About bizBox and ZZI – certified provider of e-invoicing and fiscalization in Croatia
Technology trusted by more than 18,000 companies across Europe. Learn more about the bizBox solution and the company ZZI d.o.o., an officially certified service provider of the Croatian Tax Administration for e-invoicing, fiscalization, and e-reporting.
Technology that Europe trusts
ZZI doo is a leading European technology company headquartered in Slovenia, present in more than 30 countries and responsible for more than 1.5 million secure digital transactions daily.
Secure exchange without obstacles
bizBox enables secure electronic document exchange, e-invoices, fiscalization and e-reporting – in accordance with the highest European standards (EN 16931, eIDAS, PEPPOL, UBL).
30 years of experience and technological excellence
Since 1991, we have been developing advanced digital solutions for government systems and the business sector, connecting thousands of companies through one of the most developed EDI networks in the region.
Complete legal security
As a certified service provider of the Tax Administration of the Republic of Croatia (Fiscalization 2.0), bizBox ensures full legal compliance and automation of the process of issuing and receiving e-invoices.
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.
Reliability confirmed by certificates
ZZI doo operates according to international quality standards:
ISO 9001 – quality management
ISO 27001 – information security
Certified e-services in the cloud
Certified PEPPOL and EDI service provider
We are connected to more than 10 international networks (PEPPOL, national HUBs, banks, ERP partners) and enable document exchange across the European Union – including Croatia, Slovenia, Italy, Serbia, Bosnia and Herzegovina and other countries in the region.
bizBox - Secure and compliant 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.
ZZI doo – Certified information intermediary of the Tax Administration
The bizBox solution has been officially included in the list of certified information intermediaries of the Tax Administration of the Republic of Croatia, confirming full compliance with Fiscalization 2.0 and the new Act on Electronic Exchange of e-Invoices.
Frequently asked questions about ZZI and the bizBox solution
What is bizBox and who is behind it?
bizBox is a solution for the digital exchange of e-invoices and other e-documents, developed by ZZI doo , a European technology leader based in Slovenia. ZZI has been in business for over 30 years and connects thousands of companies across the EU through one of the largest EDI networks in the region.
Is bizBox certified in Croatia?
Yes. The company ZZI doo is officially listed on the list of certified information intermediaries of the Tax Administration of the Republic of Croatia for e-invoices, fiscalization and e-reporting, in accordance with the Fiscalization Act 2.0.
Is bizBox safe to use?
Absolutely. bizBox operates according to international standards
Why is the name ZZI doo listed on the certificate and not bizBox?
The certificate states the name ZZI doo , because official lists of the Tax Administration and other regulatory documents always list legal entities (companies) , not their products or brands.
bizBox is a solution and brand developed by ZZI doo – a certified information intermediary and service provider for e-invoices, fiscalization and e-reporting in Croatia.
How is ZZI different from other service providers?
ZZI combines more than 30 years of experience with the most modern technology. Unlike other systems, bizBox offers full EU compliance, secure e-archive, advanced fiscalization and EDI connectivity with partners throughout the region – all on one platform.