E-Invoices to All Finnish Customers

From January 2025 Telema customers have a streamlined solution for sending e-invoices to all Finnish clients, thanks to a strategic partnership with the software company TietoEvry. This collaboration ensures that Telema can deliver e-invoices to Finland, where Tieto guarantees they reach the correct recipient in the proper format.

Previously, each recipient’s e-invoice operator roaming agreements had to be verified, adding complexity to the invoicing process. Now, this step has been eliminated, making e-invoicing to Finland significantly easier and more efficient.

Finland e-invoices Regulation

In Finland, e-invoicing has been mandatory for business-to-government (B2G) transactions since 2020, ensuring standardized electronic formats for invoices sent to public institutions. This regulation improves efficiency, reduces administrative costs and enhances transparency in public sector transactions.

While business-to-business (B2B) e-invoicing is not yet legally required, Finnish companies are increasingly adopting e-invoicing due to its efficiency, cost savings, and environmental benefits. Companies have the right to demand e-invoices from their partners, and many larger enterprises are proactively transitioning to e-invoicing to streamline their financial operations. This trend aligns with broader European Union initiatives to standardize and digitalize invoicing processes across member states. Estonia is following a similar path, as starting July 1, 2025, Estonian businesses and institutions will have the legal right to request e-invoices from their trading partners

Additional Fields on Finnish Invoices

There is one specific requirement for Finnish invoices: To send e-invoices to Finland, you as a seller must include the buyer’s e-invoice address and operator ID in specific invoice fields. If you are using ERP such as Standard Books, Directo, Merit or Odoo, then those already have Finnish-invoice-specific fields. You can find your Finnish customer’s e-invoice identifier in the TIEKE registry. However, since registration in the TIEKE database is not mandatory for e-invoice recipients, the most reliable way is to ask your customers directly for their e-invoice address and their operator ID.

e-Invoicing to Finnish Clients with Telema

If your company wishes to send invoices to Finnish customers, Telema makes the process seamless:

• For Existing Telema Customers. Activating the service requires only signing an additional service agreement. Since your company is already securely connected to the Telema system, there’s no need to worry about invoice formats—Telema ensures invoices are delivered in the required format automatically.
• For New Customers. To start sending e-invoices, contact us specifying whether you want to send invoices to Estonia, Latvia, Finland or the PEPPOL network. By joining Telema, you gain access to a broad e-invoicing network, simplifying cross-border business transactions.

The Telema-TietoEvery partnership significantly improves and simplifies e-invoicing to Finland, eliminating administrative barriers and time-consuming processes. This allows businesses to focus on their core activities without worrying about compliance or technical complexities.

In addition to sending invoices to Finnish customers, Telema also enables businesses to receive e-invoices from all Finnish partners.

Contact us and let us know if you would like to send e-invoices to Finland, receive e-invoices from Finland or both!

^{* TIEKE (Tietoyhteiskunnan kehittämiskeskus) is the Finnish Information Society Development Center, which promotes digitalization, e-invoicing, and data exchange standards.}