Denmark closes consultation on shift from OIOUBL to Peppol BIS
Denmark's Business Authority closed a public consultation on migrating from OIOUBL to Peppol BIS 4. Twelve responses backed the shift but flagged concerns about cost, complexity, and a six-month transition window deemed too short.
Denmark’s Erhvervsstyrelsen closed its public consultation on moving from OIOUBL to Peppol BIS as the country’s common e-invoice format. Stakeholders support the change for EU alignment but worry about implementation costs and a tight timeline before the ViDA cross-border obligation in July 2030.
Denmark’s Erhvervsstyrelsen (Danish Business Authority) published its consultation note on 27 May 2026, closing the public feedback period on the country’s planned shift from OIOUBL to Peppol BIS. The consultation ran from 11 March to 27 March 2026 and drew 12 responses with constructive input on the migration path.
Broad support, but with reservations
Stakeholders broadly back harmonisation on Peppol BIS 4, citing the need for international compatibility ahead of EU e-invoicing rules. The migration will start with the invoice document type.
However, respondents raised three main concerns:
- Complexity and cost: Danish-specific requirements and extensions risk driving up implementation costs and creating uncertainty for businesses.
- Functionality loss: Some industries rely on features in OIOUBL 2.1 that must not disappear in the new format.
- Transition speed: A six-month phase-in window is too short. Respondents called for a more detailed migration plan.
Next steps and timeline
Erhvervsstyrelsen acknowledged the tension between keeping things simple and meeting local needs, and between moving fast and doing it right. The authority must complete the transition before the ViDA cross-border e-invoicing obligation takes effect on 1 July 2030.
The project “Én fælles e-faktura specifikation” (One Common E-Invoice Specification) will now drive the work forward. It kicked off on 4 June 2026 with a structured public-private collaboration model to balance the competing demands.