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SABIS — Lithuania e-invoicing

Invoicerr does not support Lithuania

No Lithuania data file exists anywhere in this repository — no country policy, no identifiers, no tax system, no transmission channel. Nothing on this page is implemented. It is here so that someone who wants Lithuania support knows what adding it would involve. The countries Invoicerr does cover are listed in the country directory.

Lithuania's e-invoicing runs through SABIS, the platform operated by the National Centre for Common Functions (NBFC), which replaced the earlier eSąskaita system. The State Tax Inspectorate (VMI) is the tax authority behind the mandate.

What supporting Lithuania would involve​

SystemSABIS, operated by the National Centre for Common Functions (NBFC)
AuthorityState Tax Inspectorate (VMI)
FormatEN 16931 (Peppol BIS). This repository already builds and validates it (formats/peppol-bis-provider.ts, formats/ubl-provider.ts), so the format would not have to be written from scratch.
TransmissionSABIS. No transport in backend/src/modules/documents/transports/ talks to it today.
Inherited, unverified

Carried over from an earlier research pass in this repository's own history, and never checked against a primary source. Leads, not facts — confirm every line before writing it into a data file.

  • B2G e-invoicing became mandatory in September 2024, migrating from the earlier eSąskaita platform.
  • B2B e-invoicing remains voluntary.
  • Archive retention cited at 10 years via SABIS.

Which catalogues a contributor would add​

Adding a country is data, not code. Adding a country is the procedure and the contract each file has to satisfy; this is only the shopping list for Lithuania.

  • country-policy/data/lt.json — which document actions Lithuania allows. Start here: without this file every action is refused with a 403, naming the country.
  • country-identifiers/data/lt.json — which national identifier a party must carry.
  • tax/tax-systems/data/lt.json and vat-rates/data/lt.json — the tax kind, and the rate ladder offered on an invoice line.
  • correction-routes/data/lt.json — all eleven canonical correction routes, unverified where unresearched, never omitted.
  • b2g-routing/data/lt.json — the channel and format a Lithuanian public buyer requires.
  • transports/channel-policy/data/lt.json — whether a channel is legally required of a seller established in Lithuania, and from what date.
  • archive/retention/data/lt.json — how long an archived document is kept, and what the duration is counted from.

Add mentions/, content-requirements/, country-fields/, reporting/ and domestic-reverse-charge/ only where the law actually gives them content.

Data alone will not finish the job here: SABIS is a transmission channel this repository does not implement, which is code, not a JSON file — see When a country needs more than a file.

Want Lithuania supported?​

Check the open compliance issues first. If there is no issue for Lithuania, open one and name which of the files above you need — a request that names one mechanism is far more actionable than "please add Lithuania".