More than just an e-invoice. Harmonized.
Papers, fiscalization and legal changes, everything is too much. ZZI bizBox simplifies this in one process: e-invoices, fiscalization, e-reporting and secure archive.
Adapted for B2B and B2G.
Solution for e-invoices, fiscalization and e-reporting.
If you want a smoother and more predictable e-invoice process, choose a solution you can rely on.
ZZI bizBox is compliant and verified, with the experience we have built over the years in e-invoices and EDI.
Legally compliant
In accordance with the Law on Fiscalization and Electronic Reporting.
Proven solution
ZZI bizBox is compliant and tested, built on many years of experience.
Excellent offer
The best ratio of price, functionality and support, without hidden “extras.”
No long-term commitments
You can change your annual package whenever you want. Without unnecessary restrictions.
Secure e-Archive
Automatic, reliable and available at a click, with an archive of up to 11 years.
Wide network
Connecting with partners and suppliers through the EDI network and standardized exchange.
Ready for the EU market
Connected to the PEPPOL network and EDI systems across Europe.
More than an e-invoice
Complete exchange of e-documents (purchase orders, delivery notes, invoices).
Legal compliance doesn't have to be complicated.
bizBox covers e-invoices, fiscalization, e-reporting and archiving, from a web application or from your accounting system (ERP), for B2B and B2G.
Free web application for e-invoices, fiscalization and e-reporting
For craftsmen and companies without ERP or with a simpler process. Create and send e-invoices quickly, without installation, with a secure archive.
Integration into the accounting system (ERP) via bizBox partners
bizBox functions are available directly in your ERP. Sending, fiscalization and e-reporting are done automatically, in accordance with the law.
bizBox Connect: connect your ERP in minutes
ERP generates e-invoices, and bizBox takes over the exchange and performs fiscalization and e-reporting. You can also use advanced functions in the web application.
Compliant with the law. From craftsmen to large business systems.
Join more than 18,000 companies already doing business with ZZI / bizBox digitally across Europe.
Frequently asked questions about e-invoices and bizBox
When do e-invoices become mandatory in Croatia?
From January 1, 2026, all taxpayers in Croatia will be required to issue and receive e-invoices in accordance with the Fiscalization and Electronic Reporting Act .
ZZI with the bizBox solution is already an officially certified service provider on the Tax Administration’s list and is fully ready to implement the new regulations.
Find more information on the page E-accounts are the law!
What does it mean that ZZI is a certified service provider?
This means that ZZI doo (OIB 98034145705) , with the bizBox solution, is officially listed on the list of certified information intermediaries of the Tax Administration of the Republic of Croatia.
bizBox users can safely and legally send, receive and fiscalize e-invoices — without additional steps or risks.
Is bizBox connected to the Tax Administration and fiscalization?
That. bizBox automatically fiscalizes and archives e-invoices in accordance with regulations.
Data is securely exchanged with the Tax Administration, and users can monitor the status of their documents at any time through the web application.
What does bizBox provide to users in Croatia?
BizBox is fully ready for Fiscalization 2.0 and enables simple and secure sending and receiving of e-invoices, as well as other electronic documents and messages within the e-Reporting system.
The solution complies with all valid technical and security requirements and enables reliable electronic data exchange in the production environment via the secure AS4 protocol .
Users have access to functionalities that follow the currently defined requirements and guidelines of the competent institutions, thus bizBox ensures legal compliance, simple implementation and carefree business .
Can someone enroll me in AMS without my consent?
No. Enrollment in AMS (Agency for Meta-Systems) without the user’s explicit consent is not permitted.
Each company decides for itself who will be its information intermediary for receiving and sending e-invoices.
bizBox believes in a fair and transparent approach , so we log into the AMS system solely based on your clear consent – never automatically and never without your knowledge.
How can I be sure I'm using a legal solution?
Check if the service provider is listed by the Tax Administration of the Republic of Croatia .
bizBox, which operates under ZZI doo (OIB 98034145705) , is on the official list of certified intermediaries – which guarantees legal compliance, security and data protection.
How much does it cost to use bizBox?
The use of bizBox is charged according to the selected package and the number of sent e-documents per year. Select the estimated volume and you will immediately see the price of the package that best suits you.
The price depends on the package and the annual number of e-documents sent.
Receiving e-documents is unlimited in all packages.
You can change your package if your volume changes.
See packages and current prices here: https://www.bizbox.hr/cjenik
Do I need technical knowledge to use bizBox?
No, you don’t need any special technical knowledge to use bizBox!
The system is simple and clear, so you can use it without difficulty – even if you are not an IT expert.
You can use bizBox via a web application or directly within the accounting system (ERP) you already use – everything works automatically and without complicated settings.
Who can I send an e-invoice to via the bizBox network?
With bizBox, you can send e-invoices to all Croatian companies that are taxpayers and will be required to receive e-invoices by law from January 1, 2026 .
In addition, bizBox allows you to send and exchange e-invoices and other e-documents across Europe and the region – including the Balkan countries and the entire PEPPOL network .
One solution, one network – connected business without borders.
Why choose bizBox?
Because bizBox is more than just an e-invoice – it covers all documents, connects all of Europe, and brings 30 years of experience in digital business.
With transparent prices, honest support and the widest EDI network in the region.
With bizBox you are ready for the law and the digital future.
You build a business, and bizBox takes care of e-invoices and e-documents – from issuing to fiscalization and archiving. Everything is transparent, fair and without obligations.
ZZI doo – certified information intermediary
The company ZZI doo with the bizBox solution has been officially included in the list of certified information intermediaries of the Tax Administration of the Republic of Croatia.
bizBox - A reliable solution for e-invoices
bizBox enables simple, secure and legally compliant sending, receiving and archiving of e-invoices, as well as connecting with partners throughout the entire fiscal and reporting process.