Liberal billionaire George Soros has avoided paying billions in federal taxes by transferring assets to Ireland, a corporate tax haven, Bloomberg reported on Thursday.

Soros "had amassed $13.3 billion" by deferring taxes on fees paid by his hedge fund's clients, according to Bloomberg. Efforts by U.S. lawmakers to close what some described as a loophole would have generated an additional $6.7 billion in tax revenue from Soros' trading operation.

Just before Congress closed the loophole, Soros transferred assets to Ireland—a country seen by some at the time as a possible refuge from the law. The filings show for the first time the extent to which Soros's almost $30 billion fortune—he ranks 23rd on the Bloomberg Billionaires Index—came from finding ways to delay taxes and reinvesting the money in his fund. […]