If I buy an apartment in Athens for Airbnb, how on earth does the tax work? Will the ATO tax me on top of whatever the Greek tax office takes?

Australia and Greece do not have a comprehensive double taxation agreement. The only bilateral tax agreement in force covers airline profits (ATO list of tax treaties, 30 May 2026). Negotiations on a full treaty began in February 2022 and had not concluded as of April 2026. Greek tax applies to your Greek-source rental income. Whether you can then claim relief in Australia, and how much, depends on Australia’s domestic foreign income tax offset rules, not on a treaty. Confirm how they apply to you with an Australian tax adviser. Short-term letting in central Athens is also subject to registration restrictions that have changed repeatedly, so check the current rules before you buy for Airbnb use. We handle the Greek filings with AADE and prepare the documentation your Australian accountant will need.

Key Takeaway: There is no Australia–Greece tax treaty to rely on. Model the Greek tax first, then confirm the Australian treatment before you commit.