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ERP ReferenceE-invoicing mandates

Country · BG

E-invoicing in Bulgaria

Last verified · official sources

B2B (domestic)

No mandate

There is no general B2B e-invoicing mandate in Bulgaria according to the sources we checked.

B2G (public sector)

In force

In Bulgaria, recipients have had to accept and process e-invoices since 1 November 2019; there is no general obligation to send them.

Key facts

Model
No B2B e-invoicing regime in force today.
Formats
Network / platform
Not verified
Archiving period
Not stated in the sources we checked
Penalties
Not stated in the sources we checked

Timeline

Each step says who is affected and, where the source states it, whether the obligation is to send, receive or both.

  1. 1 November 2019B2GIn forcereceive only

    All public sector entities must receive and process EN 16931 e-invoices (procurement contracts above EU thresholds); suppliers are not obliged to send e-invoices

Details and caveats

No B2G sending mandate, no B2B or B2C mandate, no national CIUS. CAIS EPP is the central e-procurement platform but each public authority runs its own invoice system. Bulgaria has opened a public consultation on a mandatory clearance e-invoicing model (not legislated). EC factsheet last updated Aug 2025.

ERP support in Bulgaria

FAQ

Is B2B e-invoicing mandatory in Bulgaria?

There is no general B2B e-invoicing mandate in Bulgaria according to the sources we checked.

Is e-invoicing mandatory for suppliers to the public sector (B2G) in Bulgaria?

In Bulgaria, recipients have had to accept and process e-invoices since 1 November 2019; there is no general obligation to send them.

Which e-invoice formats and network are used in Bulgaria?

Formats recorded from official sources: EN 16931 (UBL 2.1 / CII). Network or platform: not verified.

Related

Sources

Last verified . Always check the official source before acting.