Skip to main content

NIS — Bulgaria e-invoicing

Invoicerr does not support Bulgaria

No Bulgaria 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 Bulgaria support knows what adding it would involve. The countries Invoicerr does cover are listed in the country directory.

Bulgaria's B2G e-invoicing runs through NIS (National Information System), the platform operated by the NRA (National Revenue Agency) for public-procurement invoices. B2B e-invoicing remains voluntary, with direct delivery between trading partners rather than a clearance step. Bulgaria is separately preparing a SAF-T reporting regime.

What supporting Bulgaria would involve​

SystemNIS — National Information System, Bulgaria's B2G e-invoicing platform
AuthorityNational Revenue Agency (NRA)
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.
TransmissionNIS (National Information System), Bulgaria's B2G e-invoicing platform. 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 through NIS has been mandatory since 2016.
  • B2B e-invoicing is voluntary and post-audit — no clearance step, invoices go directly to the buyer.
  • SAF-T reporting is being phased in, starting with large enterprises.

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 Bulgaria.

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

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