A perpetual traveler (also PT, permanent tourist or prior taxpayer) is a person who bases different aspects of their life in different countries, without spending too long in any one place, under the belief that they can reduce taxes, avoid civic duties, and increase personal freedom.
The perpetual traveler idea proposes that individuals live in such a way that they are not considered a legal resident of any of the countries in which they spend time or operate.
The Three Flags Theory is credited to investment pundit Harry D. Schultz, who proposed that everyone should have a second passport and an address in a tax haven and that their assets should be kept outside their home country.
In 1993, they published PT2: The practice: freedom and privacy tactics: A reference handbook by Hill[7] which also went through several editions.
Other books published by Scope and said to have been written by Hill include Banking in silence, The Monaco report and Think like a tycoon.