Dual Citizenship

#What this actually means

Dual citizenship means you're a full citizen of two countries at the same time. You hold two passports, you have rights in both places, and neither country's citizenship cancels out the other. It's more common than people think — millions of Americans are also citizens of another country.

The U.S. technically allows dual citizenship, but it doesn't formally encourage it. The government's official position is basically: "We acknowledge it exists." There's no law against it, and becoming a U.S. citizen doesn't automatically revoke your other citizenship (though some other countries may handle it differently on their end).

#Do I have to give up my other citizenship?

No. The Oath of Allegiance you take during naturalization includes language about renouncing foreign allegiances, but the U.S. government doesn't enforce this as an actual requirement to surrender your other passport. In practice, you walk out of your oath ceremony as a citizen of both countries.

That said, check the rules in your other country. Some countries (like India and China) don't allow dual citizenship on their end, so becoming a U.S. citizen may mean losing your original citizenship by their rules — not ours.

#Key things to know

• Taxes — the U.S. taxes its citizens on worldwide income, regardless of where you live. If you're also a citizen of a country with its own tax obligations, you may need to file in both places. Tax treaties and foreign tax credits can help avoid double taxation, but you'll want a tax professional who understands both systems.
• Passport use — you must enter and leave the U.S. on your U.S. passport. When traveling to your other country of citizenship, you'll typically use that country's passport. Switching passports at connecting airports is normal and expected.
• Military service — some countries require military service from their citizens. If your other country has mandatory service, dual citizenship could create a conflict. This is rare but worth checking.
• Security clearances — dual citizenship doesn't disqualify you from a security clearance, but it will come up during the investigation. Some roles may ask you to renounce the other citizenship as a condition of the job.

#Where this comes up in the naturalization process

This is one of the most common questions naturalization applicants ask, usually right before they file Form N-400: "Will I lose my [country] citizenship?" The short answer for the U.S. side is no. But the full answer depends on the other country's laws.

If keeping your original citizenship matters to you — and for many people it does, for family, property, or identity reasons — research your home country's rules before your oath ceremony. An immigration attorney can help you understand the implications on both sides.