Both relinquishing and renouncing end U.S. citizenship. The difference is when the loss happens and what you have to prove.
You already lost U.S. citizenship in the past. You voluntarily did something that can end citizenship, such as becoming a citizen of another country, with the intention of giving it up. Now you ask the U.S. to formally recognize it.
You give up U.S. citizenship now, by taking an oath in front of a U.S. consular officer abroad.
Which one fits depends on what you did in the past and what you can prove about it.
What do “relinquish” and “renounce” mean?
To relinquish U.S. citizenship is to lose it as a result of a past act, performed voluntarily and with the intention of giving up U.S. citizenship. The law lists the acts that can do this, such as naturalizing in another country, taking a foreign oath of allegiance, or certain foreign government or military service. All seven are explained in The Expatriating Act Explained.
To renounce U.S. citizenship is to give it up through a formal oath of renunciation, signed in person before a U.S. diplomatic or consular officer outside the United States. The oath is the act, and it shows your intent on the spot.
In both cases, the U.S. State Department confirms the loss by issuing a Certificate of Loss of Nationality (CLN).
Relinquishing vs renouncing: side-by-side comparison
| Relinquishing | Renouncing | |
|---|---|---|
| What it is | Getting recognition for a loss of citizenship that happened through a past act | Giving up citizenship now by taking the oath of renunciation |
| How it’s done | Submitting a request (Form DS-4079) with evidence of the past act and your intent at the time, usually followed by an interview | Attending an appointment, signing the oath (DS-4080) and the Statement of Understanding (DS-4081) |
| Where | The act happened wherever you performed it (for example, your naturalization ceremony). The request goes through a U.S. embassy or consulate abroad | In person at a U.S. embassy or consulate outside the U.S.; never by mail or inside the U.S. |
| Proof needed | Proof of the act and of your intent at the time, which is the hard part | Proof of identity and completion of the required renunciation documents. You don’t need to prove you hold another citizenship, although renouncing without one can leave you stateless |
| Date citizenship ended (nationality) | The date of the past act | The date you sign the oath |
| Certificate of Loss of Nationality | Issued if the State Department accepts your claim | Issued once the State Department approves the renunciation |
| Government fee | $450 | $450 (since April 13, 2026) |
| Processing time | Usually several months; can be longer while evidence is reviewed | Usually several months after the appointment |
| Risk of being refused | Higher. If intent can’t be shown, the claim is denied and you remain a U.S. citizen | Low, as long as you act voluntarily and understand the consequences |
| Tax consequence | The date your tax status ends follows separate tax rules and may be later than the nationality date (see When Are You No Longer a U.S. Taxpayer?). Some people may also face the exit tax | Tax status ends on the date you renounce, once the CLN is issued. The same exit tax rules apply |
On mobile, swipe the table sideways to see both columns.
How relinquishment works
To have a past loss of citizenship recognized, you contact a U.S. embassy or consulate abroad and complete Form DS-4079 (Request for Determination of Possible Loss of United States Citizenship); see our guide to Form DS-4079. You then submit evidence of the act and of your intent at the time, and usually attend an interview. The government fee is $450.
A consular officer reviews your claim and forwards it to the State Department in Washington, which decides whether to issue a CLN. If it agrees, the CLN records the date of your original act as the date you lost U.S. nationality.
For nationality purposes, that date can be decades ago. For tax purposes, it often isn’t. Since 2004, U.S. tax law sets its own date, which is usually later. How that works, with examples, is explained in When Are You No Longer a U.S. Taxpayer?
How renunciation works
You book an appointment at a U.S. embassy or consulate abroad, confirm with the consular officer that you understand the consequences, sign the oath of renunciation and pay the $450 fee. The full process is in our complete guide to renouncing U.S. citizenship, and what to bring and expect on the day is in How to Prepare for Your U.S. Renunciation Appointment.
Proving a past relinquishment: what evidence you need
This is where most relinquishment claims succeed or fail. Since 1990, the State Department has presumed that people who naturalize elsewhere, take a routine foreign oath, or take an ordinary foreign government job intended to keep their U.S. citizenship. To relinquish, you have to show the opposite.
Proof of the act
- Your foreign naturalization certificate or citizenship decision, with its date
- The text of any oath of allegiance you took
- Military commission or appointment documents, or a foreign government employment contract, if relevant
Evidence of your intent at the time
- Anything you wrote or said back then showing you meant to give up U.S. citizenship: letters, declarations, statements to officials
- An oath that expressly gave up other allegiances
- Testimony or statements from people who knew your intentions at the time
Conduct after the act that is consistent with your claim
The State Department looks at the overall evidence of your intent, including how you behaved after the act. The following can weaken a relinquishment claim, because they suggest you still considered yourself American:
- renewing or travelling on a U.S. passport;
- entering the U.S. as a U.S. citizen;
- filing U.S. tax returns as a citizen;
- voting in U.S. elections; and
- registering your children as U.S. citizens (a Consular Report of Birth Abroad).
If your evidence is thin or your later conduct points the other way, renouncing is usually the safer route.
Three examples
Claire, naturalized in Canada in 1998
Claire became Canadian in 1998, telling friends and family at the time that she was “done being American”. She never renewed her U.S. passport or entered the U.S. as a citizen. She has the naturalization certificate and letters from that period.
- Why
- The evidence of the act and her intent is strong, and her later conduct is consistent with it. Her CLN would show 1998.
- Children
- If Claire had already lost U.S. citizenship before her children were born, she could not transmit U.S. citizenship to them through herself.
Tom, naturalized in Australia in 2012
Tom became Australian in 2012 mainly so he could vote. He renewed his U.S. passport in 2016 and used it to visit family in Texas.
- Why
- His later conduct shows he kept treating himself as American, so a relinquishment claim would very likely be refused.
Léa, an accidental American
Léa was born in Boston to French parents who moved back to France when she was one. She has never done anything that could end her U.S. citizenship.
- Why
- There is nothing to relinquish. On the tax side, she may qualify for the Relief Procedures for Certain Former Citizens.
Which path fits you? A quick checklist
May fit if all of these are true
- You performed one of the acts that can end U.S. citizenship (most often, naturalizing elsewhere as an adult).
- You did it voluntarily and intended at the time to give up U.S. citizenship.
- You can show evidence of that intent.
- Your conduct after the act is consistent with your claim that you intended to give up U.S. citizenship. For example, you stopped using your U.S. passport or otherwise presenting yourself as a U.S. citizen.
Is the better fit if any of these is true
- You never performed such an act, for example if you are an accidental American.
- You did, but you didn’t intend to give up U.S. citizenship then, or you can’t prove it.
- You kept using your U.S. passport or acting as a U.S. citizen afterwards.
- You want a clear, uncontested date and the most predictable outcome.
Depending on when your expatriation occurred, you may need to file a final U.S. tax return and Form 8854. Form 8854 can be required even if you don’t have to file an income tax return, in which case it is filed on its own. Different rules apply to people who relinquished citizenship before June 4, 2004. See When Are You No Longer a U.S. Taxpayer? for the rules that apply to you.
Not sure which path fits you?
Book a 20-minute consultation with one of our Enrolled Agents. We’ll look at what you did, when you did it, and what each path would mean for your U.S. taxes.
$50 consultation fee, fully deducted from your tax preparation fee if you become a client.
