After your oath ceremony, the immediate list of what to do after becoming a US citizen looks like this: safeguard your Certificate of Naturalization, apply for a U.S. passport, update your Social Security and driver’s license records, register to vote, and, if you are a man between 18 and 25, register with Selective Service within 30 days. A few longer-horizon items matter too, especially worldwide-income taxes and foreign account reporting, because they apply to you now whether or not anyone reminds you.
Protect Your Certificate of Naturalization
The certificate you received at the ceremony is the document every other step depends on. You will hand it over or show it when you apply for a passport, update Social Security, sponsor a relative, or prove citizenship to a government office. Store the original somewhere protected from fire and water, such as a fireproof home safe or a bank safe deposit box. Make good photocopies for everyday reference, but expect agencies to ask for the original.
If the certificate is lost, damaged, destroyed, or needs to reflect a legal name change made after naturalization, you apply for a replacement using Form N-565. The replacement carries the same legal weight as the original. It is a replacement document, not a second certified copy.
Apply for a U.S. Passport
Get a passport even if you have no travel booked. It is universally accepted as proof of U.S. citizenship and doubles as a government photo ID, and unlike your naturalization certificate it is built to be carried.
First-time applicants file Form DS-11 in person at a passport acceptance facility, which is usually a post office, public library, or clerk of court office. Bring your original Certificate of Naturalization, an acceptable photo ID, a photocopy of both, and a passport photo that meets State Department specifications.
An adult passport book costs $130 for the application fee plus a $35 execution fee at the acceptance facility, for a total of $165. Routine processing currently runs four to six weeks, not counting mail time on either end. Paying $60 for expedited service cuts that to roughly two to three weeks. If you have confirmed international travel within 14 days, you can request an urgent appointment at a regional passport agency. Application status is available online at the State Department’s site starting 14 business days after you apply.
Update Your Government Records
Several agencies need to know your status changed, especially if you also changed your name.
Social Security Administration
Start online by requesting a replacement Social Security card. The system will prompt you to schedule an in-person appointment. Bring your Certificate of Naturalization and a current photo ID. The updated card usually arrives by mail within 5 to 10 business days.
Driver’s License or State ID
Visit your state DMV to update citizenship status and any name change on your license or ID. You will generally need the Certificate of Naturalization and your current ID. Fees vary by state and typically fall between $10 and $40.
Trusted Traveler Programs
If you are enrolled in Global Entry, NEXUS, or SENTRI, you must update your citizenship status in person at a Trusted Traveler enrollment center. It cannot be done online or by phone. Many centers accept walk-ins; some require an appointment.
Your Employer and Form I-9
You are not required to tell your employer or update your Form I-9 after naturalizing. USCIS guidance is clear that reverification is never required for U.S. citizens, and an employer who demands proof of citizenship based on national origin may be violating anti-discrimination law. If your prior work authorization had an expiration date, you may choose to let HR know so they do not attempt an unnecessary reverification when that date passes, but the decision is yours.
Register to Vote
To register you must be a citizen, meet your state’s residency requirements, and be at least 18 by Election Day. Many states allow online registration; you can also register at your local election office, the DMV, or by mail.
Deadlines vary widely. Some states cut off registration 30 days before an election, others allow same-day registration on Election Day. Do not wait if your state has an early cutoff. After you register you should receive a voter registration card confirming your enrollment and polling place.
If you live or travel abroad, you can still vote in federal elections through the Federal Voting Assistance Program, using the Federal Post Card Application to register and request a ballot based on your last U.S. address. If your ballot does not arrive in time, the Federal Write-in Absentee Ballot is the backup.
Register With Selective Service Within 30 Days
If you are male and between 18 and 25, federal law requires you to register with the Selective Service System within 30 days of becoming a citizen. This applies regardless of how you acquired citizenship. Registration takes a few minutes at sss.gov.
Failing to register is a federal offense carrying a fine of up to $250,000 and up to five years in prison. Prosecutions are rare in practice, but a man who does not register before turning 26 permanently loses eligibility for federal student financial aid, federal job training programs, and most federal employment. If you are already past 26 and never registered, you will need to give any relevant agency evidence that the failure was not deliberate.
Get Documentation for Your Children
Your children may have become U.S. citizens automatically the moment you naturalized, under the Child Citizenship Act, but only if all four conditions are met: you are the child’s U.S. citizen parent, you have an established parent-child relationship, the child has been lawfully admitted as a permanent resident, and the child lives in the United States in your legal and physical custody. The child must be under 18. Stepchildren do not qualify unless legally adopted.
Automatic citizenship does not generate paperwork on its own. File Form N-600, Application for Certificate of Citizenship, to get documented proof. Without it, your child may struggle later to prove citizenship for a passport, school enrollment, or employment. Current filing fees are on the USCIS fee schedule.
Sponsor Family Members
As a citizen you can petition for certain relatives to immigrate by filing Form I-130. Who qualifies and how long they will wait depends on the relationship.
Immediate relatives face no annual visa cap and get the fastest path. They include:
- Spouses.
- Unmarried children under 21.
- Parents, if you are at least 21.
Other relatives fall into preference categories with annual numerical limits and longer waits:
- First preference (F1): unmarried sons and daughters aged 21 and older.
- Third preference (F3): married sons and daughters of any age.
- Fourth preference (F4): brothers and sisters, if you are at least 21.
Wait times in the preference categories run from several years to over two decades depending on category and the beneficiary’s country of origin. The State Department’s monthly Visa Bulletin shows where the line currently stands. Once USCIS approves the I-130 and a visa number is available, your relative applies for a green card by adjusting status inside the U.S. or through consular processing abroad.
Understand Your Tax Obligations
This is where new citizens most often get caught out. The United States taxes citizens on worldwide income no matter where they live or where the money is earned. That includes U.S. wages, rental income from property in another country, and interest on a foreign bank account. You have a filing requirement even if treaties or foreign tax credits reduce your U.S. bill to zero; to claim those benefits, you have to file.
FBAR (FinCEN Form 114)
If your foreign financial accounts together exceed $10,000 at any point during the year, you must file a Report of Foreign Bank and Financial Accounts. It is filed electronically through the BSA E-Filing System, separate from your tax return. The deadline is April 15, with an automatic extension to October 15. Penalties for not filing are steep, including civil penalties adjusted for inflation each year and potential criminal penalties for willful violations.
FATCA (Form 8938)
Higher-value foreign financial assets may also trigger Form 8938 with your tax return under the Foreign Account Tax Compliance Act. For citizens living in the United States, the threshold is $50,000 in total foreign financial assets on the last day of the year, or $75,000 at any point during the year. For married couples filing jointly, those numbers double to $100,000 and $150,000. Citizens living abroad get significantly higher thresholds: $200,000 at year-end or $300,000 at any point for single filers.
Some people must file both an FBAR and Form 8938. The two forms cover overlapping but not identical categories of assets, and the thresholds differ, so one requirement does not cancel the other. If you held foreign accounts before naturalizing, work through this with a tax professional early.
Dual Citizenship: What Changes on the U.S. Side
U.S. law does not require you to give up your previous nationality. You may legally hold citizenship in more than one country. Your other country’s law may say something different: some countries revoke citizenship automatically when a person naturalizes elsewhere, others require you to notify them or take steps to keep your prior nationality. Check with that country’s embassy or consulate.
On U.S. soil, the U.S. government will treat you exclusively as an American citizen. If you travel to your other country of citizenship on that country’s passport, U.S. consular assistance there may be limited. Enter and leave the United States on your U.S. passport.
Jury Duty and Other Civic Obligations
Citizenship comes with legal duties beyond taxes. You must obey federal, state, and local laws, and when summoned for jury duty you are expected to serve. Courts draw juror pools from voter registration lists and DMV records, so once you have registered to vote and updated your license, expect a summons at some point.