Companies who pay employees in Colorado should first register with the CO Secretary of State (if not already registered to do business in CO), then register online with the CO Department of Revenue (DOR) and Department of Labor and Employment (DLE) to receive both a Withholding Account Number and an Unemployment Insurance Account Number within 7-10 days.
CO DOR Withholding Account Number: 99999999 (8 digits)
CO DLE Unemployment Insurance Account Number: 999999.99 9 (9 digits)
CO Denver Account Number: 999999999999 (12 digits)
Register for Colorado Electronic Funds Transfer Credit ID
Colorado also requires employers to register for an Electronic Funds Transfer Credit ID in order to electronically deposit payroll taxes. Colorado EFT Credit ID Format: 999... Learn more
Registering for a Denver Tax ID
You can apply for a Denver tax ID online here. You will receive a 10 digit confirmation number after submitting the application. Please note, this is NOT your tax ID. You will s... Learn more
Authorize Zenefits Payroll as Third Party Administrator in Aurora, Colorado
Employers who use Zenefits Payroll to pay employees in the City of Aurora, Colorado, must authorize Zenefits Payroll as a third party administrator (TPA) with the City of Aurora... Learn more
Authorize Zenefits Payroll as Third Party Administrator for Colorado Department of Revenue
Employers who use Zenefits Payroll to pay employees in Colorado must authorize Zenefits Payroll as a third party administrator (TPA) with the Colorado Department of Revenue (DOR... Learn more
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