How to Find a Finnish Company's E-Invoice Address

To find a Finnish company's e-invoice address, search the national register at verkkolaskuosoite.fi by the company's name or business ID, then copy the e-invoice address and the operator ID shown next to it. If you plan to send over Peppol, also search the Peppol Directory for the same business and copy its identifier exactly as listed. If neither search finds the company, ask the company, which is the route TIEKE itself calls the most common and fastest.

This is the first practical step in invoicing a Finnish customer from abroad. It covers looking an address up. It does not cover registering an address: that is done for an organisation by its own bank or operator, and GoRoute does not do it.

Where do I look an address up?

There are three places, in the order we would try them.

1. Ask the buyer. TIEKE, the Finnish Information Society Development Centre that maintains the register, says the most common and fastest way to get an address anywhere is to ask the company directly. For Finland there is also a register to check what you are told against.
2. The national e-invoice address register, called the verkkolaskuosoitteisto, at verkkolaskuosoite.fi. TIEKE says it contains the addresses of Finnish companies and public sector organisations and is free for anyone to search. You can search by organisation name, by the name of the address, by the address itself or by business ID.
3. The Peppol Directory at directory.peppol.eu. TIEKE calls it a general register of Peppol addresses and warns that it is incomplete. Finnish public bodies must also publish Peppol details in a national list run by the State Treasury, and TIEKE says those are synchronised into the national register, so the register shows both kinds of address.

Search by business ID where you can. The business ID (Y-tunnus) is one organisation; a name can match several.

What does a register entry tell you?

TIEKE lists what the register holds for each organisation: the name, the business ID, the e-invoice address, and the intermediary service ID. An organisation can add more, such as a postal address, a website and contact people, but TIEKE notes that intermediaries do not usually add these for it.

Some organisations have more than one address under the same business ID, for example for different offices or functions, with names such as "Helsinki office" or "property taxes". Read the name of each address. If several addresses share the same OVT code but have different intermediaries, one can be marked as primary and is shown first.

An organisation can also mark an address as secret. A secret address does not appear in the register, and intermediaries still deliver invoices to it. If a buyer you know uses e-invoicing but is missing from the register, that may be why.

How do I read an OVT address?

An OVT address is the country code 0037 followed by the business ID without the hyphen. The TIEKE guide gives 0037 as Finland's code and uses 003712345671 as its example. Read that as 0037, then 12345671, which is the business ID 1234567-1 with the hyphen removed.

The name OVT stands for Organisaatioiden Välinen Tiedonsiirto. TIEKE lists it as one address type alongside IBAN-based addresses and others, though only the intermediaries see the type. Only the buyer's bank or operator can add an address, so you copy it and never create one.

How do I read the operator ID?

The operator ID, called the intermediary service ID or välittäjätunnus, is shown next to the address. It identifies the bank or operator that receives invoices for that address, and your own operator uses it to route the invoice. An address with the wrong operator ID goes nowhere, so copy both from the register, not from an old invoice.

For an example of a published pair, the State Treasury states the structure of the state's addresses: the address is the agency's OVT code, and the intermediary ID is FI28768767, which it names as Posti Messaging Oy, the state's e-invoice operator. Each agency has its own OVT code. The State Treasury sends suppliers to the register for the up-to-date address of each agency.

How do I read a Peppol ID?

A Peppol participant identifier is a scheme code and a value, written with a colon. For Finland, TIEKE says the scheme 0216 is mandatory for addresses in the national Peppol list.

We looked at what the Peppol Directory actually holds. On 10 November 2026 a search by country Finland returned 14,827 entries. We read a sample of 300, the first pages returned, which is not a random draw. Of those, 195 were under scheme 0216 and 102 under scheme 0037, the code TIEKE gives for Finland. Every one of the 195 under 0216 began with 0037, and 186 of them were 12 digits long: 0037 and the eight digits of a business ID, the same shape as an OVT address. A few were longer, and we do not explain the longer ones here.

What this means for you: do not construct a Peppol ID from a business ID. Search the Directory, and copy the identifier with its scheme exactly as the entry shows it. The Directory also lists the document types a participant can receive, which tells you whether it accepts a Peppol BIS Billing 3.0 invoice. For how the schemes work, see which Peppol identifier is yours.

What if the buyer has only an operator address?

Then the Peppol route is closed for that buyer, and the invoice goes by the operator route. TIEKE's advice for a foreign sender is to ask your own operator what information must be in the address for the invoice to be accepted, and says intermediary details depend entirely on the recipient and their operator, so it is always worth confirming them with the recipient.

Peppol is still the smaller network in Finland. TIEKE says Peppol invoices were still a very low share of e-invoices at the end of 2024. Expect operator-only buyers.

What if you cannot find the company at all?

Work through three checks.

• Is it a Finnish organisation? The register holds only organisations with a Finnish business ID. TIEKE says a company must first appear in the Business Information System, the public service of the Finnish Patent and Registration Office and the Tax Administration, before it can be added.
• Has it asked an operator to publish an address? Addresses never appear on their own. The bank or operator adds the address after an agreement is signed.
• Is the address secret? Ask the buyer.

If the company is a public body, the next article tells you where its invoices go: invoicing the Finnish public sector.

What to do next

Take your ten largest Finnish customers, search each by business ID in both places, and record the address, the operator ID and the Peppol identifier next to each name. Mark which ones have a Peppol ID. That list tells you whether the Peppol route reaches them.

The Finland page explains how addresses and operators fit together. Once you have an identifier, you can test a delivery in the free developer sandbox, read the documentation, or watch an invoice sent in the tutorials. To have your Finnish buyers looked up with you, book a call. For what has to appear on the invoice itself, read Finnish VAT invoice requirements.

GoRoute is a certified Peppol Access Point (POP000991).

Primary sources: TIEKE, Information about the e-invoice address service, E-invoicing in Finland for foreign companies and Sending and accepting e-invoices to and from Finland; State Treasury, Lähetä lasku valtiolle (address structure, read 10 November 2026); Peppol Directory, read 10 November 2026.