Complete guide to requirements, costs, and the application process
Choose between sole proprietorship, LLC, corporation, or partnership. This affects your filing requirements and costs in Illinois.
File with Illinois Secretary of State at ilsos.gov. LLCs need Articles of Organization; corporations need Articles of Incorporation.
Apply for a free Employer Identification Number from the IRS at irs.gov. Required for tax filing, hiring employees, and opening a business bank account.
Submit your application to the local city or county clerk's office. Typical cost: $30–$1200. Processing time: 2-8 weeks (state) + 3-9 months (IRS 501(c)(3)).
Register for a sales tax permit. Obtain your state business license. Check for zoning, health, or industry-specific permits required in your municipality.
Mark your calendar for annual (annual report) + irs form 990 yearly renewal. File annual reports with Illinois Secretary of State and maintain any required insurance or bonding.
Select a city for specific local requirements, costs, and application steps.
A nonprofit incorporation in Illinois typically costs between $30 and $1200, depending on the city and business type. Illinois has complex tax requirements that vary by municipality.
Processing time is typically 2-8 weeks (state) + 3-9 months (IRS 501(c)(3)). Some cities may process faster or slower depending on application volume and completeness.
In Illinois, you typically apply through your local city or county clerk's office. The state regulatory agency is Illinois Secretary of State (ilsos.gov).
Yes, Illinois requires a separate state-level business license in addition to any local city permits.
Professional services can handle the paperwork for you.
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