Croatia Fiscalization 2.0 (2026): Who Must Issue e-Invoices?

Croatia Fiscalization 2.0 is not a blanket requirement for every foreign supplier invoicing a Croatian customer. It is a domestic, entity-specific control regime: VAT-registered taxpayers with a Croatian seat, residence or habitual residence have issued and received structured e-invoices for covered domestic transactions since 1 January 2026. The correct starting point is the entity and transaction profile, not customer location alone.

Finance leaders must therefore test the entity and transaction separately. A foreign-owned Croatian company can be covered, while a cross-border invoice sent to Croatia is not automatically captured. Branches, fixed establishments and non-resident VAT registrations deserve a separate legal analysis: a Croatian VAT number alone does not prove that a foreign entity has a Croatian registered office for this mandate. Confirm the scope before choosing a fiscalization and archiving workflow.

How Croatia Fiscalization 2.0 changes domestic invoicing

The Fiscalization Act, published in Official Gazette NN 89/2025, introduced its principal e-invoice provisions from 1 January 2026. The regime applies to e-invoices arising from domestic transactions and combines structured invoice exchange with fiscalization and related reporting to the Croatian Tax Administration.

This is more than sending an invoice through an electronic channel. A PDF attached to an email is not, by itself, a compliant Croatian eRačun: the invoice must be structured and machine-processable. Exchange uses access points, communication between access points requires AS4, and covered invoices must conform to the applicable EU e-invoicing standard.

The regime must also be distinguished from Croatia’s pre-existing public-procurement e-invoicing arrangements. FINA’s B2G guidance remains relevant to public-sector exchange, whereas Fiscalization 2.0 introduces two-sided fiscalization for covered domestic invoices. It should likewise be analysed separately from the B2C fiscalization system rather than treated as a replacement for every existing fiscal workflow.

Which entities and transactions are affected

Ownership is not the legal trigger. A d.o.o. owned by a foreign group can be covered because of its Croatian establishment and tax status, not because its shareholder is domestic or foreign. Under the Act and the Tax Administration’s eRačun guidance, a VAT-registered taxpayer with a seat, residence or habitual residence in Croatia must issue and receive e-invoices for covered domestic transactions.

The domestic limitation matters for regional sales operations. Paper or another acceptable invoice format may continue to be used in EU and wider international markets where the Croatian domestic mandate does not apply. Sales teams should not configure customer country as the sole scope trigger: sending an invoice to a Croatian address does not establish that the underlying flow is a covered domestic transaction.

A Croatian VAT number should not be treated as conclusive evidence of mandate coverage. Grant Thornton’s legal commentary identifies foreign-company branches, fixed establishments and VAT-only foreign registrations as generally outside the new e-invoicing mandate’s establishment criterion. This is secondary professional commentary rather than an authority ruling for a specific complex arrangement. Groups should document the legal entity, establishment, VAT status, contracting party, supply flow and transaction type, then obtain Croatian advice instead of applying one assumption across all entities.

Invoice delivery is only one part of compliance

For each covered invoice, both sides have fiscalization duties. The issuer normally fiscalizes at issuance, while the recipient must fiscalize within five working days of receipt. Commercial delivery is therefore only one stage: successful transmission does not establish that fiscalization, subsequent event reporting and retention obligations have been completed.

Each covered invoice line must also be associated with a six-digit Croatian KPD classification code. This makes classification a master-data issue rather than a field that accounts payable or accounts receivable can safely add at the end of the process. Businesses should map their catalogues against Croatian KPD and CLASUS resources, document the mapping basis and establish controls for new products, bundled services and classification changes.

Post-invoice events create additional controls. Recipients report rejected e-invoices, while issuers report collections by the twentieth day of the following month. Issued and received covered e-invoices must then be preserved in their original form for six years after the end of the year in which they were issued. These requirements appear in the Act’s e-invoice, fiscalization and retention provisions.

The operational implication is that Fiscalization 2.0 is an accounts-receivable, accounts-payable, tax-control and records-management change, not merely an IT interface project. Generating a structured invoice is insufficient if recipient fiscalization, rejection reporting, collection data or original-form retention is missing.

Latest October 2026 changes: MIKROeRAČUN and business-process codes

On 21 October 2026, the Croatian Tax Administration announced that its free MIKROeRAČUN application now supports issuing and fiscalizing e-invoices, adding to its existing receipt and rejection functions. This prepares eligible Croatian taxpayers outside the VAT register for mandatory issuing from 1 January 2027. The new software capability does not change the statutory 2027 phase-in date, and it is not a universal free solution for VAT-registered or non-resident suppliers.

An official update on 20 October 2026 clarifies how to select the business-process identifier for e-invoice issuance and exchange, including advances, recurring contractual deliveries and invoice corrections. Businesses should test these values together with the mandatory six-digit KPD 2025 product/service classification. XML generation and successful transmission do not, on their own, establish correct tax treatment.

Integration choices, timing and control risks

A covered taxpayer can operate its own access-point integration or use an approved information intermediary. Direct integration gives the business more internal control but requires it to manage technical connectivity, certificates, structured data and operational support. An intermediary can reduce that infrastructure burden, but outsourcing transmission does not transfer the taxpayer’s responsibility for accurate content, timely fiscalization, event reporting or retention.

No verified neutral comparison of intermediary pricing, implementation charges or service levels was supplied. Procurement teams should request comparable proposals covering onboarding, certificate management, volume charging, rejection handling, availability, archive functionality, data export, incident response and exit arrangements. Provider status and implementation routing should be checked through the Croatian Tax Administration’s fiscalization information and approved intermediary resources.

The first hard date has passed for covered Croatian VAT taxpayers: their domestic issue-and-receive duties began on 1 January 2026. The next stated statutory milestone is 1 January 2027, when covered non-VAT entities move from the principal receipt phase to an issuance duty. Groups trading with these entities should coordinate master data, routing and acceptance processes before that transition.

The Act provides penalties for specified e-invoice, fiscalization and software-support failures. Practical control risks include incorrect scope assumptions, treating PDFs as compliant e-invoices, incomplete KPD mapping, missing the recipient’s five-working-day fiscalization period, disconnected collection data and retaining only a visual copy instead of the required original form.

Three practical scope examples for international groups

Use these examples to triage the issue, not as a binding tax ruling. See our Balkans-to-EU export readiness guide for complementary customs and market-entry checks.

A five-step workflow decision for finance and tax leaders

1. Build an entity register. Record each Croatian company, branch or registration, including its legal establishment, VAT status, tax status and role in issuing or receiving invoices. Do not use foreign ownership as the scope test.
2. Map transaction flows. Separate covered Croatian domestic transactions from cross-border supplies, public-sector invoicing and B2C flows. Record the basis for treating each flow as inside or outside the relevant regime.
3. Design the complete control chain. Assign responsibility for structured invoice creation, KPD coding, access-point exchange, issuer and recipient fiscalization, rejection reporting, collection reporting and six-year original-form preservation.
4. Select infrastructure deliberately. Compare an internal access point with approved intermediaries using technical, control, continuity and data-exit criteria, not headline price alone. Define how failures and manual exceptions will be identified.
5. Escalate uncertain establishment cases. Before excluding a branch, fixed establishment or non-resident VAT registrant, obtain written Croatian tax advice based on the actual contracts, supply chain and invoicing flow.

Future clarification should be monitored through the Croatian Tax Administration’s implementation guidance and intermediary information. Unless the authorities resolve difficult establishment cases expressly, multinational groups should preserve uncertainty in their scope memoranda rather than presenting a professional interpretation as an official ruling.

The decisive management question is therefore not simply whether a business can create an electronic invoice. It is whether each Croatian entity and domestic transaction has been classified correctly and connected to a controlled process that continues through two-sided fiscalization, collection or rejection reporting and compliant archiving.

Commercial support: InspiraBusiness supports market validation and partner identification; Croatian licensed tax professionals should advise on filing obligations.