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Find your Delaware tax account info

Set up an existing company

If you've run payroll in Delaware in the past, you can find your account number on notices received from the Delaware Division of Revenue, such as the Withholding Tax Return (Form W1), or by calling the agency at (302) 577-8779.

Businesses that have run payroll in Delaware in the past can find their account number on any notice received from the the Department of Labor such as the Quarterly Tax Report or Notice of Assessment Rate. You can also call the agency at (302) 761-8482 to obtain your number.

UI Earned Rate: The DE Unemployment Insurance (UI) Earned Rate appears on the Form UC-12 that you receive from the Delaware Dept. of Labor. Click here to view state-by-state UI rates and wage bases. If you’re unsure, verify your rate by calling the agency at (302) 761-8484. 

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