The Greek Independent Authority for Public Revenue (AADE) has sent messages to more than 1.5 million employees and pensioners, informing them that their tax returns are pre-filled and ready for submission on April 16, 2026. Taxpayers are called upon to check their data and choose either to submit the return themselves or to allow the service to handle this process.
If corrections are required, they can submit an original return by April 15 or a modified return without penalties from April 17 to July 15, 2026. Those who find that their data is correct and no changes are needed don’t need to take any action, while they have the option to submit their return earlier if they wish.
Guidelines for pre-filled tax returns
Specifically, AADE informs taxpayers whose returns have been pre-filled that: If there are changes to the data available to us, you will receive a notification to visit the application again, view the updated data and, depending on when the change occurred, take the necessary actions.
Specifically:
1. Before submitting the return
If the change occurs before submitting your return, either by you or by the service through internal procedures, and you agree with the change, no action is required. The latest data will be taken into account and your tax liability will be calculated based on this information.
2. After submitting the return
If the change occurs after submitting your return and you agree with the change, you must submit a modified return. If you disagree with the change, it is recommended to contact your tax advisor for the necessary actions.
Key warning points
Taxpayers should carefully check the pre-filled data in their returns and correct any errors, gaps or omissions by submitting the return themselves before automatic submission by AADE. Thorough verification of all data is essential to avoid additional tax burdens and penalties.
Initially, confirming personal details such as marital status and dependent family members is particularly important, as any errors may affect the tax amount or eligible benefits. Next, income shown must be carefully checked, as it’s possible that not all income has been recorded, such as rental income, occasional employment or foreign income.
Equally important is checking withheld taxes and insurance contributions to ensure they have been recorded correctly and completely. Additionally, expenses made through electronic transactions must be examined, as they are linked to covering the tax-free threshold and avoiding additional tax.
Special attention is also required for living standard indicators, such as residences and vehicles, which may increase deemed income if not adequately covered by declared amounts. Furthermore, checking property details and the declared IBAN is essential to ensure proper refund of any credit balance.
