Trending Now: Giving Up U.S. Citizenship / With over 670 U.S. citizens taking the ultimate Tax Strategy in the first 90 days of 2013, it’s shaping up to be the year of the expat.

Robert W Wood for Forbes writes: When CNN reports U.S. Citizens Ditching Passports in Record Numbers, it must be true. Like CNN’s election night coverage, the stats don’t lie. With over 670 U.S. citizens saying sayonara in the first 90 days of 2013, it’s shaping up to be the year of the expat. See also Q1 2013 – Highest Quarterly Number of Expatriates Ever (But . . . )

Want to see if your neighbor is on the list? Check out this federal data. Notables include Mahmood Karzai, brother of Afghanistan’s President Karzai, Isabel Getty, daughter of Getty oil heir Christopher Getty and wife Pia. Maybe there’s someone from your own neighborhood.

Last year the list included Facebook co-founder Eduardo Saverin and wealthy socialite Denise Rich, whose husband Marc was pardoned by President Clinton. See Why Denise Rich Followed Eduardo Saverin’s Expat Lead. Then there was music icon Tina Turner. See Swiss Tina Turner Giving Up U.S. Passport.

Although last year it looked like the departed were falling–see Forget Taxes And Saverin; Actually, Expatriations Are Falling–this year is going the other direction in a big way. In fact, for a period of only three months, it’s the highest number ever. The last 3 months of 2012 numbered only 45, so there may be some spillover effect.

Where they go varies, but many countries are an easier sell in both tax rates and tax systems. America’s controversial worldwide income tax–inflexible and unforgiving–seems to invite greener pastures. See Expats Lobby For Tax on Residence, Not Worldwide Income. But despite grumblings, it is unlikely to change.

So citizens seem to be embracing change themselves. And not just Americans. Previously French and now Russian actor Gérard Depardieu has a low 13% flat rate, even better than Eduardo Saverin’s 18% in Singapore. France’s bloated 75% makes Russia’s 13% seem svelte. In Britain, the number of £1 million a year taxpayers fell by over 60%.

Still, leaving America has a special tax cost. You generally must prove five years of tax compliance in the U.S. Plus, if you have a net worth greater than $2 million or have average annual income for the five previous years of $155,000 or more, you pay anexit tax. You generally pay 15% on any gain, as if you sold your property when you left. There’s an exemption of approximately $668,000.

Citizens aren’t the only ones to suffer. Giving up aGreen Card can cost you too. See High Cost To Go Green: Giving Up A Green Card. And it could get worse. Saverin’s post-Facebook fly-away prompted such outrage that Senators Chuck Schumer and Bob Casey introduced a bill to double that tax to 30% for anyone leaving the U.S. for tax reasons. SeeSenators Go After Eduardo Saverin, Facebook Co-Founder, For Dumping U.S. Passport, Avoiding Taxes.

In recent years, the IRS crackdown on foreign accounts and income has been unprecedented. See FBAR Penalties Just Got Even Worse. Could it get worse? Maybe, and that could make this trend go viral.