They don't need to tap into your travel/passport activities, just your bank accounts.
> Since 2011, the EU has had a system for exchanging tax and financial accounts information between Member States. Tax authorities in the EU have also agreed to cooperate more closely to tax their taxpayers correctly and combat tax fraud and tax evasion.
> Since 2011, the EU has had a system for exchanging tax and financial accounts information between Member States. Tax authorities in the EU have also agreed to cooperate more closely to tax their taxpayers correctly and combat tax fraud and tax evasion.