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E-invoicing in Croatia requires domestic B2B invoices to be issued as structured electronic documents through access points and authorised information intermediaries, using UBL 2.1 aligned to the Croatian CIUS. From 1 January 2026, Croatia mandates domestic B2B e-invoicing for VAT-registered businesses under Fiscalisation 2.0, with non-VAT-registered businesses following from 1 January 2027. Businesses must issue and receive structured e-invoices in UBL 2.1 aligned with Croatia's CIUS, exchange them via secure access points and authorised information intermediaries, and separately submit fiscalisation and e-reporting data to the Croatian Tax Administration in the Tax Authority's dedicated XML formats. Paper invoices are being phased out, though they remain permitted for cross-border transactions. Whatever the local mechanism, the invoice still has to come out of your ERP correctly — and in our experience that is where projects actually succeed or fail. ROSTAN builds the integration into Oracle EBS and Fusion Receivables so compliance is generated from the invoice the business already raises.
Dates reported from published guidance. Confirm your own obligation with your tax adviser — ROSTAN implements the ERP integration and does not provide tax or legal advice.
From 1 January 2026, Croatia mandates domestic B2B e-invoicing for VAT-registered businesses under Fiscalisation 2.0, with non-VAT-registered businesses following from 1 January 2027. Businesses must issue and receive structured e-invoices in UBL 2.1 aligned with Croatia's CIUS, exchange them via secure access points and authorised information intermediaries, and separately submit fiscalisation and e-reporting data to the Croatian Tax Administration in the Tax Authority's dedicated XML formats. Paper invoices are being phased out, though they remain permitted for cross-border transactions.
EDICOM — Croatia mandatory B2B e-invoice 2026The invoice you exchange with your customer is UBL 2.1 under the Croatian CIUS. The data you report to the Tax Administration uses the Tax Authority's own XML formats. They are separate deliverables, and a project that builds only the first is half done.
Invoice data is transmitted to the Tax Administration as it happens rather than in a periodic return. That rules out a month-end batch and makes failure handling part of the design rather than an afterthought.
VAT-registered businesses were in scope from January 2026; everyone else follows from January 2027. Groups with mixed entity types in Croatia will have two dates internally.
Paper remains permitted for cross-border transactions while domestic B2B moves to structured invoicing — so the domestic and export flows out of the same ERP need different treatment.
Statutory e-invoicing is the single largest workload on our own Oracle service desk. These are the causes we see behind rejections, wherever the mandate is.
Tell us which entities are in scope and what you run — Oracle EBS, Fusion or something else — and we will tell you what the integration actually involves for your setup.
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