Greek taxpayers have until June 15th to submit their 2026 tax returns and qualify for a 3% discount on their tax liability. The deadline applies to those settling their taxes early. Tax authorities are advising citizens to review their preliminary tax assessments, known as “ekatharistika,” carefully. These assessments detail any owed or refundable amounts. Taxpayers should pay close attention to potential discrepancies or errors in the calculations. The guidance emphasizes the importance of verifying all reported income and deductions. The period for review and potential adjustments extends until July 15th, following the initial June 15th payment deadline for the discount.