Denmark Phases Out OIOUBL in Favor of NemHandel BIS 4
In a significant shift towards modernizing its e-invoicing framework, the Danish Business Authority recently announced that it will phase out the national e-invoice format OIOUBL 2.1 in favor of the more advanced NemHandel BIS 4 format.
This transition, set to initiate on February 24, 2026, marks a critical step in aligning Denmark's e-invoicing practices with international standards and upcoming EU directives, particularly the ViDA (VAT in the Digital Age) requirements.
The Rationale Behind the Change
The decision to move away from OIOUBL 2.1 stems from a comprehensive year-long analysis conducted by the Danish Business Authority. This analysis revealed the necessity of adopting a more standardized approach to e-invoicing, especially in light of the evolving regulatory landscape in Europe. The cancellation of OIOUBL 3 further underscores the commitment to streamline and enhance the efficiency of invoice processing in Denmark.
NemHandel BIS 4 is designed to adapt the well-established Peppol BIS 4 standard, ensuring that Danish e-invoicing practices are not only compliant with current EU regulations but also internationally recognized. This move is expected to facilitate transactions with cross-border trade partners and enhance the overall efficiency of the invoicing process.
Migration Timeline
The migration from OIOUBL 2.1 to NemHandel BIS 4 will take place over an extended period, from 2028 through mid-2029. During this time, businesses will need to prepare for the transition by updating their systems and processes to accommodate the new format. A release candidate for the NemHandel BIS 4 is anticipated in 2028, followed by detailed timelines for the final release and full implementation.
Implications for Businesses
For businesses in Denmark, this transition presents both challenges and opportunities. Companies will need to invest in training and technology upgrades to ensure compliance with the new standards. However, the long-term benefits of adopting a standardized format include reduced administrative burdens, enhanced data accuracy, and improved interoperability with international partners.
As the migration date approaches, the Danish Business Authority is expected to provide additional resources and guidance to support businesses in making this transition seamless and effective.
Conclusion
The phaseout of OIOUBL 2.1 and the transition to NemHandel BIS 4 represents a pivotal moment for Denmark's e-invoicing landscape. By aligning with international standards and EU requirements, Denmark positions itself for a more efficient and dynamic future in digital commerce. As businesses begin to prepare for this significant shift, the emphasis on innovation and compliance will pave the way for a more integrated and competitive marketplace.
How Can KGT Support You?
KGT has created an SAP-integrated e-invoicing add-on solution for Denmark, featuring outbound and inbound functionalities to meet tax reporting requirements. This add-on includes a data extractor and a cockpit for generating e-invoicing files in the legal format and controls before submission. When SAP DRC launched the Danish e-invoicing solution as part of its e-document offerings, KGT emerged as a leading consultancy firm for SAP DRC and tax services. Recognized as an SAP DRC partner for Danish e-invoicing services, KGT is one of SAP's recommended implementation partners for this solution. We provide comprehensive support, including installation, configuration, customization, and training, to help you maximize the long-term value of your SAP DRC investment.
KGT is an SAP partner for PE services and an SAP Build partner, and to become an SAP partner, strict due diligence requirements must be met, including having certified SAP consultants. You can find us at: https://partnerfinder.sap.com/profile/0001925409
