Illinois LLC Cost: Filing Fee, Annual Fees and 5-Year Total
Forming an LLC in Illinois costs $150 in state filing fees and then $75 a year to keep it active. Illinois's estimated five-year state costs of $450 are 34% above the 51-jurisdiction median of $335.
Checked against official state sources (October 2026) · Last verified: October 29, 2026 · Sources
What an LLC costs in Illinois
| Item | Amount | Notes |
|---|---|---|
| Formation filing fee | $150 | One time |
| Recurring state filing / report fee | $75/yr | Annual report, $75 |
| Year-one cost | $150 | Formation fee + any year-one extra |
| Estimated 5-year state costs | $450 | Formation + year-one extras + 4 years of filing / report fees; ranks 35th cheapest of 51 |
The five-year figure counts state government fees and, where one applies, the separate mandatory annual state tax shown above. It assumes a single-member LLC owned by an individual with little or no income. It excludes registered agent services, formation-service fees, publication costs, local business licenses, income-based state taxes (income, gross-receipts, B&O, sales) and any optional extras. How we calculate it.
Other state taxes (not in the totals)
A disregarded single-member LLC has no Illinois entity-level income tax and does not pay Personal Property Replacement Tax, which applies to corporations, partnerships, trusts and S corporations. The $75 annual report is the recurring state cost.
Verified details
- Articles of Organization (Form LLC-5.5): $150.
- Annual report: $75, due before the first day of the anniversary month (for example, before September 1 for an LLC formed in September); it can be filed in the 60 days before that date. A $100 late penalty can apply.
Annual reports and upkeep
Illinois filing cadence: Annual (before anniversary month). Annual report, $75. Missing filings can lead to late fees and, eventually, administrative dissolution, so put the dates in a calendar. See annual reports and franchise taxes explained.
How to form an LLC in Illinois
- Check the name. Search the Illinois business records on the Secretary of State / filing office site to confirm your LLC name is available and includes an LLC designator.
- Pick a registered agent. Every state requires a registered agent with a physical street address in the state. You can serve as your own agent if you live in Illinois and are reachable during business hours, or hire a commercial agent. Registered agent guide.
- File the formation document. The state filing fee is $150. Use the state's online filing portal where available; paper filing is slower.
- Write an operating agreement. Most states do not require you to file one, but banks and partners typically ask for it, and it sets ownership and decision rules. Operating agreement basics.
- Get an EIN. The IRS issues EINs for free through its online application. Beware of sites that charge for it.
- Open a business bank account and calendar the deadlines. Put the annual (before anniversary month) filing dates in a calendar so the LLC stays in good standing.
Want someone else to handle the filing in Illinois?
A formation service files the paperwork for a fee on top of the state fee and often includes a first year of registered agent service. It saves time, but you can file directly with the state for the state fee alone. Compare DIY and services.
See a formation service (partner link) Sponsored
Living or operating outside Illinois?
You can form an LLC in Illinois even if you live elsewhere, but if you actually do business in your home state you will usually also have to register the LLC there as a foreign LLC and pay that state's fees, so you may pay twice. In Texas, for example, an out-of-state LLC transacting business pays $750 to register. See forming an LLC in a state other than your own.
Compare Illinois with similar-cost states
| State | Formation | Annual | 5-yr total |
|---|---|---|---|
| Alaska | $250 | $50 | $450 |
| Connecticut | $120 | $80 | $440 |
| Washington | $180 | $70 | $460 |
| New Hampshire | $100 | $100 | $500 |
Head-to-head: Illinois vs California · Illinois vs Texas · Illinois vs Florida · Illinois vs New York · Illinois vs Delaware · Illinois vs Wyoming · Illinois vs Nevada · Illinois vs New Mexico
Frequently asked questions
How much does it cost to start an LLC in Illinois?
The state filing fee is $150. Add a registered agent if you do not serve as your own, plus any local licenses.
What is the annual cost of an LLC in Illinois?
Annual report, $75. That works out to about $75 per year in state fees.
Do I need a registered agent in Illinois?
Yes. Illinois requires every LLC to maintain a registered agent with a physical address in the state. You may act as your own agent if you meet the state's requirements.
Do I need an operating agreement in Illinois?
Most states do not make you file one, but you should have one. Check Illinois's LLC statute and ask your bank what it requires. We do not give legal advice.
Is Illinois cheap compared with other states?
Illinois's estimated five-year state costs of $450 are 34% above the 51-jurisdiction median of $335.
Sources
- Illinois official filing site: www.ilsos.gov
- IL SOS: LLC publications and forms
- IL SOS: file an annual report
- 805 ILCS 180/50-1
- IL Dept. of Revenue: LLC taxation answer
- IL Dept. of Revenue: personal property replacement tax
Fees change. Confirm the amount on the state's official page before you file.
Fee data: official state government pages and statutes (checked October 28–29, 2026); sources are linked on each state page. See our methodology. Not legal or tax advice.