Renunciation & Loss of US Citizenship (INA 349)

TL;DR

What expatriation means

EXPATRIATION is the legal term for losing U.S. nationality. It covers two related but distinct ideas: RENUNCIATION, which is the deliberate, formal act of giving up citizenship on purpose, and LOSS through other expatriating acts, where citizenship ends because a person voluntarily did something the statute treats as incompatible with remaining a citizen while intending to give up that citizenship.

The framework matters because U.S. citizenship is not something that can be casually or accidentally lost. Modern law — shaped heavily by the Supreme Court — treats citizenship as a protected status. The government cannot take it from you as a punishment or by administrative decision alone; the loss has to flow from your own voluntary, intentional choice. That protective principle runs through every part of INA §349.

The core rule: voluntary act plus intent to relinquish

INA §349(a) [8 U.S.C. §1481(a)] states that a U.S. national — whether by birth or naturalization — loses nationality by VOLUNTARILY performing one of the listed acts WITH THE INTENTION OF RELINQUISHING United States nationality. Read that carefully, because it contains two separate requirements that must BOTH be satisfied:

The act must be voluntary. An expatriating act performed under duress, coercion, or without free will does not cause loss of nationality.

The person must intend to relinquish citizenship. Doing one of the listed acts is not enough on its own. The person must have performed it specifically intending to give up U.S. nationality. Someone who obtains foreign citizenship but intends to keep their U.S. citizenship has not expatriated.

This two-part test is the heart of the statute. It is why a person can hold dual citizenship, take certain foreign oaths, or work abroad without automatically losing U.S. citizenship — the intent to relinquish is missing. For the standards applied to naturalization applicants, which reflect the same seriousness about citizenship, see our guide to good moral character standards.

The expatriating acts under §349(a)

Section 349(a), as codified at 8 U.S.C. §1481, lists the specific acts that, done voluntarily and with intent to relinquish, cause loss of nationality:

§349(a)(1) — obtaining naturalization in a foreign state, on one's own application, after age 18.

§349(a)(2) — taking an oath, affirmation, or other formal declaration of allegiance to a foreign state or its political subdivision, after age 18.

§349(a)(3) — entering or serving in the armed forces of a foreign state if those forces are engaged in hostilities against the U.S., or serving as a commissioned or non-commissioned officer.

§349(a)(4) — accepting or serving in an office, post, or employment under a foreign government, after age 18, under conditions the statute specifies (such as requiring an oath or being a national of that state).

§349(a)(5) — making a FORMAL RENUNCIATION of nationality before a U.S. diplomatic or consular officer in a foreign state, in the form prescribed by the Secretary of State.

§349(a)(6) — making, IN THE UNITED STATES, a formal written renunciation during a state of war, if the Attorney General approves it as not contrary to national defense.

§349(a)(7) — committing an act of treason, bearing arms against, or attempting to overthrow the U.S. by force, if convicted.

Formal renunciation under §349(a)(5)

The clearest and most deliberate form of expatriation is FORMAL RENUNCIATION under §349(a)(5). This is the path a person takes when they specifically want to give up U.S. citizenship. It requires appearing IN PERSON before a U.S. diplomatic or consular officer in a FOREIGN COUNTRY and taking a formal oath of renunciation in the prescribed form.

Two features make this provision distinct. First, it must be done ABROAD — formal renunciation of this kind cannot be accomplished inside the United States (the only in-country renunciation, under §349(a)(6), is limited to wartime with Attorney General approval). Second, it is a SERIOUS and generally IRREVOCABLE act. Once a person renounces and the loss is finalized, they are no longer a U.S. citizen and generally cannot undo it. The seriousness is why consular officers ensure the person understands the consequences — including that renouncing does not erase tax obligations or potential criminal liability already incurred. Current State Department procedure generally includes reviewing required information, completing forms, attending two consular interviews abroad, and taking the oath of renunciation in person.

The constitutional foundation: Afroyim and Vance

The entire structure of §349 rests on two U.S. Supreme Court decisions that transformed how the law treats loss of citizenship.

Afroyim v. Rusk (1967) held that Congress cannot revoke U.S. citizenship without the citizen's assent — citizenship is a constitutionally protected status under the 14th Amendment, and a citizen has a right to remain a citizen unless they voluntarily relinquish it. This overturned earlier law that had allowed automatic loss for certain acts like voting in a foreign election.

Vance v. Terrazas (1980) built on Afroyim, holding that the government must prove not only that a person voluntarily committed an expatriating act, but that they did so with the specific INTENT to relinquish citizenship. Intent cannot simply be assumed from the act itself.

Together these cases are why the statute's two-part test — voluntary act plus intent to relinquish — is not just statutory language but a constitutional requirement. For how deportation and removal interact with citizenship status, a different but related area, see our guide to deportation and removal bars.

Burden of proof and the Certificate of Loss of Nationality

INA §349(b) addresses proof. It creates a PRESUMPTION that a person who performed an expatriating act did so VOLUNTARILY — but that presumption can be rebutted by the person showing, by a PREPONDERANCE OF THE EVIDENCE, that the act was not voluntary. Separately, consistent with Vance v. Terrazas, the intent to relinquish must be established by a preponderance of the evidence.

When loss of nationality is determined, the person receives a CERTIFICATE OF LOSS OF NATIONALITY (CLN) — the official document confirming that U.S. nationality has ended. A consular officer prepares it, and it is approved by the Department of State. The CLN is the formal proof of expatriation, just as a Certificate of Citizenship or passport is proof of citizenship. For the ceremony at the opposite end of the citizenship journey, see our guide to the naturalization oath ceremony.

Frequently Asked Questions

What is expatriation under INA §349?

Expatriation is the legal loss of U.S. nationality under INA §349 (8 U.S.C. §1481). It happens only when a citizen voluntarily performs one of the acts listed in §349(a) with the intention of relinquishing U.S. nationality. Both voluntariness and intent to relinquish are required. The listed acts include foreign naturalization after 18, an oath of allegiance to a foreign state, certain foreign military or government service, and formal renunciation before a U.S. consular officer abroad.

Can the government take away my citizenship against my will?

No. Under the Supreme Court decisions Afroyim v. Rusk (1967) and Vance v. Terrazas (1980), U.S. citizenship is constitutionally protected and cannot be revoked without the person's own voluntary intent to relinquish it. The government must prove both that the person voluntarily committed an expatriating act and that they intended to give up citizenship. Citizenship cannot be stripped as a punishment or by administrative decision alone.

What are the two requirements for losing citizenship?

Under §349(a), loss requires that the person (1) voluntarily performed one of the listed expatriating acts, and (2) did so with the intention of relinquishing U.S. nationality. Both must be present. Performing a listed act — such as obtaining foreign citizenship — does not cause loss if the person intended to keep their U.S. citizenship. This is why people can hold dual citizenship without losing their U.S. nationality.

How does formal renunciation work?

Formal renunciation under §349(a)(5) requires appearing in person before a U.S. diplomatic or consular officer in a foreign country and taking a formal oath of renunciation in the prescribed form. It generally cannot be done inside the United States (the only in-country renunciation, under §349(a)(6), is limited to wartime with Attorney General approval). It is a serious and generally irrevocable act, and it does not erase tax obligations or criminal liability already incurred.

What is a Certificate of Loss of Nationality?

A Certificate of Loss of Nationality (CLN) is the official document confirming that a person's U.S. nationality has ended. A consular officer prepares it and the Department of State approves it. It is the formal proof of expatriation, just as a Certificate of Citizenship or U.S. passport is proof of citizenship. A person who loses nationality — by renunciation or another expatriating act with intent to relinquish — receives a CLN as documentation.

Does renouncing citizenship cancel my tax or legal obligations?

No. Renouncing U.S. citizenship under §349(a)(5) does not erase obligations already incurred. A person who renounces cannot thereby avoid repayment of financial obligations, and renunciation does not shield someone from possible prosecution for crimes committed in the United States or as a U.S. citizen abroad. Consular officers ensure that anyone renouncing understands these consequences, because the act is serious and generally irrevocable.

Bottom Line

Renunciation and loss of U.S. citizenship — EXPATRIATION — is governed by INA §349 (8 U.S.C. §1481), and its defining principle is that loss requires a VOLUNTARY expatriating act done WITH THE INTENTION of relinquishing U.S. nationality. Both elements are mandatory. The acts listed in §349(a) include foreign naturalization after 18, an oath of allegiance to a foreign state, certain foreign military or government service, FORMAL RENUNCIATION before a U.S. consular officer abroad under §349(a)(5), wartime written renunciation inside the U.S. under §349(a)(6), and treason. The framework is anchored by Afroyim v. Rusk (1967) and Vance v. Terrazas (1980), which make citizenship a constitutionally protected status that cannot be taken without the person's voluntary intent to give it up. Section 349(b) presumes voluntariness (rebuttable by a preponderance of the evidence), while intent to relinquish must also be proven by a preponderance. Formal renunciation is deliberate, must be done ABROAD before a consular officer, and is SERIOUS and generally IRREVOCABLE — and it does not erase tax or criminal obligations. Loss of nationality is documented with a CERTIFICATE OF LOSS OF NATIONALITY (CLN). For related topics, see our guides to good moral character standards, deportation and removal bars, and the naturalization oath ceremony.

Source: 8 U.S.C. §1481 (INA §349) — Loss of nationality · 8 U.S.C. §1481 — Loss of nationality (full text) · U.S. Department of State — Renunciation of U.S. Nationality Abroad