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Start Your Illinois Business
Fast & Easy

Expert guidance for Illinois LLC and S Corp formation. Compare services, understand requirements, and launch your business with confidence.

4.9/5 Rating
50,000+ Businesses Formed
100% Accuracy Guarantee

Everything You Need to Start Your Illinois Business

From formation to compliance, we guide Illinois entrepreneurs through every step of the business launch process.

🏛️ Illinois Quick Facts

Filing Fee: $150

Processing: 5-10 business days

Annual Report: $75

No Franchise Tax

#1 CHOICE

ZenBusiness

4.9/5

ZenBusiness stands out as our top pick for LLC formation services thanks to its unbeatable combination of value, features, and support. With formation starting at $0 plus state fees, you can rest easy with their worry-free compliance service, award-winning customer support, and 100% accuracy guarantee. The Pro and Premium packages add even more value with 1-day processing, an employer ID number, operating agreement, and services to get your business online like domain name registration, AI business website builder, and more.

Start with ZenBusiness →

🏢 LLC vs S Corp

Tax Flexibility LLC Wins
Tax Savings S Corp Wins
Simplicity LLC Wins
Learn More →

⚡ Simple 3-Step Process

1️⃣

Choose Service

Pick your formation provider

2️⃣

Submit Info

Provide business details

3️⃣

Get Approved

Receive legal documents

🌟 Why Illinois?

  • • Central location
  • • Business-friendly
  • • Major markets
  • • No franchise tax

💼 Expert Support

  • • Formation guidance
  • • Compliance help
  • • Tax planning
  • • Ongoing support

Ready to Start Your Illinois Business?

Join thousands of successful Illinois entrepreneurs who trusted our recommendations. Compare services and start your business today.

Affiliate Disclosure: We earn commissions from qualifying purchases. This helps us provide free resources to Illinois entrepreneurs.