Norway’s Mandatory B2B E-Invoicing Requirements
Norway is moving from widespread digital invoicing toward a mandatory B2B e-invoicing framework. Electronic invoicing is already well established in the Norwegian public sector, and the country has a mature technical ecosystem based on EHF and Peppol. The next step is to extend structured electronic invoicing more broadly to transactions between businesses subject to Norwegian bookkeeping obligations.
In June 2026, the Norwegian Parliament adopted amendments to the Bookkeeping Act introducing mandatory e-invoicing and digital bookkeeping. The new requirements will be introduced in two main stages. From January 1, 2027, bookkeeping-obliged businesses must send electronic invoices in relevant B2B transactions. From January 1, 2030, businesses must also use an electronic accounting system capable of receiving and automatically processing electronic invoices.
The change represents more than a new invoice delivery channel. Under the amended Bookkeeping Act, an electronic invoice is defined as a sales document that can be issued, sent and received in a structured electronic format suitable for automated processing in an accounting system. This means that an ordinary PDF invoice sent by email does not, by itself, meet the new definition of an electronic invoice.
Norway E-Invoicing Timeline
January 1, 2027 – Mandatory B2B e-invoice sending
The first phase introduces the obligation to issue structured electronic invoices for relevant sales of goods and services to other bookkeeping-obliged businesses.
The legislative preparatory works explain that, from January 2027, the sending obligation is intended to apply where the recipient is registered in ELMA (Elektronisk mottakerregister) and is therefore capable of receiving electronic invoices.
This makes outbound invoicing readiness the immediate priority for companies affected by the mandate.
January 1, 2030 – Mandatory digital bookkeeping and e-invoice receiving
The second phase expands the framework. Businesses within scope must use an electronic accounting system that enables automated processing of electronic invoices. In practice, this adds the broader obligation to receive e-invoices and incorporate them into digital bookkeeping processes.
The phased approach gives businesses additional time to modernize inbound accounting processes while requiring outbound e-invoicing readiness from 2027.
Who Is in Scope of Norway e-Invoicing?
The new requirements are built around the Norwegian Bookkeeping Act. They primarily concern documentation for sales and purchases of goods and services between businesses that are subject to Norwegian bookkeeping obligations.
The amended legislation states that documentation for sales to another bookkeeping-obliged entity must be issued in electronic invoice format, while corresponding purchase documentation must be received electronically.
Ordinary B2C transactions are not part of this B2B requirement. In addition, the legislation allows further requirements regarding invoice formats, as well as exemptions, to be established through regulations or individual decisions. Businesses should therefore continue monitoring the implementation framework as January 2027 approaches.
Norway e-Invoicing Format and Technical Requirements
Norway already operates a mature technical e-invoicing ecosystem based on EHF and Peppol.
The current EHF Billing 3.0 specification is based on Peppol BIS Billing 3.0 and implements the European EN 16931 electronic invoicing standard for the Norwegian market. The current EHF Billing specification uses structured UBL XML for invoice and credit note messages.
This existing framework is highly relevant for businesses preparing for the 2027 mandate. EHF invoices contain structured, machine-readable information that can be validated and automatically processed by ERP and accounting systems, reducing the need for manual data entry.
The Norwegian Ministry of Finance has confirmed that detailed invoice-format rules will be established through secondary regulations.
Businesses should therefore prepare their systems for structured, machine-readable invoice exchange while continuing to monitor the final technical specifications and any implementing or transitional rules.
The Role of Peppol in Norway e-Invoicing
Peppol already plays a central role in Norway’s electronic invoicing infrastructure.
EHF and Peppol BIS documents can be exchanged through the Peppol Network using Access Points. This allows organizations with different ERP and accounting systems to exchange standardized electronic business documents through an interoperable network.
The Norwegian Agency for Public and Financial Management (DFØ) acts as Norway’s Peppol Authority and is responsible for supporting the use and development of standardized electronic business processes through the Peppol Network.
ELMA operates as an electronic recipient address register within the Peppol ecosystem. It contains information about participating organizations, the types of electronic documents they can receive and the Access Point through which they can be reached. Registration is handled by the recipient’s Access Point provider.
For businesses preparing for 2027, Peppol connectivity and accurate recipient information are therefore important components of e-invoicing readiness.
e-Invoice Archiving in Norway
Electronic invoices are also subject to Norway’s accounting record-retention requirements. Primary accounting documentation must generally be retained for five years after the end of the relevant financial year.
The 2026 amendments introduce an additional requirement specifically for electronic invoices. An e-invoice must be retained in its original electronic format. This means businesses should preserve the original structured invoice throughout the applicable retention period rather than retaining only a PDF rendering or printed representation.
How can SNI help you about e-Invoicing in Norway?
SNI supports Norway’s upcoming B2B e-invoicing requirements by enabling businesses to prepare their invoicing and accounting environments for structured, machine-readable invoice exchange.
With SNI, businesses can:
- generate and receive structured e-invoices aligned with Norway’s EHF and Peppol-based ecosystem
- connect to the Peppol Network through appropriate Access Point connectivity
- automate invoice validation, transmission, receipt and processing
- centralize e-invoicing processes in a user-friendly compliance cockpit
- maintain electronic invoice records and audit data in line with Norwegian bookkeeping and archiving requirements
- remain aligned with evolving technical requirements for the 2027 B2B mandate and the broader 2030 digital bookkeeping framework
SNI solutions are designed to support different system landscapes while minimizing complexity. For SAP environments, SNI TDS is designed in line with SAP Clean Core principles, enabling lightweight, web service-based integration with minimal SAP-side customization. It supports integration across SAP ECC/R3 and SAP S/4HANA environments, with SAP BTP-based integration options where applicable.
For businesses using non-SAP ERP systems, SNI e-Doc Suite provides an ERP-independent cloud platform for managing e-document and tax compliance processes in a centralized, scalable and flexible environment.
This enables businesses to prepare for Norway’s phased e-invoicing rollout while maintaining an architecture that can adapt as final technical requirements and invoice-format rules continue to evolve.