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E-Invoicing in Norway

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Country Situation

General Description

Norway is accelerating its digital economy. Transitioning from a highly adopted voluntary framework to a strict legal requirement, the Norwegian government is amending the Bookkeeping Act to make Business-to-Business (B2B) electronic invoicing mandatory. With strict deadlines approaching, relying on PDF invoices and manual accounting will soon result in financial penalties and severely disrupted cash flows.

To give businesses time to adapt their ERP systems, the Norwegian Ministry of Finance has structured the rollout into two phases:

  • 1 January 2027: All businesses subject to the Norwegian Bookkeeping Act must issue structured e-invoices for domestic B2B transactions to businesses subject to bookkeeping obligations that are registered in the Electronic Recipient Register (ELMA).

  • 1 January 2030: All in-scope businesses must have fully digital accounting systems capable of automatically receiving and processing structured e-invoices.

Navigating ELMA registrations, Peppol Access Point integration, and UBL 2.1 mapping doesn't have to drain your IT resources.

As a certified Peppol Access Point provider and expert in global e-invoicing mandates, ecosio integrates directly into your existing ERP system. We offer a fully managed service, handling the mapping to EHF 3.0, managing Peppol routing, and ensuring your business stays ahead of regulatory updates in Norway and across Europe.

FAQs

Who exactly is affected by these new rules?
The mandate applies to all domestic and foreign entities that have a statutory accounting obligation under the Norwegian Bookkeeping Act. This crucially includes foreign companies that are VAT-registered in Norway or operate a Norwegian branch (NUF). A potential exemption is expected for small sole proprietorships with an annual turnover below 50,000 NOK that do not have formal accounting or VAT reporting duties.
Can I still send PDF invoices via email after 2027?
Yes, if the recipient is not registered in the Electronic Recipient Register (ELMA), invoices may continue to be sent in PDF format until January 1, 2030.
What is the Norwegian B2B e-invoicing mandate and when does it start?
The mandate is a major legislative update to the Norwegian Bookkeeping Act, requiring businesses to transition away from manual or paper-based invoicing toward structured electronic data. The government has structured the rollout into two critical deadlines:
- 1 January 2027: Mandatory issuance of B2B e-invoices for domestic transactions if the receiver is registered in the Electronic Recipient Register (ELMA).
- 1 January 2030: Mandatory obligation to implement an electronic accounting system capable of automatically receiving e-invoices and maintaining fully digital bookkeeping.
What technical format and network must I use?
Companies must transmit billing documents as structured XML data using the Elektronisk Handelsformat (EHF 3.0), which is natively based on the Peppol Universal Business Language (UBL 2.1) schema.

Norway operates on a decentralized post-audit model, meaning documents are routed securely through the Peppol eDelivery Network rather than a centralized government portal. To successfully route an invoice, the receiving business must be registered in the ELMA registry, Norway's national Peppol directory.
How does this mandate impact cross-border transactions?
The strict domestic mandate applies to transactions where both the supplier and buyer fall under the Norwegian Bookkeeping Act. Pure export invoices sent to foreign buyers without a Norwegian presence are not legally compelled by this mandate.
Do I need to completely replace my current ERP system to comply?
Not necessarily. While the law requires you to use an electronic accounting system that enables the production and automated processing of electronic invoices, you do not always need to rip and replace your core ERP. By partnering with a certified Peppol Access Point provider like ecosio, we integrate directly with your existing software. We handle the complex translation of your standard ERP data into the mandated EHF 3.0 XML format and securely manage all Peppol routing and ELMA lookups on your behalf.

Country Specs

Mandate StatusAnnounced
Model TypeInteroperability / Post-Audit
Government EntitySkatteetaten
FormatsUBL 2.1
Infrastructure / PlatformPeppol with national SMP (ELMA)
E-signature RequiredNo
Key Deadlines1 January 2027: All businesses subject to the Norwegian Bookkeeping Act must issue structured e-invoices for domestic B2B transactions to businesses subject to bookkeeping obligations that are registered in the Electronic Recipient Register (ELMA).

1 January 2030: All bookkeeping-obligated businesses must be capable of automatically receiving and processing e-invoices. Furthermore, maintaining manual or paper-based ledgers will be prohibited; fully digital bookkeeping systems will be legally required.
AR MandatoryCurrently voluntary via Peppol Network. By January 2027, issuance of e-invoices is mandatory if receiver registered in ELMA.
AP MandatoryCurrently voluntary via Peppol Network. By January 2030, reception of e-invoices is mandatory.
Peppol AvailableYes
Domestic TransactionsYes. Mandatory starting January 2027
Cross-border TransactionsNo
Archiving Period5+1 years
Archiving AbroadElectronic archiving abroad is allowed within the EEA, the UK, and Switzerland upon written notification to the Norwegian Tax Administration, provided the material remains electronically accessible and printable from Norway at all times. Storage outside of these designated jurisdictions requires explicit prior special permission.

Country Situation

General Description

Norway has one of the most mature electronic invoicing frameworks in Europe and has mandated structured e-invoicing for all transactions with the public sector. The Norwegian model is fully aligned with the European standard EN 16931 and is based on the Peppol network, using the national EHF 3.0 (Elektronisk Handelsformat) format.

All public authorities can only receive structured e-invoices, and all suppliers must issue invoices electronically when invoicing the public sector.

Together with the B2G mandate, Norway has taken concrete steps towards introducing mandatory B2B e-invoicing. While B2B e-invoicing is currently voluntary, adoption of EHF/Peppol is already widespread across the private sector.

FAQs

Does the B2G mandate apply to all public entities?
Yes. The obligation covers:
- Central government bodies
- Regional authorities
- Municipalities
- Other public contracting authorities subject to public procurement rules

All of these entities must be able to receive Peppol-compliant e-invoices.
Who is required to send e-invoices?
Any supplier (regardless of size, industry or country of establishment) must send compliant e-invoices when invoicing a Norwegian public authority.
Is e-invoicing mandatory for B2B transactions?
No, not yet. B2B e-invoicing is currently voluntary, although widely used.

However, Norway is currently reviewing a mandatory B2B e-invoicing, with a proposed phased introduction from 2027 and 2030, subject to final legislation.
Which e-invoice format must be used?
The mandatory format is EHF 3.0, Norway’s national implementation of Peppol BIS Billing 3.0 and EN 16931. Other formats, including PDF, are not accepted for B2G transactions.
Is the Peppol network mandatory?
Yes. For B2G transactions, invoices must be exchanged via the Peppol network. Direct bilateral transmission outside Peppol is not permitted for public-sector invoicing.
Are credit notes and corrective invoices included?
Yes. Credit notes and other invoice adjustments must also be issued in EHF format and follow the same technical and legal requirements as invoices.
Do foreign suppliers need to comply?
Yes. Foreign suppliers invoicing Norwegian public authorities must issue invoices in EHF/Peppol format, even if they are not established in Norway.
Is a Norwegian organisation number required to send e-invoices?
No. Foreign suppliers do not need a Norwegian organisation number, but they must use a Peppol-enabled solution and be correctly registered in the Peppol directory.
What is the ELMA directory?
ELMA (Elektronisk mottakeradresseregister) is Norway’s national register of e-invoice recipients. It is integrated with the Peppol network and indicates which organisations can receive electronic invoices and in which formats.
Is registration in ELMA mandatory?
Yes, for public sector entities and for private businesses that want to receive e-invoices.
Public authorities must be registered to receive invoices, and suppliers rely on ELMA to identify valid recipients.
Who manages ELMA?
ELMA is managed by DFØ (Norwegian Agency for Public and Financial Management) and is synchronised with the Peppol SMP infrastructure.
Does ELMA apply to B2B transactions?
Yes. Many private businesses are registered in ELMA on a voluntary basis, which supports the widespread adoption of Peppol in B2B flows.
Are there penalties for non-compliance?
While the e-invoicing rules themselves do not specify automatic fines, failure to comply may:
- Delay payment
- Breach contractual obligations
- Lead to sanctions under accounting or tax law if systemic non-compliance is identified

Country Specs

Mandate StatusMandatory
Model TypeInteroperability / Post-Audit
Government EntitySkatteetaten
FormatsUBL 2.1
Infrastructure / PlatformPeppol with national SMP (ELMA)
E-signature RequiredNo
Key Deadlines1 July 2011: Central government required to receive e-invoices

1 July 2012: Suppliers to central government required to send e-invoices

1 April 2019: Mandatory e-invoicing for all public authorities and suppliers (B2G) using EHF / Peppol BIS Billing 3.0
AR MandatoryAll suppliers must send structured e-invoices (EHF/Peppol BIS) to public bodies.
AP MandatoryAll public bodies must be able to receive/process e-invoices.
Peppol AvailableYes
Domestic TransactionsAll public bodies must be able to receive/process e-invoices, and suppliers must send structured e-invoices (EHF/Peppol BIS) under Regulation FOR-2019-04-01-444.
Cross-border TransactionsForeign suppliers must issue EHF / Peppol-compliant e-invoices when invoicing Norwegian public authorities.
Archiving Period5+1 years
Archiving AbroadElectronic archiving abroad is allowed within the EEA, the UK, and Switzerland upon written notification to the Norwegian Tax Administration, provided the material remains electronically accessible and printable from Norway at all times. Storage outside of these designated jurisdictions requires explicit prior special permission.

Contact an expert

Feeling lost or need more info about this e-invoicing mandate? ecosio can help!

Our team of e-invoicing experts is ready to guide you through everything needed to stay compliant—not just with this mandate, but with all current and upcoming e-invoicing requirements worldwide.
Send us your questions. We’ll provide clear, actionable answers!

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