FORMATION ✓ Every figure sourced

Illinois Corporation
fees and filing deadlines

A separate legal entity owned through shares. 'C corp' and 'S corp' are not entity types - they are federal tax elections made after formation, on the same underlying corporation.

To start

Form a Corporation in Illinois
Articles of Incorporation
$150
5/15.10) (from Ch. 32, par. 15.10) Sec. 15.10. Fees for filing documents. The Secretary of State shall charge and collect for: (a) Filing articles of incorporation, $150. (b) Filing articles of amendment, $50, unless the amendment is a restatement of the articles of incorporation, in which case the fee shall be $150. (c) Filing artic

Every year after that

FilingFeeWhen it is due
Annual Report$75Due by the anniversary day in the calendar month the business was formed, every year.

About $75 a year to stay in good standing at today’s fees, counting only recurring filings and spreading anything filed less often across the years between. One-time filings and taxes are excluded.

Where each figure comes from

Annual Report
$75

Due by the anniversary day in the calendar month the business was formed, every year.

(o) Filing an annual report, interim annual report, or final transition annual report of a domestic or foreign corporation, $75.

Get your own dates

The deadlines above are the rules. Your actual dates depend on when you form, so the calendar is built from your formation date — free, no account.

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Other structures in Illinois

Limited Liability Company

The same structure elsewhere

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