Portugal Reveals Digital Identity Roadmap - EUDI Integration with CMD

Portugal announces EUDI Wallet will integrate with Chave Móvel Digital (CMD) serving 5+ million users.

Portugal's Digital Government Infrastructure

Portugal has established itself as one of Europe's leaders in digital government services, making it an ideal early adopter for the EUDI Wallet framework. The country's digital transformation journey began with the introduction of the Cartao de Cidadao (Citizen Card) in 2007, which replaced multiple identity documents with a single smart card containing biometric data and digital certificates. This foundational infrastructure has been continuously expanded and refined over nearly two decades.

The Chave Movel Digital (CMD) system, launched in 2014, brought mobile authentication to Portuguese citizens. CMD allows users to authenticate themselves using their mobile phone number and a security PIN, with an optional digital signature capability. With over 5 million active users representing roughly half of Portugal's population, CMD demonstrates that Portuguese citizens are comfortable with digital identity solutions and willing to adopt new technologies for everyday interactions with government and private services.

The Autenticacao.gov platform serves as Portugal's central authentication hub, connecting dozens of government services through a single sign-on mechanism. Citizens can access tax services, social security, healthcare, education, and justice portals using CMD credentials. This centralized architecture provides a natural integration point for the EUDI Wallet, as the existing authentication flows can be extended to support wallet-based credential presentation alongside traditional CMD authentication.

CMD Integration Architecture for the EUDI Wallet

The technical integration between CMD and the EUDI Wallet follows a layered approach designed to preserve existing functionality while adding new capabilities. The AMA (Agencia para a Modernizacao Administrativa), Portugal's agency for administrative modernization, is leading the technical implementation in coordination with the European Commission's EUDI reference implementation teams.

At the identity proofing layer, CMD's existing high-assurance authentication serves as the primary enrollment mechanism for the Portuguese EUDI Wallet. Citizens who already have CMD accounts can bootstrap their wallet enrollment using their existing credentials, eliminating the need for in-person identity verification. This significantly reduces the friction of wallet adoption and uses the trust already established through CMD's identity proofing process.

The credential issuance layer enables Portuguese government agencies to issue verifiable credentials directly to citizens' wallets. The Portuguese ID card credential, driver's license, social security number, and tax identification number are among the first credentials planned for issuance. Each credential follows the EUDI Wallet's technical standards for selective disclosure, allowing citizens to share only the specific attributes needed for each transaction rather than their full identity information.

Cross-Border Benefits for Portuguese Citizens

Portugal's EUDI Wallet implementation has significant implications for cross-border mobility, particularly given the country's large diaspora across Europe. An estimated 2.3 million Portuguese citizens reside in other EU member states, with significant communities in France, Luxembourg, Germany, and the United Kingdom. For these citizens, the EUDI Wallet offers a standardized way to prove their identity and access services in their country of residence.

Tourism is another major use case for Portugal's EUDI implementation. As one of Europe's most popular tourist destinations, welcoming over 26 million international visitors annually, Portugal's service sector stands to benefit significantly from streamlined identity verification. Hotels, car rental agencies, and financial services can verify tourist identities through wallet credential presentation, reducing check-in times and improving the visitor experience.

The Golden Visa program and Portugal's growing appeal to digital nomads and remote workers create additional demand for strong cross-border identity verification. Non-EU residents who obtain Portuguese residency can eventually receive EUDI Wallet credentials, enabling them to access services across the EU. This positions Portugal as an attractive destination for international talent seeking smooth integration into the European digital ecosystem.

Pilot Program and Early Adoption Strategy

Portugal's pilot program, expected to launch in late 2025, targets existing CMD users as the initial cohort. This strategic choice ensures that early adopters are already familiar with digital authentication concepts and can provide meaningful feedback on the wallet experience. The pilot encompasses three primary use cases: government service authentication, cross-border identity verification at EU borders, and age verification for online services.

The government service authentication pilot enables CMD users to add their EUDI Wallet as an alternative authentication method for services accessed through the Autenticacao.gov platform. Users can choose between traditional CMD authentication and wallet-based credential presentation, allowing them to experience the new system while maintaining access through familiar methods. This approach minimizes risk and builds confidence gradually.

Portuguese banks, including CGD, Millennium BCP, and Novo Banco, have expressed interest in participating in the pilot's private-sector track. Banking use cases include account opening with wallet-based identity verification, strong customer authentication for online banking, and qualified electronic signatures for loan agreements. The banking sector's participation is critical because financial services represent one of the highest-volume use cases for identity verification across Europe.

Timeline and Full Deployment Roadmap

Portugal's EUDI Wallet roadmap is structured in four phases aligned with the EU-wide implementation timeline. Phase one, running through late 2025, focuses on the pilot program described above with approximately 100,000 invited CMD users. Phase two, spanning the first half of 2026, opens enrollment to all Portuguese citizens and residents while expanding the number of government services that accept wallet credentials.

Phase three, covering mid to late 2026, integrates the private sector with mandatory acceptance by banks, telecommunications providers, and healthcare organizations. Portugal's strong regulatory framework for digital services, including the Simplex program for government simplification, provides the administrative foundation for mandating wallet acceptance across critical sectors. By December 2026, Portugal aims to have all essential public and private services connected to the EUDI Wallet ecosystem.

Phase four, extending into 2027, focuses on advanced use cases including qualified electronic signatures, professional credential issuance, and integration with the European Health Data Space. Portugal's ambition is to become one of the first EU countries to achieve complete EUDI Wallet deployment, building on its track record of digital government leadership and using CMD's extensive user base as a springboard for rapid adoption.