When Is an Electronic Signature Equivalent to a Handwritten One?
Electronic signature
9. September 2026
Electronic signature
9. September 2026
Article content
Digitalization is bringing new possibilities to legal and business relationships as well. One of the significant tools of these changes is the electronic signature. As the obligation to communicate with the state and its bodies electronically increases, so does the importance of electronic signing. In this article you will learn when an electronic signature fully replaces a handwritten signature and how you can obtain one in just a few clicks.
At the beginning of this section, we will focus on characterizing the handwritten signature and the electronic signature.
What Is a Handwritten Signature?
The current valid and effective legal regulations in Slovakia do not contain a legal definition of the term handwritten signature. To define it, we therefore have to rely on case law and established practice, according to which such a signature must:
Act No. 40/1964 Coll., the Civil Code, as currently in force (hereinafter the “Civil Code”), states in the provision of Section 40(3) that a written legal act is valid if it is signed by the acting person.
The written form of a legal act is also preserved if the legal act is made by telegraph, teletype or electronic means that allow the capture of the legal act and the identification of the person who made it.
Important legal information:
The Civil Code uses the terms guaranteed electronic signature and guaranteed electronic seal, whereby these terms are understood to mean the qualified electronic signature and the qualified electronic seal.
What Is an Electronic Signature and What Are Its Legal Effects?
You will find the legal definition of the electronic signature in Regulation (EU) No 910/2014 of the European Parliament and of the Council (hereinafter the “Regulation”). Under Article 3, point 10 of this Regulation, an electronic signature is a set of data in electronic form which is attached to or logically associated with other data in electronic form and which the signatory uses to sign.
This definition represents the basic form of the electronic signature, for which the legislation does not require any specific technical or security features to be met (referred to in English as a “Simple Electronic Signature”). The Slovak equivalent is the term simple electronic signature, whereby such a signature is not, from the perspective of the valid and effective legislation, as legally binding as a handwritten signature.
A practical example:
In practical life, you may encounter a simple electronic signature, for example, when submitting an order form while shopping in an e-shop.
The highest legal force belongs to the qualified electronic signature. Under Article 3(12) of the Regulation, a qualified electronic signature is created using a qualified electronic signature creation device and is based on a qualified certificate for electronic signatures. A qualified certificate is a certificate issued by a qualified trust service provider that meets the requirements set out in Annex I of the Regulation.
Important:
The company Brain:it is a qualified trust service provider within the meaning of the Regulation as well as within the meaning of Slovak legislation.
The basic legal regulation governing the legal effects of the electronic signature is found in the Regulation and subsequently in the provisions of the Civil Code, which we mentioned in the previous part of the article. What does the Regulation say?
In practical life, you may encounter a qualified electronic signature, for example, when using services on the Slovensko.sk online portal, when you use an identity card with a chip (eID) and enter your security code.
What Documents Can You Sign With a Qualified Electronic Signature (QES)?
Using a QES, you can sign, for example, the following documents:
On our blog you will find further tips and important information on using a qualified electronic signature in practice. In one of the blog articles, for example, we have prepared for you an overview of how to use a qualified electronic signature when filing to the real estate cadastre.
Using a qualified electronic signature in both business and personal dealings ensures authenticity, integrity and non-repudiation. Thanks to this, it is possible to unambiguously verify the identity of the signing entity and prove the immutability of the signed documents at the time of their signing.
How to obtain a qualified electronic signature?
You create an application to obtain a qualified electronic signature on the zone.nfqes.com website. After arranging an in-person visit to the registration authority, you present your identity documents. Subsequently, a qualified certificate is issued to you and you can start signing.
Get all the important information about the qualified electronic signature, its advantages and the use of the QES in practice.
The author of the article is

Miroslav Rechtorík