In short

  • Legal basis: the Fiscalisation Act, Zakon o fiskalizaciji (Narodne novine 89/25). B2G invoicing stays under the 2018 public procurement e-invoicing act (NN 94/18), with FINA as the central platform.
  • From 1 January 2026: VAT-registered taxpayers established in Croatia issue, receive and fiscalise eRačun for domestic B2B transactions.
  • Also from 2026: non-VAT-registered income and profit taxpayers, and non-VAT public bodies, must receive eRačun. They must issue from 1 January 2027.
  • Fiscalisation: both sides report each eRačun to the Tax Administration — the issuer at issue, the recipient within five working days.
  • Rejections: reported by the 20th of the following month.

Croatia already had one of the earliest B2G e-invoicing regimes in the EU and, separately, fiscalisation of retail receipts at the till. Fiscalisation 2.0 joins the two ideas: business-to-business invoices become structured electronic documents, and every one of them is reported to the Tax Administration as it is issued and as it is received. Croatia's place among the other national schemes is set out in mandatory e-invoicing in Europe.

Who issues and who receives

The Tax Administration's guidance lists three groups of issuers and the same three groups of recipients:

  1. Taxable persons with seat, residence or habitual residence in Croatia registered for VAT.
  2. Income tax payers from independent activity and profit tax payers established in Croatia but not registered for VAT.
  3. State administration bodies, local and regional government units and budget users listed in the register of budget users and not registered for VAT.
Croatia — Fiscalisation 2.0 obligations
  1. 2026-01-01VAT-registered taxpayers established in Croatia issue, receive and fiscalise eRačun for domestic B2B transactionsin force
  2. 2026-01-01Non-VAT-registered taxpayers in groups 2 and 3 receive and fiscalise eRačunin force
  3. 2027-01-01Non-VAT-registered taxpayers in groups 2 and 3 also issue and fiscalise eRačunadopted

Source: Croatian Tax Administration guidance on the Fiscalisation Act (NN 89/25). The Tax Administration states that in 2026 only VAT-registered taxpayers are obliged to issue and fiscalise eRačun, and that from 1 January 2027 all the listed taxpayers must.

The obligation is domestic. The issuing and fiscalisation duty in B2B applies to domestic transactions between the taxpayers listed above. Cross-border supplies, and supplies to persons outside the three groups, are invoiced in another permitted form.

Fiscalisation: what it is and when it happens

Fiscalisation of an eRačun is not a stamp on the invoice. The Tax Administration describes it as an automated process that extracts a prescribed set of data from each issued and received eRačun into a fiscalisation message sent to the Tax Administration. It runs separately from the exchange of the invoice, and although the Tax Administration confirms receipt of the message, that confirmation is not visible on the eRačun.

Fiscalisation deadlines, per the Tax Administration's guidance
EventWhoDeadline
eRačun issuedIssuerAt the moment of issue
eRačun issued by self-billingIssuerNo later than five working days after issue
eRačun receivedRecipientNo later than five working days from receipt (Article 48(4))
eRačun rejectedRecipientReport rejections made in a month by the 20th of the following month (Article 52(1))

Two consequences are easy to miss. First, the recipient is a reporting party in its own right: a business that receives eRačuni but has not set up fiscalisation of incoming invoices is out of compliance even if it never issues one. Second, the deadline for fiscalising receipt starts at receipt, not at approval — a long internal approval workflow does not extend it. That puts pressure on the receiving process described in accounts payable redesign.

Access points, intermediaries and the AMS

Exchange and fiscalisation run through an access point (pristupna točka): either the taxpayer itself, if it meets all the technical conditions, or an information intermediary (informacijski posrednik) providing the service to others. Status is not automatic. Existing providers had to submit the prescribed documentation, implement the technical specifications and pass conformance testing; those that pass are published on the Tax Administration's list of information intermediaries.

The intermediary is, in practice, the party that communicates with the Tax Administration's AMS — the digital address directory (adresar metapodatkovnih servisa) used to find where a recipient receives eRačun. The guidance's description of self-billing shows the familiar four-corner pattern: the buyer's access point checks the seller in the AMS, retrieves the seller's access point and sends an AS4 message with an SBDH envelope. The model will be recognisable to anyone who has read four-corner versus five-corner models.

Authorisations are given in FiskAplikacija, accessed through ePorezna. The guidance contains a cautionary case: a business authorised its intermediary to receive eRačuni but not to fiscalise them, so received invoices went unreported until the settings were corrected.

When the recipient has no address

If the recipient cannot be found in the AMS, the eRačun is not considered issued. The issuer issues the invoice in another permitted form and reports the supply through eIzvještavanje (e-reporting), following the Tax Administration's instructions for unavailable addresses. A customer master without reliable identifiers will generate a stream of these exceptions.

MIKROeRAČUN

MIKROeRAČUN is the Tax Administration's free application, in which the Tax Administration itself is the access point. According to the guidance it receives eRačun from 1 January 2026, issues them from 1 January 2027, fiscalises both and keeps them for the retention periods. It is available only to issuers and recipients not registered for VAT and not public contracting authorities — a VAT-registered business cannot use it and needs an intermediary or its own access point.

B2G stays where it was

B2G invoicing continues under the Act on electronic invoicing in public procurement (NN 94/18), which transposed Directive 2014/55/EU, with FINA as the central platform for receiving and exchanging public-sector eRačun. The Tax Administration notes that those eRačuni must still be fiscalised where the issuer and recipient are covered by the Fiscalisation Act.

Penalties

The guidance describes failing to issue an eRačun when there is an obligation to do so as the most serious offence under Article 71 of the Fiscalisation Act, carrying high fines. A recipient whose supplier keeps sending paper or e-mailed invoices is not required to refuse the goods or the invoice, but is directed to report the supplier's failure to the Tax Administration.

What to check now

Fiscalisation 2.0 health check
  1. Scope by entity: VAT-registered and established in Croatia means issuing, receiving and fiscalising since 1 January 2026.
  2. Both directions authorised: confirm in FiskAplikacija that the intermediary holds authorisation for fiscalisation of incoming and outgoing eRačun, not only exchange.
  3. Five working days: measure the time from receipt to fiscalisation of incoming invoices, not from receipt to approval.
  4. Monthly rejection report: make sure rejections are reported by the 20th of the following month.
  5. AMS exceptions: count invoices that could not be issued as eRačun for lack of an address, and fix the master data behind them.
  6. 2027 counterparties: list customers and suppliers who are not VAT-registered; they start issuing on 1 January 2027.