Skip to main content
Corporate Legal Services (CLS)
CLS Home
Estimate
Services
Registered Agent
Nationwide coverage in all 50 states
Annual Reports
Track and file annual reports
Entity Formation
Form LLCs, Corps & more
Good Standing Certificates
Obtain certificates quickly
Foreign Qualification
Register in new states
Industries
Law Firms
Client entity management
CPA & Accounting
Multi-state compliance
Real Estate
Portfolio management
Construction
Contractor compliance
Banking & Fintech
Financial services
Healthcare
Medical practices
View All Industries
See all industry solutions
Tools
Entity Dashboard
Manage all your entities
Compliance Calendar
Track important deadlines
Compare Registered Agents
Compare registered agent fees
AI Compliance Assistant
AI-powered filing help
Pricing
Resources
Knowledge Center
Guides and articles
State Filing Requirements
Browse by state
FAQ
Frequently asked questions
Official State Websites
SOS & entity search links
Filing Forms Directory
State filing forms & downloads
About CLS
Our story, values & team
1-888-343-2006info@corporatelegalservices.com
CLS Home
Estimate
Services
Registered Agent
Annual Reports
Entity Formation
Good Standing Certificates
Foreign Qualification
Industries
Law Firms
CPA & Accounting
Real Estate
Construction
Banking & Fintech
Healthcare
View All Industries
Tools
Entity Dashboard
Compliance Calendar
Compare Registered Agents
AI Compliance Assistant
Pricing
Resources
Knowledge Center
State Filing Requirements
FAQ
Official State Websites
Filing Forms Directory
About CLS
1-888-343-2006
Filing Forms

Illinois Filing Forms

Browse 106 official Illinois filing forms for corporations, LLCs, partnerships, and more.

All States

Find Your Form

Step 1 of 5—Entity Type

What type of business entity are you filing for in Illinois?

All Illinois Filing Forms

106 forms organized by filing type.

Amendment(11 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
LLCForeignProfitStandardView Form
LLCDomesticProfitStandardView Form
LLCDomesticProfitRestated Articles of OrganizationView Form
LLCDomesticProfitCorrectionView Form
LLPDomesticProfitStandardView Form
LLPForeignProfitStandardView Form
LPDomesticProfitStandardView Form
LPDomesticProfitRestatedView Form
LPDomesticProfitCorrectionView Form
LPForeignProfitStandardView Form
LPForeignProfitRestatedView Form

Annual Report(10 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
LLCDomesticProfitStandardView Form
LLCForeignProfitStandardView Form
LLLPDomesticProfitStandardView Form
LLLPForeignProfitStandardView Form
LLPDomesticProfitAnnual RenewalView Form
LLPForeignProfitAnnual RenewalView Form
LPDomesticProfitStandardView Form
LPForeignProfitStandardView Form
LPDomesticProfitBiennial Renewal ReportView Form
LPForeignProfitBiennial Renewal ReportView Form

Articles(5 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
LLCDomesticProfitStandardView Form
LLCDomesticProfitArticles of Organization (Series)View Form
LLPDomesticProfitStatement of Partnership AuthorityView Form
LLPDomesticProfitStatement of RegistrationView Form
LPDomesticProfitStandardView Form

Change Of Agent(8 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
LLCDomesticProfitResignation of Registered AgentView Form
LLCDomesticProfitStandardView Form
LLPDomesticProfitStandardView Form
LLPForeignProfitStandardView Form
LLPForeignNon-ProfitStandardView Form
LLPDomesticNon-ProfitStandardView Form
LPDomesticProfitResignation of Registered AgentView Form
LPForeignProfitResignation of Registered AgentView Form

Conversion(4 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
LLLPDomesticProfitStandardView Form
LLLPForeignProfitStandardView Form
LPDomesticProfitStandardView Form
LPForeignProfitStandardView Form

Dissolution(3 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
LLCDomesticProfitStandardView Form
LLPDomesticProfitStandardView Form
LPDomesticProfitCancellationView Form

Merger(6 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
LLCDomesticProfitArticles of Merger between IL Corp and LLCView Form
LLCForeignProfitArticles of Merger between IL Corp and LLCView Form
LLCDomesticProfitStandardView Form
LLPDomesticProfitLLP/LP Statement of MergerView Form
LLPDomesticProfitLLP/LLC Statement of MergerView Form
LPDomesticProfitStandardView Form

Miscellaneous(9 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
GPDomesticProfitStatement of DomesticationView Form
LLCDomesticProfitPetition for RefundView Form
LLCDomesticProfitCertificate of DesignationView Form
LLCDomesticProfitStatement of DomesticationView Form
LLPDomesticProfitStatement of DenialView Form
LLPDomesticProfitStatement of DissociationView Form
LLPDomesticProfitStatement of DomesticationView Form
LPDomesticProfitCertificate of LPView Form
LPDomesticProfitStatement of DomesticationView Form

Name Registration(3 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
LLCForeignProfitCancellationView Form
LLCForeignProfitStandardView Form
LLCForeignProfitRenewalView Form

Qualification(4 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
LLCForeignProfitStandardView Form
LLCForeignProfit(Series)View Form
LLPForeignProfitStandardView Form
LPForeignProfitStandardView Form

Reinstatement(7 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
LLCDomesticProfitStandardView Form
LLLPDomesticProfitStandardView Form
LLLPForeignProfitStandardView Form
LPDomesticProfitAfter Administrative DissolutionView Form
LPForeignProfitAfter Administrative DissolutionView Form
LPDomesticProfitStandardView Form
LPForeignProfitStandardView Form

Trade Mark(32 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
Business TrustDomesticProfitRenewal ApplicationView Form
Business TrustDomesticProfitAssignment ApplicationView Form
Business TrustDomesticProfitApplication for Change of Name and/or Address of RegistrantView Form
Business TrustDomesticProfitApplicationView Form
GPDomesticProfitRenewal ApplicationView Form
GPDomesticProfitAssignment ApplicationView Form
GPDomesticProfitApplication for Change of Name and/or Address of RegistrantView Form
GPDomesticProfitApplicationView Form
LLCDomesticProfitRenewal ApplicationView Form
LLCDomesticProfitAssignment ApplicationView Form
LLCDomesticProfitApplication for Change of Name and/or Address of RegistrantView Form
LLCDomesticProfitApplicationView Form
LLLPDomesticProfitRenewal ApplicationView Form
LLLPDomesticProfitAssignment ApplicationView Form
LLLPDomesticProfitApplication for Change of Name and/or Address of RegistrantView Form
LLLPDomesticProfitApplicationView Form
LLPDomesticProfitRenewal ApplicationView Form
LLPDomesticProfitAssignment ApplicationView Form
LLPDomesticProfitApplication for Change of Name and/or Address of RegistrantView Form
LLPDomesticProfitApplicationView Form
LPDomesticProfitRenewal ApplicationView Form
LPDomesticProfitAssignment ApplicationView Form
LPDomesticProfitApplication for Change of Name and/or Address of RegistrantView Form
LPDomesticProfitApplicationView Form
PLCDomesticProfitRenewal ApplicationView Form
PLCDomesticProfitAssignment ApplicationView Form
PLCDomesticProfitApplication for Change of Name and/or Address of RegistrantView Form
PLCDomesticProfitApplicationView Form
PLLCDomesticProfitRenewal ApplicationView Form
PLLCDomesticProfitAssignment ApplicationView Form
PLLCDomesticProfitApplication for Change of Name and/or Address of RegistrantView Form
PLLCDomesticProfitApplicationView Form

Withdrawal(4 forms)

Entity TypeDomicileFinancial TypeDescriptionForm Link
LLCForeignProfitStandardView Form
LLCDomesticProfitStandardView Form
LLPForeignProfitStandardView Form
LPForeignProfitCancellationView Form

Need Help Filing in Illinois?

CLS handles registered agent service, entity formation, and annual report filings in Illinois and all 50 states. Let us manage your compliance so you can focus on your business.

Corporate Legal Services (CLS)

Streamlined regulatory solutions that minimize overhead, mitigate liability, and accelerate expansion.

1-888-343-2006info@corporatelegalservices.com
Costa Mesa, CA

Services

  • Registered Agent
  • Annual Reports
  • Foreign Qualification
  • Good Standing
  • Entity Formation

Resources

  • Knowledge Center
  • State Guides
  • Compare Registered Agents
  • Pricing
  • FAQ
  • Official State Websites
  • Filing Forms Directory

Company

  • About Us
  • Contact
  • Industries
  • Privacy Policy
  • Terms of Service

© 2026 Corporate Legal Services (CLS). All rights reserved.