The payer ID for Form TC-40W is the state employer ID found on your W-2, Box 15.
It is important to note that the Utah TC W40(1) payer ID must be a 14 character number. The first eleven characters are numeric and the last three are “WTH.” Please do not include hyphens.
Example: 12345678901WTH.
Utah will NOT accept any other version for the Payer ID.
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