Fill out USCIS Form N-600 Online in 2026

Form N-600, Application for Certificate of Citizenship, is used to obtain official proof that you are a U.S. citizen. It applies to individuals who were born outside the United States and either acquired citizenship at birth through U.S. citizen parents or automatically derived citizenship after birth but before turning 18. USCIS does not issue Certificates of Citizenship to people who were born in the U.S. — if that's your case, a birth certificate or U.S. passport serves as proof of citizenship. A Certificate of Citizenship is useful for obtaining a passport, accessing government benefits, verifying employment eligibility, or simply having official documentation of your status.

Form N-600 is used to:

• Apply for a Certificate of Citizenship from USCIS as official proof of your U.S. citizenship acquired or derived through your parents.
• Establish citizenship status for a child born abroad to U.S. citizen parents — a parent or legal guardian can file on behalf of a minor.
• Provide documented evidence of U.S. citizenship for passports, employment, benefits, or other legal purposes.

1. Complete Part 1 — Information About Your Eligibility:

• Select whether you are the biological or adopted child of a U.S. citizen. Check only ONE box for Question 1 and only ONE box for Question 2 — USCIS will reject the form if multiple boxes are checked in either question.

2. Complete Part 2 — Information About You (Child of a U.S. Citizen):

• Enter your full legal name, any other names you've used, A-number (if any), date of birth, SSN, country of birth, and current address.
• If you are a parent or legal guardian filing for a minor child, enter the child's information here — not your own.

3. Complete Part 3 — Information About Your U.S. Citizen Mother (or Adoptive Mother):

• Enter your mother's full name, date of birth, country of birth, citizenship status, and how she obtained U.S. citizenship.
• Provide her marital history and current address.

4. Complete Part 4 — Information About Your U.S. Citizen Father (or Adoptive Father):

• Same information as Part 3, but for your father. Include details about paternity if you are the biological child of a U.S. citizen father, as you may need to establish that you were born in wedlock or were legitimized.

5. Complete Part 5 — Information About U.S. Citizen Parent's Physical Presence:

• List your U.S. citizen parent's physical presence in the United States from their birth until the date you file Form N-600. This is critical for proving your parent met the residency requirements under the applicable law.

6. Complete Part 6 — Information About Your Marital History:

• Provide your current marital status and details of any marriages.

7. Complete Part 7 — Information About Military Service of U.S. Citizen Parents:

• Complete this only if you are claiming citizenship at birth abroad and your parent(s) served in the U.S. Armed Forces. Military service time can count toward physical presence requirements.

8. Complete Part 8 — Statement, Certification, and Signature:

• If you are 14 or older and filing for yourself, sign here.
• If you are a parent or legal guardian filing for a child under 14, you sign on the child's behalf.
• The form must be signed — USCIS rejects unsigned applications.

9. Complete Parts 9–10 (if applicable):

• Part 9: If an interpreter helped you understand the form, they must provide their information and sign.
• Part 10: If someone else prepared the form (such as an attorney), they must provide their information and sign.

10. Use Part 11 for any additional information:

• If you ran out of space in any earlier section, continue your answers here.

11. Do NOT complete Parts 12 and 13:

• Part 12 is completed only if USCIS requires you to appear for an interview.
• Part 13 is for USCIS officer use only.

12. Gather supporting documents and submit:

• Attach proof of your U.S. citizen parent's citizenship (birth certificate, naturalization certificate, or passport), your birth certificate, your parent's marriage certificate (if applicable), proof of legal and physical custody, and any other documents required by the instructions. All foreign-language documents must include certified English translations. Submit Form N-600 online through your USCIS account or by mail.

Form N-600 is filed by individuals who were born outside the United States and either acquired U.S. citizenship at birth through their parents or automatically became citizens after birth but before turning 18. A U.S. citizen parent or legal guardian can file on behalf of a minor child. Both biological and adopted children of U.S. citizens may be eligible.

You are not required to obtain a Certificate of Citizenship — it is optional. However, it serves as official proof recognized by government agencies, employers, and other institutions.

According to N-600 requirements, it's not needed if:

• You were born in the United States — your birth certificate serves as proof of citizenship.
• You already have a valid U.S. passport, which also serves as proof of citizenship.
• You are seeking U.S. citizenship through naturalization — use Form N-400 instead.
• You need to replace a lost, stolen, or damaged Certificate of Citizenship — use Form N-565 instead.
• You previously filed Form N-600 and already received a decision from USCIS — USCIS will reject any subsequently filed Form N-600 for the same applicant.

There is no deadline for Form N-600. You can file at any time after you meet the eligibility requirements for citizenship — whether that was at birth or before turning 18. There is no age limit for filing, as long as you met the criteria before your 18th birthday.

To obtain a blank Form N-600, visit our website, where we have an USCIS-issued version pre-loaded in our editor, ready for you to fill out and download.

Form N-600 must be signed by the applicant, or by a parent or legal guardian if the applicant is under 14. USCIS accepts an original handwritten signature in ink and will also accept a photocopied, faxed, or scanned copy of the original for filing purposes. A stamped or typewritten name is not accepted.

You can complete the form using CookPDF's editor, then download and print it to add your handwritten signature before mailing. If filing online through USCIS, you sign electronically through your USCIS online account.

You can file N-600 form (PDF) online by creating or logging into your USCIS account at uscis.gov — this is the fastest method and allows you to track your case, upload documents, and receive electronic notifications.

If filing by mail, print and sign the form, attach all required documents, and mail the package to the USCIS address listed in the filing instructions. Check the USCIS Direct Filing Addresses page for the current mailing address.

Form N-565 – Application for Replacement Naturalization/Citizenship Document 

Used to replace a lost, stolen, or damaged Certificate of Citizenship or Naturalization Certificate. Form N-600 is for obtaining the original certificate — Form N-565 is for replacing one you already received.

Who uses it: U.S. citizens who need a replacement of a previously issued citizenship or naturalization document.

Form N-600K – Application for Citizenship and Issuance of Certificate Under Section 322 

Used by U.S. citizen parents to apply for naturalization on behalf of a child who regularly resides outside the United States and is temporarily present in the U.S. This differs from Form N-600, which is for children who automatically acquired citizenship.

Who uses it: U.S. citizen parents of children living abroad who do not automatically qualify for citizenship but may be naturalized under section 322 of the INA.

Form N-400 – Application for Naturalization 

Used to apply for U.S. citizenship through the naturalization process. This is a different path than Form N-600 — N-400 is for lawful permanent residents seeking to become citizens, while N-600 is for those who already are citizens through their parents.

Who uses it: Lawful permanent residents who meet the eligibility requirements for naturalization.

Form I-912 – Request for Fee Waiver 

Used to request that USCIS waive the filing fee based on inability to pay, receipt of means-tested benefits, or household income at or below 150% of the Federal Poverty Guidelines. Can be submitted with Form N-600 if you qualify.

Who uses it: Applicants who cannot afford the filing fee for their USCIS application.

Form G-28 – Notice of Entry of Appearance as Attorney or Accredited Representative 

Filed by an attorney or accredited representative who is representing the applicant on the Form N-600 case. Must be submitted with the application or presented at the interview.

Who uses it: Immigration attorneys or accredited representatives acting on behalf of the applicant.