Illinois Articles of Amendment for LLCs: Common 2026 Update Scenarios

Illinois LLC owners often assume they can clean up major company changes on the annual report.

Illinois says otherwise.

For several important updates, the Secretary of State requires a separate amendatory filing, and the core form is Articles of Amendment (LLC-5.25).

What changes can Illinois LLC-5.25 cover?

The current Illinois LLC-5.25 form lists several amendment scenarios, including:

• admission of a new manager
• withdrawal of a manager
• change in address of the records office or principal place of business
• change of registered agent and/or registered agent’s office
• change in the LLC’s name
• change in date of dissolution
• authority to issue series
• and other amendment information

That makes the form broader than many owners expect. It is not just for a company-name change.

What is the filing fee in 2026?

The current Illinois LLC-5.25 PDF lists a:

• $50 filing fee

The Illinois LLC publications-and-forms page also lists Articles of Amendment with a $50 standard filing fee and a higher expedited amount.

Can the Illinois annual report handle these changes instead?

Not for everything.

Illinois’ annual-report instructions say that while the annual report can still be filed electronically, a separate filing of the appropriate amendatory document is required to effect a change in:

• the company name
• duration
• purpose
• or management type

That is an easy rule to miss, and it is why many Illinois LLCs need a separate amendment filing even when annual-report season is close.

Which changes are most common in practice?

1. Changing the LLC name

Illinois’ amendment guidance says a name-change amendment may be filed online in some cases, but only for a domestic Illinois LLC that meets the state’s eligibility rules.

The state also says only amendments effecting the name change of a domestic LLC can be filed online through that specific workflow. Other changes still use LLC-5.25.

2. Adding or removing a manager

The current form specifically lists:

• admission of a new manager
• withdrawal of a manager

That makes manager updates one of the clearest examples of an amendment filing.

3. Updating the records office or principal place of business

Illinois includes changes to the records office or principal place of business on the amendment form and requires a physical street address. A P.O. Box alone or c/o address is unacceptable under the current form language.

4. Changing the registered agent or registered office

Illinois also separately offers a Statement of Change of Registered Agent and/or Registered Office with its own fee. But the current LLC-5.25 form itself also includes a registered-agent change option.

For owners, the practical lesson is to match the filing to the exact change path Illinois provides instead of assuming every update belongs on the annual report.

What timing rules matter?

Illinois’ online amendment page says:

• non-expedited online name-change amendments will be reviewed within 10 days of submission
• expedited submissions are reviewed within 24 hours, excluding weekends and holidays
• a later effective date may be used on the paper amendment form, but it cannot exceed 30 days after the filing date

That timing flexibility can help if the LLC wants the legal change to line up with a later internal transition date.

A simple Illinois example

If an Illinois LLC wants to:

• remove one manager
• add a new manager
• and change the company name

it should not assume the annual report will fix the record.

A better approach is to prepare the appropriate amendment filing, confirm the new name is available, decide whether a later effective date is needed, and submit the amendment with the filing fee.

2026 Illinois amendment checklist

• [ ] Identify whether the LLC is changing its name, managers, records office, registered agent, or another public record item.
• [ ] Use LLC-5.25 when the update belongs in the Articles of Amendment workflow.
• [ ] Budget for the $50 filing fee.
• [ ] Do not rely on the annual report for changes Illinois says require a separate amendatory filing.
• [ ] Use a physical street address where the form requires one.
• [ ] Decide whether the filing should be effective on the file date or up to 30 days later.

FAQ

What is Illinois form LLC-5.25 used for?

It is the state’s Articles of Amendment form for multiple common LLC updates, including manager changes, name changes, office-address changes, and other amendment items.

How much is the filing fee?

The current form lists a $50 filing fee.

Can I make these changes on the Illinois annual report?

Not always. Illinois says changes to the company name, duration, purpose, or management type require a separate amendatory filing.

Can Illinois amendments have a later effective date?

Yes. The current form allows a later effective date, but it cannot be more than 30 days after the filing date.

Are PO boxes allowed for the office-address fields on the amendment form?

No. The current form says a P.O. Box alone or c/o is unacceptable for those address changes.

Final takeaway

Illinois amendment rules are manageable once you stop treating the annual report as a catch-all. In 2026, LLC-5.25 is the key form for many of the updates that matter most, especially company-name and manager changes.

If your Illinois LLC is making a larger compliance cleanup, it helps to separate routine reporting from true amendatory filings so nothing important is left sitting in the wrong bucket.

Source Notes

• Illinois Articles of Amendment instructions: https://www.ilsos.gov/departments/business-services/amendments/llc-instructions.html
• Illinois LLC annual report instructions: https://apps.ilsos.gov/llcarpt/instructions.jsp
• Illinois LLC-5.25 PDF: https://www.ilsos.gov/content/dam/publications/pdf_publications/llc525.pdf
• Illinois LLC publications and forms page: https://www.ilsos.gov/publications/business-services/llc.html