Can you apostille a Certificate of Naturalization?

Yes. A Certificate of Naturalization can be apostilled, but only by the U.S. Department of State in Washington, DC, and only after U.S. Citizenship and Immigration Services (USCIS) issues a certified true copy of it. No state Secretary of State and no notary public can certify or apostille this document. Your original certificate stays with you.

That single sentence explains most of the confusion around this document. Birth certificates, marriage licenses, and notarized powers of attorney are state records, so they are apostilled by the state that issued or notarized them. A Certificate of Naturalization is issued by a federal agency, which puts it in an entirely different lane — the same lane as FBI Identity History Summaries and IRS letters. If you want the wider picture, see our reference on which federal documents can be apostilled.

What is a Certificate of Naturalization?

A Certificate of Naturalization is the document USCIS issues to a person who becomes a U.S. citizen through naturalization rather than by birth. You receive it at the oath ceremony, and it is the primary evidence that you hold U.S. citizenship acquired on a specific date, at a specific place, under a specific certificate number.

It is not the same as a Certificate of Citizenship, which is issued to people who acquired or derived citizenship by other means — for example, certain children of U.S. citizen parents. Both are federal USCIS documents and both follow the same federal apostille route, but they are distinct records, and a foreign authority that asked for one will not always accept the other. Read the request you were given carefully.

Foreign authorities ask for an apostilled naturalization certificate in a narrow set of situations: proving current nationality in a dual-citizenship file, showing a change of nationality after a foreign birth record was created, marriage and civil-registry filings abroad, property purchases, residence permits, pension and inheritance matters, and name-change reconciliation where your foreign records still show your pre-naturalization name.

What does a naturalization certificate look like?

Designs have changed several times over the decades, so what you hold depends on when you naturalized. Across versions, expect a single heavyweight sheet carrying:

• A photograph of the certificate holder, affixed to the document face.
• The holder’s full name at the time of naturalization, plus personal descriptors (date of birth, country of former nationality, and on older versions physical details such as height).
• A certificate number.
• An Alien Registration Number — the A-Number, shown on newer documents as the USCIS Number.
• The court or USCIS district and the date the oath was administered.
• An embossed or printed government seal and the signature of the issuing official. Older certificates were signed by a court clerk; newer ones bear a Department of Homeland Security / USCIS signature.
• A printed notice that unauthorized copying or reproduction of the certificate is prohibited.

That last item is why the copying rules are strict, and why photocopy shops, notaries, and “certified copy” services outside USCIS cannot help you here.

Where do you find your Certificate of Naturalization number?

The certificate number is printed on the face of the document, usually in the upper portion or along the top edge, and on many versions it is rendered in a distinct colour so it stands out from the body text. It is typically six to eight digits or an alphanumeric string.

Do not confuse it with the A-Number/USCIS Number, which also appears on the certificate and is the number that follows you through your entire immigration file. Foreign registries and USCIS forms ask for different ones, so label them correctly when you fill out an application. If you genuinely cannot tell which field is which on an older certificate, the field labels on USCIS Form N-565 and the USCIS Contact Center are the reliable way to settle it — not guesswork.

Why can’t a state Secretary of State apostille it?

Because apostille authority in the United States follows the issuing authority of the document. A state office can only authenticate signatures and seals of officials commissioned by that state — its county clerks, its vital records registrars, its notaries. A USCIS officer is a federal official, and no state has jurisdiction over that signature.

State offices say so themselves. The Colorado Secretary of State, for example, directs anyone holding a naturalization certificate to first obtain a certified true copy from the Department of Homeland Security and then send that certified copy to the U.S. Department of State’s Office of Authentications. Send the document to a state office and you lose the mailing time and get it back unprocessed.

Do not mail your original Certificate of Naturalization anywhere. Replacing it is one of the slowest processes in the USCIS catalogue, and you may need it in hand for a passport application, an I-9, or a benefits filing while the apostille is pending. The correct object to apostille is a USCIS-issued certified true copy — request that, and keep the original in your own file.

How do you get a certified copy of your naturalization certificate?

This is the step that decides whether the whole request succeeds, and it is the step most people get wrong. Only USCIS can reproduce a naturalization certificate and attest that the reproduction is a true copy. What you are asking for is a certified true copy. Use that exact phrase. The word “authentication” means something different to USCIS than it does to the Department of State, and asking for the wrong thing generates a wrong answer.

Field office certification of a copy

The traditional route is an in-person appointment at your local USCIS field office, where an officer inspects your original certificate and your photo identification, then certifies a copy. Bring the original certificate, a clean photocopy of it, and government-issued photo ID such as a U.S. passport or driver’s licence. Certification is discretionary — the officer must be able to confirm your identity and your naturalized status.

Appointments are arranged through the USCIS Contact Center. Ignore any guide that tells you to book through InfoPass; that self-scheduling system was retired and the instruction is stale. Availability of copy certification varies by office, so confirm before you travel there.

A records request to USCIS

Where a field office cannot help, USCIS records channels can produce documentation from your immigration file. The USCIS records and Genealogy Program pages set out which request type applies to which record and era. This route matters most for very old certificates, for certificates whose signatures can no longer be authenticated, and for cases where the holder has died and an heir needs proof of the naturalization for a foreign estate file.

Replacement, not certification

If your certificate is lost, stolen, destroyed, mutilated, or contains information that has legally changed, the remedy is Form N-565, Application for Replacement Naturalization/Citizenship Document. This produces a new certificate, not a certified copy. It is a separate application with its own queue and its own filing fee, and you cannot skip it by asking for a certified copy of a document you no longer possess. Only once you hold a valid certificate again can the certification-and-apostille sequence start.

What are my options, side by side?

What does the finished document look like?

You should expect a multi-page set: a USCIS certificate of authenticity carrying an official stamped seal, the signature of the certifying officer, and a statement that the attached reproduction is authentic; behind it, the copy or image of your naturalization certificate; and on top of the set, the Department of State apostille or authentication certificate. Never separate the pages, remove staples, or re-order them. Foreign registries reject unbound or reassembled sets because the chain of certification is no longer provable.

How do you get the apostille, step by step?

1. Confirm exactly what the receiving authority wants. Ask whether they need the naturalization certificate or a Certificate of Citizenship, whether a certified copy is acceptable, and whether a translation is required. Get it in writing. This is the cheapest five minutes of the whole project.
2. Check the destination country’s Convention status. Look your country up on the HCCH status table for the Apostille Convention. Convention parties get an apostille; everyone else needs authentication plus embassy legalization, which adds a stage.
3. Obtain the USCIS certified true copy. Book through the USCIS Contact Center or file the applicable records request. Use the phrase “certified true copy.” An agency filing fee applies at this stage, and it is included in our flat price when we handle the file.
4. Inspect the USCIS packet before it goes anywhere. Check that the seal is present and legible, that the officer signed it, that the pages are attached, and that your name matches your other documents exactly.
5. File with the Office of Authentications. The certified copy is submitted to the U.S. Department of State’s Office of Authentications with the current request form, the destination country named, the applicable fee, and a prepaid return envelope. Confirm the current form and mailing address on that page before you send anything — the office has changed both in the past, and USCIS will not forward your document for you.
6. Add the consular step only if required. For non-Convention destinations, the authentication certificate goes on to that country’s embassy or consulate in the United States for legalization. Requirements and appointment rules are set by the embassy, not by us.
7. Translate last. Unless the receiving office instructs otherwise, have the translation prepared after the apostille is attached, so the apostille text is part of the translated set. Some countries require a sworn or court-registered translator in-country; find that out before paying.

Which route applies to my situation?

How long does the whole process take?

Plan around two independent queues rather than one number. The USCIS certification or replacement stage is usually the longer of the two and varies by field office and by request type; check the USCIS case processing times tool for the form you are filing. The federal apostille stage has its own published timeframe on the Office of Authentications page, and that page is also where any limited in-person or courier drop-off service would be announced — confirm availability there rather than assuming it exists.

Two practical points. First, mail-in federal requests move at the speed of the queue, so a document needed for a hearing date abroad should be started as early as your civil-registry paperwork allows. Second, some destinations impose a recency window on the apostille itself, meaning a document apostilled a year ago may be refused even though the underlying naturalization never expires. Ask about recency before you order.

What differs by destination country?

The federal steps are identical for every country. What changes is what the foreign office does with the document afterwards: whether it wants a certified copy or insists on sight of an original, whether the translation must be sworn locally, whether the apostille must be recent, and whether the naturalization certificate is being used as proof of nationality or as a supporting exhibit in a larger file.

Spain and Colombia, for example, are frequent destinations where the certificate is filed alongside a foreign birth or marriage record and a translation prepared to local standards. Italian dual-citizenship files use the certificate to fix the exact date nationality changed — see our guide to apostilling a naturalization certificate for Italian dual citizenship. Marriage filings have their own paperwork chain, covered in our walkthrough on using an apostilled naturalization certificate to marry in the Philippines. Deadline-driven cases are handled in our guides to an expedited naturalization certificate apostille for Romania and a fast-turnaround naturalization certificate apostille for the Netherlands. Requirements are set by the receiving authority, and that authority always has the final say on what it will accept.

Common reasons an apostille request is rejected

• A photocopy you made yourself. Home, office, and copy-shop reproductions carry no certification and cannot be authenticated at any level.
• A notary-certified copy. A notary public has no authority over federal records. This is the single most common reason these requests fail.
• Sent to a state Secretary of State. Wrong jurisdiction; the package comes back unprocessed after weeks in transit.
• Asking USCIS for “authentication” instead of a “certified true copy.” The vocabulary mismatch produces the wrong document or no document.
• An old certificate whose signature cannot be authenticated. Certificates issued decades ago may bear a court clerk’s signature no longer on file, which is precisely why a fresh USCIS certification is needed.
• Destination country omitted from the federal request. The Office of Authentications needs to know the country to decide between an apostille and an authentication certificate.
• Pages separated or the staple removed. Once the certification chain is broken, registries abroad treat the set as unverifiable.
• Name mismatch. The certificate shows your pre-marriage or pre-name-change name while your other filings show the current one, with nothing linking them. Add the linking record, or amend the certificate through the replacement process first.
• Apostille too old for the receiving office. A valid apostille can still be refused where the destination imposes a recency window.
• Wrong document entirely. A Certificate of Citizenship submitted where a Certificate of Naturalization was requested, or vice versa.
• Non-Hague destination treated as Hague. An authentication certificate without the embassy legalization stage is an incomplete document abroad.

What we handle, and what to do next

We run the federal side of this end to end: confirming which document the receiving authority actually needs, obtaining the USCIS certified true copy, filing with the Office of Authentications with the destination country correctly declared, and arranging embassy legalization where the destination is not a Convention party. Our price is $120 per apostille, all-inclusive — no separate government-fee surcharge and no per-page add-ons. The agency filing fees at both the USCIS and federal stages are covered by that price.

Next step: pull out your certificate and check three things — that you hold the original and it is intact, that the name on it matches the name on your foreign paperwork, and that the receiving office abroad has told you in writing whether a certified copy is acceptable. If all three check out, you are ready to start an order and we will begin with the USCIS certification. If one of them does not, tell us which one and we will tell you which route fixes it before any fee is spent.