Greece B2B e-invoicing launch date announced

Greece has officially set the timetable for the rollout of mandatory B2B e-invoicingElectronic invoicing - widely referred to as e-invoicing - is the exchange of a digital document between a supplier and a buyer. E-invoices are issued, transmitted and received in a structured data format that enabled automatic and electronic processing. They contain data in a machine-readable format so that an AP system can read an invoice without manual data entry, leading to faster and more efficient invoicing. through the myDATA platform, marking a major milestone in the country’s ongoing tax digitalisation strategy.

The reform is designed to reduce fraud, improve compliance, and simplify reporting for businesses, while aligning Greece with wider European e-invoicing trends.

Key launch dates

• 2nd February 2026: Large resident businesses (turnover over €1 million in 2023) must begin issuing B2B e-invoices for domestic and export (non-EU) transactions.
• 1st October 2026: All other resident taxpayers must issue B2B e-invoices.
• Transitional period: Runs until the end of 2026 to support phased adoption.

EU cross-border invoices will remain optional for now, but the system is designed to accommodate them in the future.

How the system works

• Invoices will be issued electronically and reported through the myDATA platform, managed by AADE (Greece’s Independent Authority for Public Revenue).
• Companies can transmit invoices using:

• • Certified Electronic Data Issuance Providers (EDIPs), or
  • Free government tools like timologio or myDATAapp.

• All data must conform to EN 16931-1, the European e-invoicing standard.

Incentives for early adoption

Businesses that start e-invoicing at least two months before their deadline will qualify for tax incentives, including:

1. 100% additional depreciation on relevant equipment and software.
2. Increased deductibility of e-invoicing-related expenses in the first 12 months.

These benefits aim to offset the cost of transitioning while rewarding proactive compliance.

Getting ready

1. Check your category – Identify whether you fall under Phase 1 (turnover > €1m in 2023, deadline February 2026) or Phase 2 (all others, deadline October 2026).
2. Assess readiness – Ask Innovate Tax about our e-invoicing workshops.  These tailored sessions help identify current gaps, clarify next steps, and build a practical roadmap to compliance, specific to your business needs.
3. Plan early adoption –  Taking action ahead of deadlines can unlock valuable tax incentives.
4. Implementation & compliance – Innovate Tax can handle onboarding, integration, testing and go-live – making sure your e-invoices meet AADE standards from day one.

With Innovate, you’ll not only be ready for Greece’s February and October 2026 deadlines, but also position your business for future e-invoicing mandates across Europe.