Law subject related
The Bookkeeping Act requires businesses to adopt either certified digital bookkeeping software approved by the Erhvervsstyrelsen (ERST, the Danish Business Authority) or develop custom solutions that comply with the law. This comprehensive digital shift includes all accounting activities, with a specific emphasis on invoicing.
To facilitate this transition, B2B e-invoicing has become mandatory. Companies can choose to use the public NemHandel platform or the Peppol network for their invoicing needs. Invoices must adhere to the Peppol BIS 3.0 (EN16931-compliant) standard or the local OIOUBL format, which is set to receive a 3.0 update to ensure compliance with EN16931, albeit delayed by six months.
The first phase of the Bookkeeping Act took effect on July 1, 2024, impacting all companies currently required to submit an annual report under the Annual Accounts Act, specifically medium and large enterprises already using certified bookkeeping systems. From this date, these companies must ensure all accounting processes, including invoicing, are conducted digitally, starting from the first day of their next financial year.
The subsequent implementation phases are scheduled as follows:
January 1, 2025: The Act will extend to all companies required to submit an annual report under the Annual Accounts Act that use self-developed software.
January 1, 2026: The Act will apply to personally owned companies with an annual net turnover exceeding DKK 300,000 for two consecutive years (e.g., 2024 and 2025).
No additional phases are planned, meaning very small companies remain outside the scope of the Bookkeeping Act.
Other news from Denmark
Denmark Launches Consultation on Transition to Unified Peppol-Based E-Invoicing
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Author: Ivana Picajkić
Denmark has launched a public consultation on a new e-invoicing strategy proposing a shift from the national OIOUBL format to a single Peppol-based standard (Nemhandel BIS 4) to reduce complexity and align with European frameworks. The transition will occur gradually until mid-2029, when Peppol will become mandatory and OIOUBL fully phased out. The Danish Business Authority has launched a public c... Read more
Denmark Introduces New E-Invoicing Standard and Roadmap
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Author: Ivana Picajkić
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Already subscriber? LoginDenmark to Replace OIOUBL with NemHandel BIS 4
Denmark
Author: Ivana Picajkić
Denmark will gradually replace the OIOUBL 2.1 e-invoicing format with NemHandel BIS 4, a new Peppol-based standard aligned with EN-16931 and future EU ViDA requirements, with migration planned between 2028 and mid-2029. On February 24, 2026, the Danish Business Authority announced that the national e-invoicing format OIOUBL 2.1 will be gradually replaced by NemHandel BIS 4, a new format based on t... Read more
Denmark Launches SAF-T 2.0
Denmark
Author: Ivana Picajkić
Denmark has introduced SAF-T 2.0, an updated Standard Audit File for Tax that standardizes transaction-level accounting data and improves transparency, interoperability, and automated data exchange between businesses, auditors, and public authorities. From 1 January 2027, registered digital accounting systems must support SAF-T 2.0, supporting future automated reporting and data-driven compliance... Read more
Denmark: Government to Study Possible VAT Cut on Food from 2028
Denmark
Author: Ivana Picajkić
Denmark has reached a political agreement to analyse VAT-based measures to reduce food prices from 2028, including either lowering VAT on all food or removing VAT on fruit and vegetables, with DKK 6 billion per year earmarked for one option. No changes apply yet, as the government will complete its analysis and consultations by the second half of 2026 before deciding whether—and how—to implement a... Read more