Individuals will be checked based on the pictures they post on FB and Insta showing them in luxury vehicles, homes, yachts etc.
With regards to companies, the Finance Ministry and the Independent Public Revenue Authority (AADE) is to catch taxpayers who, through their Facebook and Instagram accounts, market various products at tempting prices, but without declaring the specific transactions to the tax office as a result of which they do not pay VAT and income tax.
Source: www.keeptalkinggreece.com