Immigration Guide · GWP Immigration Law
Can a Naturalized Immigrant Lose American Citizenship? The Truth About Denaturalization
It’s possible, but only if you obtained citizenship through naturalization and the government proves it was illegal or obtained through material misrepresentation.
Last updated: July 2, 2026 · Reviewed by: Kathia QuirosThe Key Point
Your Citizenship Isn’t a Permanent Shield
Naturalized citizenship isn’t always untouchable if it was obtained illegally or through material misrepresentation. If you lied on your naturalization application, or unknowingly failed to meet a requirement, the government can come knocking years later, long after you’ve forgotten about that interview.
A Recent Shift
Why Denaturalization Isn’t So Rare Anymore
Because in 2020 the Department of Justice created a section dedicated exclusively to these cases.
Since 2020, when the Department of Justice opened a section dedicated exclusively to denaturalization cases, this issue has stopped being a legal rarity and become a government priority, backed by federal resources, according to the USCIS Policy Manual.
The Consequences
What Can You Lose If the Government Wins a Denaturalization Case?
If the government wins, you could lose your citizenship, your passport, your right to vote, benefits as a citizen, and become exposed to deportation.
Here’s something important to keep in mind: this can only happen to you if you became a citizen through naturalization. Denaturalization targets citizenship obtained through naturalization — not citizenship acquired by being born in the United States. But if you naturalized, it can happen to you through two different paths: civil or criminal.
| Type of Case | What It Means | Time Limit | What Can Happen |
|---|---|---|---|
| Civil Denaturalization | The government files a lawsuit in federal court seeking to revoke your citizenship because, in the government’s view, the naturalization was illegal or was obtained through concealment or material misrepresentation. | The naturalization revocation statute doesn’t set a specific time limit for this type of case. Because of that, the government can bring a civil action many years later. | If the government wins, you could lose your citizenship, your passport, your right to vote, and your ability to petition for family members as a citizen. You could also become exposed to deportation proceedings, depending on the case. |
| Criminal Denaturalization | The government brings a criminal case related to having obtained citizenship or naturalization unlawfully. | This path does have criminal statute-of-limitations rules, which need to be reviewed with an attorney based on the specific charges and dates of the case. | If there’s a conviction under this path, federal law can order that your citizenship be taken away along with the sentence. |
Source: 8 U.S. Code § 1451 and 18 U.S. Code § 1425
A Case From My Practice
A Case From My Practice
I had a client, a man who naturalized more than fifteen years ago. Hardworking, with his own business, with children already born here. During his citizenship interview, many years ago, he was asked if he had ever been arrested. He said no, because in his mind, since the case had been closed without formal charges, it didn’t count as an arrest. Years later, USCIS reviewed his file during a routine investigation, as part of a program called Operation Janus, which digitized old fingerprints to search for fraud in older naturalization cases. They found the old arrest, buried in a file no one had looked at in two decades. A letter arrived.
The man panicked. He called me thinking they were going to take everything away — the house, the business, the family. He thought there was nothing left to do. But a mistake like that doesn’t always mean you lose your citizenship. It all comes down to whether that lie was material — meaning, had the truth been known at the time, would it have changed the decision to grant citizenship. We worked his case, gathered his complete file, and proved that the old arrest had nothing to do with his original eligibility. Today, he’s still a citizen. Just like that.
The Fine Print
Is It True That a Naturalized Citizen Is No Longer at Any Risk?
No. A material lie in your naturalization can lead to it being revoked years later.
Many people tell me: “but I already have my citizenship, nobody can take anything from me now.” That’s not correct. And now you know it. The Supreme Court, in Maslenjak v. United States, made clear that a lie only counts toward stripping someone’s citizenship if it had what the Court itself called a “natural tendency to influence” the decision to approve the naturalization. That means not every lie leads to denaturalization, and not every mistake puts you at risk.
But I’ll tell you this with the same conviction: every lie, every mistake, every doubt about your case needs to be reviewed by an attorney. Not by you alone at home, guessing, searching the internet at two in the morning. I don’t recommend that to anyone. And if you’ve already received a letter or a lawsuit, you’re not defenseless either. Real defenses exist, and we can build a strategy depending on the case.
Action Plan
What Should You Do If This Worries You?
Gather your N-400, A-File, criminal history, and travel record, don’t destroy documents, and consult an attorney before responding.
If reading this got you thinking about your own case, here’s what you should do — and how to actually be prepared.
Gather Your Key Documents
Gather your certificate of naturalization and a complete copy of your original Form N-400.
Request Your A-File
Request your complete immigration file, known as your A-File, through a FOIA request. That file will tell you exactly what the government knows about you.
Collect Complete Histories
Collect your certified criminal history, even for old cases, along with your complete record of travel outside the country.
Don’t Destroy Anything
Don’t destroy any documents — not the ones that seem old, and not the ones that make you uncomfortable. Any document could become part of your defense.
Don’t Respond Alone
Don’t respond to any letter from USCIS or the Department of Justice without legal advice first. Move quickly, because response deadlines tend to be short, and a poor response can complicate the entire process.
🕊
Protecting your citizenship is protecting your future.
Every naturalization case has a story. If something in your past worries you, don’t wait for the government to come knocking. A timely consultation can make all the difference. Let me review your case and give you the peace of mind you deserve.
📞 Call GWP: 702-737-7717 GWP Immigration Law · gwp.law
Kathia Quirós, Immigration Attorney
Founder, GWP Immigration Law · Inmigrando with Kathia
This article is for informational purposes only and does not constitute legal advice. Immigration law is complex and highly fact-dependent. Consult a qualified immigration attorney before taking any action.
Sources and References
- Open Society Justice Initiative — Unmaking Americans: Insecure Citizenship in the United States (2019)
- Maslenjak v. United States, 582 U.S. 335 (2017) — U.S. Supreme Court
- 18 U.S. Code § 1425 — Procurement of Citizenship or Naturalization Unlawfully
- 8 U.S. Code § 1451 — Revocation of Naturalization
- USCIS Policy Manual, Volume 12, Part L, Chapter 1 — Purpose and Background


