Illinois Apostille Services

We review your Illinois documents, file them with the Illinois Secretary of State, and send them back to you by tracked shipping. Order online from anywhere in the U.S. No office visit needed.

From $347 per document · Illinois state fee included

Book Illinois apostille Call or text (914) 639-6280

Trilogy Notary Services is a private document services company, not a government agency. The apostille is issued by the Illinois Secretary of State, Index Department.

Issuing office: Illinois Secretary of State, Index DepartmentOfficial page
Government fee: $2 per documentIncluded in our price
Hague Convention countries: Apostille
Non-Hague countries: Certification
The state accepts requests by: walk-in
Published processing time: Not publishedAs listed by the office on October 29, 2026

Documents Illinois can apostille

Documents notarized by an Illinois notary public
Documents certified by an Illinois county clerk
Documents certified by an Illinois circuit clerk
Vital records certified by a local registrar

The issuing state is what matters, not where you live now. A document issued or notarized in another state goes to that state's office, and documents from federal agencies go to the U.S. Department of State through our federal apostille service.

Illinois requirements to check before you book

Requests must be submitted on the form prescribed by the Secretary of State and accompanied by the lawful fee.Source
The document must be an original. Where applicable, it must be certified by the appropriate authority and notarized in accordance with the Illinois Notary Public Act; otherwise the Secretary of State may refuse it.Source

Good to know

Removing an apostille, certification, or the Great Seal of the State of Illinois from a document invalidates it (15 ILCS 305/5.20(c)).
The office may refuse documents meant for use in the U.S. or a non-Hague country (where applicable). It may also refuse documents about citizenship, immunity, allegiance, or sovereignty, or that may be used unlawfully.
The Illinois Department of Public Health refers vital-record apostille requests to the Secretary of State Index Department.

About our Illinois apostille service

Illinois apostille and authentication service authenticates Illinois-issued documents for use overseas. We process birth and marriage certificates for dual citizenship, court-certified divorce judgments, corporate resolutions for a foreign subsidiary, and university transcripts. Trilogy Notary Services LLC prepares and submits filings to the Illinois Secretary of State Index Department, then returns them through nationwide mail-in service.

How it works

Book onlineChoose the option that matches your document and destination, then tell us the document type, the country where it will be used, and your deadline.
We review your document firstBefore anything is filed, we check it against the Illinois requirements on this page. If a step is missing, such as a notarization or a certified copy, we tell you what's needed before we file.
Send your original or meet a notaryWe send mailing instructions after you book. If your document still needs to be signed and notarized, one of our mobile notaries can meet you, or you can use remote online notarization where it's accepted.
We file and track itWe submit your request to the Illinois Secretary of State with the government fee and follow it until the office releases it.
We ship it backYour documents come back by tracked shipping. If your destination also needs embassy legalization or a certified translation, we can handle that next.

Pricing

$347 per document.

Prices include the Illinois state fee, courier filing, return shipping, and handling. Sales tax is added at checkout where it applies, and any deposit is shown before you pay. If you have more than one document, tell us the count when you book and we'll confirm your total.

Government processing times are set by the issuing office and change during the year. We don't promise a delivery date that depends on a government office, and we'll tell you the current timing when we review your order.

Book Illinois apostille

Common questions

How much does an Illinois apostille cost through Trilogy?

Our Illinois apostille service starts at $347 per document. That price includes the Illinois government fee of $2 per document, plus courier filing, return shipping, and handling. Sales tax, if it applies, and any deposit are shown at checkout before you pay.

Who issues apostilles in Illinois?

The Illinois Secretary of State, Index Department. Trilogy Notary Services is a private document services company: we prepare and submit your request and track it, but the apostille itself is issued by the state office.

What does Illinois require before it will apostille a document?

Requests must be submitted on the form prescribed by the Secretary of State and accompanied by the lawful fee. The document must be an original. Where applicable, it must be certified by the appropriate authority and notarized in accordance with the Illinois Notary Public Act; otherwise the Secretary of State may refuse it. We check for these before anything is filed.

Can Illinois apostille an FBI background check or another federal document?

No. Documents issued and signed by a federal agency, such as an FBI background check, are authenticated by the U.S. Department of State, not by the Illinois Secretary of State. We handle those through our federal apostille service.

What if my destination country is not in the Hague Apostille Convention?

For non-Hague countries, Illinois issues this instead of a standard apostille: Certification. Many non-Hague countries then require embassy or consulate legalization, which we handle through our embassy legalization service. Tell us the destination country when you book.

How long does an Illinois apostille take?

The Illinois Secretary of State does not publish a standard processing time. Total time depends on the state's queue plus shipping both ways. We confirm current timing when we review your order, and we don't promise a delivery date we don't control.

Working with Trilogy

Nationwide, by appointmentBased in Westchester County, NY, we serve clients in all 50 states and U.S. territories through a network of commissioned, insured notaries. We don't have a walk-in office.

Ask before you payNot sure your document qualifies? Call or text (914) 639-6280 or email [email protected]. We're available Monday to Sunday, 8:00 AM to 9:30 PM ET.

Privacy and termsQuestions about how we handle your documents and personal information? See our privacy policy and terms and conditions.

Related services

Federal apostillePassports, naturalization records, IRS, SSA, VA, DD-214 and other federal documents.FBI background check apostilleIdentity History Summary for visas, jobs, and residency abroad.Embassy legalizationFor countries outside the Hague Apostille Convention.Certified translationWhen the receiving country needs your document in another language.

Document issued in a different state?

Sources

The Illinois requirements, fees, and processing times on this page come from these official sources, checked on October 29, 2026. Rules change, so we confirm current requirements when we review your order. Spot something out of date? Email [email protected].