E-Invoicing in Norway: A Practical Guide for All Businesses 
Norway is one of Europe’s pioneers in adopting electronic invoicing, especially in public procurement. With well-established infrastructure and legal frameworks, e-invoicing has become the standard for B2G operations and is increasingly adopted in B2B environments as well.
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With our e-compliance experience in more than 30 countries, the Melasoft SAP Add-On offers a simple, reliable, and fully compliant solution tailored to your company’s needs. It ensures smooth e-invoicing in Norway.
Legal Requirements:
Who Must Use E-Invoicing? 
If you send invoices to public sector entities in Norway, you must use e-invoicing. 
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From 1 July 2012, suppliers to central government agencies were required to send electronic invoices. 
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From 2 April 2019, this requirement extended to all public sector bodies, including municipalities and regional authorities. 
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E-invoices must follow the EHF format (based on PEPPOL BIS Billing 3.0). 
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For B2B, e-invoicing is currently voluntary, but under review by the Norwegian government. A working group was formed on 16 January 2025 to assess future mandates. 
PEPPOL Network: The Backbone of Norwegian E-Invoicing 
Norway uses the PEPPOL network (Pan-European Public Procurement Online) to transmit e-invoices. 
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Norway follows the 4-corner model: You (the sender) → your access point → recipient’s access point → recipient. 
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You need a registered PEPPOL Access Point provider to send or receive invoices. 
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Invoices must use the EHF format (Electronic Commerce Format) which is Norway’s localized version of PEPPOL BIS 3.0. 
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Recipient information is stored in the national ELMA directory, listing over 200,000 registered entities. 
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Over 95% of all e-invoices in Norway flow through the PEPPOL network. 
How to Send E-Invoices in Norway 
Choose one of the following: 
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​ERP or Accounting Software (that supports PEPPOL/EHF) 
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Web-based invoicing portals for manual entry 
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Access Point providers (for automated integration) 
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Note: Sending e-invoices via email as a PDF is not valid for public entities. 
Government Portal: What is Altinn? 
Altinn is Norway’s government platform for businesses. It offers: 
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Guides on how to comply with e-invoicing regulations 
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Registration and management of company information 
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Resources for choosing the right invoicing solution 
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Altinn does not send or receive e-invoices but supports companies in becoming compliant. 
PEPPOL Architecture:
4-Corner vs. 5-Corner 
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4-Corner Model: Norway's current system. Sender and receiver each work with their own access point. PEPPOL handles the delivery. 
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5-Corner Model (future possibility): Adds a tax authority or central platform that receives a copy of each invoice in real time. 
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Norway is currently exploring real-time reporting options (e.g., SAF-T), but the 5-corner model is not yet implemented. 
Quick Compliance Checklist 
B2G invoicing is mandatory
You must send e-invoices if you invoice any government institution in Norway. 
EHF (PEPPOL BIS 3.0) format 
Only this structured XML format is accepted by public sector entities. 
PEPPOL network required 
Invoices must be transmitted through a certified PEPPOL Access Point. 
No PDF accepted 
Email or PDF attachments are not valid for official invoicing. 
Use compliant software or portal 
Invoices must be sent via ERP systems or web portals that support PEPPOL and EHF. 
