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https://www.illinoislegalaid.org/legal-information/affidavit-last-known-address-unemployment
Date: 09/26/2025

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If you want to appeal a Board of Review decision about your unemployment insurance benefits, you will need to file an Affidavit A notarized written statement signed by a person under oath of Last Known Address, along with a Complaint for Administrative Review and a Summons. 

Check with your local clerk of court's office to see if they have an Affidavit of Last Known Address form. If they do, use your local court's form. If no form exists, you can use this form. 

Learn how to appeal a Board of Review decision for unemployment. 

This Affidavit of Last Known Address is specific to administrative reviews for unemployment and should not be used for other cases. 

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What do I need first?

To complete this form, you will need: 

  • The name of the employer your complaint is against, and
  • The employer's address. 
Last full review by a subject matter expert
January 02, 2024
Last revised by staff
January 02, 2024

About our legal information

Learn more

How to appeal a Board of Review decision for unemployment
Being denied unemployment insurance
How to file an administrative review action for unemployment insurance

Worried about doing this on your own?  You may be able to get free legal help.

Apply Online

Learn more

How to appeal a Board of Review decision for unemployment
Being denied unemployment insurance
How to file an administrative review action for unemployment insurance
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© 2025 Illinois Legal Aid Online. 
All rights reserved.
 
ILAO is a registered 501(c)(3) nonprofit organization. ILAO's tax identification number is 20-2917133.