ELECTRONIC INVOICING
E-Invoicing
in Croatia
Format: HR-CIUS
Where are we now?
In Croatia, e-invoicing has undergone a significant acceleration with the introduction of the regulatory package “Fiscalization Act 2.0”, which came into force on 1 January 2026. The new framework makes electronic invoicing mandatory for all B2G, B2B and B2C transactions, establishing itself as one of the most comprehensive and sophisticated models in Europe.
For B2G and B2B, all companies must issue and receive electronic invoices in the structured HR-CIUS (UBL) format, compliant with the European standard EN 16931. Exchange takes place via a decentralised network similar to Peppol, while tax data must be transmitted in real time to the authorities through the central ePorezna platform, in a process known as “Fiscalization”.
The Croatian model also introduces advanced e-reporting obligations: both the supplier and the customer must send invoice data to enable cross-checks, together with information on payments, any rejections and the classification of goods and services.
In B2C, the system adopts a “clearance” approach: each transaction must be prevalidated by the tax authority, which returns a unique identifier (JIR) to be included on the invoice, often via QR code.
Implementation is planned in two phases, with full extension to all businesses by 2027. For companies, adapting to the Croatian model means facing a complex but strategic evolution towards more transparent, automated and integrated tax processes.
A-Cube APIs for e-invoicing in Croatia
Where are we now?
In Croatia, e-invoicing has undergone a significant acceleration with the introduction of the regulatory package “Fiscalization Act 2.0”, which came into force on 1 January 2026. The new framework makes electronic invoicing mandatory for all B2G, B2B and B2C transactions, establishing itself as one of the most comprehensive and sophisticated models in Europe.
For B2G and B2B, all companies must issue and receive electronic invoices in the structured HR-CIUS (UBL) format, compliant with the European standard EN 16931. Exchange takes place via a decentralised network similar to Peppol, while tax data must be transmitted in real time to the authorities through the central ePorezna platform, in a process known as “Fiscalization”.
The Croatian model also introduces advanced e-reporting obligations: both the supplier and the customer must send invoice data to enable cross-checks, together with information on payments, any rejections and the classification of goods and services.
In B2C, the system adopts a “clearance” approach: each transaction must be prevalidated by the tax authority, which returns a unique identifier (JIR) to be included on the invoice, often via QR code.
Implementation is planned in two phases, with full extension to all businesses by 2027. For companies, adapting to the Croatian model means facing a complex but strategic evolution towards more transparent, automated and integrated tax processes.
A-Cube APIs for e-invoicing in Croatia
Local regulations, global API.
Every country has its own tax rules — we always have the right API. Our composable technology allows the platform to adapt to local needs, offering individual components or a fully integrated all-in-one solution.
European Union
Mandatory: VIDA from 2028
Local regulations, global API.
Every country has its own tax rules — we always have the right API. Our composable technology allows the platform to adapt to local needs, offering individual components or a fully integrated all-in-one solution.
European Union
Mandatory: VIDA from 2028
Local regulations, global API.
Every country has its own tax rules — we always have the right API. Our composable technology allows the platform to adapt to local needs, offering individual components or a fully integrated all-in-one solution.
European Union
Mandatory: VIDA from 2028