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myDATA: New Data Transmission Requirements for Heating Oil Subsidy Suppliers

  • New regulation A.1139/2025 modifies myDATA requirements for heating oil subsidy beneficiaries starting October 15, 2025
  • Oil suppliers must transmit additional mandatory data including buyer tax number, fuel codes for diesel heating, and electricity supply number
  • Data transmission applies to various invoice types through Electronic Service Providers with mandatory selection of heating subsidy indication
  • AAДЕ requires cross verification of beneficiaries through complete sales document data to ensure smooth subsidy payments
  • Documents can be transmitted via myDATA platform or e-send system with specific fuel codes 30-Diesel Heating and 31-Diesel Heating premium

Source: taxheaven.gr

Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.



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