(http://www.irs.gov/Individuals/International-Taxpayers/U.S.-...) -- "Your worldwide income is subject to U.S. income tax, regardless of where you reside."
(http://www.irs.gov/Individuals/International-Taxpayers/U.S.-...) -- "Your worldwide income is subject to U.S. income tax, regardless of where you reside."
I'm an American who has lived in The Netherlands since 2002. I engage a competent tax preparer every year and pay through the nose for him, you should expect to do the same. When I last lived in the USA my tax return was 2-4 pages. Now it's over 70 pages long and incredibly complex. It's just something you have to deal with if you live overseas.
It may take several months, or more than a year, for the State Department to issue you your Certificate of Loss of Nationality (CLN). However, the effective date of your loss of citizenship is the day you signed the papers and swore your oath of renunciation at the Embassy or Consulate.
You are only required to file taxes with the IRS for the year you renounced, and only for whatever you earned up to the date of your renunciation. Before the HEART Act of 2008, you may have been required to continue filing, and paying US taxes. However, that has now been replaced with a one-time exit tax on unrealized gains, for "covered expatriates" (http://en.wikipedia.org/wiki/Expatriation_tax).
http://www.irs.gov/Individuals/International-Taxpayers/Forei...
http://www.irs.gov/Individuals/International-Taxpayers/Forei...
I've seen it happen.
Not that I would recommend it, however.
Source: I'm an international tax lawyer and have 18 expatriation projects open in my office right now.
I personally know someone here in Paraguay who has done it. He's now stateless. The Embassy highly suggests that you have another citizenship. However, they will accept a renunciation if you don't have one.