Illinois Registered Agent Service
Yes. Every Illinois LLC and corporation must continuously maintain a registered agent and a registered office in Illinois. The agent must be an individual who resides in Illinois or an entity authorized to transact business here, and the registered office must be a street or road address — a PO box alone is not accepted — identical to the agent’s own business office.
Verified against the Illinois Secretary of State, Department of Business Services · Reviewed September 2026
- Appointed the same day
- Real Illinois street address
- Every US filing jurisdiction, one login
- Required?
- Yes, always
- Address rule
- Street address in IL, identical to the agent’s office
- Form to switch agents
- Statement of Change of Registered Agent and/or Registered Office
- Key deadline
- Before the 1st of your anniversary monthSee all deadlines
Your Illinois year
Every recurring Illinois filing on a single line, with a two-week heads-up before each due date.
- January: Annual report (Form LLC-50.1) due, Jan 1
- February
- March
- April
- May
- June
- July
- August
- September
- October
- November
- December
One filing a year: Annual report (Form LLC-50.1), due the first day of your anniversary month.
Deadline rules from the Illinois Secretary of State, Department of Business Services · reviewed September 2026. We confirm every date when you file.
Illinois registered agent requirements
The rule
Governing statute: 805 ILCS 180/1-35 (registered agent and registered office) and 805 ILCS 180/1-36 (change of agent or office) for LLCs, with the annual report at 805 ILCS 180/50-1; corporations under 805 ILCS 5/5.05 and 805 ILCS 5/14.05
The registered office must be located in Illinois, have a street or road address or a rural route and box number (a PO box alone will not be accepted), and be identical to the business office address of the registered agent. The agent must be an individual who resides in Illinois or an entity authorized to transact business in Illinois, and may be an organizer, manager, member or employee of the company.
Because the registered office must be the agent’s own business office, someone has to be at that Illinois address to accept service of process and the Secretary of State’s mail — the state sends the pre-filled annual report to the registered agent about forty-five days before it is due.
If you have no agent
The Secretary of State’s own guidance is blunt: failure to maintain a registered agent and a registered office will ultimately result in the involuntary dissolution of the company, and in the meantime the annual report notice never reaches you.
Operating beyond Illinois? Compare agent requirements state by state — the term, the address rule and the recurring filing all change at the state line.
Illinois filings and deadlines
| Obligation | Form | Due | Late penalty |
|---|---|---|---|
| LLC formation (Articles of Organization) | Articles of Organization (Form LLC-5.5) | At formation | N/A |
| LLC annual report | Annual Report (Form LLC-50.1, or filed online) | Before the first day of your anniversary month — the month your Articles of Organization became effective — every year | A late filing penalty applies if the report is not filed within sixty days after the due date, and continued delinquency leads to administrative dissolution |
| Change of registered agent or registered office | Statement of Change of Registered Agent and/or Registered Office (Form LLC-1.36/1.37), or the Secretary of State’s online change application | When the agent or office changes | N/A |
| Corporation annual report and franchise tax | Domestic Corporation Annual Report (Form BCA 14.05) | Before the first day of the corporation’s anniversary month, with paid-in capital reported as of the last day of the third month preceding that month | Penalties and interest are added when the report or the franchise tax is late |
State fees change; we confirm current amounts with you before anything is filed.
What we file for you in Illinois
- Every filing in the table above, prepared and submitted on time
- Reminders ahead of each deadline, for every entity you hold
- State fees confirmed with you before anything is filed
Priced for your portfolio, not a rate card.
Every Illinois quote is built around your entities, your states and your filings — one entity or hundreds. Most quotes are same-day.
How to appoint or change your registered agent in Illinois
5 steps
to switch your registered agent in Illinois.
Step 1: Pick an agent who resides in Illinois or an entity authorized to transact business here, and confirm they agree to serve
Step 2: Make sure the new registered office is an Illinois street or road address identical to that agent’s business office — a PO box alone is rejected
Submit
Step 3: File the change online through the Secretary of State’s LLC change of registered agent application if the company is in good standing, or file Form LLC-1.36/1.37 on paper
Illinois formStatement of Change of Registered Agent and/or Registered Office (Form LLC-1.36/1.37), or the online LLC change of registered agent applicationStep 4: Do not try to make the change on the annual report: the Secretary of State requires you to file the report showing no changes and then file the agent change separately
Records
Step 5: Keep the filed statement and check the record after processing — the office reviews non-expedited online changes within about ten days
Change fee · Set by the stateAny state fee for this change is confirmed with you before anything is filed.
We handle the whole swapCan you be your own registered agent in Illinois?
Yes, if you personally reside in Illinois — the agent may be the company’s organizer, manager, member or employee, as long as the registered office is that agent’s own Illinois business office. The registered office has to match your business office exactly and cannot be a PO box, so a home address becomes the public record for service of process. It is also where the state mails the pre-filled annual report about forty-five days before the anniversary-month deadline, and Illinois will not let you fix an agent change on the report itself. The full guide: Can you be your own registered agent?
Should you be your own registered agent?
Three honest questions about Illinois. If you don’t need us, we’ll say so.
- Address privacyNow
- Reaching you with legal papers
- Other states
Is it fine if your home or office address goes on the public record?
As your own registered agent, the street address you list is the one that appears on Illinois's public record.
Should you even hire a registered agent?
If you live in Illinois, keep regular hours at a fixed address, and run one entity, you may not need us, and we will tell you so. A service earns its keep when you value privacy, travel, run more than one entity, or operate across state lines.
| What the job involves in Illinois | Be your own agent | LLCity |
|---|---|---|
| Street address in IL, identical to the agent’s office | Your home or office, on public record | Our Illinois address, your privacy kept |
| You must be reliably reachable to accept and forward service of process | On you, every business day | Always staffed, scanned the day it arrives |
| Multi-state coverage | One state only | All 50 plus DC and Puerto Rico, one login |
| Deadline tracking | On you | Reminders before every deadline |
| Served in front of clients | Possible | Never, it comes to us |
Why businesses in Illinois choose LLCity
Your Illinois registered agent
Same-day appointment, mail scanned on arrival, and compliance reminders before every deadline.
- Real Illinois street address (no PO box)
- Every notice scanned the day it arrives
- One dashboard for every state you operate in
One login
Every entity and every state in a single dashboard.
Every deadline tracked
Yours fall when your states say they fall. We watch all of them.
Every entity
Add states and entities without adding vendors.
Managing agents for more than three entities?
One agent, one login, and every state deadline tracked for every entity you own.
Put Illinois’s deadlines in your calendar
Set your formation date and download reminders for every recurring Illinois filing — or have us email them.
Annual report (Form LLC-50.1)
Next due: January 1, 2027 · repeats yearly · Due before the first day of your formation-anniversary month; corporations file on the same anniversary cycle with franchise tax
Dates sourced from the Illinois filing office and carrying the month we last checked them. Schedules change — we confirm everything before anything is filed.
Illinois registered agent FAQ
Do I need a registered agent in Illinois?
Yes. Every Illinois LLC and corporation must continuously maintain a registered agent and registered office in Illinois under 805 ILCS 180/1-35. The agent is an individual who resides in Illinois or an entity authorized to transact business here, and the registered office must be an Illinois street address — a PO box alone is rejected — identical to the agent’s business office.
Can I be my own registered agent in Illinois?
Yes, if you reside in Illinois. The Secretary of State allows an organizer, manager, member or employee to serve. The catch is that the registered office must be that person’s own Illinois business office and cannot be a PO box, so a home address becomes public, and it is where the state mails your pre-filled annual report before the anniversary-month deadline.
What happens if my Illinois LLC has no registered agent?
The Secretary of State warns that failing to maintain a registered agent and registered office will ultimately result in involuntary dissolution of the company. Before that, the practical damage lands first: the pre-filled annual report and every legal notice go to an address that no longer works, so you miss the deadline and any lawsuit filed against you.
How do I change my registered agent in Illinois?
File Form LLC-1.36/1.37, the Statement of Change of Registered Agent and/or Registered Office, or use the Secretary of State’s online change application if your LLC is in good standing. You cannot make the change on the annual report — the state requires the report to show no changes and the agent change to be filed separately.
How much does an Illinois registered agent cost?
Pricing is custom to your portfolio of entities and states, and most quotes are same-day. Call 212-202-5750 or start a filing and we’ll price exactly what you need. State filing fees are set by the state and confirmed with you before anything is filed.
Figures verified against the Illinois Secretary of State, Department of Business Services (www.ilsos.gov/content/dam/publications/pdf_publications/c334.pdf) · Last updated September 2026
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