Colorado
The state of Colorado requires both a Withholding Tax ID and a State Unemployment Tax ID, both formats and links to apply are below.
Withholding Tax ID
Link to Apply: https://tax.colorado.gov/withholding-tax
Agency Contact Info: Department of Revenue State Capitol Annex 1375 Sherman Street Denver, CO 80261 303-238-7378
Format: ########
Applied For: Accepted
Unemployment Tax ID
Link to Apply: https://cdle.colorado.gov/employers/myui-employer
Agency Contact Info: Department of Labor and Employment Division of Employment and Training U.I. Tax - 251 E. 12th Avenue Denver, CO 80203 303-318-9100 (Denver - metro area) 800-480-8299 (outside Denver - metro area)
Format: ######.##-#
Applied For: Not Accepted
Locals
AURORA, DENVER, GLENDALE, GREENWOOD VLG, SHERIDAN
After a new tax ID has been received, please send all documentation showing proof of the tax ID obtained to the Tax Department by submitting a Tax Ticket. Choose "Need to Add Tax Jurisdiction/Obtained Tax ID" from the ticket reason drop down. It's best practice to add new tax ID's before processing payment for employees within the jurisdiction.
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