🇪🇪 Estonia - E-Invoicing Specifications
Status: 🟢 B2G Active | 🟡 B2B Customer Option 2025 | 🟡 Mandatory B2B 2027 Authority: Tax and Customs Board (Maksu- ja Tolliamet) Platform: e-Arveldus / Private Providers / Peppol
1. Context & Overview
Estonia has a highly digitalized tax system. B2G e-invoicing has been mandatory since 2019. The 2024 Accounting Act amendments introduce customer-driven B2B e-invoicing from July 2025, with full mandatory B2B from 2027.
| Date | Scope | Obligation |
|---|---|---|
| 2019 | B2G | Mandatory e-invoicing for public sector |
| Jul 2025 | B2B Customer | Suppliers must issue e-invoice if customer requests |
| 2027 | B2B All | Full mandatory B2B e-invoicing |
| 2030 | Cross-border | ViDA mandatory for intra-EU B2B |
2. Technical Workflow
flowchart TD
S["Invoicerr (Supplier)"] -->|1. EN 16931 XML| Prov[Private e-Invoice Provider]
subgraph "Decentralized Network"
Prov <-->|"2. Roaming Agreements"| OtherProv[Other Providers]
Prov -->|"3. Delivery"| Rec[Recipient]
end
subgraph "B2G Flow"
S -->|1a. X-Road| eArv[e-Arveldus]
eArv -->|"2a. Processing"| PE[Public Entity]
end
Rec -->|"4. Status Update"| Prov
PE -->|"4a. Status"| eArv
🧱 Key Components
- Decentralized Network: Multiple private providers (Billberry, E-arveldaja, etc.)
- X-Road Infrastructure: Secure data exchange layer
- Roaming Agreements: Inter-provider connectivity
3. Data Standards & Formats
A. Accepted Formats
- EN 16931 compliant XML (EU standard)
- UBL 2.1 syntax
- UN/CEFACT CII format
- EVS 923: Estonian national XML standard
B. Critical Data Fields
- KMKR: Estonian VAT number
- Registry Code: Business registration number
- e-Invoice Address: Provider-specific identifier
4. Business Model
- Customer-Driven: Buyer can request e-invoice
- Decentralized: No central platform, provider network model
- X-Road Integration: Secure government data exchange
5. Implementation Checklist
- Provider Selection: Choose e-invoice service provider
- EN 16931 Compliance: Implement EU standard format
- X-Road Connection: Set up secure government integration
- Customer Request Handling: Build workflow for e-invoice requests
- Archive Setup: Configure 7-year digital storage