Six checkpoints from idea to launch in Illinois.
Pick the right entity
LLC for most owners, Corporation for VC-track companies, sole prop for the simplest cases. We walk you through the trade-offs based on your liability, tax, and funding needs in Illinois.
Lock your Illinois name
We check live Illinois Secretary of State name availability and reserve the exact entity name on your formation filing. No waiting weeks to find out your first choice is taken.
Registered Agent included
Illinois requires every entity to maintain a Registered Agent with a physical Illinois address. Year one is included in every formation. Compliance Bundle keeps it active going forward.
EIN from the IRS
You need a federal EIN before you can open a Illinois business bank account or hire. We file Form SS-4 right after the Illinois Secretary of State accepts your entity. Typical turnaround 1-2 business days.
Illinois business licenses
Most businesses in Illinois need a county or city license plus any industry-specific permits. We map every license your specific business requires so you stop guessing.
Business banking ready
With your Illinois formation, EIN, and Operating Agreement in hand, you can open a business bank account at any US bank. We package the exact documents bankers ask for.
A clean handoff, in 7 steps.
Pick your Illinois entity type
LLC works for most small businesses (liability protection plus pass-through tax). Corporations make sense for VC-track companies or specific tax elections. Sole prop is fine for the leanest cases but provides no liability protection. We walk through your trade-offs.
Reserve your name with Illinois SOS
We run a live availability check against the Illinois Secretary of State database, confirm your chosen name meets Illinois naming rules (entity suffix, no restricted words), and lock it on your formation filing.
Designate Registered Agent
Illinois requires a physical-address agent inside the state. Year one is included with every formation. You can use ours or designate your own Illinois address.
File formation with the state
We prepare Articles of Organization (LLC) or Articles of Incorporation (Corporation), file electronically with Illinois SOS, and return the state-stamped document to your dashboard. Formation service is free. You pay only the Illinois state fee.
Get your EIN from the IRS
After Illinois acceptance, we file Form SS-4 with the IRS. Typical turnaround is 1-2 business days for US founders with an SSN, slightly longer for international founders filing by fax.
Map and apply for Illinois licenses
Most businesses need at least a county or city license, plus a sales tax permit if selling taxable goods, plus any industry-specific permits (food, contracting, professional services). We surface the full list inside the Compliance Bundle.
Open business banking
With your stamped Illinois formation document, EIN confirmation, and Operating Agreement, every major US bank can open your business account. Bring all three to your bank or use any online business banking provider.
Formation is free. Everything else is optional.
We do not charge a service fee to form your LLC or Corporation. State filing fees still apply and pass through at cost. Add the Compliance Bundle to handle the year-one filings everyone needs.
- LLC or Corporation formation (any state)
- EIN application with the IRS
- Articles of Organization or Incorporation drafted and filed
- Free BOS dashboard for ongoing visibility
- Filing receipts to your document vault
- Everything in Free Formation (no add-on fee)
- Registered Agent service in your state (1 entity)
- Annual Report AutoFile, filed every year on time
- Certificate of Good Standing (1 included per year)
- 1 Amendment included per year (address, member, name)
- Operating Agreement (LLC) or Bylaws (Corp)
- Deadline monitoring across all your filings
Common questions.
What kind of business entity should I form in Illinois?
The right entity in Illinois depends on how you will run and fund the business. Most owners choose an LLC for its liability protection and simple pass-through taxes; a corporation fits if you plan to raise venture capital or issue stock; and a sole proprietorship offers no protection at all. For most first-time Illinois founders an LLC is the practical default, and we can file whichever fits.
How much does it cost to start a business in Illinois?
Starting in Illinois has a few costs: the state filing fee to form your entity, our formation service (which is free), and later, licenses, an EIN (free from the IRS), and any Illinois annual report or franchise tax. Options like a registered agent are extra and disclosed. Current amounts are on the pricing page; the truly mandatory number is really just the state fee.
How long does it take to start a business in Illinois?
Forming can be same-day in some states and one to three weeks in others, depending on Illinois's queue and whether you expedite. The EIN is usually immediate, and licenses vary by activity. We file the moment your details check out and give you Illinois's realistic window, so you can plan a launch around a real date rather than a hopeful one.
Do I have to live in Illinois to start a business there?
No. You do not have to live in Illinois or be a resident to start a business there. What you need is a registered agent with a physical Illinois address to receive legal mail, which we provide, or you can serve as your own if you have a Illinois address. Where you live does not limit where you can form.
What kinds of businesses do well in Illinois?
Illinois supports a broad mix of industries, and the businesses that thrive are the ones matched to local demand, the cost of operating there, and the state's tax and regulatory climate. Rather than chase a trend, validate real demand and check which licenses your specific field needs in Illinois. We handle the compliance side so you can focus on proving the market.
Do I need a Illinois business license before I start operating?
Often yes. Forming your entity with Illinois is not the same as permission to operate; many activities need a state, local, or industry business license before you open. We map exactly which Illinois licenses your business needs so you are not caught operating without one, which can mean fines or a shutdown right as you are getting started.
Can I run a business in Illinois without forming an LLC?
You can operate in Illinois as a sole proprietor or partnership without forming an LLC, and some people start that way. The catch is liability: without a formal entity, your personal home and savings are exposed to business debts and lawsuits. For anything beyond the lowest-risk side project, forming an LLC is inexpensive protection well worth having from day one.
What ongoing filings does a Illinois business have?
A Illinois business generally carries recurring obligations: a periodic annual report, a registered agent, any state franchise tax, and license renewals, on top of federal and state taxes. Miss them and Illinois can revoke good standing or dissolve the entity. A compliance calendar keeps every date in view so the business you built stays in good standing.
Can I start a Illinois business as a non-US founder?
Yes. You do not need to be a US citizen or resident to start a business in Illinois. The one extra step is the EIN, which we obtain from the IRS for you without a Social Security Number, and that unlocks US banking and payment processing. A US LLC or C-corp is a common structure for international founders; our EIN guide is the place to begin.
Where to next?
Every filing connects into your File.Business operating system. Pick where to go from here: we keep the rest tracked.