How to Prove You Are a U.S. Citizen: Passport, Birth Record, Forms

To prove you are a U.S. citizen, you need one of five documents: a valid U.S. passport, a certified U.S. birth certificate, a Consular Report of Birth Abroad, a Certificate of Naturalization, or a Certificate of Citizenship. Any one of them is accepted as primary evidence. Which one you pursue depends on how you became a citizen, what paperwork you already have, and what you need the proof for.

Which Document Fits Your Situation

If you were born in the United States, your certified birth certificate is your baseline proof, and a passport built on top of it is the most portable form of ID for federal and international purposes.

If you were born abroad to at least one U.S. citizen parent, you likely acquired citizenship at birth. A Consular Report of Birth Abroad documents that, and a Certificate of Citizenship issued through Form N-600 is the domestic equivalent.

If you are a lawful permanent resident planning to become a citizen, you go through naturalization on Form N-400 and receive a Certificate of Naturalization at your oath ceremony.

If you already have a birth certificate or a naturalization certificate and simply need widely recognized proof, applying for a passport is usually the fastest practical step.

Applying for a U.S. Passport

A passport is accepted almost everywhere proof of citizenship is required, from federal employment verification to international travel.

First-Time Applications

First-time applicants use Form DS-11 and must apply in person at a passport acceptance facility such as a post office or county clerk’s office.¹ You’ll bring:

Evidence of U.S. citizenship: an original, certified birth certificate with the issuing authority’s seal, a previous full-validity U.S. passport, a Consular Report of Birth Abroad, or a Certificate of Naturalization or Citizenship. Digital or mobile birth certificates are not accepted.
Photo identification, most commonly a valid driver’s license, plus a photocopy of the front and back.
One color 2×2-inch passport photo taken recently and meeting the State Department’s composition requirements.

An authorized agent at the facility reviews your documents, witnesses your signature, and forwards everything to a passport agency for processing.

Renewals

If your most recent passport was issued when you were 16 or older, is undamaged, and was issued within the last 15 years, you can renew by mail using Form DS-82, and eligible applicants can also renew online.²

Fees

An adult first-time passport book costs $130 plus a $35 facility acceptance fee, for a total of $165. A passport card alone is $30 plus the $35 fee. Children under 16 pay $100 for a book plus the $35 fee. Renewals by mail are $130 for a book or $30 for a card, with no acceptance fee.³ Expedited processing adds $60, and one-to-three-day shipping after issuance is an extra $22.05.²

Processing Times

Routine processing takes four to six weeks and expedited takes two to three weeks. Neither figure includes mailing, which can add roughly two weeks in each direction. For urgent travel within 14 calendar days, you can make an appointment at a regional passport agency.⁴

Requesting a Certified U.S. Birth Certificate

Birth records are held at the state or local level. You’ll contact the vital records office in the state or county where you were born, usually a state health department or county clerk’s office.

To locate your record you’ll provide your full name at birth, date and place of birth, and your parents’ full names, along with valid photo ID. If you’re requesting someone else’s certificate, expect to show proof of your relationship.

Most offices accept requests online, by mail, or in person. Fees generally run from about $10 to $35 per certified copy. In-person requests can sometimes be filled the same day, while mail orders often take four to six weeks. Many states also work with authorized third-party vendors that add a processing fee on top of the certificate fee. Check your state’s vital records website for the specific forms and payment methods before submitting a request.

Consular Report of Birth Abroad

If your child was born in another country and at least one parent was a U.S. citizen at the time of birth, a Consular Report of Birth Abroad (CRBA) documents that the child acquired U.S. citizenship at birth. It carries the same legal weight as a domestic birth certificate for proving citizenship.⁵

CRBAs are issued for children under 18. The U.S. citizen parent whose citizenship passes to the child must be named on the document. You apply at a U.S. embassy or consulate, and most locations let you start the process online through the MyTravelGov portal. The application fee is $100. In some situations, such as when only one parent is a U.S. citizen or the citizen parent cannot appear in person, you’ll also need Form DS-5507.⁵

A replacement CRBA costs $50 through the Department of State.⁶

Certificate of Citizenship (Form N-600)

Form N-600 is for people who are already U.S. citizens but need official documentation of that fact. The most common situation is someone born abroad to a U.S. citizen parent who acquired citizenship at birth and wants a domestic certificate beyond a CRBA or passport.⁷

You’ll file Form N-600 with USCIS along with your birth certificate, evidence of your U.S. citizen parent’s citizenship, and any relevant marriage certificates. If you’re claiming citizenship through a parent, you may also need to prove that parent lived in the United States for a required period before your birth. Acceptable evidence includes school or employment records, property deeds, military records, Social Security quarterly reports, and sworn statements from people with direct knowledge of the parent’s residence.⁸

The filing fee is $1,385 by paper or $1,335 online. There is no fee for current or former military service members filing for themselves, or for children who are the subject of a qualifying adoption. An interview may be required, and if approved, USCIS issues the Certificate of Citizenship.⁹

Certificate of Naturalization (Form N-400)

Naturalization is the path to citizenship for lawful permanent residents, and the Certificate of Naturalization you receive at the oath ceremony is your permanent proof of citizenship.

Eligibility

You generally need to have held a green card for at least five years and lived continuously in the United States during that period. If you’re married to a U.S. citizen, the residency requirement drops to three years. You must also have been physically present in the country for at least 30 months out of the five-year period, or 18 months out of three years for qualifying spouses. Absences longer than six months can disrupt continuous residence. You also need to have lived in the USCIS district or state where you’re filing for at least three months before submitting.¹⁰

Filing

Form N-400 can be filed online or by mail. You’ll need a copy of both sides of your Permanent Resident Card, one passport-style photo, and documentation of your marital status, any name changes, and criminal history if applicable. Foreign-language documents require certified English translations.¹¹

The filing fee is $760 by paper or $710 online. Applicants with documented household income at or below 400 percent of the Federal Poverty Guidelines can file at a reduced $380. Qualifying current or former members of the U.S. armed forces pay nothing. Full fee waivers are available through Form I-912 with supporting documentation.⁹

What Happens After You File

USCIS schedules a biometrics appointment at a local Application Support Center to collect your fingerprints, photo, and signature for background checks.¹² At the interview, a USCIS officer reviews your application and administers an English test covering reading, writing, and speaking along with a civics test on U.S. history and government. Exemptions and waivers exist for applicants with certain physical or developmental disabilities.¹³ If you fail any portion of a test, USCIS reschedules you 60 to 90 days later for a second attempt; failing that retest results in denial.¹⁴

You are not a U.S. citizen until you take the Oath of Allegiance. At that ceremony, USCIS issues your Certificate of Naturalization.¹³

Replacing Lost or Damaged Documents

If your passport is lost or stolen, report it right away through the State Department’s online tool or Form DS-64. Reporting it cancels the passport permanently, even if you later find it. You then apply for a replacement in person using Form DS-11, the same way a first-time applicant does. Include a copy of any police report you filed.¹⁵

To replace a lost, damaged, or stolen Certificate of Naturalization or Certificate of Citizenship, file Form N-565 with USCIS online or by mail. If you file by mail, USCIS no longer accepts personal checks or money orders from most applicants; payment is by credit card using Form G-1450 or by direct bank transfer using Form G-1650.¹⁶

If You Don’t Have Standard Documents

Not everyone has a birth certificate. Hospital fires, incomplete record-keeping, and home births leave some people born in the United States without the standard paperwork. The federal government recognizes tiers of alternative evidence.

The strongest alternatives are documents created shortly after birth, generally within five years. Baptismal certificates and similar religious records fall into this category. Hospital birth records on official letterhead created near the time of birth are another option, though a souvenir birth announcement from the hospital doesn’t count.¹⁷

If none of those exist, federal or state census records showing a U.S. place of birth can work, particularly for people born between 1900 and 1950. These require submitting Form BC-600 to request a search of census records. The further you get from primary evidence, the more documentation you’ll need and the more scrutiny your application will receive. If you’re working with limited records, starting through the passport application is often the practical route, since the State Department has established procedures for evaluating secondary evidence.¹⁸

1
U.S. Department of State. Apply for Your Adult Passport
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U.S. Department of State. Renew Your Passport by Mail
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U.S. Department of State. Passport Fees
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U.S. Department of State. Processing Times for U.S. Passports
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U.S. Department of State. Birth
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eCFR. Part 22 Schedule of Fees for Consular Services – Department of State and Foreign Service
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U.S. Citizenship and Immigration Services. N-600, Application for Certificate of Citizenship
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U.S. Citizenship and Immigration Services. Form N-600, Instructions for Application for Certificate of Citizenship
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U.S. Citizenship and Immigration Services. G-1055 Fee Schedule
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U.S. Citizenship and Immigration Services. Continuous Residence and Physical Presence Requirements for Naturalization
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U.S. Citizenship and Immigration Services. Application for Naturalization
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U.S. Citizenship and Immigration Services. Preparing for Your Biometric Services Appointment
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U.S. Citizenship and Immigration Services. Naturalization – What to Expect
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U.S. Citizenship and Immigration Services. Chapter 2 – English and Civics Testing
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U.S. Department of State. Report Your Passport Lost or Stolen
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U.S. Citizenship and Immigration Services. Application for Replacement Naturalization/Citizenship Document
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eCFR. Subpart C – Evidence of U.S. Citizenship or Nationality
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eCFR. 42 CFR 436.407 – Types of Acceptable Documentary Evidence of Citizenship