In today’s world, people are more mobile than ever. With all the modern advancements in travel, it is becoming harder to control the movement of every individual person. If it’s not possible accurately determine the duration of a particular person’s stay in a particular country, that means big trouble for his status as a tax resident. So many people have the feeling that they stopped being tax residents of certain States because of frequent changes of location — thinking that, therefore, they are not subject to tax regulation and tax control. As a result, this logically leads them to think that they don’t have to pay taxes at all, since they are tax non-residents of the States they have visited for less than 183 days. Unfortunately for them, modern legal systems and modern international law aren’t built that way. Individuals will lose their tax residency status, otherwise this would all lead to mass tax abuse. Most countries of the world include in their laws and international treatie