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Denmark e-Invoicing News and Updates

Every Denmark e-invoicing change recorded here: 8 updates, newest first, each cited to its official source. Last change logged 5 October 2026.

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October 2026

DK
Denmark
Technical Update

Guidance for bookkeeping system providers published

Erhvervsstyrelsen published a consolidated guide for providers of digital standard bookkeeping systems covering SAF-T 2.1 from 1 January 2027 and the e-invoicing requirements that apply from 1 March 2027 and 1 January 2028.
5 OctView Denmark e-Invoicing mandate

September 2026

DK
Denmark
New Mandate
B2B

Opt-out e-invoice enrolment order adopted

Erhvervsstyrelsen issued BEK nr. 811 af 22/09/2026 , in force from 29 September 2026, under which providers of registered bookkeeping systems must enrol their business customers for e-invoice receipt in the Nemhandel register unless they decline within four weeks. Existing customers are notified once they confirm their identity with MitID, which must happen by 1 March 2027, and locked CVR master data on outgoing documents follows on 1 January 2028.
28 SeptView Denmark e-Invoicing mandate

August 2026

DK
Denmark
Technical Update

Danish Peppol CIUS 1.17.0 Released

Erhvervsstyrelsen released version 1.17.0 of the Danish CIUS package and 1.2.14 of the Danish Peppol BIS3-Other package, moving to Peppol schematrons 3.0.21 and 3.0.17, for implementation on 17 August 2026.
3 AugSourceView Denmark e-Invoicing mandate

July 2026

DK
Denmark
New Mandate
B2B

Consultation on Opt-Out Registration for E-Invoice Receipt

Erhvervsstyrelsen consulted on amending the order on requirements for digital standard bookkeeping systems so that providers enrol their business customers for e-invoice receipt in the Nemhandel register unless the customer declines within four weeks of being notified, and confirm identities with MitID. The draft proposed 30 November 2026 for the notification duty and 1 January 2027 for the rest; the final order adopted in September 2026 set different dates.
1 JulSourceView Denmark e-Invoicing mandate

May 2026

DK
Denmark
Technical Update

OIOUBL to Peppol Consultation Concluded

Erhvervsstyrelsen published its consultation note after 12 responses. The move away from OIOUBL is confirmed, starting with the invoice, and the format is now referred to as Nemhandel Faktura because the agency will not use naming controlled by private parties. The 18-month migration window stands, with its split between test, phase-in and phase-out still to be agreed with stakeholders. A working group kicked off on 4 June 2026.
27 MaySourceView Denmark e-Invoicing mandate

March 2026

DK
Denmark
Technical Update

Document Strategy for a Single Peppol-Based Invoice Format Sent for Consultation

Erhvervsstyrelsen published its strategy to replace OIOUBL with a single format built on Peppol BIS 4 and Danish extensions under the PINT architecture. The consultation ran from 12 to 27 March 2026. The draft timetable puts a release candidate in the November 2027 deploy window, a final release in May 2028, mandatory support in November 2028 and the end of OIOUBL 2.1 in May 2029. Initial scope covers invoices, credit notes and invoice responses.
11 MarSourceView Denmark e-Invoicing mandate

February 2026

DK
Denmark
Technical Update

SAF-T 2.0 Published with Chart of Accounts Corrections

Erhvervsstyrelsen published SAF-T version 2.0 and a corrected standard chart of accounts. Registered digital bookkeeping systems were then due to support version 2.0 from 1 January 2027 (Erhvervsstyrelsen later set version 2.1); businesses on non-registered systems still only need a version 1.0 header file.
10 FebSourceView Denmark e-Invoicing mandate

January 2026

DK
Denmark
Technical Update

OIOUBL 3.0 Cancelled

Erhvervsstyrelsen confirmed there will be no OIOUBL 3.0 and that it is working towards one standard covering both national and international needs. The adjusted document strategy was presented at Nemhandelsforum on 24 February 2026.
14 JanSourceView Denmark e-Invoicing mandate

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