Need a document issued in Illinois apostilled for use overseas? You don’t have to be in Illinois — or visit us in California — to get it done. Orange County Apostille handles Illinois documents by mail for clients in Chicago, Aurora, and Springfield, and everywhere else in the state. Send your documents in and we manage the entire authentication process.
How it works for Illinois: A Illinois document is apostilled by the Illinois Secretary of State. We prepare and submit your document to that office for you, so you never have to navigate the process yourself.
Illinois documents we apostille
Vital records
Illinois birth, marriage, and death certificates and divorce decrees.
Education
Diplomas, degrees, and transcripts from Illinois schools and universities.
Legal & business
Powers of attorney, affidavits, articles of incorporation, and certificates of good standing filed in Illinois.
Background checks
Illinois state background checks, and federal FBI identity history summaries.
How mail-in Illinois apostille works
- Start your order online and tell us the document type and the destination country.
- Mail your Illinois documents to us (or upload them where allowed).
- We submit to the Illinois Secretary of State — or to the U.S. Department of State for federal documents.
- We return your apostilled documents by tracked, secure shipping to any address, in the U.S. or abroad.
Federal documents from Illinois
Some documents issued to Illinois residents are federal — such as FBI background checks, IRS Form 6166, and documents signed by a U.S. federal official. These are not apostilled by the Illinois Secretary of State; they’re authenticated by the U.S. Department of State in Washington, D.C. We handle those too. See our federal apostille page.
Going to a non-Hague country?
If your Illinois document is destined for a country that isn’t part of the Hague Apostille Convention, it needs full embassy or consulate legalization rather than an apostille. We manage that multi-step process from start to finish.
Apostille your Illinois document
Mail it in from anywhere in Illinois — we handle the rest.
Frequently asked questions
I live in Illinois. Do I have to come to California?
No. Mail your documents to us from anywhere in Illinois and we return them to any address you choose.
Which office apostilles Illinois documents?
The Illinois Secretary of State. We prepare and submit your document to that office on your behalf, and obtain federal authentication separately when a document requires it.
Can you apostille documents from more than one state together?
Yes. We can process Illinois documents alongside documents from other states in a single order and coordinate one return shipment.
Related: Apostille from any state · Mail-in apostille · Nationwide apostille services