Apostille Services In Illinois

Expedited authentication, notary & translation

Standard

$175

4-14 business days
1-2 weeks

Order now

Rush

$225

1-3 business days

Not including shipping and fees charged by embassies or the Secretary of State.

Some states do not offer expedited processing.

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Same Day

$275

24 hours

Not including shipping and fees charged by embassies or the Secretary of State.

Some states do not offer expedited processing.

Order now

*Not including shipping and fees charged by embassies or the Secretary of State
*Some states do not offer expedited processing

Support through document issues

If your document gets rejected, you won't have to handle it alone. We:

Review the reason for rejection
Assist with fixing the issue
Guide you through the next steps

If necessary, we'll resubmit your documents so the process stays on track.

How to Get an Apostille in Illinois

In Illinois, an apostille is issued by the Illinois Secretary of State. It verifies the signature or seal of a public official on a document so it can be recognized in countries that participate in the 1961 Hague Apostille Convention.

This certification is available for eligible records issued in Illinois, documents certified by a state or local public authority, and private documents properly notarized by a commissioned Illinois notary public. Illinois authentication for non-Hague countries follows a different process and may require additional federal, embassy, or consular steps.

How Our Illinois Apostille Process Works

1. Apply online

Send us your request online and receive a quote from a specialist the same day. We will also review a scan of your documents for any errors and let you know ASAP if additional steps are required.

2. Send us your documents

No need to make an appointment or go to a physical location. Just mail us your documents through a secure tracked shipping service (FedEx, DHL, or UPS). In some cases we may not even need the physical copy!

3. Receive your documents

Once completed, your Apostilled documents will be mailed to you via FedEx or DHL and will arrive at your doorstep. Ask about our shipping options! Whether in the US or Worldwide, we’ll get them to you wherever you may be.

Documents We Apostille in Illinois

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Illinois Apostille Requirements

The Illinois Secretary of State will only process documents that meet specific eligibility standards:

Public records. Government-issued documents — birth and marriage certificates, court orders, corporate filings — must be original certified copies issued by the relevant Illinois authority. The document must carry the official signature or seal of the issuing office.
Notarized documents. Powers of attorney, affidavits, and copies of passports and other private documents must be notarized by a commissioned Illinois notary public. The notarization must be current and complete, with an original signature, seal, and a full notarial certificate. Photocopies are not accepted unless they have been properly certified or notarized.
Academic documents. An Illinois diploma or transcript apostille request may require notarization, even if the document already bears a school seal or a school official’s signature.

FBI Background Check Apostille Services in Illinois

Anyone in Illinois who is applying for immigration, employment, residency, adoption, study, teaching abroad, or international background verification may need an apostille for their FBI background check. The key thing to understand is that an FBI Criminal History Report is a federal document — the Illinois Secretary of State has no authority to apostille it.

A federal apostille request must be processed through the U.S. Department of State Office of Authentications in Washington, D.C. One Source Process provides FBI apostille service for Illinois residents:

confirming destination country requirements;
preparing documents correctly;
routing to the U.S. Department of State;
managing return delivery.

How to Avoid Illinois Apostille Delays and Rejections

Even carefully prepared applications can be returned when small details are missing or incorrect. These are some of the most common reasons for Illinois apostille delays and rejections:

incorrect or incomplete notarization;
missing notary details;
no original signature or seal;
photocopies submitted instead of certified copies;
federal documents sent to the state office;
apostille requested when embassy or consular legalization is required;
translation or additional notarization requirements not checked in advance.

Where Can I Get an Illinois Apostille?

Apostilles for documents in Illinois are issued by the Illinois Secretary of State’s Index Department in Springfield and Chicago. Users can submit applications directly by mail or in person. One Source Process assists clients in Chicago, across Illinois, and from anywhere in the U.S. or abroad.

How Fast Can I Get an Apostille in Illinois?

Illinois apostille processing times vary and can’t be guaranteed. They depend on document type, notarization status, state office workload, submission method, and whether federal or embassy legalization is required. Standard processing typically takes 5–10 business days, with limited expedited options available.

Why Choose One Source Process for Illinois Apostille Services

At One Source Process, every document is reviewed before submission for missing information, notarization issues, incorrect certifications, and formatting errors.

Our experts then determine the correct authentication path: an Illinois Secretary of State apostille, a federal apostille, authentication through the U.S. Department of State, or full embassy legalization for a non-Hague destination. Each request is directed to the appropriate authority. If translation is required, we provide certified translation in over 250 languages. Completed documents are returned via tracked FedEx or DHL, domestically or internationally.

Ready to Start Your Illinois Apostille Request?

Our team can review your documents, confirm the correct process for your destination country, and handle the submission from start to finish.

Contact Information

Phone: 1-800-668-5448 (USA)

International: 1-202-459-4760

Email: apostille@onesourceprocess.com

Business Hours: Monday–Friday, 8:00 AM–5:00 PM EST

Testimonials from real clients

Common questions about Apostille and Legalization

How do I get an apostille in Illinois?

Who issues apostilles in Illinois?

What documents can be apostilled in Illinois?

Do Illinois documents need to be notarized before an apostille?

Can you apostille a birth certificate issued in Illinois?

Can I apostille a photocopy in Illinois?

Do you offer apostille services in Chicago?

Can I get an FBI background check apostilled in Illinois?

Can One Source Process help with FBI apostille services for Illinois residents?

Can you apostille documents in languages other than English?

Why choose One Source Process for apostille services in Illinois?

Ask us anything!

Our CEO Brandon Yoshimura and Director of Operations Danny Koo.

Ask us anything!

CEO Brandon Yoshimura (left) and Director of Operations Danny Koo (right) outside of our office in Washington, DC.