🇫🇮 Finland E-Invoicing & Finvoice

Finland is one of the world's most advanced countries in e-invoicing adoption, with approximately 80% of all B2B invoices already exchanged electronically. The country pioneered the Finvoice standard in 2003 and has built a robust financial messaging infrastructure through its banking network. Combined with strong Peppol adoption for government invoicing, Finland represents a near-universal e-invoicing environment where paper invoices are the exception, not the rule.

For businesses entering the Finnish market or trading with Finnish companies, e-invoicing is not merely a legal requirement for government suppliers — it is a practical necessity driven by the expectations of Finnish trading partners across all sectors.

Timeline of E-Invoicing in Finland

Who Is Affected?

B2G (Business-to-Government)

All Finnish public-sector entities are required to accept electronic invoices. This covers central government agencies, municipalities, public utilities, and state-owned enterprises. While there is no strict legal obligation forcing suppliers to send e-invoices, government entities strongly prefer electronic submission and may require it through procurement contract terms. In practice, B2G e-invoicing is effectively mandatory.

B2B (Business-to-Business)

Finland has no formal B2B e-invoicing mandate, yet the adoption rate of approximately 80% makes it a de facto standard. Finnish businesses routinely request e-invoicing capabilities from their trading partners. Many companies — particularly large enterprises and public-facing organizations — will only accept electronic invoices and may charge additional fees for processing paper or PDF invoices. If you do business in Finland, e-invoicing capability is a practical requirement.

B2C (Business-to-Consumer)

Consumer e-invoicing is growing in Finland, particularly through online banking platforms where consumers can receive and pay Finvoice invoices directly in their bank's interface. While not legally mandated, this channel is widely used for utilities, telecommunications, and subscription services.

Accepted E-Invoice Formats

Finvoice 3.0 (Finnish Banking Standard)

Finvoice is Finland's national e-invoicing standard, maintained by Finance Finland (the banking industry association). Version 3.0 is the current release. Finvoice invoices are transmitted through the Finnish banking network — you send the invoice to your bank, which routes it to the recipient's bank, where it appears in their online banking or is forwarded to their accounting system. This bank-based delivery model is unique to Finland and the Nordic region, and it has been a key driver of high adoption rates.

Peppol BIS Billing 3.0

The Peppol BIS 3.0 format is accepted by Finnish government entities and is increasingly used for B2B transactions, especially in cross-border trade. Peppol invoices use UBL 2.1 XML and are delivered through the Peppol eDelivery network via certified Access Points. For international suppliers, Peppol is often the easier option since it does not require access to the Finnish banking network.

TEAPPSXML (Legacy)

TEAPPSXML is an older Finnish e-invoicing format that was used primarily by operator-based e-invoicing services. While some legacy systems still support TEAPPSXML, new implementations should use Finvoice 3.0 or Peppol BIS 3.0.

For credit notes, both Finvoice and Peppol BIS 3.0 support dedicated credit note message types with appropriate references to the original invoice.

How to Send E-Invoices in Finland

There are two primary channels for sending e-invoices in Finland:

Via the Finnish Banking Network (Finvoice)

1. Register with your bank: Contact your Finnish bank to activate Finvoice sending capabilities on your business account.
2. Obtain the recipient's e-invoicing address: Finnish businesses publish their e-invoicing addresses (OVT codes based on Business IDs) in the TIEKE e-invoicing address registry.
3. Generate Finvoice XML: Create invoices in Finvoice 3.0 format using your accounting software or ERP system.
4. Submit through your bank: Upload or transmit the Finvoice XML through your bank's business banking portal or API.

Via the Peppol Network

1. Connect to a Peppol Access Point: Register with a certified Peppol Access Point provider.
2. Look up the recipient: Use the Peppol SMP (Service Metadata Publisher) to verify the recipient's Peppol capabilities.
3. Send Peppol BIS 3.0 invoices: Transmit UBL 2.1 invoices through the Peppol network.

InvoicePeppol can help you convert existing PDF invoices into Peppol BIS 3.0 XML format, ready for submission through a Peppol Access Point.

Cross-Border E-Invoicing with Finland

For international businesses invoicing Finnish entities, the Peppol network is the recommended channel. Finnish government entities and many large businesses are reachable via Peppol, eliminating the need to access the Finnish banking network. If you already use Peppol for invoicing in Sweden, Austria, or Luxembourg, the same infrastructure works for Finland.

Frequently Asked Questions