E-invoicing in Bulgaria

Bulgaria does not currently have a broad B2B e-invoicing mandate or a universal B2G supplier e-invoicing mandate. Public-sector bodies must be able to receive and process invoices that comply with the European e-invoicing standard, and electronic public procurement is supported through CAIS EPP and authority-level systems.
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The country is worth monitoring because reform discussions have included a possible mandatory clearance model. For now, Bulgaria is a readiness and watchlist market rather than a live broad B2B e-invoicing mandate.

At a glance

B2B e-invoicing
No domestic B2B mandate
B2G e-invoicing
Public authorities must receive/process EN-compliant invoices; no broad supplier mandate
Public procurement platform
CAIS EPP
VAT reporting model
No broad e-invoicing-based real-time reporting model today
Strategic direction
Possible future clearance-model reform under discussion

What the mandate means

Bulgarian public authorities must support structured e-invoices in line with EU public procurement rules, but suppliers are not generally compelled to issue e-invoices across all B2G transactions. In private-sector transactions, e-invoicing remains voluntary.
Businesses should not over-engineer Bulgaria-specific processes before final rules are published. However, they should prepare reusable invoice data capability so that any future clearance model can be implemented without redesigning the ERP core.
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Timeline

2019-2020: EU public-sector e-invoicing acceptance requirements applied

Current: No broad B2B mandate or national clearance model in force

Future: Public consultation and reform proposals may shape a future mandatory model

What businesses should do now

Businesses should continue to comply with customer-specific B2G requirements, maintain structured invoice capability for public procurement and monitor Bulgarian Ministry of Finance and EU updates for any move toward clearance or real-time reporting.

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Frequently asked questions

No broad mandate is in force today. Future reforms have been discussed, but businesses should rely on final legislation rather than market speculation.

Yes. Public authorities must be able to receive and process EN-compliant e-invoices under the EU public-sector framework.

Sources:

European Commission: eInvoicing in Bulgaria

Bulgaria CAIS EPP public procurement platform

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