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What should I attach to my IL-1040 if I cannot obtain copies of my W-2 forms?
- your name,
- your Social Security number,
- tax year,
- amount of Illinois Income Tax withheld, and
- total wages.
If you are unable to obtain copies of your W-2 forms you may fill out Form IL-4852, Substitute for Unobtainable Form W-2, and attach it to your tax return. You must also attach proof of wages and withholding, such as copies of check stubs or a letter from your employer.
Your check stubs or letter should include the following information:
We will accept a copy of your properly completed federal Form 4852, along with any required attachments, as proof of your Illinois Income Tax withheld from your wages.