cybersecurity can restrict or exclude them (Article 18).

Registration: who, where and by when

MyCiber — myciber.gov.pt — is the electronic platform required by Article 8(1) of the RJC. It is where you identify yourself, receive your qualification, nominate your cybersecurity officer and contact point, and file every incident notification. Its operating rules are set by Regulamento n.º 756/2026.

Who Deadline Counted from
Entities already trading on 3 April 2026 60 dias úteis The platform being made available (23 June 2026)
Entities starting activity after 3 April 2026 30 dias úteis The start of activity
Domain-name registration service providers 30 days The start of activity (Article 8(6))
Comment on the draft qualification (Projeto de Ato de Qualificação) 10 dias úteis The draft being sent (Regulamento Article 9(2))
CNCS, ANACOM or GNS notifies your final qualification 30 dias úteis The date of qualification (Article 8(5))
Cybersecurity officer and permanent contact point 20 dias úteis The qualification notification
These are working days, and that changes the date by about a month. The statute writes "60 dias" at Article 8(1), which several English-language summaries have read as calendar days — giving a deadline around 21 August 2026. The CNCS Calendário de obrigações states 60 dias úteis, consistent with the Portuguese Código do Procedimento Administrativo, which counts procedural deadlines in working days, and MyCiber's own FAQ states the rule as 60 dias úteis in terms. The platform became available when Regulamento n.º 756/2026 entered into force on 23 June 2026 under its Article 34. Counting 60 working days from there, with no feriado nacional falling on a working day in between, closed the window on Tuesday 15 September 2026, the date CNCS itself gave in its notice of 9 September 2026.
The deadline has passed. The duty has not. CNCS estimates that more than 5,000 entities are in scope, and four days before the deadline it said registrations stood at roughly half of that figure. It has also said that the obligation to register does not lapse with the deadline, that there is no separate regularisation procedure, and that it will identify unregistered entities by cross-checking with the Instituto dos Registos e do Notariado. Article 87 of the RJC gives CNCS free access to national databases and registers, in particular for qualifying entities. Failing to register is a contraordenação grave under Article 62(1)(a). Two provisions bear on an entity that registers late: unless the breach was intentional, proceedings can only be opened after the authority has warned you and given you a reasonable period to comply (Article 66(5)), and until 3 April 2027 you can still apply for the Article 61 and 62 fines to be waived (Article 65). Neither is a reason to wait.

Who may register

The entity's legal representative, or someone expressly given power to bind it. Authentication is by Chave Móvel Digital or Cartão de Cidadão, and the card route needs a reader. Unless the representative is listed in the Sistema de Certificação de Atributos Profissionais, have documentary proof of representation powers ready before you start.

What happens next

You self-declare your sector, entity type, size and establishment, and MyCiber opens a provisional record. CNCS, ANACOM or GNS then sends a draft qualification decision and you have 10 dias úteis to respond. The final Ato de Qualificação makes the record definitive, states your conformity level and the measures that apply to you, and starts your remaining deadlines. An entity found to be out of scope is told so, and its provisional record is closed within 90 days.

Portuguese What it means
Regime Jurídico da Cibersegurança (RJC)The cybersecurity legal regime — the NIS2 transposition itself
dias úteisWorking days, excluding weekends and public holidays
coimaAdministrative fine
contraordenaçãoAdministrative offence — graded muito grave, grave or leve
Responsável de CibersegurançaThe cybersecurity officer
Ponto de Contacto PermanenteThe always-reachable contact point
entidades públicas relevantesRelevant public entities, Groups A and B
Lista de AtivosThe list of internet-facing assets, first due by 31 January 2027 for entities notified in 2026
Projeto de Ato de QualificaçãoThe draft qualification decision you have 10 dias úteis to answer
Ato de QualificaçãoThe final qualification decision, from which your deadlines run

MyCiber has an English interface, as Article 5(1) of the Regulamento requires. The RJC and the Regulamento have no official English version, so the Portuguese text is the one that governs.

Incident reporting in Portugal

Portugal does not use the Directive's familiar clock. Article 41 requires three submissions for every significant incident — an initial notification, a notification that the significant impact has ended, and a final report — with a 72-hour update where needed, and adds a carve-out for incidents you resolve quickly.

Stage Deadline Provision
Initial notification Without undue delay and within 24 hours of concluding that a significant incident exists or may come to exist Article 42(1)
Update to the initial notification Where necessary, within 72 hours of verifying the incident, with an initial severity and impact assessment Article 42(3)
Notification that the significant impact has ended Without undue delay and within 24 hours of the impact ending Article 43(1)
Final report 30 dias úteis from the end-of-impact notification Article 44(1)
Interim report Weekly, at the authority's request, if the incident is still running when the final report falls due Article 44(3)
The two-hour carve-out. Article 41(2): if the incident is resolved within two hours of detection, you owe only the end-of-impact notification — no initial notification, no final report. This is a genuine simplification and it appears in no other member state's transposition we have reviewed.

All notifications go through MyCiber (Article 40(6)). Notifying does not by itself create additional liability for the notifying entity (Article 40(2)). Whether an incident is significant turns on the number of users affected, the total user base, duration, severity of the disruption and the scale of economic and social impact (Article 40(3)), read together with any CNCS technical instruction and the Commission's implementing acts. As at 16 October 2026 CNCS has issued one technical instruction, n.º 01/2026, on coordinated vulnerability disclosure. None yet sets incident thresholds or the taxonomy, so for the entity types covered by Implementing Regulation (EU) 2024/2690, that Regulation's thresholds are the working test.

An RJC notification does not discharge your other duties. Article 40(5) preserves separate obligations to the Ministério Público, the Polícia Judiciária, the CNPD (data protection), the Entidade Fiscalizadora do Segredo de Estado and the GNS. Article 40(7) allows those notifications to be made simultaneously through MyCiber under a protocol between the authorities — so plan one process, not five.

NIS2 timeline & key dates (Portugal)

17 October 2024 — EU deadline for NIS2 transposition passes; Portugal does not yet have implementing legislation in place.
28 November 2024 — European Commission launches infringement proceedings and sends letter of formal notice for failure to transpose NIS2.
7 May 2025 — Commission issues reasoned opinion to Portugal for continued failure to notify full transposition.
22 October 2025 — Law 59/2025 published, authorising the Government to transpose NIS2 and approve the RJC by decree-law.
4 December 2025 — Decree-Law 125/2025 (RJC) published in the Official Journal, formally transposing Directive (EU) 2022/2555 (NIS2).
3 April 2026 — RJC enters into force, 120 days after publication. Lei 46/2018 and Decreto-Lei 65/2021 are repealed.
22 June 2026 — Regulamento n.º 756/2026 published; the 24-month clock for the security measures starts running from this date.
23 June 2026 — Regulamento enters into force and MyCiber becomes available, starting the 60 dias úteis registration window.
July 2026 — the Commission refers Ireland, Spain, France and the Netherlands to the Court of Justice for failing to transpose NIS2. Portugal, having transposed, is not among them.
15 September 2026 — the 60 dias úteis window for entities already trading on 3 April 2026 to register on MyCiber closes. Four days earlier CNCS put registrations at roughly half of the 5,000+ entities it estimates in scope. The duty to register continues after the date.
30 September 2026 — the 180-day period during which decisions of the former Comissão de Avaliação de Segurança stayed in effect ends (decree-law Article 8). The Government said on 8 October 2026 that the new assessment was completed in time and that it had renewed the restrictions on high-risk 5G suppliers.
31 January 2027 — latest date for the first Lista de Ativos from entities notified of their qualification in 2026, or six months after the notice if that falls first.
3 April 2027 — the Article 65 window to apply for a waiver of Article 61 and 62 fines closes, 12 months after entry into force.
22 June 2028 — the minimum security measures and the essential-entity annual report take effect, 24 months after the Regulamento was published, along with the penalties attached to them.

Sector-specific notes for Portugal

  • Energy: electricity, gas and other critical energy operators are treated as essential entities with strict incident-reporting and resilience obligations.
  • Digital infrastructure & telecom: electronic communications networks, data centres, cloud providers and key internet infrastructure are a central focus, with ANACOM playing a major supervisory role for communications and postal services. Operators also carry the high-risk supplier regime: restrictions first set for 5G networks in 2023 were renewed after a fresh assessment under the RJC, as the Government reported on 8 October 2026. The assessment itself is classified.
  • Public administration: central government bodies and other relevant public entities (Groups A and B) are explicitly covered to protect critical public services and state digital infrastructure, and that reaches autonomous administration, which includes local government.
  • Higher education: universities and polytechnics are brought within scope expressly by Article 3(6) of the RJC.
  • Finance & payments: banks and financial market infrastructures are in scope under both the RJC and DORA. Banco de Portugal, the CMVM and the ASF are named in Article 15 as special authorities for digital operational resilience only — for everything else in the RJC, the competent authority is CNCS. Financial entities still appoint a cybersecurity officer and a contact point and notify incidents under the RJC, while DORA major-incident reporting goes to the financial authorities (Regulamento Article 10(2) and (3)).
  • Health & critical services: hospitals and critical healthcare providers face substantial governance and technical uplift. There is no health-sector cybersecurity authority; they answer to CNCS.
  • Electronic trust services: qualified and non-qualified trust service providers are supervised by the GNS, not CNCS — the one sectoral split that is easy to miss.

How Portugal differs from the NIS2 Directive

Six places where the RJC goes beyond, or simply departs from, the Directive text. If you are running a multi-country programme built on the Directive, these are the deltas that will catch you.

  1. A whole third category of entity. Entidades públicas relevantes have no equivalent in the Directive. Public administration bodies are sorted on headcount — 250 or more staff for Group A, 75 to 249 for Group B — with no turnover test, and the net reaches regional, indirect and autonomous administration, which includes local government. The Directive makes local public administration optional; Portugal has taken it in.
  2. A different reporting chain. The Directive runs early warning, incident notification and final report. Portugal makes the 72-hour step an update where necessary, inserts a notification that the significant impact has ended, due within 24 hours of the impact stopping, and runs the final report from that point rather than from the incident. It also expresses the final-report deadline in working days rather than as one month.
  3. Statutory minimum fines. The Directive sets ceilings only. Portugal sets a floor on every tier — from €2,000 for an essential entity's most serious breach down to €250 for a minor one by an individual. For a small in-scope entity the floor, not the ceiling, is the number that matters.
  4. A time-limited amnesty. Article 65 lets any in-scope entity apply to have its fines waived on the ground that it had no internal adaptation procedure — but only until 3 April 2027. Nothing in the Directive requires this and few member states offer it.
  5. The obligations are dated but deferred. Article 10(2) suspends the substantive security measures, the annual report and their penalties until 22 June 2028. Registration, qualification, officer appointment and incident reporting are live now. Portugal has separated the two in a way the Directive does not.
  6. A statutory high-risk supplier mechanism. Article 18 lets the minister responsible for cybersecurity restrict or exclude ICT equipment, components or services from suppliers judged high-risk, on a proposal from the Comissão de Avaliação de Segurança do Ciberespaço, in public and private networks alike. Breaching such a decision is a contraordenação muito grave, and that penalty is not deferred to 2028.
Where Portugal does not deviate: the private-sector lists in Annexes I and II, the size thresholds for private entities, the risk-management measures in Article 21 of the Directive and the main-establishment rule are transposed without national embellishment. If your programme already meets the Directive on those points, it meets the RJC on them too.

Penalties, coimas and how they are graded

The RJC does not simply restate the Directive's ceilings. Articles 61 to 63 grade every breach as muito grave, grave or leve, and set both a minimum and a maximum for each, separately for legal persons and for individuals. The tables below are the actual statutory ranges.

Contraordenações muito graves — Article 61

Covers failure to adopt the required cybersecurity measures, the annual report, the cybersecurity officer and contact point duties, measures set by CNCS, and the incident notification duties in Articles 40 to 44.

EntityLegal personIndividual
Essential entity €2,000 – €10,000,000, or 2% of worldwide annual turnover in the previous financial year, whichever is higher €350 – €200,000
Important entity €1,250 – €7,000,000, or a maximum not lower than 1.4% of worldwide annual turnover, whichever is higher €350 – €200,000
Relevant public entity, Group A €16,000 – €4,000,000 €500 – €16,000
Relevant public entity, Group B €8,000 – €350,000 €500 – €16,000

Contraordenações graves — Article 62

Covers failure to identify yourself under Article 8 or to keep your registration data complete and current under Article 35, breaches of the binding orders, warnings and instructions of the competent authority, violation of a suspension, and failure to comply with an immediate execution measure.

EntityLegal personIndividual
Essential entity €1,250 – €5,000,000, or 1% of worldwide annual turnover, whichever is higher €250 – €125,000
Important entity €875 – €3,500,000, or a maximum not lower than 0.7% of worldwide annual turnover €250 – €125,000
Relevant public entity, Group A €10,000 – €2,500,000 €375 – €10,000
Relevant public entity, Group B €5,000 – €225,000 €375 – €10,000

Contraordenações leves — Article 63

Confined to cybersecurity certification: using an invalid, expired or revoked certification mark, implying a certification that does not exist, withholding or falsifying information relevant to a certification process, or ignoring a request from the Comissão de Avaliação de Segurança do Ciberespaço.

  • Legal person: €875 – €45,000
  • Individual: €250 – €3,750
Four things that change the number. Under Article 64, a negligent breach is punishable with both the minimum and the maximum halved. Under Article 66 the authority sets the actual amount within the range, and under Article 66(5), unless the breach was intentional, it must first warn you and give you a reasonable period to comply before it can open proceedings at all. Article 68 adds sanções compulsórias on top of the fine, set at €500 a day for a legal person and €100 a day for an individual, which may rise for each further day of non-compliance, for no more than 30 days.
The fine is not the only sanction. Where the gravity of the breach and the offender's culpability justify it, Article 67 lets the authority add publication of the decision in the Diário da República and a newspaper at your expense, exclusion from public procurement, a training or security plan to be carried out within six months, suspension of the service, and a temporary ban on members of the management body exercising their functions.
The waiver, while it lasts. Article 65 allows any essential, important or relevant public entity to apply, with reasons, for the Article 61 and 62 fines to be waived on the ground that it had no internal procedure for adapting to the new regime. The window runs 12 months from entry into force and closes on 3 April 2027.

How to prepare for NIS2 in Portugal

  1. If you have not registered, do it now: the 15 September deadline has passed and the duty has not, and an entity that registers before CNCS finds it through the register cross-check is in a better position than one it finds. Registration is a self-declaration you can edit while it is pending. Sort out the Chave Móvel Digital or Cartão de Cidadão access and the proof of representation powers first.
  2. Watch for your draft qualification: the Projeto de Ato de Qualificação arrives in MyCiber and at the email address you registered, and your 10 dias úteis to comment start when it is sent.
  3. Run a gap assessment against Annex III: the Quadro Nacional de Referência and the minimum measures in the Regulamento are the standard you will be held to, keyed to your conformity level. This is the work that needs the full run-up to June 2028.
  4. Build the asset list now: the Lista de Ativos of internet-facing assets is due by 31 January of the year after your qualification notice, or six months after it if that is sooner, and it is drawn from the asset inventory that everything else depends on.
  5. Design one incident process, not five: the four-stage RJC clock has to coexist with GDPR notification to the CNPD and any criminal reporting. Article 40(7) allows simultaneous notification through MyCiber — use it.
  6. Manage supply-chain risk: review contracts with key ICT and service providers, adding explicit cybersecurity, audit and incident-notification clauses.
  7. Align with recognised frameworks: build or refine your ISMS using ISO/IEC 27001, NIST CSF or similar to structure your NIS2/RJC compliance programme.
  8. Engage leadership: brief the board and senior management on their new responsibilities and ensure cybersecurity is embedded in overall risk and business strategy.

Operating in more than one EU country?

If you are a DNS service provider, TLD name registry, cloud computing, data centre or content delivery network provider, a managed service or managed security service provider, or an online marketplace, search engine or social networking platform, you answer to the regulator where your main establishment sits — not to all 27. For most of those categories that means the member state where your cybersecurity risk-management decisions are predominantly taken. Registering with CNCS does not, by itself, settle the question.

For those same entity types, Implementing Regulation (EU) 2024/2690 sets the technical and methodological requirements directly. It is a regulation, not a directive, so it is not transposed and reads identically in Portugal, Spain and everywhere else. Where it applies, it — not the national annex — is the specification to build against.

Two national deltas worth checking if Portugal is one of several markets for you: the 75-employee public-sector floor has no counterpart elsewhere, and the 24-hour end-of-impact notification means a group-wide incident runbook written to the Directive's three-stage clock will be incomplete here. Compare with Spain, Italy, Germany and Belgium.

Official links & resources

FAQ: NIS2 in Portugal

Has Portugal fully transposed NIS2?
Yes. Decreto-Lei n.º 125/2025 approved the Regime Jurídico da Cibersegurança and has been in force since 3 April 2026. The implementing Regulamento n.º 756/2026 followed on 22 June 2026. Portugal reached this point after missing the October 2024 deadline and facing EU infringement proceedings, and it was not among the member states the Commission referred to the Court of Justice in July 2026.
Who is the main NIS2 authority in Portugal?
The Centro Nacional de Cibersegurança (CNCS) is the national cybersecurity authority, the EU single point of contact and the national certification authority, with CERT.PT as the national CSIRT. Article 15 of the RJC names only two sectoral authorities alongside it — ANACOM for electronic communications and postal services, and the GNS for electronic trust services.
We missed the MyCiber registration deadline. What now?
Register now. Entities already trading on 3 April 2026 had 60 dias úteis — working days — from the platform being made available, which closed the window on 15 September 2026. CNCS has said the duty does not lapse, that there is no extension and no separate regularisation procedure, and that it will find unregistered entities by cross-checking with the Instituto dos Registos e do Notariado. Failing to register is a contraordenação grave, but unless the failure was intentional the authority must warn you and give you time to comply before opening proceedings (Article 66(5)). If you started activity after 3 April 2026, you have 30 dias úteis from your own start of activity.
How many entities are in scope in Portugal?
CNCS estimates more than 5,000. Four days before the 15 September deadline it said registrations on MyCiber stood at roughly half of that figure. Higher figures circulate in commentary without a source.
Do we need a specific certification like ISO 27001?
The RJC does not impose one by default, but Article 34 lets CNCS require certification — national, European or international — including schemes built on the Portuguese technical specification DNP TS 4577-1 and the QNRCS. Alignment with ISO/IEC 27001 remains an efficient way to structure and evidence compliance with NIS2 obligations in Portugal.
What are the actual fines?
For a very serious breach by an essential entity, €2,000 to €10 million or 2% of worldwide turnover, whichever is higher; for an important entity, €1,250 to €7 million or 1.4%. Individuals face €350 to €200,000. Relevant public entities have their own scales. Unlike the Directive, which sets ceilings only, every Portuguese tier has a statutory minimum, and a negligent breach halves both ends of the range.
Are the security measures enforceable yet?
Not until 22 June 2028. Article 10(2) of the decree-law defers the core security measures, the essential-entity annual report and the penalties attached to them until 24 months after the Regulamento was published. Registering late does not move that date: CNCS has said the 24-month period runs regardless of when you registered. Registration is owed now; appointing your cybersecurity officer and contact point and reporting incidents apply from your final qualification notice.

Sources & verification

Every date, figure and fine range on this page was taken from the Portuguese gazette text, from CNCS directly, or from statements CNCS and the Government gave to the Portuguese press, which are named below. Law-firm summaries and NIS2 trackers were used to decide what to check, never as authority.

SourceUsed forChecked
Decreto-Lei n.º 125/2025, DR 1.ª série n.º 234, 4 December 2025 — official gazette PDF Decree-law: entry into force (Article 11), repeals (Article 9), deferrals (Article 10), transitional rule for the former Comissão de Avaliação de Segurança (Article 8). RJC: scope (Articles 3, 6, 7, 9), qualification and registration (Articles 8, 35), authorities (Articles 15, 18), officer and contact point (Articles 31, 32), certification (Article 34), reporting (Articles 40–44), penalties (Articles 61–68), supervision fee (Article 82), access to national registers (Article 87) 16 October 2026
CNCS — Regulamento do Regime Jurídico da Cibersegurança Regulamento n.º 756/2026, publication 22 June 2026, entry into force 23 June 2026 under its Article 34, the English-language platform (Article 5), self-identification and qualification (Articles 8 to 10), the list of internet-facing assets (Article 32), the four annexes, the consultation period, and the start of the 24-month clock 16 October 2026
CNCS — MyCiber, including its FAQ and the Calendário de obrigações The 60 and 30 dias úteis registration deadlines stated in terms, the draft and final qualification acts, the 30 dias úteis qualification notice, the 20 dias úteis officer and contact-point deadline, the asset list, the registration credentials, and the Simulador's limits 16 October 2026
CNCS — notice of 9 September 2026 and the Instruções Técnicas page The 15 September 2026 deadline in CNCS's own words; Instrução Técnica n.º 01/2026 as the only technical instruction issued 16 October 2026
CNCS statement to IT Security, 11 September 2026 More than 5,000 entities estimated in scope, registrations at roughly half, no extension or regularisation procedure, the IRN cross-check, and the 24-month period running regardless of registration date 16 October 2026
ECO and Jornal Económico, 8 October 2026 The new security assessment completed within the 180 days to 30 September 2026, its classified status, and the renewal of the restrictions on high-risk 5G suppliers 16 October 2026
European Commission — NIS2 implementation in Portugal Infringement timeline: formal notice 28 November 2024, reasoned opinion 7 May 2025; press release IP/26/1499 for the July 2026 referrals, which do not include Portugal 16 October 2026

What this page deliberately does not state

  • Any count of entities in scope other than CNCS's own. CNCS estimates more than 5,000. A figure of around 9,000 circulates widely and is unsourced, and we would rather print nothing than a number that gets quoted back to us.
  • A supervision fee amount. Article 82 allows a supervision fee on essential and important entities, to be set by a portaria of the ministers for finance and cybersecurity. We have found no such portaria as at the date above, so we print no amount.
  • Any sectoral cybersecurity authority beyond ANACOM and the GNS. Third-party guides refer loosely to “various regulators” for energy, finance, health and transport, and some list ERSE, DGEG, IMT, ANAC, AMT and DGRM. Article 15 of the RJC names none of them. Banco de Portugal, the CMVM and the ASF appear only as special authorities for digital operational resilience in the financial sector.
  • Any enforcement activity. No fines or supervisory actions under the RJC are documented as at the date above. Failing to register has been finable since 15 September 2026, but under Article 66(5) a warning must come before proceedings unless the breach was intentional.
Information provided for general guidance; always consult Decreto-Lei n.º 125/2025 and Regulamento n.º 756/2026 as published in the Diário da República, the CNCS guidance, and Portuguese legal counsel, for definitive NIS2 compliance requirements in Portugal.