Abstract
The diploma thesis deals with legislation regulating automatic exchange of information in tax matters based on the Common Reporting Standard On Reporting and Due Diligence for Financial Account Information (also known as Common Reporting Standard) usually referred to as a GATCA system and its integration into legal order of the Czech Republic. A main goal of the legislation is to secure higher public incomes for public budgets and to weaken a position of tax havens in relation to tax evasion by taxpayers.
The GATCA system legislation and its integration into legal order of the Czech Republic are evaluated in accordance with this goal. One of the main conclusions of the diploma thesis is considering some possible loopholes of the GATCA system that may be used by taxpayers to avoid duties imposed on them by legislation regulating automatic exchange of information in tax matters and suggesting solutions that should be used to close these loopholes.
The greatest GATCA system's loophole is its relation to the another system of automatic exchange of information in tax matters known as a FATCA system and based on the US federal statute Foreign Account Tax Compliance Act and intergovernmental agreements between the United States of America and other countries because this system is essentially useful only for Internal Revenue Service but not for tax administrators of the other countries. This one-sidedness creates a loophole that may be used by non-american taxpayers to avoid being reported by the GATCA system and thus the United States of America may become the greatest tax haven in the world.