Summary
- Greece postponed mandatory e-invoicing for second-period businesses with gross revenue up to EUR 1 million to 2 November 2026.
- A gradual implementation period runs through 31 January 2027, during which existing commercial, accounting or ERP solutions may continue in parallel.
- From 1 February 2027, covered B2B, B2G and non-EU transactions must use a certified provider or the AADE timologio or myDATAapp applications.
Extended article
Greece has revised the timetable for the second wave of mandatory electronic invoicing. Businesses with declared gross revenue up to EUR 1 million, based on the tax year beginning in 2023, enter mandatory implementation on 2 November 2026. A transitional period operates from that date through 31 January 2027.
During the transition, affected businesses may continue using their existing commercial, accounting or ERP systems alongside the approved channels. From 1 February 2027, covered domestic B2B transactions, transactions with businesses outside the EU and B2G transactions must be issued and transmitted to myDATA exclusively through a certified e-invoicing provider or AADE’s free timologio or myDATAapp applications.
External sources: Greece deadline update | Expanded Greece overview
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