Introduction
A standard Illinois LLC generally does not pay the state franchise tax. It does have to file an annual report, pay a filing fee, and handle any income, sales, or payroll taxes its activity triggers.
Many owners still struggle to separate the two. Illinois corporations can owe franchise tax, while LLCs pay an annual report fee that is not a tax. Repeal proposals and federal tax elections add another layer, so the rules get mixed up easily.
This guide covers how franchise tax differs from other Illinois taxes, annual report deadlines and penalties, and where repeal proposals actually stand. Dollar amounts are in US dollars, since they are Illinois charges.
Key Takeaways
- An ordinary Illinois LLC has no separate franchise tax but must file an annual report.
- Franchise tax rules apply to corporations, not to LLCs as such.
- The annual report fee is $75 (Form LLC-50.1).
- Repeal bills remain pending; corporations get a $10,000 exemption from 2025.
- Check current Secretary of State rules before filing.
Does Illinois Impose a Franchise Tax on LLCs?
No. Ordinary domestic and foreign LLCs are not subject to Illinois franchise tax. That tax applies to corporations; LLCs are governed by the LLC Act and pay a flat annual fee instead.
What the franchise tax is
The Illinois franchise tax is a charge on a corporation's privilege of doing business under Illinois authority. It is set out in the Business Corporation Act for domestic corporations and for foreign corporations in section 15.65. It is collected through the Secretary of State, separately from Department of Revenue income taxes.
LLCs file Form LLC-50.1 and pay a flat $75 fee. They do not run the paid-in-capital calculation corporations use.
An LLC is not tax-free
Depending on what the LLC does, it may still face:
- Federal income tax
- Illinois income or replacement tax
- Sales tax (6.25% general merchandise rate, plus local taxes)
- Employer withholding and unemployment registrations
- Local obligations
Not every LLC owes each one. Liability follows activity and classification.
Legal form versus tax classification
An LLC's legal form is set by the Secretary of State filing. Its federal tax classification is a separate matter, and Illinois income tax follows the federal treatment:
| Federal treatment | Illinois return | Rate notes |
|---|---|---|
| Single-member, disregarded | Owner's return | Individual rate 4.95% |
| Partnership | IL-1065 | 1.5% replacement tax |
| S corporation | IL-1120-ST | 1.5% replacement tax |
| C corporation | IL-1120 | 7% income tax, 2.5% replacement tax |
One caution: some law-firm commentary says an LLC electing corporate treatment becomes subject to franchise tax. The statute cited for that claim does not establish it, and no Secretary of State statement confirms it.
If your LLC has made a corporate election, get that point reviewed separately rather than assuming either answer.
What Illinois LLCs Actually Owe
The annual report
The annual report keeps state records current: company name, registered office and agent, principal business address, and managers or members with manager authority. A P.O. box alone does not work as the principal address.
Domestic and foreign LLCs file Form LLC-50.1 electronically or on paper. The fee is $75. An annual report does not change your registered agent; separate forms handle that.
Deadline
The report is due within the 60 days before the first day of the anniversary month, under 805 ILCS 180/50-1. The cutoff is the first day of that month, not the last.
For example, an LLC formed on May 15 files between early March and May 1 each year. The first report falls in the first anniversary cycle after formation.
Missing the deadline
The consequences stack up:
- Delinquency begins if you haven't filed and paid before the anniversary month starts.
- Penalty: $100 if not cured before the first day of the second month after the anniversary month, plus $100 for each later delinquent year.
- Administrative dissolution: the Secretary of State mails a delinquency notice, and a domestic LLC has 120 days from that notice to cure.
- Foreign LLCs risk revocation of admission instead.
- Reinstatement: Form LLC-35.40/45.65 costs $200, plus missing reports, fees, and penalties.
The domestic dissolution clock runs from the notice, not from the report deadline.
Filing checklist
- Confirm your anniversary month.
- Review registered agent and manager or member details.
- Prepare the report on LLC-50.1.
- Pay the $75 fee.
- Save the filing confirmation.
- Respond promptly to any state notice.
Corporations, Corporate Tax Elections, and Repeal Status
Who pays franchise tax
Domestic corporations (section 15.35) and foreign corporations registered in Illinois (section 15.65) pay the tax. An LLC that merely elects corporate income-tax treatment is a different case, as covered above.
How the corporate calculation works
At a high level:
- Paid-in capital means stated capital plus paid-in surplus.
- An allocation factor compares Illinois property and business to totals everywhere.
- The annual rate is 0.1% of the allocated base, with a $25 minimum and $2 million maximum.
- Initial and additional taxes generally run at 0.15%.
- The first $10,000 of liability is exempt for 2025 onward.
Corporations file this through their annual report (BCA 14.05). The corporate report still carries a $75 fee, so the exemption does not remove the filing. LLCs file LLC-50.1 with no such calculation.
Is the tax repealed?
No. Enacted law has moved the exemption in steps:
- 2019: a schedule leading to no payments from 2024 was passed.
- 2021: that phase-out was interrupted.
- 2023: exemptions of $1,000 (2021-2023) and $5,000 (2024).
- 2024: Public Act 103-0592 raised it to $10,000 from 2025.
Two repeal bills, HB2846 and HB5526, remain in the House Rules Committee (status as of March 2025 and February 2026). Neither is enacted. Even a corporate repeal would not remove an LLC's annual report, fee, or income tax duties.
Consider professional review if you have complex ownership, foreign registration, large paid-in capital, multi-state operations, or doubt whether your entity is legally an LLC or corporation.
Staying Compliant With Illinois LLC Requirements
Confirm three classifications first
Before filing, pin down:
- Your state-law entity type
- Your federal tax classification
- The activities that create Illinois tax or registration duties
Check the Secretary of State, Illinois Department of Revenue, IRS, and the Illinois statutes for each.
Build a compliance calendar
The annual report is one piece. A calendar should track:
- Annual report window
- Registered agent updates
- Income tax return dates
- Sales tax and payroll registrations (through MyTax Illinois or Form REG-1)
- Foreign qualification filings
Foreign-owned single-member LLCs also face federal filing duties, such as Form 5472 with a pro forma 1120. Improper filing can draw a penalty of up to $25,000.
Where VJM Global fits
VJM Global supports accounting, tax compliance, financial reporting, and advisory needs for USA-based companies, foreign investors, and multinational businesses coordinating US obligations. Its US work covers entity formation, state registrations, payroll, and return filing. For entity-specific advice, consult a qualified US tax professional.
Frequently Asked Questions
What is the Illinois franchise tax on LLCs?
An ordinary Illinois LLC generally isn't subject to the state franchise tax. It still files an annual report and handles any other taxes that apply.
Is the Illinois franchise tax repealed?
No. The exemption rose to $10,000 from 2025, but repeal bills remain in committee and are not enacted. Verify the tax year you're filing for.
What does an Illinois LLC pay instead of franchise tax?
A $75 annual report fee. Depending on activity and classification, it may also owe income, replacement, sales, payroll, or local taxes.
Does an LLC taxed as a corporation owe Illinois franchise tax?
Federal tax treatment differs from Illinois legal entity status, and whether franchise tax applies is not clearly settled. Confirm with the Secretary of State and a tax professional.
What happens if an Illinois LLC misses its annual report deadline?
A $100 penalty applies, then a delinquency notice. A domestic LLC has 120 days from the notice before dissolution. Reinstatement costs $200 plus outstanding amounts.
