Croatia has amended the rulebook for fiscalizing invoices issued to final consumers. The changes take effect on 1 January 2027. If you issue consumer receipts in Croatia, two changes matter most: the digital certificate you use for fiscalization, and the payment methods that the self-service rule covers.
Certificates must contain your OIB
From 1 January 2027, the digital certificate used for fiscalization must contain the business's OIB, the Croatian tax identification number. The certificate has to come from a trust service provider on the trusted list.
The amendment also requires a DEMO certificate with the OIB for testing. Plan for this before the change date, not after. A certificate without the OIB will not work once the rule applies.
Self-service payments are covered
The rule for self-service sales used to cover only SMS payments. It now also covers card payments, mobile-app payments, and other similar payment methods. If your consumer checkout takes card or app payments through a self-service flow, check how those sales are fiscalized.
Other changes
The rulebook also changes the data the Croatian Tax Administration keeps, and it ties the environment requirements to the Tax Administration's technical specification. Read the full text for the details that apply to your setup.
Primary text
- Amendment to the rulebook on fiscalization of invoices to final consumers, Narodne novine 97/2026, published 2 September 2026: narodne-novine.nn.hr. Article 13 sets the entry-into-force date of 1 January 2027.
Next step
Read the developer documentation and run your Croatian consumer receipts through the test environment before 2027.
Start with one workflow, not a whole rewrite
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