QR codes on fiscal receipts as post-purchase digital infrastructure: the Romanian legal context, comparative practice, and service design opportunities

Abstract

The introduction of Quick Response (QR) codes on fiscal receipts establishes a new interface between tax compliance, retail data infrastructures, and post-purchase digital services. In Romania, the reform adopted in June 2024 requires selected receipt identifiers to be printed both in human-readable form and as a QR code. The regulatory environment, however, remains transitional: the obligation exists, enforcement is phased, and legacy fiscal devices may still require adaptation where technical impossibility is confirmed. Against this background, the article argues that the Romanian receipt QR code should be interpreted primarily as a transaction identifier rather than as a carrier of proprietary business data. The study combines legal analysis, a comparative examination of official practices from Portugal, Croatia, India, and Saudi Arabia, and a design-oriented synthesis of service scenarios. On this basis, it identifies twelve application domains, including warranty activation, returns, loyalty enrollment, expense management, repair intake, recall notification, and sustainability analytics. The analysis also examines structural constraints, notably restricted payload, dependence on merchant integration, privacy and cybersecurity obligations, fragmented device readiness, and the risk of proprietary lock-in. The article concludes that Romania already possesses the legal-technical foundations for a broader post-purchase digital infrastructure, but that the institutional and commercial value of this infrastructure will depend on interoperability, governance quality, and the credibility of implementation arrangements.