Your compliance deadlines, on one page.
Every date here has a source, AADE or the Government Gazette, and is checked whenever it changes. See what applies to you and how much time you have.
Next deadline
E-invoicing up to €1,000,000
in 16 days
Which deadlines apply to you?
Four questions, one answer with a date. Nothing is stored.
All deadlines
Past dates stay for reference. Filter by topic.
- Past
Tills & POS
Card terminals linked to the till
Card terminals must be linked to the cash register or ERP. Every new till or ERP change must stay linked.
- Past
Digital transport
Digital transport documents: Phase A for all
Delivery notes are issued digitally, sent to myDATA before goods move and carry a QR code.
- Past
E-invoicing
E-invoicing above €1,000,000
Businesses with 2023 gross revenue above €1,000,000 issue electronic invoices.
- Past
Work card
Work card: penalties for IT and telecoms
Telecoms, software, IT consulting, health and personal services: the pilot period ends.
What it meansSource: Ministerial decision 15441/2026 (Greek)
- in 16 days
E-invoicing
E-invoicing up to €1,000,000
Mandatory for all remaining businesses. Until 31 January 2027, sending from the ERP is still allowed in parallel.
- in 26 days
E-invoicing
Accept your provider's start declaration
Businesses using a provider accept the e-invoicing start declaration within 10 days.
- in 30 days
Work card
Work card: penalties for more sectors
Warehousing, consulting, advertising, office services and computer and vehicle repair: the pilot period ends.
What it meansSource: Ministerial decision 18047/2026 (Greek)
- in 76 days
Digital transport
Digital transport documents: Phase B mandatory
Loading, transfer, receipt and quantity checks are filed digitally in myDATA, for every business.
- in 107 days
E-invoicing
Invoices only via provider or AADE
B2B and B2G invoices can no longer be sent from the ERP. Only through a provider, timologio or myDATAapp.
- in 441 days
Digital transport
Standard TARIC item codes
Items on transport documents are coded under the Combined Nomenclature (TARIC).
Questions about the deadlines
The answers are based on the sources listed below.
Which e-invoicing period am I in?
It depends on your gross revenue for tax year 2023. Above €1,000,000: mandatory since 2 March 2026. Up to €1,000,000: from 2 November 2026, phased in until 31 January 2027.1
Can I keep sending invoices to myDATA from my ERP?
Until 31 January 2027, in parallel. From 1 February 2027, B2B, non-EU and public-sector invoices are issued and reported only through a provider or AADE’s timologio and myDATAapp. Your ERP keeps working, connected to a provider.1
What changes for transport documents on 1 January 2027?
Loading, transfers, receipt and quantity checks become mandatory. Paper is not accepted: whoever carries the goods files the start of transport and whoever receives them confirms the receipt, by hand in myDATAapp or automatically with an app such as ABOVE TRANS. TARIC item codes follow on 1 January 2028.1
How do I know if the digital work card applies to me?
From your main activity code in TAXIS. In 2026, telecoms and IT joined, with penalties from 12 October 2026, and storage, consulting, office services and repairs, with penalties from 16 November 2026.5
Do the dates change often?
Yes. Phase B of transport documents was announced for 1 October 2025, moved to 1 May 2026, then to 12 October 2026 and finally to 1 January 2027. That is why every date here has a source, and we check it again whenever a new decision is published.4
Sources
We check every date against the official announcement. The last check is noted next to each source. Sources are in Greek.
- AADE press release, 30 September 2026: second-period e-invoicing and Phase B of digital transport documents checked 10 October 2026
- AADE press release, 17 February 2026: first-period e-invoicing checked 10 October 2026
- Taxheaven: second-period e-invoicing, start declaration and penalties checked 10 October 2026
- AADE press release, 29 October 2025: digital transport document phases checked 10 October 2026
- Ministerial decision 15441/2026 (Gazette B’ 3051): digital work card, new sectors checked 10 October 2026
- Ministerial decision 18047/2026 (Gazette B’ 3791): digital work card, new sectors checked 10 October 2026
- Circular 25291/2026: digital work card checked 10 October 2026
- AADE press release, 24 April 2024: linking card terminals to cash registers checked 10 October 2026
Let’s get your software ready in time.
See how SOFT1 covers each deadline, or ask us about the system you already run.