
Becoming an Estonian e-resident opens the door to managing your EU-based company fully online. Central to this digital empowerment is your e-Residency digital ID, a secure tool enabling you to authenticate yourself and digitally sign documents anywhere in the world. This guide walks you through setting up and using your digital ID, including the modern alternative, Smart-ID, so you can confidently access Estonia’s e-services and grow your international business.
Why your digital ID is essential for e-Residency
Your digital ID card is the key to accessing Estonia’s digital infrastructure. With it, you can register a company online, sign contracts, file taxes, and open bank accounts all remotely. This convenience is especially vital for digital nomads, freelancers, and entrepreneurs worldwide seeking an EU base without physical relocation.
Estonia’s digital ID system guarantees security and trust, providing a government-issued, internationally recognized digital identity. This enables businesses to meet legal requirements for identification and electronic signatures seamlessly.
What does your e-Residency Kit include?
Upon successful application and collection, your e-Residency kit contains:
- The digital ID card
- A USB smart card reader for connecting the card to your computer
- An envelope with PIN codes essential for secure authentication and digital signatures

These items work together to give you full access to digital services that require a verified identity.
Step-by-step setup of your Digital ID
1. Verify your Digital ID card activation
Confirm your card and its digital certificates are active by entering your card’s document number on the Estonian Police and Border Guard Board’s Document Validity Check. Activation typically takes up to 24 hours after collection.
2. Install the official Digital ID software
Download the latest version of the official ID software compatible with your operating system (Windows or MacOS) from the Estonian ID portal. This software allows your device to interact securely with your digital ID card.

3. Connect your card reader and Digital ID
Insert your digital ID card into the USB smart card reader, then connect this reader to your computer. You can now authenticate yourself in Unicount and sign documents across supported Estonian e-services such as the e-Business Register or the Tax Board.
Introducing Smart-ID: A mobile alternative to the physical card
Smart-ID offers a convenient way to authenticate and sign digitally without needing a physical card or reader. It is a mobile app available worldwide, compatible with your e-Residency digital identity.
Benefits of Smart-ID
- No physical card or hardware required
- Works via smartphone app with PIN codes
- Ideal for those who prefer mobile-first access
How to get started with Smart-ID
- Download the Smart-ID app from App Store or Google Play
- Follow the app instructions to link your e-Residency digital ID
- Use Smart-ID for quick authentication and signing via phone
Smart-ID complements your digital ID and provides flexible access options, ensuring your business operations never pause due to hardware limitations.

Tips for maintaining Digital ID security and functionality
- Always keep your PIN codes confidential. Losing them requires a visit to an Estonian embassy or Police and Border Guard Board office.
- Regularly update your computer’s operating system, browsers, and ID software to avoid interruptions.
- If your card or PINs are blocked or lost, follow official steps immediately to unblock or replace them.
- For lost or stolen digital ID cards, contact the Estonian ID helpline at +372 677 3377 for instant certificate suspension.
Common troubleshooting scenarios
- Certificates not active after 24 hours? Contact the Police and Border Guard Board at ppa@politsei.ee.
- Can’t log in to e-services? Check card reader compatibility and if PINs are blocked via the DigiDoc4 software.
- PIN blocked? Use your PUK code to unblock, but if the PUK is blocked, replacement is necessary.
- Issues on macOS? Clear cached sessions or consult official installation instructions to fix login issues.
Explore key Estonian e-services using your Digital ID
Your digital ID grants access to vital Estonian government services online:
- State Portal: Manage your personal information
- e-Business Register: Manage your company
- e-Tax and Customs Board: Submit tax declarations and reports
- e-Notary: Authenticate contracts and powers of attorney
- e-Apostille: Apostille company documents
These portals streamline every aspect of your business administration in Estonia.
Conclusion: Empower your business with Estonian digital identity
Your Estonian e-Residency digital ID, together with modern tools like Smart-ID, unlocks a world of digital opportunities. Setting it up correctly and maintaining its security ensures access to fast, reliable, and legally compliant online business management. Whether you are starting a company, signing contracts, or filing taxes remotely, this digital identity is your gateway to seamless EU business operations.