The number of American citizens and green-card holders severing their ties with the U.S. soared in the latter part of 2009, amid looming U.S. tax increases and a more aggressive posture by the Internal Revenue Service towards Americans living overseas.
According to public records, just over 500 people worldwide renounced U.S. citizenship or permanent residency in the fourth quarter of 2009, the most recent period for which data are available. That is more people than have cut ties with the U.S. during all of 2007, and more than double the total expatriations in 2008.
An Ohio-born entrepreneur, now based in Switzerland, told Dow Jones he is considering turning in his U.S. passport. Mounting U.S. tax and reporting requirements are making potential business partners hesitate to do business with him, he said.
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The stock market plunge of late 2008 and early 2009 may also have played a role in the spike in expatriations. Since 2008, Americans with net worth greater than $2 million have had to pay an exit tax assessed on their assets. With gains reduced or wiped out by the market collapse, those seeking to give up their U.S. citizenship had an opportunity to do so with less exit tax required. 
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