Long Island Apostille: County Clerk, DOS Filing, and Costs

If you live in Nassau or Suffolk County and need a document recognized by a foreign government, a Long Island apostille is handled through the New York Department of State, but notarized documents first need certification from your county clerk in Mineola or Riverhead. The apostille is a one-page certificate confirming that the signature and seal on your document are genuine, which is what allows a foreign authority to accept it without additional proof.¹ It works in the 129 countries that belong to the 1961 Hague Apostille Convention.² For a country outside that treaty, New York issues a Certificate of Authentication instead, and your document then needs additional legalization at the destination country’s embassy or consulate.³

Which Documents Qualify

The Department of State can authenticate public documents issued in New York that carry the signature of a New York State official or county clerk.³ The usual categories are:

Vital records: birth, death, marriage, and divorce certificates issued by a local registrar or the Department of Health.⁴
Educational credentials: diplomas and transcripts from New York schools and universities.
Notarized private documents: powers of attorney, affidavits, and contracts notarized by a New York notary public.
Business records: articles of incorporation, certificates of good standing, and other corporate filings signed by a state official.

Every document must be an original or a certified copy. Plain photocopies get rejected.⁵

The NYC Birth Certificate Trap for Long Islanders

Many Long Island residents were born in a New York City hospital, and their birth certificates come from the NYC Department of Health rather than Nassau or Suffolk County. If that’s you, order the long-form version, not the short form, which foreign governments routinely refuse. You also need to request a Letter of Exemplification from the NYC Department of Health and have the record certified by the New York County Clerk’s Office before sending anything to the state.³ Birth certificates issued directly by Nassau or Suffolk County skip the Letter of Exemplification entirely.

Step 1: County Clerk Certification

Any document carrying a notary public’s signature has to be authenticated at the county level before the state will touch it. New York Executive Law Section 133 requires the county clerk to confirm that the notary was duly commissioned and that the signature is genuine, and the clerk then issues an authentication certificate the state relies on.⁶

For Long Island, that means one of two offices:

Nassau County Clerk, 240 Old Country Road, Room 108, Mineola, NY 11501.⁷
Suffolk County Clerk, 310 Center Drive, Riverhead, NY 11901, open Monday through Friday, 9:00 a.m. to 4:30 p.m.⁸

The statutory fee is $3 per signature.⁶ One detail trips people up constantly: the notary who signed your document must have their commission filed in the county where you’re seeking authentication. A Nassau-commissioned notary’s signature cannot be authenticated at the Suffolk County Clerk’s office, and the reverse is also true. Check the notary’s stamp before you make the drive.

Vital records signed by a county registrar or state official rather than a notary often don’t need this county clerk step, because the Department of State can verify the official’s signature directly. If you’re unsure, call the DOS apostille unit at (518) 473-2492 before you go.

Step 2: Filing With the Department of State

Once your documents carry the right county-level certifications, you submit everything to the New York Department of State using Form DOS-1917, available on the Department of State website.⁹ The form asks for your contact details and the exact country where the document will be used; that country’s treaty status is what tells the state whether to issue an apostille or a Certificate of Authentication.

The fee is $10 per document.⁹ Confirm that your payment matches the exact number of documents in the packet. Mismatched payments are one of the most common reasons packages come back unprocessed.

By Mail

Mail the completed DOS-1917 form, the original certified documents with county clerk authentication, and your payment to:

New York Department of State
Division of Licensing Services
Apostille and Authentication Unit
PO Box 22001
Albany, NY 12201-2001⁹

Use a trackable shipping method. The state returns your documents by first-class mail by default, but you can include a prepaid overnight envelope from FedEx, UPS, or another carrier to get them back faster.³ Standard first-class return makes most people nervous for good reason when the documents are irreplaceable.

In Person in Manhattan

The nearest walk-in office to Long Island is the Department of State’s customer service location at 123 William Street, 2nd Floor, New York, NY 10038.³ For most Nassau and Suffolk residents, this is a lot faster than mailing documents to Albany, especially when a visa interview or filing deadline is looming.

Processing Time

Mailed applications generally take about two to three weeks, though that moves with the state office’s volume. The Department of State does not offer expedited processing.³ The only way to shorten the overall wait on a mailed request is the prepaid overnight return envelope.

The apostille comes back as a separate one-page certificate attached to your original document. Keep them physically connected. Foreign authorities expect to see the apostille joined to the underlying record, so don’t pull the packet apart to reorganize it.

Federal Documents Go Through Washington

The New York Department of State only authenticates documents issued within New York. For a federal document, including an FBI Identity History Summary (background check), a U.S. patent, or a federal court order, you go through the U.S. Department of State’s Office of Authentications in Washington, D.C.¹⁰ The federal process uses Form DS-4194 and costs $20 per document.¹¹

This matters because FBI background checks are one of the most commonly apostilled documents for people moving abroad, and the federal mail-in process runs roughly 10 to 12 weeks. Many countries also treat the FBI report as valid for only a short window, sometimes 90 days from issuance. If you wait 12 weeks for the federal apostille, your underlying report may already be stale for visa purposes. Order and apostille it close to when you’ll actually file.

If Your Destination Country Is Not in the Hague Convention

The apostille only works between member countries. For a document headed somewhere outside the convention, the chain looks like this:

County clerk certification, the same as for the apostille path when the document is notarized.
State-level authentication, where New York issues a Certificate of Authentication instead of an apostille.³
Embassy or consulate legalization, where the destination country’s representatives in the U.S. review the chain and add their own seal.

Each embassy sets its own fees, turnaround, and submission rules. Some demand in-person appearances, some accept mail. Call before you send anything. Skipping or reordering a step usually invalidates the whole chain.

Translations

Many destination countries want the apostilled document accompanied by a certified translation into the local language. A certified translation carries a signed statement from the translator affirming completeness and accuracy, along with the translator’s qualifications and contact information. Some countries go further and require the translator’s signature to be notarized, and that notarization itself may then need its own apostille.

Certified translation fees for legal and vital records usually run $25 to $50 per page. Confirm the exact translation requirement with the receiving authority before you pay, because the wrong form of translation gets rejected at the embassy window overseas, where fixing it is slow and expensive.

What It Costs

For a single notarized document going from Long Island to a Hague Convention country, the fees are approximately:

County clerk authentication: $3 per document.⁶
State apostille fee: $10 per document.⁹
Trackable shipping both ways, plus an optional prepaid overnight return envelope.
Certified translation at $25 to $50 per page if the destination requires it.

Add embassy legalization fees for non-Hague destinations. For federal documents, the $20 per-document federal charge replaces the state’s $10 fee.¹¹ A family relocation involving several records can easily clear $200 before translation. Private apostille agencies charge upward of $100 per document on top of the government fees, so handling the process yourself saves real money when your timeline allows it.

1
United Nations Treaty Collection. Convention Abolishing the Requirement of Legalisation for Foreign Public Documents
2
Hague Conference on Private International Law. Convention of 5 October 1961 Abolishing the Requirement of Legalisation for Foreign Public Documents
3
New York Department of State. Apostille or Certificate of Authentication
4
New York Department of State. Apostille or Certificate of Authentication
5
NYC311. Apostille Document Authentication
6
New York State Senate. New York Code EXC 133 – Certification of Notarial Signatures
7
Nassau County. Notary Public
8
Suffolk County Government. Notary Public
9
New York State Department of State. Apostille/Certificate of Authentication Request
10
U.S. Department of State. Office of Authentications
11
U.S. Department of State. Request for Authentications Service