Last updated: 12.05.2026
What is Qualified Electronic Signature (QES)?
A Qualified Electronic Signature (QES) is legally recognized across the European Union as the legal equivalent of a handwritten signature, giving it the same legal effect and making it a legally binding tool for businesses operating in Poland.
Under the eIDAS Regulation, a qualified signature is based on a qualified certificate issued by a qualified trust service provider and created using a qualified signature creation device.
It enables secure document signing in an electronic form, including financial statements, applications to the National Court Register (KRS), and other filings with public institutions. It is widely used in digital transactions, including employment contracts, HR documents, real estate transactions, and other legal documents, both domestically and in cross-border transactions across EU Member States.
As an authorized partner of Certum (Asseco Data Systems), we support clients in obtaining and implementing qualified electronic signatures in Poland, ensuring a smooth and compliant process from start to finish.
Why Do Foreign Investors Need a Qualified Electronic Signature in Poland?
Foreign investors conducting business in Poland often encounter regulatory and operational requirements that necessitate the use of a qualified electronic signature. Compared to advanced signatures or other types of e signature, a QES offers the highest level of legal certainty and compliance with EU legal requirements.
This signature is indispensable for:
- Efficiently managing corporate and internal documents and compliance processes.
- Signing files drafted in logical structure (.xml file format), which cannot be signed by hand.
- Seamlessly participating in electronic transactions or submitting official filings.
Additionally, a QES facilitates streamlined communication with Polish authorities and simplifies document handling across borders.
Do you need a qualified electronic signature to operate a company in Poland? | Video Guide
Check the video below, where Michał Dudkowiak explains why a qualified electronic signature is essential for operating a company in Poland, including when it is required, which corporate actions it enables, and how foreign investors can obtain an e-signature quickly with support from a registered agent.
Key Benefits of a Qualified Electronic Signature (QES)
A qualified electronic signature offers significant advantages for foreign investors, including:
- Time Efficiency: Eliminates the need for physical signatures, enabling quick execution of documents remotely.
- Legal Security: Provides robust authentication and integrity protection for signed documents, ensuring legal validity across the EU.
- Cost Savings: Reduces expenses related to courier services, travel, and manual processing of documents.
- Environmental Impact: Promotes a paperless workflow, supporting sustainability goals.
- Cross-Border Usability: Recognized through many countries, it simplifies compliance and contract execution within worldwide markets.
How to Obtain a Qualified Electronic Signature in Poland – Step-by-Step Guide
Choose a Qualified Trust Service Provider
In Poland, qualified electronic signatures are issued by certified trust service providers supervised by the Ministry of Digital Affairs. A list of accredited providers is available on the website of the National Certification Center (nccert.pl) or eIDAS Dashboard (https://eidas.ec.europa.eu/efda/home), which provides trust service lists all over European Union.
Verify Your Identity
Obtaining a qualified electronic signature requires verifying the applicant’s identity. For foreign investors, the following methods are available:
- In-person verification: Visiting a service point of the selected provider in Poland and presenting identification documents.
- Notarial verification: One’s identity can be verified via signing the certificate application before a notary public in Poland, who can certify, that the handwritten signature on the application is signed by a person verified in the notary’s office.
- Remote verification: Some providers offer online identity verification via trusted video conference.
Choose the Type of Qualified Electronic Signature
Trust service providers offer various forms of qualified electronic signatures:
- Card-based signature: Requires a special cryptographic card and a reader.
- Cloud-based signature: Allows signing documents using mobile devices without additional hardware. It is more convenient and safe, as the cloud signature may not be lost (though a loss of password may be a problem, but it can be recovered through most providers).
Install the Required Signature Software
Once identity verification is complete and the certificate is issued, the appropriate software provided by the selected trust service provider must be installed to use the electronic signature.
Software is usually available for both Windows and MacOS operating systems, but usually, there are no distributions for Linux.
Common Challenges When Obtaining a Qualified Electronic Signature
- Language Barriers: Some providers may only operate in Polish. Consider engaging a translator or legal advisor.
- Technical Requirements: Ensure compatibility of the secure device with your operating system.
- Remote Verification Issues: If remote identification is unavailable, plan for an in-person visit for the purpose of verification, or a notarial one with an assist of person from Poland.
Legal Support for Qualified Electronic Signatures in Poland
Navigating Polish regulatory and administrative systems can be complex. Our legal team offers:
- Assistance in selecting a QES addressing your needs.
- Guidance through the application process.
- Technical support and compliance advice.
Conclusion – Qualified Electronic Signature in Poland
A Qualified Electronic Signature is a vital tool for foreign investors seeking to operate efficiently in Poland and across the EU. It enables secure and legally binding document signing, ensures compliance with Polish law and applicable EU legal requirements, and reduces potential legal risks in both domestic and cross-border operations.
By following the steps outlined above, you can obtain a QES and streamline your signing process, while ensuring proper electronic identification and protection of document integrity.
If you require support in obtaining or implementing a qualified electronic signature, our team is ready to assist you at every stage of the process.
FAQ – Qualified Electronic Signature in Poland
What is the difference between a qualified signature and other types of electronic signatures?
A qualified electronic signature is the only type of e signature that is legally equivalent to a handwritten signature under EU law. Other types, such as a simple electronic signature, basic electronic signature, or standard electronic signature, may still be valid, but their legal recognition and legal standing depend on the specific use case and applicable regulations.
An advanced electronic signature (AES) must be uniquely linked to the signer and allow identification, but only a qualified signature provides the highest level of legal certainty in legal proceedings.
What are the key elements of a qualified electronic signature?
A qualified signature is based on a digital certificate issued by a qualified trust provider among officially recognized certified providers. It relies on secure signature creation data and ensures that the signature is uniquely linked to the signer’s identity.
These solutions are supported by public key infrastructure, which guarantees document integrity and protects against unauthorized changes.
How is identity verified when obtaining a Qualified Electronic Signature?
To obtain a qualified signature, complete identity verification is required. This can be done either face to face during a meeting with an identity verifier or remotely using advanced verification methods.
The process ensures proper electronic identification and confirms the authenticity of the signer before the certificate is issued.
Why is a qualified electronic signature important for foreign investors?
A qualified electronic signature allows foreign investors to operate remotely in Poland without the need for physical presence. It enables secure document signing, participation in administrative procedures, and execution of contracts in compliance with EU and Polish legal frameworks.
What is the difference between a qualified electronic signature (QES) and an advanced electronic signature (AES)?
An advanced electronic signature (AES) is a type of digital signature that is uniquely linked to the signer and allows identification of the signer’s identity, typically using secure technologies such as public key infrastructure. It also ensures document integrity, meaning that any changes to the signed data can be detected.
However, a qualified electronic signature (QES) goes one step further. It is based on a digital certificate issued by a qualified trust provider and created using a qualified signature creation device. As a result, a QES has full legal recognition and is legally equivalent to a handwritten signature under EU regulations.
In practice, while both AES and QES can be used in digital transactions, only a QES provides the highest level of legal standing and is required in situations where Polish law mandates a written form, particularly in legal proceedings or high-risk business scenarios.
