2026 brings mandatory e-invoices, fiscalization and reporting to the Tax Administration.
Croatia is introducing Fiscalization 2.0, which brings changes in the area of e-invoices and tax reporting. Since the news will affect businesses, below we summarize the key information and how bizBox can help you with it.
E-invoices are coming for all B2B transactions — are you ready?
Deadlines and obligations
- From 1. 1.2026. – mandatory e-invoices for all VAT payers
- From 1. 1.2027. – mandatory e-invoices for self-employment income tax and corporate income tax payers
Main obligations
- Every issued and received e-invoice must be fiscalized and submitted to the Tax Administration.
- It is mandatory to publish the identifier in the AMS (Metadata Services Directory) in order to connect service providers and companies.
- E-invoices must be stored in their original format (UBL 2.1) according to the legal rules on archiving
How bizBox helps you | ZZI
bizBox is a certified solution that 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.
- Automated fiscalization and e-reporting to the Tax Administration.
- Secure exchange and storage of documents in accordance with regulations.
- Full integration with ERP systems or use of the bizBox web application.
- Always in compliance with applicable legislation.
Guide by law - free download
Download a free guide with detailed explanations of legal obligations, technical requirements and steps for preparing your business:
More detailed information about the law on e-invoices
Advantages and greater transparency
Advantages and automation
The introduction of e-invoices brings a digital transformation of business.
Automated exchange and fiscalization of e-invoices reduce costs, speed up billing and increase data accuracy.
bizBox enables fully automated processing – from issuance to archiving of e-invoices – in accordance with the new legal requirements and UBL 2.1 standards (CIUS HR).
Greater transparency and security
Fiscalization 2.0 allows the Tax Administration to have real-time insight into actual transactions, thereby increasing transparency and reducing the risk of errors or abuse.
All data is transmitted encrypted and digitally signed, ensuring the integrity, authenticity and security of each e-invoice exchanged between companies.
Increased traceability and visibility of sent documents
From January 1, 2026, VAT taxpayers are required to issue and receive e-invoices exclusively in electronic form, while from January 1, 2027, the obligation also applies to income tax and corporate tax taxpayers.
All invoices issued and received will be fiscalized in real time and forwarded to the Tax Administration.
This introduces a single business standard for all entities in Croatia.
Valid only for accounts within Croatia.
AMS and identifiers
In order for the exchange of e-invoices to be efficient, each company must have its own identifier in the AMS (Address Book of Metadata Services).
AMS enables automatic recipient discovery and ensures connectivity between service providers and businesses.
The publication of identifiers in the AMS is crucial for the reliable and fast exchange of e-invoices among Croatian taxpayers.
Information brokers
Information intermediaries play a key role in fiscalization 2.0 – they ensure the correct transmission, digital signature, and fiscalization of each e-invoice.
Only certified intermediaries can operate in the e-invoice system.
bizBox by ZZI is an officially certified information intermediary of the Tax Administration of the Republic of Croatia, thus guaranteeing a safe, legal and automated exchange of documents.
Fiscalization and e-reporting
The new law introduces continuous reporting (real-time reporting) – all fiscalized e-invoices are automatically reported to the Tax Administration.
The system supports automatic exchange, fiscalization and e-reporting, which significantly reduces administration and speeds up tax reporting.
Companies thus gain a reliable, transparent and digitally aligned business process that facilitates daily work and supervision.