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Terms and Conditions

Effective from: 10 August 2026  |  Version: 1.0

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These Terms and Conditions (the "Terms") govern the use of the web-based application called TaxEZ (the "Service") between the Service Provider and the Client using it. This document is an informal English translation of the original Hungarian-language ÁSZF prepared for the convenience of non-Hungarian-speaking Clients. In the event of any discrepancy or dispute, the Hungarian-language version shall prevail and shall be the legally binding document. Please read this document carefully before registering or using the Service.

1. Details of the Service Provider

Company name/name of sole traderMate Svecz │ TaxEZ
Registered seat / correspondence address7 Tamasi Aron street, Kalocsa, 6300 Hungary
Registration number62667696
Tax number92276390-1-23
Registering authorityHungarian Tax Authority (HTA)
E-mail contactinfo@taxez.hu
Websitehttps://taxez.hu
Hosting providerRackforest Zrt. (registered seat: 1132 Budapest, Victor Hugo utca 11. 5th floor, B05001, Hungary; tax number: 14671858-2-41)

(hereinafter: the "Service Provider")

2. Definitions

  • Service: the web-based application called TaxEZ operated by the Service Provider and its modules, which provide tax, invoicing and data-reporting functions through a machine-to-machine (M2M) connection with the electronic systems of the Hungarian National Tax and Customs Administration (hereinafter: "HTA"), including in particular the Online Invoice ("Online Számla") system.
  • Client: the legal entity, unincorporated organisation or sole trader that enters into a contractual relationship with the Service Provider for the purpose of using the Service.
  • Module: a separately subscribable, distinct functional unit of the Service (currently: Online Invoice Downloader, Tax Number Verifier, History Requester, VAT Declaration Converter, EC Listings Converter, Invoice Chain Requester, and, currently in testing or development, the Online Invoice Reporter and the eVAT module).
  • User account: the access, protected by an e-mail address and password, created by the Client to use the Service.
  • Parties: the Service Provider and the Client collectively.

3. Subject and nature of the Service

3.1. The Service Provider offers the Service under a closed, subscription-based (SaaS) model. Use of the Service and registration for it is only possible following prior, individual contact and approval by the Service Provider; there is no public, self-service, instant registration option.

3.2. By accepting these Terms, and based on the agreement reached with the Service Provider (typically via e-mail correspondence), the Client is entitled to use the Module(s) it has selected and subscribed to.

3.3. The Service Provider is entitled to unilaterally expand or modify the scope and functionality of the Modules, and to introduce new Modules. The current status of each Module (live, under testing, under development) is indicated on the Website.

3.4. Use of the Service presupposes that the Client provides its own technical user access and authorisation required for the HTA Online Invoice system and for the Module(s) it wishes to use, and that the Client is responsible for the lawful procurement and accuracy thereof.

4. Formation of the contract, registration

4.1. The Client may express its interest in the Service via the e-mail address erdeklodes@taxez.hu or through the contact options available on the Website.

4.2. The Service Provider reviews incoming requests, if necessary holds discussions with the Client (including an online personal demonstration), and then decides whether to admit the Client to the Service.

4.3. The contract between the Parties is formed upon the Service Provider's approval and the creation of a User account for the Client, or, where the Parties conclude a separate written (paper-based or electronic) agreement, at the time specified therein.

4.4. The User account is created by the Service Provider on behalf of the Client and is initially assigned a pre-generated, single-use default password, delivered to the Client through a secure channel (typically by e-mail). The Client must change the default password to a password known only to itself immediately after its first login.

4.5. By having a User account created, the Client declares that it has read and accepts these Terms and the Service Provider's Privacy Policy.

5. User account and password use

5.1. To use the Service, the Client uses a User account protected by an e-mail address and password. The User account is created by the Service Provider and is assigned a Service-Provider-generated, single-use default password; the Client may, and upon first login must, change this password to a password known only to itself.

5.2. In connection with the User account, the Service Provider processes only the Client's e-mail address and password. The password — including the initial default password and any password subsequently set by the Client — is stored in the Service Provider's systems exclusively using a secure, one-way encryption method (in hashed form); the password cannot subsequently be decrypted or retrieved by the Service Provider in readable form.

5.3. The default password is delivered to the Client by a means the Service Provider reasonably considers secure (typically in a message sent to the e-mail address provided at registration). It is the Client's responsibility to change the default password without delay after first login and not to disclose it to any third party.

5.4. The Client must keep its password (including the default password valid until changed) confidential and may not disclose it to any third party. The Client is responsible for all activity carried out through its User account, including any risk arising from a failure to change the default password.

5.5. The Client must notify the Service Provider without delay if it suspects unauthorised access to its User account. In such a case, the Service Provider is entitled to temporarily suspend the User account or to generate a new password, whether at the Client's request or on its own initiative.

5.6. The Service Provider is entitled to grant the Client's User account access rights corresponding to the subscribed Module(s), and to restrict or extend the scope of such rights in accordance with the content of the subscription.

6. Fees, invoicing and payment terms

6.1. Use of the Service is subject to a fee. The amount of the fee, its basis (e.g. the scope of subscribed Modules, number of users, data volume) and the payment frequency are recorded in an individual agreement between the Parties, or in an offer/confirmation, typically exchanged via e-mail.

6.2. The Service Provider issues invoices for the fees in accordance with applicable law, using the Számlázz.hu invoicing platform (operated by KBOSS.hu Kereskedelmi és Szolgáltató Kft., registered seat: 1031 Budapest, Záhony utca 7., Hungary; company registration number: 01-09-303201; tax number: 13421739-2-41).

6.3. Invoicing is not automated: the Service Provider issues and sends invoices manually, electronically, at a frequency agreed with the Client (e.g. monthly, quarterly, or on a one-off basis).

6.4. Unless otherwise agreed, the payment deadline shown on the invoice is 15 (fifteen) or 30 (thirty) calendar days from the date of issue. The Parties may agree on a different, longer payment deadline, which agreement shall be recorded in writing (including via e-mail correspondence).

6.5. In the event of late payment, the Service Provider is entitled to default interest under Act V of 2013 on the Civil Code (the "Civil Code"). The Service Provider reserves the right to suspend access to the affected Module(s) if payment is delayed by more than 30 days, following at least 8 days' prior written notice to the Client.

6.6. Unless indicated otherwise, prices are net prices, subject to value added tax (VAT) at the applicable statutory rate.

7. Manner of provision and availability of the Service

7.1. The Service Provider aims to ensure continuous, high-quality availability of the Service; however, given the nature of the Service and its dependency on HTA and other third-party systems (e.g. hosting, authentication providers), uninterrupted, error-free operation is not guaranteed.

7.2. The Service Provider reserves the right to carry out scheduled maintenance, of which it will, where reasonably possible, inform Clients in advance.

7.3. The Service Provider is not liable for damages arising from the temporary or permanent uHTAailability, malfunction, or delayed data provision of HTA systems or other third-party systems necessary for the operation of the Service.

8. Rights and obligations of the Client

8.1. The Client is entitled to use the subscribed Module(s) for their intended purpose.

8.2. The Client must:

  • provide accurate information required for the use of the Service (in particular, the HTA technical user's data) and promptly notify the Service Provider of any changes;
  • protect its User account and associated password from third parties;
  • use the Service only for lawful purposes, in compliance with applicable tax, accounting and data protection legislation;
  • act as data controller, and comply with the relevant statutory obligations, in respect of any personal data (e.g. of its own customers or partners) that it processes through the Service.

8.3. The Client may not resell, sublicense, or lease the Service or any part of it to third parties, nor use it to develop a competing service.

9. Rights, obligations and limitation of liability of the Service Provider

9.1. The Service Provider provides the Service with the diligence generally expected in the circumstances and in accordance with applicable law.

9.2. Except for liability for damages caused intentionally, by gross negligence, by a criminal act, or affecting life, physical integrity or health, the Service Provider's liability is limited to the fullest extent permitted by law. In particular, the Service Provider is not liable for damages resulting from the operation of HTA systems, inaccuracies in data supplied by the Client, or the Client's own omissions.

9.3. Unless mandatory law provides otherwise, the Service Provider's liability for a given Module is limited to the fees actually paid by the Client for that Module in the preceding 12 (twelve) months.

9.4. The Service Provider is entitled to unilaterally amend these Terms. Amendments will be communicated via publication on the Website and, in the case of material changes, by e-mail, at least 15 days before entry into force.

10. Intellectual property

10.1. The Service, its software environment, source code, graphic elements, trademarks and other intellectual works are the exclusive property of the Service Provider or its lawfully engaged licensors.

10.2. Use of the Service grants the Client a non-exclusive, non-transferable right of use limited to the term of the contract, which does not extend to copying, reverse engineering, further development, or making the Service available to third parties.

11. Data processing

Detailed information on the personal data processed in connection with the provision of the Service, its purpose, legal basis and the rights of data subjects is set out in a separate Privacy Policy, which forms an integral annex to these Terms.

12. Term and termination of the contract

12.1. Unless otherwise agreed by the Parties, the contract is concluded for an indefinite period.

12.2. Either Party may terminate the contract in writing, without cause, subject to 30 (thirty) days' notice.

12.3. The Service Provider is entitled to terminate the contract with immediate effect if the Client seriously breaches a material obligation under these Terms — in particular its payment obligation — despite the Service Provider's written notice.

12.4. Upon termination of the contract, the Service Provider will deactivate the Client's access to its User account and will process or delete the Client's data in accordance with statutory retention obligations, as set out in the Privacy Policy.

13. Complaint handling

13.1. The Client may submit any complaint or comment regarding the Service to info@taxez.hu.

13.2. The Service Provider will investigate complaints received and, unless otherwise required by law, respond in writing within 30 days.

13.3. If a complaint cannot be resolved between the Client and the Service Provider, the Client is entitled to turn to the competent court, or, in the case of a Client qualifying as a consumer natural person, to the conciliation board operating alongside the county (metropolitan) chamber of commerce and industry with jurisdiction over its place of residence.

14. Force majeure

Neither Party shall be liable for failure to perform the contract to the extent such failure is caused by an event beyond the Parties' reasonable control that was unforeseeable and unavoidable (including, in particular, natural disaster, war, strike, action by public authorities, internet or energy supply disruption, or cyberattack).

15. Governing law and dispute resolution

15.1. These Terms and the legal relationships arising from them are governed by the laws of Hungary, in particular the Civil Code and applicable sector-specific legislation.

15.2. The Parties will primarily attempt to resolve any dispute arising from these Terms through negotiation. Failing that, and subject to jurisdiction, the court having competence over the registered seat of the Service Provider shall have exclusive jurisdiction, unless mandatory law provides otherwise.

16. Final provisions

16.1. Should any provision of these Terms be found invalid, the validity of the remaining provisions shall not be affected; the Parties shall replace the invalid provision with one that most closely reflects its intended economic purpose.

16.2. Matters not regulated by these Terms shall be governed by Hungarian law, in particular the Civil Code and Act CVIII of 2001 on Certain Aspects of Electronic Commerce Services and Information Society Services.

16.3. These Terms enter into force on 10 August 2026 and supersede all prior versions.

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