Employer Frequently Used Forms and Publications

Some of the most frequently used forms and publications by employers are provided below, covering topics and specific questions that often come up when doing business with IDES. Click here for more employer forms.


UI-HA Report for Household Employers (Tax) Form & Instructions 2017
IDES form used to report wages of household employees (Illinois).
Employers can also file online using https:mytax.illinois.gov. Updated 1/2019
Unemployment Insurance Notice (Poster)
This poster fulfills all posting requirements for the Illinois Department of Employment Security. Employers are required to post this notice in a conspicuous place for all employees.
Report to Determine Liability Under the UI Act (Form UI-1)
This IDES form must be filed within 30 days by any employing unit that commences business in Illinois, whether by purchase of a business already being operated, by starting a new business, or otherwise.

Barcode added.

Employers Claim for Adjustment or Refund (Form UI-28)
If there is an overpayment on your account, request a refund online at mytax.illinois.gov, or by completing this UI-28 form and faxing it to 217-557-1948.

Barcode added.

Power of Attorney for Representing Employer under the Illinois Unemployment Insurance Act (Form LE-10) and Special Mailing Form (Form UI-1M)
These forms are used to authorize an individual to represent the Employer before the Director (of IDES) in any and all matters, and to receive information pertaining to the Employer's liability under the UI Act. (Rev. 10/17)

Barcode added.
Notice of Change (Form UI-50A)
Employers use this form to report name, address, telephone, or other material changes to the business. It is also used to close a business UI tax account. Barcode added. Revised 11/17.

Employers Contribution and Wage Report (Form UI-3/40, Quarterly)
For employers filing paper-style contribution and wage reports, use the IDES Form Ul-3/40. Note: the department's new MyTax Illinois is the preferred method for filing both monthly and quarterly reports. Barcode & overview added. (Rev. 1/18)

Voluntary Leave Questionnaire - Employers (Form ADJ002FE)
An employer form used to collect information about whether an individual who quits his/her job did so without good cause attributable to his/her employer.
Able and Available Questionnaire for Employers (Form ADJ017FE)
IDES uses this form to determine whether an unemployed individual able to work, available for work and actively seeking work. The information provided will be used for the purpose of determining a claimant's eligibility for benefits.
Application for Revision of Benefit Charges (Form BCS001F)
The form is used by an employer to protest benefit charges for former employee(s) who may have been erroneously paid unemployment benefits.