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This number is associated only with the state that issues it. State tax ID numbers are issued by the department of revenue or similar agency in the state where the business is located. Is there a difference between state and federal EIN? The EIN is a nine-digit number that follows the format XX-XXXXXXX and usually can be seen in the top right corner of the business tax return paper. To find the employer’s state ID number, Employer Identification Number (EIN), you need to check your W-2 form or check your weekly paystub or business tax return paper. How do I find my state employer identification number?
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