Take Your Business Further by Incorporating in Illinois

Illinois is a central hub for commerce and innovation making it a strategic choice for forming a C-Corp. With One IBC USA, you’ll navigate incorporation efficiently and build on a strong legal foundation. Start at $199, plus state filing fees.

Get Your Business Started Today. Select Your Package

Basic

$199

+ States Filing Fees
Form my C-Corp

02 weeks processing

Agent fee

Registered Address

Document filing with the Secretary of State

Standard

$499

+ States Filing Fees
Form my C-Corp

05 days processing

Includes everything in basic package

Comprehensive name check

Preparation of Articles of Incorporation

Lifetime customer support (phone & email)

Federal Tax ID (EIN) Obtainment Service

Recommended

Premium

$599

+ States Filing Fees
Form my C-Corp

01 day processing

Includes everything in standard package

2 hours of free tax consultation

One IBC USA: Trusted Support for Illinois C-Corp Formation

Local Know-How
Local Know-How

Local Know-How

We handle Illinois-specific filings, deadlines, and legal formalities.

Ongoing Guidance
Ongoing Guidance

Ongoing Guidance

Get support even after your C-Corp is formed.

Flexible Service Plans
Flexible Service Plans

Flexible Service Plans

Choose incorporation options that suit your business size and scope.

How Illinois C-Corps Operate Under State Law?

C Corporations in Illinois function as independent legal entities, shielding owners from personal liability. Incorporation requires filing Articles of Incorporation with the Secretary of State. C-Corps are ideal for companies that plan to raise capital through equity and scale with multiple shareholders.​​

Form my C-Corp

Incorporation Benefits That Make Illinois Stand Out

Central Location

Central Location

Illinois gives companies access to key transportation, logistics, and commerce corridors.​

Digital Filing Tools

Digital Filing Tools

Online incorporation and annual reporting simplify compliance.

Supportive Legal Framework

Supportive Legal Framework

Business regulations are transparent and well-structured.

Why it matters

Why it matters

C-Corps offer limited liability, access to institutional investors, and operational continuity.​

What’s required

You’ll need to file Articles of Incorporation, appoint an in-state registered agent, and submit an annual report.​​​

Compare entities

C-Corps can have unlimited shareholders and stock classes. S-Corps must stay within tighter limits but offer pass-through taxation for qualified companies.​

Pick the Right Fit: Illinois S-Corp or C-Corp

S-Corp Snapshot

No corporate-level tax

No corporate-level tax

U.S. citizens/residents only

U.S. citizens/residents only

One stock class allowed

One stock class allowed

C-Corp Snapshot

Entity pays its own taxes

Entity pays its own taxes

No limit on ownership or nationality

No limit on ownership or nationality

Multiple stock classes permitted

Multiple stock classes permitted

Ready To Start Your Corporation

Get Started

Getting Started with Your Illinois C-Corp Formation

1

Name Your Business

Choose a name that meets Illinois naming rules and isn’t already in use.

2

Assign a Registered Agent

You must appoint an agent located in Illinois to accept legal notices.

3

File Your Articles of Incorporation

Submit formation paperwork through the Secretary of State’s office to formalize your C-Corp.

Frequently Asked Questions

Yes. Illinois imposes no residency or citizenship requirements for shareholders or directors of a C Corporation. A registered agent with a physical street address in Illinois must be appointed to receive legal and regulatory correspondence. This allows foreign-controlled or out-of-state entities to incorporate in Illinois without maintaining a physical office in the state.

Yes. Illinois law requires every corporation to appoint a registered agent with a physical street address located within the state. This address serves as the official location for receiving service of process and government communications. A separate business office is not required, and most companies meet this obligation through a commercial registered agent service.

C Corporations incorporated in Illinois are subject to double taxation, under which business income is taxed at the corporate level and again upon distribution to shareholders. This tax structure is aligned with federal corporate tax regulations and applies uniformly to C Corporations operating in the state.

Ready to Start Your Corporation?

Get Started
Ready to Start Your Corporation?

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Find The Right State To
Form A C-Corp

Every state has different rules, costs, and considerations for C-corp formation.

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