Croatia

Croatia has made e-invoicing mandatory for domestic B2B transactions from 2026, combined with fiscalisation of invoice data to the tax authority. The reform is known as Fiscalisation 2.0.

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At a glance

B2B

Mandatory

B2G

Mandatory

Infrastructure

Information intermediaries plus fiscalisation

Next deadline

1 Jan 2027

Key e-invoicing deadlines

1 July 2019
Completed

Public-sector e-invoicing becomes mandatory

Suppliers to Croatian public authorities must send e-invoices that follow the European standard.

1 January 2026
Completed

Fiscalisation 2.0 begins

VAT-registered businesses must issue and receive e-invoices for domestic B2B transactions, with invoice data reported to the tax authority. Non-VAT entities must be able to receive e-invoices

1 January 2027
Upcoming

Non-VAT entities start issuing

Businesses that are not registered for VAT must start issuing e-invoices.

Overview

Croatia already required e-invoicing for public procurement and fiscalisation for cash transactions. Fiscalisation 2.0 brings these together and extends them to B2B. Invoices between businesses must now be exchanged electronically, and their data is reported to the tax authority as part of the same flow. The model is decentralised.

Businesses exchange invoices through information intermediaries, certified service providers that send and receive invoices and report data to the tax authority. This approach is close to the EU's ViDA direction, with structured invoices and near real-time reporting. Alongside invoice exchange, businesses must also report data on payments and on invoices that are rejected, which gives the tax authority a fuller picture of each transaction

Who must comply

From January 2026, VAT-registered businesses established in Croatia must issue and receive e-invoices for domestic B2B transactions. Public bodies and other entities that are not registered for VAT must also be able to receive e-invoices from 2026 (verify).

Entities outside the VAT system, such as some small businesses and public bodies acting outside their economic activity, must start issuing e-invoices from 2027 (verify). Foreign businesses without a Croatian establishment should check how the rules apply to their Croatian VAT registration.

Requirements

Invoices must be structured, follow EN 16931 and the Croatian national specification, and be exchanged through an information intermediary. Each invoice is fiscalised, meaning the required data is sent to the tax authority as part of the exchange.

Businesses must also report payment data and the rejection of invoices within the required deadlines. They must keep invoices in their electronic form for the legal retention period. Correct master data, including the OIB (personal identification number) of both parties, is needed for routing and reporting.

Formats and infrastructure

The format is UBL 2.1 following EN 16931, with Croatian extensions defined in the national specification (HR CIUS). Additional data fields are required for Croatian tax reporting. Invoices travel between information intermediaries, which also handle fiscalisation and reporting.

A national directory (AMS) identifies each business's address for receiving invoices (verify). Public-sector invoices are exchanged through the national e-invoicing service, which connects to Peppol.

How HubBroker can help

HubBroker connects your ERP to the Croatian e-invoicing setup. We map your invoice data to UBL 2.1 and the Croatian specification, add the fields needed for fiscalisation, and validate every invoice before sending. Inbound invoices arrive in your ERP as structured data, ready to post, and payment and rejection events can be reported through the same connection. (Confirm HubBroker's route to a Croatian information intermediary before publishing.) For international groups with Croatian entities, this means Croatian invoicing can run from your existing ERP, alongside your other European e-invoicing flows.

Frequently asked questions

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Yes. It has been mandatory for domestic B2B between VAT-registered businesses since 1 January 2026.

It is the reform that combines B2B e-invoicing with reporting of invoice data to the tax authority.

It is a certified service provider that exchanges einvoices and reports data on a business's behalf.

No