USA State Taxes

ILLINOIS (IL)

 

STATE INCOME TAX (SIT)

Description Amount Effective Date Website Deposit Method / Frequency / Threshold Forms
Wage Withholding 4.95% 2024

Illinois Revenue

 

Tax Tables - see forms.

 

Withholding (Payroll)

EFT Semi-Weekly EFT Over $200,000 (Jan – Dec & EFT prior year). If annual or monthly schedule exceeds $12,000 during any quarter use semi-weekly.

Annual - Due by 31-Jan of the following year

Monthly - Due 15th of following month. Use IL-501 Payment Coupon

File online or ACH credit at MyTax Illinois

Withholding forms and Tax tables

Withholding Income Tax Return - IL-941

Due quarterly or annually

 

Withholding Allowance Certificate - IL-W-4

Supplemental Wage / Bonus Rate 4.95% 2024

 

Notes: Must file a return even if no tax was withheld during the quarter or year.

IL has reciprocal agreements with Iowa, Kentucky, Michigan, and Wisconsin.

 

STATE UNEMPLOYMENT INSURANCE (SUI)

Description Amount Effective Date Website Deposit Method / Frequency / Threshold Forms
Maximum Taxable Earnings $13,590 Increased from $13,271 in 2023

Illinois Department of Employment Security

 

Rates

Quarterly

 

MyTax Illinois(same as SIT), EFT or check.

Contribution and Wage Report - UI-3/40
Employee Deduction None  

Employer Tax Rate

(Includes 0.55% fund-building surtax)

0.850 - 8.65% Increase from 2023

New Employment Rate - Standard

(Includes 0.55% fund-building surtax)

3.950% Unchanged from 2023
Voluntary Contribution Permitted No  

 

 

NEW HIRE REPORTING

Website Frequency / Method Forms

 

New Hire Reporting Login

Same as federal requirements.

Registered employers can login to complete the online New Hire Reporting Web form or upload a file.

 

 

 

WEBSITES

 

 

Disclaimer: This information is for reference only. To ensure accurate set up, we highly recommend that the information is verified with the applicable federal and state/provincial agencies. TimeTrex makes no claims, guarantees, or promises about the accuracy, current status, or completeness of the information provided. In no event shall TimeTrex be liable for any errors or omissions with respect to any resource information.

 

Last updated Jan 2024