E Invoicing in Croatia
Get Ready for Fiscalization 2.0 with Melasoft
Starting January 1, 2026, all businesses in Croatia must switch to e-invoicing for B2B, B2C, and B2G transactions. Paper invoices will no longer be valid.
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Invoices must follow a structured format, be delivered via the Peppol network, and require real time reporting to the Croatian Tax Administration (Porezna uprava)
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With experience across 30 countries and strong SAP Add On know how, Melasoft ensures your transition to e-invoicing is fast and reliable.
What Is Fiscalization 2.0? 
Croatia is launching Fiscalization 2.0, a national reform that will: 
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Make e-Invoicing mandatory for all B2B, B2G, and B2C transactions 
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Require real-time reporting of invoices to the Tax Administration 
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Use the Peppol network for secure, standardized document exchange 
From 2026, paper invoices will be a thing of the past. Businesses must transition to a fully digital invoicing workflow, or risk non-compliance
Legal Framework at a Glance 
The Croatian Ministry of Finance introduced a new Fiscalization Act to enforce structured, real-time e-invoicing: 
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Adopted in 2025, entering into force on September 1, 2025 
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Based on EU Directive 2014/55/EU and aligned with EN 16931 standards 
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Allows mandatory B2B e-invoicing following Croatia’s EU VAT Directive derogation request (Art. 218 & 232) 
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Enforces digital signature, structured formats, and electronic archiving 
This Act combines e-invoicing and tax control into a unified legal obligation. 
Croatia’s E Invoicing Implementation Schedule
Sep 1, 2025 
Law becomes effective. National sandbox for e-invoice testing opens. 
Jan 1, 2026 
Mandatory e-Invoicing begins for all VAT-registered businesses. 
Jan 1, 2027
Mandatory for all businesses, including non-VAT and micro-entities. 
How Croatia Plans to Implement Peppol and Reporting
As of today, Croatia has not officially confirmed whether it will use the 4-Corner or 5-Corner model. However: 
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Current technical plans suggest a Peppol 4-Corner model for invoice exchange 
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Real-time reporting obligations to the Tax Administration may mirror some 5-Corner behavior, but are expected to be handled via parallel APIs or via the Access Points 
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Until further technical specifications are published, businesses should prepare for: 
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Peppol-based invoice delivery (4-Corner) 
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Real-time reporting obligations (through APIs or Peppol integration) 
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Melasoft continuously monitors regulatory updates. We'll align your systems with the final published specifications whether it’s 4-Corner, 5-Corner, or a hybrid approach
Who Must Comply? 
From January 2026
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All VAT-registered companies 
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Public entities, municipalities, freelancers 
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B2C sales must be fiscalized, even if paid by card or bank 
​From January 2027
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Non-VAT small businesses 
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Sole traders and exempted micro-entities 
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100% of businesses must issue structured e-invoices
Why Act Now? 
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Test phase starts September 2025 
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Compliance required from January 1, 2026 
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Late integration may cause invoice rejections or tax penalties 
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Early adopters gain market trust and advantage 
Melasoft: Your Trusted E-Invoicing Partner in Croatia
Melasoft is a certified Peppol Access Point, a recognized SAP Partner, and ISO27001 certified provider. We deliver secure, scalable, and fully compliant e-invoicing solutions tailored to Croatia’s Fiscalization 2.0 requirements.
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With us you get
• Peppol certified connectivity
• Croatian CIUS schema and tax rules built in
• Real-time reporting and API integration
• Developer-ready documentation and toolkits
• Full support from testing to go live
• White label or embedded solution options
