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BIG IDEAS START HERE

Start your Illinois Corporation.

A simple online application for your Illinois Corporation. Clear costs and your next step, all in one place.

Your progress, saved as you go.

Start your company

Illinois Corporation

Government filing fee$150

Our service feeFrom $119

Total starting at$269

Optional services and renewals cost extra.

Official filing fee source

Start my Corporation

Prepare your draft now. Orders are not open in this state yet.

Operated by Open Tech LLC. Independent private service, not a government agency or affiliate.

ONE GUIDED APPLICATION

From idea to filing-ready.

Choose where to form

Illinois is selected. We’ll apply its requirements to your intake.

Tell us about your company

Add the name, owners, addresses and business details required for your situation.

Review every detail and cost

See missing information, government fees and optional services before you authorize anything.

Follow the work in your dashboard

Respond to requests, check filing progress and keep returned documents together.

ILLINOIS AT A GLANCE

A clear start for your Illinois Corporation.

Your application and workspace stay together from the first answer.

Your government estimate

$150 using the mail filing channel

The filing authority

Illinois Secretary of State

Official Illinois information

Review before you commit

Check your name, registered agent and application details. Your exact costs and any optional services are shown before payment.

CLEAR FROM START TO FINISH

Every cost labeled.
Every next step together.

Review the complete estimate before you authorize anything, then use your company workspace to follow the formation, answer requests and find records.

Review packages & pricing

Your company, organized.

Itemized estimateOpen.LLC service fees, Illinois government fees and optional services stay separate.Formation status & requestsSee the current stage, what must happen next and the exact information that needs attention.Company documentsKeep receipts, submissions and returned records with your company.

Add help when you need it.

Keep formation focused, then explore separate services for the business you are building.

Website & AI builder Business email Bookkeeping Compliance & annual reports

Explore all business services Browsing or saving an interest does not activate a service, share data with a provider or authorize a charge.

Know before you begin.

What does it cost to start a Corporation in Illinois?

The published government filing fee is $150. Our Open package currently starts at $119. Optional services and recurring costs are separate. Official source

Can I file directly in Illinois?

Yes. You can use Illinois Secretary of State directly. Open.LLC is an independent private preparation service, not a government agency or an affiliated government website. Official source

What should I prepare for my Illinois Corporation?

Have your preferred company name, business address, registered-agent details and incorporator, director and stock information ready. Your intake asks for the details that apply to your filing. The displayed government estimate uses the mail filing channel.

When is my Illinois Corporation officially formed?

Only after Illinois Secretary of State accepts the filing. Preparing a draft or making a payment does not form the company. Review the official authority’s current processing information; no completion time is guaranteed. Official source

Can I start now?

You can prepare and save your application now. Orders and government submission for Illinois remain unavailable until its filing procedure is accepted. No payment is taken in this preview.

Ready to open your corporation?

Start my corporation

Save your application as you go. No payment required in this preview.