Form IL-W-4, titled “Employee’s and Other Payee’s Illinois Withholding Allowance Certificate,” is a document used by employees in Illinois to determine the correct amount of state income tax to be withheld from their wages. This form helps employers calculate the amount of Illinois state tax to deduct based on the number of allowances claimed by the employee. The number of allowances can depend on factors such as marital status, number of dependents, and special circumstances like age or disability. It is important for employees to complete this form accurately to ensure that the correct amount of tax is withheld, avoiding underpayment or overpayment. Additionally, individuals who may be exempt from withholding must declare this status on the form. The form is typically submitted to the employer when beginning employment or when adjustments to withholding are necessary, such as changes in family status or income.
How to File Form IL-W-4?
To file Form IL-W-4 correctly, follow these steps:
- Obtain the Form: Download Form IL-W-4 from the Illinois Department of Revenue website or request it from your employer.
- Complete the Form: Fill out the form with accurate personal information, such as your name, Social Security number, address, and details about your allowances.
- Submit to Your Employer: After filling out the form, submit it to your employer. They will use this information to adjust your Illinois state income tax withholding.
- Update as Needed: If your personal situation changes (e.g., marriage, birth of a child, or change in income), update your Form IL-W-4 by submitting a new one.
How to Complete Form IL-W-4
Now, let’s go through each section of Form IL-W-4 in detail, step by step.
Part 1: Personal Information
- Social Security Number: Enter your nine-digit Social Security number (SSN) in the format XXX-XX-XXXX.
- Name: Write your full legal name as it appears on your tax records.
- Street Address, City, State, ZIP: Provide your current home address.
Part 2: Exemption Status
- Exempt Status: If you are exempt from Illinois income tax withholding, check the box provided. This is applicable if you meet certain conditions, such as having no taxable income, and you must sign and date the form to certify your exempt status. If you claim exemption, skip the other lines and only sign and date the form.
Part 3: Withholding Allowances
In this section, you will determine the number of allowances to claim, based on your personal situation. This directly affects the amount of tax withheld from your paycheck.
- Step 1: Figure Your Basic Personal Allowances
- Line 1: Check the box indicating whether someone else can claim you as a dependent. For example, if you can be claimed as a dependent by someone else (e.g., parents), check this box.
- Line 2: Enter the number of dependents (other than you or your spouse) that you will claim on your tax return. This refers to children or other dependents you plan to claim.
- Line 3: Add Lines 1 and 2. This is the total number of basic personal allowances you’re entitled to claim.
- Line 4: Enter the number of basic personal allowances you choose to claim on the form. This number may not exceed the result from Line 3. You can choose to claim fewer allowances to increase withholding.
- Step 2: Additional Allowances
- Line 5: If you or your spouse are 65 or older or legally blind, check the applicable boxes. These conditions allow you to claim additional allowances.
- Line 6: Enter any amount that you reported on Line 4 of the Deductions Worksheet for federal Form W-4. This is any additional deductions or subtractions you’re claiming.
- Line 7: Divide the amount from Line 6 by 1,000 and round to the nearest whole number. This number is used to calculate additional allowances.
- Line 8: Add Lines 5 and 7. This is the total number of additional allowances you’re entitled to claim.
- Line 9: Enter the number of additional allowances you choose to claim. This number should not exceed the total on Line 8, but you can opt for fewer allowances to have more tax withheld.
Part 4: Additional Withholding
- Line 3: If you want an additional amount withheld from your pay, enter the specific dollar amount here. This is optional but can help avoid underpayment.
Part 5: Signature and Certification
- Signature: Sign your name to certify that the information provided is correct and that you are entitled to claim the allowances.
- Date: Write the date on which you are submitting the form.