🇬🇷 E-invoicing mandate
E-invoicing in Greece: deadlines and requirements
Every national e-invoicing milestone for Greece, with the required format and the official source — checked on 28 Oct 2026.
Next deadline · 2 Nov 2026
B2B e-invoicing for all remaining businesses
—days
Timeline
2 Mar 2026In force
B2B e-invoicing for businesses above €1m
—
days to go
Businesses with 2023 gross revenue above €1 million, through an AADE-authorised provider.
Format: myDATA via authorised provider
Source: AADE2 Nov 2026Confirmed
B2B e-invoicing for all remaining businesses
—
days to go
Businesses at or below €1 million revenue; transition period until 31 January 2027.
Format: myDATA via authorised provider
Source: AADE
Frequently asked questions
- When does e-invoicing become mandatory in Greece?
- Already in force: B2B e-invoicing for businesses above €1m (since 2026-03-02). Next: B2B e-invoicing for all remaining businesses on 2026-11-02.
- Which e-invoice format is required in Greece?
- myDATA via authorised provider.