Finland - e-invoicing mandate
No issuance mandate — but the buyer can demand a structured e-invoice
Finland has no general obligation to issue electronic invoices. What it has is a buyer's right: under law 241/2019, a contracting authority or a business may DEMAND a structured EN 16931 invoice from its supplier, with no minimum amount — and the supplier must then comply. The right does not apply to consumers. B2G has been mandatory since April 2020. Finvoice and TEAPPSXML remain widely used alongside EN 16931.
The mandate at a glance
B2B
B2G
E-reporting
Formats
Model
Post-audit — invoices flow freely and the authority audits afterwards
Network
Finvoice / TEAPPS + Peppol
National specification
Not applicable
Legal basis
Laki hankintayksiköiden ja elinkeinonharjoittajien sähköisestä laskutuksesta (241/2019)
Official sources
- www.finlex.fi — Law 241/2019 — buyer’s right to demand a structured EN 16931 e-invoice
- www.valtiokonttori.fi — State receives EN 16931 only from 01/04/2021
Last verified: 2026-07-12
No general B2B mandate — instead a legal right (law 241/2019) for a buyer to demand a structured EN 16931 e-invoice, with no monetary threshold.
Information current as of 2026. Mandates can change. Official source
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Open the validatorFrequently asked questions
Is e-invoicing mandatory in Finland?
Status in Finland: No issuance mandate — but the buyer can demand a structured e-invoice. Finland has no general obligation to issue electronic invoices. What it has is a buyer's right: under law 241/2019, a contracting authority or a business may DEMAND a structured EN 16931 invoice from its supplier, with no minimum amount — and the supplier must then comply. The right does not apply to consumers. B2G has been mandatory since April 2020. Finvoice and TEAPPSXML remain widely used alongside EN 16931.
Which e-invoice formats are accepted in Finland?
The accepted formats in Finland are: Finvoice 3.0, TEAPPSXML 3.0, EN 16931. They are exchanged over Finvoice / TEAPPS + Peppol. You can validate a file against these formats for free, in your browser, with ValidateFin.
How do I check that my invoice is compliant for Finland?
Validate your invoice against the EN 16931 / Peppol business rules before sending it. ValidateFin runs the checks entirely in your browser — no invoice data is uploaded — so you can confirm compliance for Finland without transmitting anything.