How billionaires like Jeff Bezos, Elon Musk, and Warren Buffett pay so little in income tax compared to their massive wealth—sometimes, even nothing.

Ten years ago, the tax agency formed a special team to unravel the complex tax-lowering strategies of the nation’s wealthiest people. It never had a chance.

The Salesforce founder has donated a fortune to right capitalism’s wrongs, and he thinks his fellow billionaires should too. Why can’t we just be grateful?

How pop-up tax preparers make billions off the poor.

An eight-year campaign to slash the agency’s budget has left it understaffed, hamstrung and operating with archaic equipment. The result: billions less to fund the government. That’s good news for corporations and the wealthy.

Hervé Falciani, a computer engineer working at HSBC, stole the bank’s list of secret accounts. But was he out to expose tax cheats or get rich himself? Perhaps both.

Philanthropist and private equity mogul David Rubenstein is lauded for his patriotic donations, including half the cost of repairing the Washington Monument. He also helped save a controversial tax break billionaires love.

A profile of the policy wonk who shone the light and turned the tide on overseas tax havens.

The history of the City of London Corporation, a “prehistoric monster which had mysteriously survived into the modern world.”

When U.S. customs law met abstract art in the form of a bird, “shimmering and soaring toward the ceiling while the lawyers debated whether it was an ‘original sculpture’ or a metal ‘article or ware not specially provided for’ under the 1922 Tariff Act.”

On January 1st, 2011, the U.S. estate tax will jump from zero to around 50%, which gives a lot of very rich elders (or perhaps more accurately, their heirs) millions of dollars in incentive to expedite death.