How do I amend an LLC in Illinois?

You file Articles of Amendment, Form LLC-5.25, with the Illinois Secretary of State, Department of Business Services. The form identifies your LLC by file number and states the change to the Articles of Organization, most commonly the legal name. You can file online or by mail. The amendment takes legal effect once the Secretary of State processes and records it.

What is Form LLC-5.25 used for in Illinois?

Form LLC-5.25 is the Articles of Amendment used to change an Illinois LLC's Articles of Organization. Most often it changes the LLC's legal name, but it can also change the stated purpose, the management structure, or other provisions your articles include. Changing the registered agent or office uses a different form, so keep LLC-5.25 for changes to the articles themselves.

Do I need Form LLC-5.25 to change my registered agent in Illinois?

No. Changing your registered agent or registered office in Illinois is done on the dedicated statement of change of registered agent/office, not on the Articles of Amendment. Reserve Form LLC-5.25 for changes to the Articles of Organization, such as the LLC's name. Filing the wrong form leads to rejection and lost time, so match the change to the correct form.

How long does an Illinois LLC amendment take?

Standard processing through the Secretary of State typically takes several business days, and online filings are usually faster than mail. Expedited service is available for an additional fee if you need quicker turnaround. Because processing times shift with workload, check the Secretary of State's current estimates rather than assuming a fixed number of days.

Should I amend my Illinois LLC or dissolve it and start fresh?

A name change or a small correction is a simple amendment. But if the LLC is really becoming a different business, dissolving the Illinois LLC and forming a new one can be cleaner than carrying old obligations forward. Dissolving stops the annual report and state tax accounts; amending does not. The right choice depends on whether you are continuing the same company or replacing it.

How to Amend an LLC in Illinois (Form LLC-5.25)

Q: How much does it cost to amend an LLC in Illinois?

Illinois charges a filing fee for Articles of Amendment that is commonly cited around $50, though Illinois LLC fees have changed over the years. Confirm the current amount with the Secretary of State before filing rather than relying on an old guide. The amendment fee is separate from the $75 annual report every Illinois LLC files each year.

Filing agency

IL Secretary of State

Form

Articles of Amendment (LLC-5.25)

Fee

~$50 (confirm)

Processing

Several business days

What does it mean to amend an LLC in Illinois?

In Illinois, the document that creates your LLC is the Articles of Organizationfiled with the Secretary of State's Department of Business Services. Amending the LLC means formally changing something stated in those articles so the state's public record matches how the business actually operates. You do that by filing Articles of AmendmentForm LLC-5.25which references your LLC's file number and sets out the specific change.

The most common reason to file LLC-5.25 is a change of the LLC's legal name, whether you are rebranding or correcting the registered name. But not every change to your business is an amendment to the articles. Illinois separates the founding facts recorded in the articles from routine details like the registered agent, which are maintained on their own forms. Knowing which change belongs on which form is the difference between a clean filing and a rejection.

Articles vs. operating agreement

Form LLC-5.25 changes the public Articles of Organization filed with the state. Your private operating agreementwhich governs ownership percentages and internal management, is not filed with the Secretary of State and does not require an amendment to change.

Amendment vs. the annual report

It helps to separate a one-time amendment from the recurring annual report every Illinois LLC files. They are different obligations. The annual report is a yearly filing, currently $75, that keeps your LLC in good standing and confirms basic company information. An amendment is a separate, one-off filing you make only when you are changing what the Articles of Organization actually say, such as the company's legal name.

Missing the annual report is what pushes an Illinois LLC toward administrative dissolution; filing an amendment does not satisfy that yearly requirement, and paying the annual report does not record a name change. Keep the two in mind as separate tasks.

What changes need Form LLC-5.25?

You file Articles of Amendment when you are changing something stated in the Articles of Organization, such as:

The LLC's legal namethe most common reason. For the full rebrand checklist, see how to change an LLC name.
The management structurefor example, moving between member-managed and manager-managed if your articles state which applies.
The stated purpose or other provisions your articles include, if they change.

Until the amendment is processed, anyone searching the Secretary of State's records sees the old details, which is why you file promptly once the change is approved internally.

How to file the amendment, step by step

Approve the change internally as your operating agreement requires, and record the decision in writing.
Check name availability first, if changing the name. The new name must be distinguishable from other Illinois entities and satisfy LLC naming rules.
Complete Form LLC-5.25. Identify the LLC by its file number and state the exact amendment. For a name change, spell the new name precisely.
File with the Department of Business Services online or by mail, and pay the fee. Online filing is usually faster.
Update downstream records once processed: the IRS if the name changed, the Illinois Department of Revenue, your bank, licenses and contracts.

What it costs and how long it takes

Illinois's Articles of Amendment fee is commonly cited around $50but Illinois LLC fees have moved over the years, so confirm the current amount with the Secretary of State before filing. Standard processing usually takes several business days, with online filings faster than mail; expedited service is available for an extra fee. Because timelines change, check the Secretary of State's current estimates rather than assuming a set number of days.

The amendment fee is separate from the $75 annual report and from any state taxes. Always verify the current filing fee and processing window with the Illinois Secretary of State before you submit.

Changing your registered agent in Illinois

Changing your registered agent or registered office is handled on a dedicated statement of change, not on Form LLC-5.25. Keeping a valid agent on file is not optional: it is how the state and the courts reach your LLC, and a lapsed agent is a common route to losing good standing. If your only change is the agent, use the agent-change filing rather than a full amendment, it is a separate, cheaper filing.

When closing the LLC beats amending it

Amendment keeps the same company and changes a detail. But if what you really want is to be rid of this LLC, an amendment just keeps a company alive that is still generating obligations. This is where amendment connects back to dissolution.

An Illinois LLC keeps owing its $75 annual report to the Secretary of State every year, plus any state tax filings, until it is formally dissolved. Amending the LLC does nothing to stop that; only dissolving it in Illinois does. If you are amending because the original venture is finished and you are starting something genuinely different, it can be cleaner to close the old LLC and form a fresh one than to carry forward its history. The full sequence, the state filing, closing your IRS business account, and final returns, is on how to dissolve an LLC.

Amending does not stop the annual report

A dissolved Illinois LLC stops owing the annual report and state tax filings. An amended one keeps owing both. If the goal is to stop the recurring obligation, amendment is not the tool, dissolution is.

Deciding what to do next

If you are keeping the LLC and just need its name or articles to reflect a real change, Form LLC-5.25 is a straightforward filing you can handle with the steps above. If the change is really a fresh start, weigh whether closing the old LLC and beginning clean serves you better, remembering that until you dissolve, the annual report and any tax accounts keep running.

Whichever route you take, keep the change consistent everywhere it appears. An Illinois LLC name that is amended on Form LLC-5.25 but left stale on your EIN records, your Department of Revenue accounts, your bank signature cards and any state where the LLC is registered as a foreign entity creates exactly the kind of mismatch that stalls loans, license renewals and contracts later. The Secretary of State filing is quick; the follow-through across your records is what makes the amendment actually stick. List every place the old name or detail lives before you file, then work through it once the amendment is confirmed.

We do not sell amendment filing; our work is dissolution, closing an Illinois LLC properly so the state, the IRS and your tax accounts all agree it is finished. If you are unsure whether to amend or to close and start over, a specialist can talk it through first with no obligation. For the wider picture, start with the LLC amendment hub.

How to amend an LLC in Illinois