- Estonia’s B2B e-invoicing is not a universal mandate; since July 1, 2025, a supplier must issue a structured e-invoice only if the buyer is registered as an e-invoice recipient and requests one.
- If no alternative is agreed, the default invoice standard is EN 16931, though parties may agree on another suitable format.
- Estonia’s national XML e-invoice format remains usable by agreement, and Peppol BIS Billing 3.0 is supported for interoperable domestic and cross-border exchange.
- The system is decentralized: there is no single state invoice platform, so businesses may use private operators, ERP/accounting software, or Peppol connections.
- B2G e-invoicing remains mandatory in practice, with public-sector entities registered as e-invoice recipients.
Source: fiscal-requirements.com
Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.
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