Tax Season 2026: Deadlines, Discounts, and Key Changes for Greek Taxpayers

The Greek tax season is underway, presenting both opportunities for savings and potential pitfalls for taxpayers. Ta Nea is closely monitoring the process to ensure our readers are well-informed about the deadlines, procedures, and available incentives. This year, the Hellenic Tax Administration (AADE) continues its push towards digitalization, with pre-filled tax returns available for a significant portion of the population.

For over 1.5 million employees and pensioners, their tax declarations are already populated with data. While this simplifies the process, it is crucial for individuals to meticulously review these pre-filled forms. Any inaccuracies or omissions could lead to penalties. The AADE platform offers a window for corrections until April 15, 2026, after which declarations will be automatically finalized. For those who need to make adjustments or submit amended returns, the deadline is July 15, 2026.

Furthermore, taxpayers can benefit from tax discounts by settling their tax obligations promptly. A 4% discount is available for those who pay their full tax amount by July 31, 2026. Additional discounts of 3% and 2% are offered for earlier finalization dates, encouraging timely submission. The government is also adjusting certain tax parameters, such as reducing the minimum annual objective expense for property and vehicles, and updating business activity codes (KAD) in line with new European classifications. These changes aim to streamline the system and potentially offer some relief, but understanding their specific impact is essential for every taxpayer.