Or maybe you love your new country, want to stay there, but you have to apply for citizenship to do so. As many countries don't allow dual citizenship, you wouldn't be "renouncing" your citizenship as much as exchanging it (depending on your point of view, you could also say "upgrading" or "downgrading").
Sooner or later, many expats are going to ask themselves whether or not they should give up their original citizenship, but they're not aware of the process.
I take no stance on whether or not you should give up your citizenship. It's a very personal decision and I couldn't possibly be one to judge, but if you do wish to give up your citizenship, you'll be happy to know that there is now a comprehensive citizenship renunciation guide on the Web. I've read through it and double-checked a lot of the information and it looks solid.
Here are a few key points:
- You do not have have citizenship in another country to renounce (but you'd be an idiot not to).
- You have to apply at an appropriate foreign consulate.
- You do not have to have your taxes paid (but the IRS will come after you later).
- You can't get your citizenship back unless you go through the same painful process as all other immigrants
- You will not be denied reentry to the US, but only to the extent that your new citizenship allows it
Be aware that this is a drastic step. For those who foolishly consider "renouncing" without having another citizenship, that just means you'd be stateless and have nowhere to go. In fact, I'm only aware of two Americans in history who have ever voluntarily become stateless, Mike Gogulski and Garry Davis. It's generally not a pretty position to be in.