Implementation status

We're finishing off implementation for Croatia's B2B e‑invoicing as part of our programme to expand Global E‑invoicing Compliance coverage across Europe.

Note: B2C fiscalisation flows are currently out of scope of ecosio's solution; scope focuses on B2B and B2G e‑invoicing and related e‑reporting.

Why Croatia? What you must know

Croatia is moving towards structured B2B e‑invoicing, with country‑specific validations, transmission and archiving expectations. In practice, ERPs need stable mappings, proactive regulatory updates and robust error handling to avoid rejections and downstream finance issues.

ecosio provides a single managed platform that unifies compliance operations, change management and deep ERP integration, resulting in simpler roll‑outs, fewer moving parts and lower risk across countries.

Timeline

ecosio is able and available to get you compliant in Croatia, upon the mandate deadline of 1 January 2026, as we have been officially certified as an information intermediary for Croatia's e-invoicing system, enabling compliant B2B and B2G e-invoice exchange, real-time fiscalisation and eReporting support.

Why ecosio? Why now?

• Compliant B2B and B2G e‑invoice exchange using UBL 2.1 with HR CIUS

• Near real‑time fiscalisation and e‑reporting support

• Multi‑country readiness: A single managed compliance operations platform across the globe reduces integration effort and vendor sprawl.

• Deep ERP integration: Production‑grade patterns minimise internal engineering work and invoice errors.

• Platform, network and service: We run mappings, monitoring and change management to prevent operational drift.

• Lower risk, faster value: Proactive updates and strong validation help prevent rejections and finance disruption.

We are now in the final days until the next deadline of 1 January 2026 for VAT‑registered taxpayers. This date introduces mandatory exchange and fiscalisation of domestic B2B and B2G e‑invoices and e‑reporting flows. Given the tight timeline until the 1 January 2026 mandate, engagement with country e-invoicing regulations is now critical to assess scope, align integration requirements and ensure a smooth go‑live.

Non‑compliance risks:

• Invoice rejection and cash‑flow impact

• Tax penalties, late‑payment interest and audit exposure

• Blocked VAT deduction and increased reconciliation workload

Croatia e‑invoicing mandate timeline:

• 1 January 2019 — B2G e‑invoicing mandatory

• 1 January 2026 — Real‑time fiscalisation added

• 1 January 2026 — B2B mandatory for domestic transactions of VAT‑registered taxpayers

• 1 January 2027 — B2B mandatory for domestic transactions of non‑VAT registered taxpayers.

Need more information? Read our Croatia country page!

Need coverage in Croatia or running a multi‑country programme? Contact your ecosio representative so we can align timelines and scope.

The ecosio Product Team