Greece Drafts 15% Crypto Gains Tax, Exempts First €500

The draft law does not specify how the tax authority will verify crypto gains. That is the critical gap. Greece's Independent Authority for Public Revenue (AADE) has no real-time access to blockchain data or exchange APIs. Enforcement will likely rely on self-declaration, with audits triggered by large or inconsistent filings.

Execution risk is high in the first year. Traders and miners who under-declare face penalties. The tax authority's ability to detect under-reporting is limited without a mandatory exchange reporting regime. The draft law does not include a requirement for exchanges to automatically report user gains to AADE, which is the mechanism used in countries like the UK and Australia.

Sector Read-Through: Which Peers Are Affected

The draft law directly impacts any crypto business with Greek exposure. That includes:

• Corporate miners with Greek-registered entities or Greek-based data centers. They now have a clear tax liability that must be factored into cost-per-coin calculations.
• Greek crypto traders using local or international exchanges. The €500 exemption protects small traders. Anyone trading above that threshold must track cost basis and gains in euros.
• International exchanges serving Greek users. They may need to update onboarding flows to collect Greek tax IDs and issue annual gain statements, similar to what they do for German and French users.

For the broader European crypto tax landscape, Greece's move follows a pattern. Italy proposed a 26% crypto gains tax in 2023. Portugal, historically a crypto tax haven, introduced a 28% tax on short-term gains in 2023. Greece's 15% rate is competitive for attracting crypto businesses. The lack of exchange reporting means enforcement will lag behind peers.

Next Decision Point: Parliamentary Approval and Effective Date

The draft law must pass through Greece's parliament before taking effect. The timeline is unclear. The government has signaled intent to include the measure in the 2025 tax bill. Once passed, the effective date will determine whether gains from the current year are taxable under the new regime or only future gains.

For traders and miners, the practical step is to start tracking cost basis in euros now. Even if the law passes mid-year, retroactive application is possible. The €500 exemption means most retail traders will owe nothing. The record-keeping requirement still applies for anyone trading above that threshold.

Greece is not a major crypto mining hub. The draft law signals a broader European trend: countries are moving from tax ambiguity to tax clarity, and the rates are settling in the 15-30% range. The competitive advantage will go to jurisdictions that combine low rates with simple compliance, not just low rates alone.