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Sweden
The USA still as the highest national income of any country in the world.
Luxembourg.
Sri Lanka
As of 2005 The highest personal income tax in any country was Belgium at almost 56% If its corporate income tax you are asking about that would be Japan with the US ranked a close second around 38%-39%
Saudi Arabia and the UAE have the highest disposable income in the world, averaging over $220,000. Source: http://www.arabianbusiness.com/496677-the-rise-of-disposable-income
South Africa.
india
Luxembourg has the highest national income, with Norway second and the United States third.
There are as many as there are countries within Europe! You have to be more specific about which country's income tax you want to know more about.
Which country has the highest income for individual person
china,India,Indonesia,japan,and Korea