Can U.S. Citizenship Be Revoked? 6 Grounds for Denaturalization
One of the most anxious questions in immigration is whether U.S. citizenship can be taken away. The honest answer has two parts. For people who acquired citizenship at birth, it essentially cannot be revoked against their will. For naturalized citizens, it can — through a court process called denaturalization — but only on specific, narrow grounds tied to how the citizenship was obtained. With denaturalization cases increasing in 2026, here is what actually triggers it.
1. Concealment or misrepresentation in the naturalization process
The most common ground is obtaining citizenship by willfully misrepresenting or concealing a material fact during the application or interview. If a person hid a disqualifying fact — a criminal conviction, a prior removal order, a false identity — and that concealment was material to the decision, the government can ask a court to undo the naturalization. The misrepresentation must have actually mattered to eligibility.
2. Illegal procurement of naturalization
Citizenship is "illegally procured" if the person was never actually eligible in the first place — for example, they did not meet the continuous-residence or physical-presence requirements, lacked good moral character during the statutory period, or were not a lawful permanent resident as required. Even without an intentional lie, citizenship granted to someone who did not qualify can be revoked.
3. Membership in barred organizations after naturalizing
A narrow ground applies if, within five years of naturalizing, a person joins or affiliates with certain organizations (such as those advocating the violent overthrow of the U.S. government) in a way that is legally treated as evidence the Oath of Allegiance was taken in bad faith. This ground is rarely used but remains on the books.
4. Dishonorable military discharge after naturalizing through service
People who naturalize on the basis of honorable U.S. military service can face denaturalization if they are separated under dishonorable conditions before completing five years of honorable service. Because the citizenship was tied to the service, failing the service condition can unwind it.
5. Refusing to testify before Congress (a historical ground)
An old statutory ground allows denaturalization where a person, within ten years of naturalizing, refuses to testify before a congressional committee about subversive activities. It is essentially never invoked today but illustrates that the grounds are statutory and specific — not open-ended.
6. What denaturalization is NOT
Crucially, citizenship cannot be revoked simply for committing a crime after you naturalize, for unpopular speech, or for living abroad. A naturalized citizen who commits an offense years later is prosecuted like any other citizen — not denaturalized — unless the crime reveals that the original naturalization was fraudulent. Born U.S. citizens are not subject to denaturalization at all; they can only lose citizenship by voluntary renunciation or expatriating acts done with intent to give up citizenship.
The Bottom Line
U.S. citizenship is extraordinarily secure for those born citizens and for naturalized citizens who qualified honestly. Denaturalization is a court process reserved for cases where citizenship was obtained through fraud, concealment, or ineligibility — not a tool for punishing later conduct. If you are worried about something in your naturalization history, or you have received any notice questioning your status, speak with a licensed immigration attorney immediately rather than ignoring it.