How to Form an LLC in Illinois (2026 Guide)
Last updated: July 21, 2026
Quick note: we're operators, not attorneys or accountants. This is general educational info, not legal or tax advice — confirm current Illinois requirements with the state and a licensed pro before filing.
Illinois is a straightforward state to form in — no surprise requirements, just a slightly higher filing fee. Here's the whole process in plain English, written for people starting something real like a courier route.
How to start an Illinois LLC in 6 steps
Name it, appoint an Illinois registered agent, file the Articles ($150), write an operating agreement, get a free EIN, then file the $75 annual report before your anniversary month.
Name your Illinois LLC
Your name must be distinguishable from other Illinois businesses and include "LLC" or "Limited Liability Company." Search it on the Secretary of State's business database first so your filing isn't rejected, and grab the matching domain.
Appoint an Illinois registered agent
Illinois requires a registered agent with a physical Illinois street address (no PO boxes), available during business hours. You can act as your own agent for free, or use a service to keep your home address off the public record — useful for a courier working from home. Northwest includes registered-agent service free the first year with their $39 filing.
File the Articles of Organization
This is the document that creates your LLC. File it with the Illinois Secretary of State and pay the $150 filing fee. Filing online is fastest; approval usually takes about 7–10 business days.
Write an operating agreement
Illinois doesn't require one, but create it anyway. It sets out ownership and management, backs up your liability protection, and banks usually want to see it. A filled-in template covers most single-owner courier businesses.
Get a free EIN from the IRS
Get your EIN free at irs.gov in a few minutes — you need it for a business bank account and taxes. Don't pay a third party for one.
File the annual report before your anniversary month
Every Illinois LLC files a $75 annual report each year, due before the first day of your anniversary month (the month you originally filed). The Secretary of State mails a reminder to your registered agent, but filing on time is your responsibility regardless. Late filings add a penalty.
Illinois LLC cost breakdown
$150 to form, then $75 a year to stay in good standing.
| Item | Cost | Required? |
|---|---|---|
| Articles of Organization | $150 one-time | Yes |
| EIN | Free from the IRS | Yes (free) |
| Registered agent service | $0 (yourself) – $300/yr | No |
| Annual report | $75/yr (before anniversary month) | Yes |
Illinois figures as of 2026. Verify current amounts at ilsos.gov before filing.
Setting up to run courier routes in Illinois?
The LLC is step one. Our course covers the rest — insurance and certifications, the business bank account, and how to find routes and win contracts with Illinois clinics, labs, and hospitals.
Start Your 7-Day Free TrialIllinois LLC FAQs
How much does it cost to start an LLC in Illinois?
The Articles of Organization fee is a one-time $150. Your EIN is free, so many Illinois LLCs cost about $150 to form, then $75 a year for the annual report.
When is the Illinois annual report due?
Before the first day of your anniversary month — the month you originally filed your Articles — every year, for $75. An LLC formed in June files by May 31 each following year.
Can I be my own registered agent in Illinois?
Yes, at no cost, if you have a physical Illinois street address (no PO box) and are available during business hours. A commercial service keeps your home address off the public record.
How long does it take to form an LLC in Illinois?
Online filings usually process within about 7–10 business days. Expedited processing is available for an additional fee if you need it faster.
← Back to How to Start an LLC (main guide)