12,000 Taxpayers Targeted by Greek Tax Authority Over Reporting Irregularities

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The Independent Authority for Public Revenue (AADE) is set to audit approximately 12,000 taxpayers identified through electronic cross-checks as having either concealed income or failed to file tax returns for the 2025 tax year. The AADE plans to issue related notices during 2026 to complete procedures before statutory limitations expire.

Penalties and Estimated Tax Assessments

Those found not to have submitted tax declarations will face not only additional taxes but also substantial fines and surcharges on the undeclared income. In parallel, the AADE intends to implement ‘estimated’ tax assessments in the second half of 2026—applying even to individuals and legal entities that have not filed any return. To determine likely taxable income, the authority will draw on data regarding lifestyle standards, consumer spending, professional activity, and business transactions.

Data Sources and Enforcement Mechanisms

These cross-checks rely on existing information already held by the tax administration—including data from employers, banks, digital platforms, and other official databases. For taxpayers who fail to submit returns, the AADE will automatically issue tax assessments. Fines will range from 10% to 50% of the assessed tax amount.

Options for Taxpayers

Recipients of these assessments will have 30 days to settle the amount in full—or submit a late tax return, triggering a new assessment that includes applicable surcharges and interest.

It’s worth noting that the deadline for filing this year’s tax returns is 15 May. Taxpayers who pay their tax liability in a single installment by that date are eligible for a 4% discount.