If he earns more money, his deductions will continue to be reduced.

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Recruited in 1999, Harl has now published eight courses with the Teaching Company, including The World of Byzantium and Rome and the Barbarians. (Harl recently whipped up a curriculum on Vikings because Hidalgo's research suggested that it would be a popular course.) Harl admits he earns more from his courses sold by Hidalgo (and related speaking engagements) than from Tulane.

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If the Bush tax cuts expire, he will pay about a nickel more in taxes on the dollar of salary he earns each year but not a penny more on his billions of appreciation.

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The more of a company's products the player uses, the more he earns.

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Other than the Olympic Games, Mr. Bolt hasn't appeared in a race in Britain since 2009, citing stringent taxation laws which mean he would end up paying more in tax than he earns from competing.

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Today, Carpenter earns less than he made at Carrier, but he has more time with his family.

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