E-invoicing in Denmark: your deadlines
Public buyers must accept e-invoices, and the Bookkeeping Act now requires certified digital bookkeeping systems for most businesses, with the last waves in 2026. B2B e-invoicing itself stays voluntary. Choose your situation.
Your situation
- 18 April 2019You Public contracting authorities must accept e-invoices that follow the European standard, carried in OIOUBL or Peppol BIS over NemHandel.
- 2022You The Bookkeeping Act is adopted: certified, cloud-ready bookkeeping systems connected to Peppol and NemHandel become the requirement.
- January 2026You The last businesses above DKK 300,000 of turnover join the digital bookkeeping requirement.
- July 2026You In-house bookkeeping systems get their own deadline to meet the same requirements.
FAQ
Questions about the Danish rules
Is B2B e-invoicing mandatory in Denmark?
No. But the Bookkeeping Act requires businesses to run certified digital bookkeeping systems, and those systems must be able to send and receive e-invoices through Peppol and NemHandel.
What is NemHandel?
The national e-invoicing infrastructure behind public procurement. Invoices travel in OIOUBL, the Danish UBL format, or in Peppol BIS.
What does the Bookkeeping Act demand?
Certified, cloud-ready bookkeeping systems connected to Peppol and NemHandel, able to produce the standard bookkeeping file on request. The last groups of businesses joined during 2026.
What does the public sector demand from me?
Since April 2019, contracting authorities accept e-invoices that follow the European standard. Checking an invoice against the standard happens here in the browser.
Is this test official?
No. The test summarizes the published rules, but it does not replace advice on your own situation.