Signing company legal documents in Hungary: requirements, checks and common mistakes

The content of a contract can be commercially advantageous and legally carefully elaborated, but it can still carry a serious risk if it is signed by the wrong person in the wrong way. Signing company legal documents is not just an administrative step: it affects the representation of the company, the validity of the legal statement, the probative value of the document and, in certain cases, the usability of the authority or the court.

In practice, therefore, it is not enough to check whether there is a signature at the end of the document. It must also be examined whether the signatory is entitled to represent the company, whether he or she can act independently or only together with another person, whether separate approval from the owner or the body is required, and whether the paper or electronic form chosen meets the requirements of the given transaction.

The following summary presents the most important signing rules and checkpoints of businesses operating in Hungary.

What does company representation and the right to sign for companies mean?

The company is an independent legal entity, but in practice it makes legal declarations through natural persons. According to the main rule of the Civil Code, the legal representation of a legal person is performed by the executive officer, for example, the managing director of a limited liability company. On the basis of the company’s articles of association, internal regulations or the written authorization of the management, other persons may also be granted the right of representation.

The right to sign a company means the written representation of the company, i.e. the right to sign on behalf of the company. Not every employee, owner or professional manager is automatically entitled to sign a contract. The ownership position of a member or shareholder does not in itself mean the right to sign a company, just as a high position or the designation “director” does not automatically prove the right to represent a Hungarian company.

One of the basic initial steps of the company formation in Hungary is the unambiguous definition of the powers of representation and signing within the company. When preparing the articles of association, it must be specified who is entitled to represent the company, and whether the person can act independently or jointly with another representative. A properly designed representation system later determines the conditions under which managing directors and other authorized persons can make a valid legal declaration and sign on behalf of the company.

When examining the right of representation, the current data of the company register are the primary starting points. The register can be used to determine, among other things, the person, position and method of company registration. Effective Hungarian company data can also be checked in the free e-company register.

Separate or joint company registration: what is the difference?

The method of company registration can be independent or joint.

• In the case of an independent company signing, the registered representative may make a written legal declaration on behalf of the company on his own.
• In the case of joint company registration, the valid legal declaration requires the joint signature of the persons specified in the company register and the articles of association.

One of the most common mistakes is that in the case of joint representation, the document is signed by only one of the managing directors. In this case, the problem is not the appearance of the signature, but the fact that the legal declaration was not made in the name of the company according to the registered method of representation.

In the course of verification, it is not enough to simply count the signatories. It is also necessary to look at whether the respective persons are authorized to act jointly with each other. For example, in some companies, any one of two managing directors may sign together with another specific officer, while another combination is not appropriate.

What makes a proper signature legal?

According to the Companies Act, the person entitled to sign the company must sign on behalf of the company in the manner and form contained in the authentic company signature statement. The document must clearly show that the signatory is not acting as a private person, but on behalf of the designated company.

The corresponding signature block therefore typically contains:

• the full or appropriately abbreviated name of the company;
• the name of the signatory;
• the signatory’s representative capacity, such as ‘executive director’;
• where necessary, the method of representation;
• signature, and in the case of electronic documents, the appropriate electronic authentication.

As a general statutory condition, the company stamp is not mandatory for the validity of company contracts. However, its use can be practical and may be required as a special requirement by a bank, authority, business partner or internal regulations. However, the stamp alone does not replace the signature of the person authorised to represent the company.

Specimen signature and specimen signature: not the same as the right of representation

The specimen signature is a notarized document. The specimen signature may be prepared and countersigned by a lawyer or a legal adviser of the Chamber in connection with a specific company registration procedure. Both documents show the manner in which the representative signs on behalf of the company.

However, it is important to note that none of these documents is a substitute for the verification of the current company register. The existence of a previously issued specimen address does not in itself prove that the person concerned is still a managing director or a representative on the date of signing. In the meantime, the representative mandate may have been terminated, the method of company registration may have changed, or termination proceedings may have been initiated against the company.

Therefore, the correct order is as follows:

1. checking current company information;
2. examination of the method of representation;
3. if necessary, a comparison of the specimen address or specimen signature;
4. formal verification of the document and signature.

Do I need two witnesses for a company document?

Not automatically. According to the Code of Civil Procedure, a private document with full probative value may be a document that is duly signed by the person authorised to represent the legal person in accordance with the rules applicable to it. For this reason, a duly signed company document does not, as a general rule, require two witnesses because one of the parties is a business association.

Two witnesses typically play a role when they wish to issue a paper-based document written by a natural person not entirely in his or her own hand as a private document with full probative value. Regardless of this, a separate law, contract, bank regulation or the nature of the transaction may establish additional formal requirements.

An important difference is that validity and probative value are not the same concepts. A simple private document may also be valid, but in the event of a dispute, it is not subject to the same statutory presumption of proof as a private document with full probative value. And if the law prescribes a specific form for the validity of a transaction, the absence of such a form may affect the validity of the transaction.

When do I need a lawyer’s countersignature or notarial assistance?

Most ordinary commercial contracts, such as a general service or supply contract, do not require a lawyer’s countersignature. However, for some types of documents, the law requires a stricter form.

These can be in particular:

• the articles of association of the business association and their amendment;
• certain company registration documents;
• documents necessary for the transfer of ownership of immovable property or other entries in the land register;
• powers of attorney and declarations for which a specific form is prescribed by a specific law or by the proceeding institution;
• commitments to be entered into a notarial deed or made before a notary for the purpose of direct enforceability.

Countersignature by a lawyer is not simply a “stronger signature”. The countersigning lawyer verifies the identity of the parties, the signature and the legal compliance of the document in accordance with the applicable rules, among other things. A notarial deed is an authentic document, which may have stronger evidential effects than a private document and, if it is properly substantiated, directly enforceable.

Internal approval and external representation: two separate issues

In the case of a transaction of greater value or strategy, a decision of the general meeting, the board of directors or the supervisory board is often required. However, the approval decision does not replace the proper signing of the contract. The resolution certifies that the transaction has been authorised by the appropriate body of the company; the contract must still be signed by the person authorised to represent the company.

On the other hand, it may also happen that a registered representative acts externally validly, but violates the company’s internal approval or threshold rules. According to the Civil Code, the restriction of the right of representation of a registered representative or the requirement of approval is not, as a general rule, effective against third parties, unless the third party knew or should have known about the restriction and the lack of approval. Therefore, in the case of high-value transactions, both levels – external representation and internal decision-making – must be documented.

Signature of a proxy: what to check?

Not only the representative in the company register can sign. The company may also act through a proxy if the given case and the relevant legislation allow it.

When examining the power of attorney, it is necessary to check:

• who gave the power of attorney and whether he or she was entitled to represent the company;
• exactly what matters are covered by the power of attorney;
• whether it contains an amount limit, a time limit or other conditions;
• whether it authorises the additional authorisation;
• whether it corresponds to the form required by the main transaction or procedure;
• whether it has been revoked or has expired.

Powers of attorney with general wording, old or issued for other purposes are particularly risky. In banking, land registry and official matters, the proceeding body may also apply its own formal and substantive requirements.

Electronic signatures for companies: when is it safe?

An electronic document does not become authentic by inserting an image of a signature into a PDF. The legal and technical levels of electronic signatures differ.

According to the eIDAS Regulation, a qualified electronic signature has the same legal effect as a handwritten signature in the European Union. The Hungarian Code of Civil Procedure recognises as a private document with full probative force an electronic document on which the signatory has placed an advanced electronic signature or stamp based on a qualified or qualified certificate and, if required by law, has also affixed a time stamp.

The evidentiary and formal assessment of a simple e-mail, typed name, signature image or scanned signed sheet is more uncertain. According to the Curia’s published position, such an electronic form of communication may meet the requirement of being in writing if it is suitable for recalling the content unchanged under the given circumstances and for identifying the identity of the person making the statement and the date of the statement. The existence of this must be examined individually in the event of a dispute. Therefore, in the case of a contract of significant value or risk, it is not advisable to rely solely on an inserted signature image or confirmation e-mail.

Important in 2026: the DÁP eSignature cannot be used for company representation

The eSignature of the Digital Citizen mobile application provides a qualified electronic signature, but according to the rules in force, the user uses it as a private person, and the signature does not certify a representative role. The official information of the DAP explicitly states that the eSignature cannot be validly used in a corporate or professional capacity.

Therefore, the manager or other representative signing on behalf of the company must choose a solution suitable for corporate purposes from a market trust service provider, and in addition to the signature, the right of representation must also be separately verifiable.

When verifying an electronic signature, it is advisable to examine at least the following:

• whether the signature is valid and whether the document is intact;
• who is the subject of the certificate;
• the level of electronic signature;
• whether the certificate was valid at the time of signing or has not been revoked;
• whether there is a valid timestamp attached to the document;
• whether the signatory was entitled to represent the company at the time of signing;
• whether the signature meets the technical requirements of the relevant authority, bank or contractual partner.

The digitally signed original file must be kept in electronic form. The printed or scanned copy does not retain the verifiability of the electronic signature and the evidential properties of the original electronic document.

Use of company documents signed abroad in Hungary

In the case of international company structures, further checks may be necessary. In the case of a document signed in the name of a foreign company, the existence of the company, the signatory’s right of representation, the timeliness of the foreign register and the authentication required for the use of the document in Hungary must be examined.

The applicable requirement depends on the type of document, the country of issue, the treaties between the two states and the Hungarian authority, court, bank or other institution before which it is used. Notarized signature, Apostille certificate or diplomatic legalization, as well as a certified Hungarian translation may also be required.

The Apostille does not certify the economic content of the document or the legality of the contract. Basically, it helps the international acceptance of the origin of the authentic document, such as the authenticity of the signature, quality and stamp on it. Consular information also recommends that the formal and substantive requirements be agreed in advance with the Hungarian body or institution where the document is to be used.

Pre-Signature Checklist for Businesses

Proper documentation is important not only from a legal point of view, but also from an accounting point of view. Within the framework of a professional accounting service in Hungary, the proper management of the company’s financial documents, contracts and related documents can also contribute to the company’s operation remaining transparent and controllable.

Before signing any major corporate legal document, it is advisable to follow the following order:

1. Identification of the parties: exact company name, registered office, company registration number or other registration number, tax number.
2. Checking the status of the company: whether it is an operating company, whether liquidation, compulsory deletion or other termination proceedings are in progress.
3. Verification of the signatory’s eligibility: on the basis of a current certificate of incorporation or a certified foreign registration document.
4. Examination of the method of representation: separate or joint company signing, appropriate signatory combination.
5. Verification of the power of attorney: if it is not a legal or organizational representative.
6. Obtaining internal approvals:  resolutions of the members’ meeting, general meeting, board of directors or other resolutions if necessary.
7. The mandatory form is defined as a simple written form, a private document with full probative value, a countersignature by a lawyer or a notarial document.
8. Verification of the signature block: company name, signatory’s name, position and representative capacity.
9. Close the final text: all attachments, referenced documents, dates, amounts and versions should match.
10. Electronic signature validation: verification of certificate, timestamp, integrity and right of representation.
11. Authentication of foreign documents: Apostille, legalization and certified translation if necessary.
12. Secure retention: archiving of the entire signed document package, approvals, authorizations, and validation results.

The most common signing mistakes

In practice, it regularly happens that:

• a managing director who has already been recalled or resigned;
• in the case of joint company signing, only one person appears on the document;
• the owner signs, although he is not a representative of the company;
• the power of attorney does not cover the transaction in question;
• lack the necessary internal approval;
• the parties do not sign the final version or the version with the same content;
• the annexes are replaced subsequently without proper approval;
• instead of an electronic signature, only a scanned image is inserted into the document;
• the digitally signed file is printed and the electronic original is not retained;
• in the case of a foreign document, the required authentication or translation is not required;
• the DÁP eSignature is mistakenly used in the capacity of company managers.

Some of these errors may lead to the transaction being contestable, invalid or difficult to prove; in other cases, the document will not be accepted by the bank, authority or court of registration. The exact legal consequence always depends on the type of transaction, the applicable law and the specific circumstances.

How can FirmaX Hungary help?

FirmaX Hungary provides support in the corporate law and administrative matters of Hungarian businesses and companies operating with foreign ownership. Among other things, we contribute to the verification of company data and representation rights, the preparation of company modifications, the management of powers of attorney and corporate documents, and the determination of the formal requirements of foreign documents intended for use in Hungary.

If the adequacy of a contract, company resolution, power of attorney or electronic signature is in question, it is worth requesting a professional check before signing. Contact the FirmaX Hungary team to ensure that the document is signed by the right person, in the right format and with the necessary attachments.