Fiscal subject related
- Firstly, Greece’s Independent Authority of Public Revenue issued Decision No. 1170-2023, providing clarifications on the data transmission process on the myDATA platform.
- Greece’s Ministry of Finance published Law 5073/2023, which includes guidance on electronic data transmission, penalties for non-compliance, and e-invoicing.
- The AADE decision states that relevant legal entities must transmit certain data to the myDATA platform, with further guidance to be released soon.
- Entities issuing retail receipts through electronic cash registers will have their data automatically transmitted to the myDATA platform from April 1, 2024 (further details to be announced).
- Entities involved in the sale of electricity, gas, water, telecoms, etc., should transmit relevant data within two days of issuing their records until December 31, 2025.
- Invoices’ data should be transmitted by entities in businesses related to the sale of electricity, gas, water, etc., with the recipient transmitting it if the issuer fails to do so.
- A QR code is required in sales tax records issued via ERP programs or the AADE (IAPR) “Timologio” platform from January 1, 2024.
- In cases of technical connection problems, the relevant data must be transmitted within one day of the deadline (which has changed from the previous 2-day deadline).
Other news from Greece
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Already subscriber? LoginWhat do recent Greece’s market reforms mean for certain retailer companies?

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Already subscriber? LoginWhat consumers and sellers need to know regarding the novelty of the IRIS payment system in Greece.

Starting November 1st, 2025, all businesses in Greece—including physical stores and e-shops—must accept IRIS payments, which allow consumers to instantly pay from their bank accounts via mobile phones, bypassing traditional card entry. POS systems must be software-upgraded to support IRIS, enabling fast, secure payments and automatic receipt issuance, enhancing tax transparency through integration with cash registers. Read more
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Already subscriber? LoginNew obligations and deadlines for the Instant Payment – IRIS system in Greece

Starting November 1, 2025, all businesses selling to end customers in Greece must accept IRIS instant payments under Law 5139/2025, aligning with European Regulation 2024/886. Businesses must also register and verify their professional bank accounts through the AADE Professional Account Registry before using them for IRIS transactions. Read more