Colorado Payroll Tax Filing Requirements
TaxZerone helps employers in Colorado to understand and manage their state payroll tax filing requirements. Learn about the essential forms and their due dates to ensure your business remains in good standing with the state.
Colorado State Tax Filings
Employers in Colorado are required to file the below key form before the deadline to stay compliant with the Colorado Department of Revenue (CDOR).
Employer Payroll tax forms:
Information return:
Colorado Unemployment Tax (SUI)
In Colorado, employers must pay State Unemployment Insurance (SUI) taxes to support workers who lose their jobs through no fault of their own.
| Colorado UI Tax Rates (2025) | |
|---|---|
| Taxable Wage Base | $27,200 |
| Experienced employer rates | 0.64% to 8.68% |
| New employer rate | 1.7% |
UI Tax Form and Due Dates
| Form Name | Due Date |
|---|---|
| Form UITR-1 | Q1: April 30 Q2: July 31 Q3: October 31 Q4: January 31 |
How does TaxZerone help you file?
TaxZerone simplifies your tax filing process by supporting federal forms and providing clear guidance on state payroll filing requirements. We help you stay compliant, avoid penalties, and file accurately with confidence.
Frequently Asked Questions
1. What are the details required to file DE 9 and DE 9C?
You can file Colorado taxes electronically through:
2. Do I need to report new hires in Colorado?
Yes, all employers are required to submit New Hire Reports (Form NHR) within 20 days of hiring or rehiring an employee. This helps the state track employment and enforce child support orders.
3. What happens if I file my Colorado payroll taxes late?
Late filings may result in penalties. Filing on time helps you avoid these additional costs and maintain a good standing with the state.
