Croatia Introduces Mandatory E-Invoicing: What Businesses Need to Know

Croatia is taking another significant step in its digital transformation with the introduction of mandatory electronic invoicing for domestic B2B transactions. In June 2025, the Croatian Parliament passed the Fiscalization Act, setting out new e-invoicing requirements designed to modernise tax reporting, improve transparency, and streamline business processes.

The legislation forms part of Croatia's wider commitment to digitalisation and brings the country into closer alignment with the European Union's growing adoption of structured electronic invoicing.

What Are the New Requirements?

The Fiscalization Act introduces mandatory e-invoicing for domestic business-to-business (B2B) transactions, alongside real-time reporting to the Croatian Tax Authority.

Key implementation dates include:

• From January 2026, all VAT-registered businesses must issue and process compliant electronic invoices.
• All businesses and public entities must be capable of receiving e-invoices by January 2026.
• Businesses that are not VAT registered must begin issuing e-invoices from January 2027.
• E-invoices must be submitted in real time to the Croatian Tax Authority, supporting greater tax transparency and more efficient compliance.

Why This Matters

Mandatory e-invoicing is becoming the standard across Europe as governments seek to improve VAT reporting, reduce fraud, and encourage digital business practices.

For Croatian businesses, these changes mean reviewing existing invoicing processes, ensuring systems can generate compliant electronic invoices, and preparing for real-time reporting requirements.

Businesses that begin planning now will be well positioned to meet the new deadlines while benefiting from increased automation, improved invoice accuracy, and more efficient financial operations.

How EDI Plus Can Help

Transitioning to mandatory e-invoicing doesn't have to be complex.

At EDI Plus, we provide reliable e-invoicing solutions that help businesses meet both Croatian and wider European compliance requirements. Whether you're preparing for the January 2026 deadline or planning for future regulatory changes, our team can help you implement a solution that integrates seamlessly with your existing systems.

Prepare for the Change

With implementation deadlines approaching, now is the time to assess your invoicing processes and ensure your business is ready for Croatia's new e-invoicing requirements.

If you'd like to learn more about how EDI Plus can support your transition, contact our team at sales@edi-plus.com.