PEPPOL IN EUROPE
E-invoicing in Denmark
Denmark is among the leaders in the field of digitization. Although business-to-business (B2B) electronic invoicing is not currently required by law, e-invoicing is already widely adopted in the Danish private sector.
Danish regulations encourage the use of structured electronic invoicing to promote efficiency and interoperability. This is enshrined, among other places, in the Danish Accounting Act, which requires companies to use digital accounting systems.
To this end, companies may use a certified accounting system listed in the Danish Business Authority’s (ERST) registry, or their own ERP or accounting system that meets the legal requirements. Among other things, these systems must be capable of sending, receiving, storing, and archiving electronic invoices in structured formats. In addition, SAF-T audit files must be able to be generated upon request, and electronic accounting data must be securely stored for the duration of the statutory retention period.
Important Deadlines
July 1, 2024
Companies subject to the Danish Financial Statements Act that use a registered accounting system must switch to digital accounting as of the start of their next fiscal year.
January 1, 2025
Companies subject to the Danish Financial Statements Act that use a non-registered accounting system must switch to digital accounting as of the start of their next fiscal year.
January 1, 2026
Sole proprietorships with an annual net revenue exceeding 300,000 DKK for two consecutive years (for example, 2024 and 2025) must switch to digital accounting as of the start of their next fiscal year.
Is B2B e-invoicing mandatory in Denmark?
No. There is currently no general legal requirement for businesses to exchange electronic invoices in B2B transactions. However, e-invoicing is already widely used in the Danish private sector.
What does the “Danish Bookkeeping Act” require?
The “Danish Bookkeeping Act” requires companies to use a digital accounting system that is capable of, among other things, sending, receiving, storing, and archiving structured electronic invoices. In addition, the system must be able to generate SAF-T files upon request, and accounting data must be stored securely for the duration of the statutory retention period.
What formats are used for B2B e-invoicing?
In Denmark, the national OIOUBL format and Peppol BIS Billing 3.0, among others, are used for electronic invoicing. OIOUBL is based on the European standard EN 16931. Both formats are tailored to Danish requirements and support a standardized and interoperable exchange of electronic invoices.
