You must make your request in writing and attach evidence to support your application. Complete the application form online (it can be saved to your computer). When you have completed the application, you can lodge it online by logging into Online services for business .
The IL-W-4 form is fairly straightforward. The employee must enter their name, social security number, street address, city, state, and zip code. They must also indicate the number of allowances they want to claim or are legally allowed to claim.
Employers must file Form IL-941 to report Illinois income tax withheld each calendar quarter. This form applies only to Illinois income tax withholding and is due by the last day of the month following the calendar quarter.
If you have more than one job or your spouse works, your withholding usually will be more accurate if you claim all of your allowances on the Form IL-W-4 for the highest-paying job and claim zero on all of your other IL-W-4 forms.
In order to be exempt from tax withholding, you must have owed no federal income tax in the prior tax year and you must not expect to owe any federal income tax this tax year.
A single filer with no children should claim a maximum of 1 allowance, while a married couple with one source of income should file a joint return with 2 allowances. You can also claim your children as dependents if you support them financially and they're not past the age of 19.
The IL-W-4 form is fairly straightforward. The employee must enter their name, social security number, street address, city, state, and zip code. They must also indicate the number of allowances they want to claim or are legally allowed to claim.
Withholding Formula (Illinois Effective 2024) Determine the additional allowance by applying the following guideline and subtract this amount from step 3 to compute the taxable income. Multiply the taxable income computed in step 4 times 4.95 percent to determine the amount of Illinois tax withholding.
Illinois withholding income tax payments are made on Form IL-501, Withholding Payment Coupon, and Illinois withholding is reported on Form IL-941, Illinois Withholding Income Tax Return. IMPORTANT: Make sure to use the correct version of Form IL-941 for the liability period you are filing.