BUSINESS FORMATION · ILLINOIS
Start Your Business the Right Way
LLC, corporation, or nonprofit — we help you form your business correctly from day one, so the paperwork doesn't slow down your launch.
What's Included
- LLC formation and registered agent guidance
- Corporation (S-corp / C-corp) setup
- Nonprofit formation
- EIN application assistance
- Guidance on Illinois state filing requirements
Who It's For
New entrepreneurs launching their first business, and existing sole proprietors ready to formalize.
How It Works
A short conversation about your business goals and structure, filing of your formation documents, then a hand-off to bookkeeping, QuickBooks, and tax setup so the new entity starts off compliant.
Illinois Considerations
Illinois LLCs and corporations file formation documents with the Illinois Secretary of State and must maintain a registered agent with an Illinois address. Illinois also requires an annual report to keep an entity in good standing after formation.
Documents You May Need
- Your business name, plus a backup choice in case it's already taken
- The names and addresses of members, managers, or officers
- A registered agent address in Illinois
- Your EIN, if you already have one
Why Choose AG Accountant LLC
Formation is just the start. Because we also handle bookkeeping, QuickBooks setup, payroll, and tax preparation, your new entity's books are set up correctly from day one instead of needing cleanup later.
Frequently Asked Questions
How long does LLC formation take in Illinois?
Processing times vary with the Illinois Secretary of State. We'll let you know current expected timing when we file.
Do I need an EIN?
Most LLCs and corporations need an EIN (Employer Identification Number) from the IRS to open a business bank account, hire employees, or file certain tax returns. We can assist with the application.
What's the difference between an LLC and an S-corp?
An LLC is a legal business structure; an S-corp is a tax election that an eligible LLC or corporation can make. The right choice depends on your income, growth plans, and payroll situation — we're happy to talk through the tradeoffs.
What happens after my business is formed?
Most clients move directly into QuickBooks setup and bookkeeping, so the business has clean books from its very first transaction.
Service Area
We form entities with the Illinois Secretary of State for clients in Plainfield, throughout Illinois, and the greater Chicago area.
Related Services
Often paired with business formation
Ready to get started with business formation?
Send a note about your situation and we'll follow up with next steps and what to bring.