Business Formation
LLC in Illinois
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Who Should Open an LLC in Illinois?
Freelancers & consultants
Designers, developers, marketing specialists, IT contractors.
Professional services
Accountants, tax preparers, business advisors, real estate agents.
Trades & self-employed
Contractors, electricians, photographers, event planners.
E-commerce & online sellers
Amazon, Shopify, Etsy, digital products.
Small retail & hospitality
Restaurants, salons, boutiques, cleaning services.
Startups & family-owned businesses
Wanting flexible taxation and management.
Why Open in Illinois vs. Other States
You live or primarily operate in Illinois.
You need to register for Illinois state taxes and have a local presence.
You want to avoid double-registration (LLC in another state + “foreign LLC” in Illinois).
You plan to raise venture capital (Delaware C-Corp preferred).
You want enhanced privacy and lower annual fees (Wyoming/Nevada).
You operate entirely online with no Illinois physical presence.
Licensed professions like doctors, lawyers, and architects often require a Professional LLC (PLLC) or Professional Corporation (PC).
Venture-capital backed startups sometimes prefer a C-Corp.
Hobby income or very low-risk side projects.
DIY Step-by-Step
(No agent or lawyer)
Choose a name & check availability
optionally reserve the name (Form LLC-1.15, $25).
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Appoint an Illinois registered agent
Decide management
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Prepare & file Articles of Organization (Form LLC-5.5)
Get your EIN (free)
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Create an Operating Agreement.
Open a business bank account
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Register for Illinois taxes (as needed)
Consider an Assumed Name (DBA)
fee varies by year digit; renewal every five years
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Calendar your Annual Report
Comply with employment authorization (if working in the U.S.)
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Common Mistakes People Make
Your LLC name must be unique and distinguishable from all other registered entities in Illinois.
Check availability before filing:
https://apps.ilsos.gov/businessentitysearch/
Every Illinois LLC must have a registered agent with a physical Illinois address (P.O. boxes aren’t accepted). Missing or incorrect agent details cause instant rejection of your Articles of Organization.
Mistakes in your initial filing — such as incorrect management structure (member-managed vs. manager-managed) or missing organizer signatures — will delay processing. Review the official instructions carefully before submission:
https://www.ilsos.gov/departments/business_services/llc.html
While not filed with the state, an Operating Agreement is critical for defining ownership, duties, and voting rights. Without one, future disputes between members are harder to resolve.
Illinois requires an Annual Report each year before the first day of your LLC’s anniversary month.Late filings result in $100 penalties or administrative dissolution.
File online here:
https://www.ilsos.gov/departments/business_services/annual_reports.html
The principal business address must be a valid, physical U.S. address — not a P.O. box or virtual office without lease access.
After forming your LLC, you’ll need an Employer Identification Number (EIN) from the IRS to open bank accounts or hire employees.
Apply free online:
https://www.irs.gov/businesses/small-businesses-self-employed/apply-for-an-employer-identification-number-ein-online
Depending on your industry, you may also need to register for Illinois Sales Tax, Withholding Tax, or Unemployment Insurance:
https://mytax.illinois.gov/
Always keep copies of:
● Articles of Organization
● Filing receipt
● Operating Agreement
● EIN confirmation letter
● Annual Report confirmations
● These will be required for banks, lenders, or state verifications.
Even after formation, your LLC can lose good standing for missed reports or unpaid fees.
Regularly check your entity status here: https://apps.ilsos.gov/businessentitysearch/
To set up your LLC correctly, we’ll need:
● Exact LLC name and alternate choices (in case first choice is unavailable)• Business address (physical, not P.O. Box)
● Registered agent details (may use your own; also physical, not P.O. Box)
● Names and addresses of all members/managers
● Ownership percentages or management structure (member/manager)
● Business purpose or activity description
● Contact information for EIN application
Certificate of Good Standing
A Certificate of Good Standing proves your business is active, compliant, and authorized to operate.
It’s often required for:
● Opening business bank accounts
● Securing financing or investment
● Applying for licenses or permits
● Registering in another state
Our fee (including state fee): Starting at $125 (May vary depending on state of issuance)
Skip the rejections and confusion — we’ll confirm compliance, resolve missing filings, and deliver your certificate quickly.
Yes, you can do it yourself — but here’s the reality:
● DIY can cost more in the long run when mistakes cause delays or penalties
● State websites provide forms — not strategy or guidance
● We specialize in complex cases like conversions & redomestications
● We guide you through critical IRS tax-election decisions (such as Form 8832 or an S-Corp election) — because making the right choice early can save you thousands in taxes and compliance costs.
● We handle compliance so you can focus on growth
Let Victoria Handle It for You
Providing professional support in business formation, corporate compliance, and tax-related matters. From entity setup to IRS assistance, we help clients navigate regulatory requirements with clarity, accuracy, and confidence.
Disclaimer: Victoria Duchovny is an Enrolled Agent, Compliance Specialist, and licensed Notary Public. She is not an attorney and does not provide legal advice or legal representation. Services are limited to tax, compliance, and notarial support.
Nothing on this website or in any communication should be construed as legal advice. Clients seeking legal counsel or representation are encouraged to consult a licensed attorney.
Address:
Deerfield Executive Center
1020 Milwaukee Ave
Suite 320
Deerfield, IL 60015
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