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What is payer state code for Illinois?

What is the State Identification number for Illinois?
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LenaH
Employee Tax Expert

What is payer state code for Illinois?

For Illinois income tax retunds -  #37-6002057.  P.O. Box 19044, Springfield, IL  62794-9044

 

For Illinois Department of Employment Security - #36-3042127.  P.O. Box 802551, Chicago, IL  60680-2551

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