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Colorado State Payroll Tax Filing:
New Hire Reporting, Withholding Forms DR 1094 & DR 1093, and Unemployment Forms UITR-1 & UITR-1A
Stay compliant with Colorado payroll taxes. Understand filing requirements, meet deadlines, and stay compliant with ease.
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Navigating Colorado Payroll Taxes
Colorado employers must comply with several state payroll tax requirements, including New Hire Reporting, state income tax withholding, and unemployment insurance (UI) reporting. These obligations are administered by the Colorado Department of Revenue (CDOR) and the Colorado Department of Labor and Employment (CDLE) and apply to most employers with workers in the state.
This guide provides a comprehensive overview of Colorado payroll tax filing requirements, covering New Hire Reporting, withholding Forms DR 1094 and DR 1093, and unemployment insurance forms UITR-1 and UITR-1A, along with filing deadlines, reporting methods, and compliance considerations to help employers stay up to date and avoid penalties.
Colorado New Hire Reporting
New Hire Reporting is a mandatory legal requirement for all employers in Colorado to report newly hired and rehired employees to the Colorado State Directory of New Hires. This reporting supports child support enforcement, reduces unemployment and public assistance fraud, and helps locate non-custodial parents to establish child support orders.
Who must report
All employers doing business in Colorado must report new hires. This includes:
- Private businesses of all sizes
- Employers of part-time and seasonal workers
-
Temporary agencies — responsible for reporting employees they hire directly
Independent Contractors (Effective July 1, 2021): Colorado employers must also report independent contractors for whom they are required to report compensation to the IRS. This includes self-employed individuals and contracted employees meeting the IRS reporting threshold.
What to report
When reporting a new hire in Colorado, the employer must provide:
- Employer Information: FEIN, employer name, and address
-
Employee Information: Full name, address, Social Security Number (SSN), and date of hire
The federal Form W-4 or state equivalent form may be submitted as the new hire report.
When to report
Employers must report newly hired or rehired employees within 20 calendar days of the date of hire, or by the first regularly scheduled payroll following the date of hire if that payroll falls after the 20-day period. Electronic filers must submit two monthly transmissions no more than 16 days apart.
How to report
1. Online — Electronic Reporting (Recommended):
- Report new hires through the Colorado New Hire Reporting Center available 24 hours a day, 7 days a week.
- Provides printable confirmation of every report submitted.
- File transfer also available for bulk reporting
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2. By Fax or Mail:
- Submit a completed federal Form W-4 or state equivalent with employer name, FEIN, address, and date of hire noted
- Fax: (303) 297-2595
-
Mail:
Colorado State Directory of New Hires
PO Box 2920
Denver, CO 80201-2920
New Hire Reporting Penalties
Failure to timely report new hires: Colorado does not impose a specific state penalty for late new hire reporting. However, failure to report may result in non-compliance notices from the Colorado Department of Labor and Employment.
Worker misclassification: Employers who misclassify employees as independent contractors Temporary agencies — responsible for reporting employees they hire directly
significant penalties under Colorado law — $5,000 per employee for a first willful violation and up to $50,000 per employee for repeat violations (effective 2025, increasing for inflation from January 1, 2028).
Corrections
If you discover an error on a previously submitted new hire report, corrections should be made as soon as possible through the Colorado New Hire Reporting Center. For assistance, contact the Colorado New Hire Reporting Center directly:
- Phone: (303) 297-2849 or toll-free (800) 696-1468
-
Fax: (303) 297-2595
- Hours: Monday through Friday, 8:00 AM to 5:00 PM MT
Colorado Wage Withholding Tax (DR 1094 and DR 1093)
Colorado employers must ensure proper filing of withholding forms to remain compliant with state payroll tax requirements. The purpose of withholding forms is to report the amount of state income tax deducted from employees' wages and to ensure timely remittance of these taxes to the Colorado Department of Revenue (CDOR).
January 2026 Update: The Colorado Wage Withholding Tax Guide was revised in January 2026. Overtime compensation that may be exempted from federal withholding under the One Big Beautiful Bill Act is still subject to Colorado wage withholding. The 2026 interest rate is 8% discounted / 11% regular.
Who Must File
All employers in Colorado, regardless of business size, must file withholding forms if they pay wages to:
- A Colorado resident employee, whether working inside or outside of Colorado
- A nonresident employee performing services in Colorado
This includes businesses, nonprofit organizations, and government agencies. Even if no tax is withheld for a period, monthly and quarterly filers must still file a return for that period.
Form Types
DR 1094 — Colorado W-2 Wage Withholding Tax Return
- Reports and remits withholding for each filing period
- Filed by all wage withholding employers
DR 1093 — Annual Transmittal of State W-2 Forms
- Year-end reconciliation or to claim an overpayment refund
- Filed by all employers submitting paper W-2s or claiming a refund
What to Report
- Employer information (name, address, FEIN)
- Total wages paid during the filing period
- Total Colorado income tax withheld from employees
- Any adjustments for prior overpayments or underpayments
Withholding Certificates
On or before an employee's first day of employment, the employer must have the employee complete a federal IRS Form W-4. Employees may also optionally complete Colorado Form DR 0004 to adjust state withholding separately from
federal withholding.
Important: If an employee earning more than $200 per week claims exemption from withholding on their W-4 and does not submit a DR 0004, the employer must promptly send a copy of that W-4 to:
When to File
Filing frequency is assigned based on total annual Colorado withholding liability and is reassessed each January 1.
| Filing Frequency | Annual Withholding | Filing Period | Due Date |
|---|---|---|---|
| Quarterly | Less than $7,000 | Each calendar quarter | Last day of the month following quarter close |
| Monthly | $7,000 to $50,000 | Each calendar month | 15th of the following month |
| Weekly | $50,000 or more | Each week (Saturday through Friday) | 3rd business day after the Friday ending the week |
Zero tax periods: Monthly and quarterly filers must file a return even if no tax is due. Failure to file a zero return will result in non-filer billing notices.
Weekly year-end period: The final weekly filing period always ends December 31, regardless of what day of the week it falls on. Payment is due the 3rd business day after December 31.
How to File
1. Online via Revenue Online — Recommended for all others:
- File and pay at Colorado.gov/RevenueOnline.
- A third-party processing fee applies for e-check or credit card payments.
- Bulk filers may upload wage data via CSV or text file format.
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2. Electronic Funds Transfer (EFT) — Required for weekly filers:
-
Weekly filers must remit via EFT. No paper option available.Remit payment at
tax.colorado.gov/remit-withholding-tax - EFT payments satisfy both payment and filing requirements. No separate return needed
3. By Mail — Non-EFT filers only:
- Complete and mail Form DR 1094 with a check or money order.
- Must be postmarked on or before the applicable due date.
-
Mail to:
Colorado Department of Revenue
Denver, CO 80261-0009
Tax Payments
Accepted payment methods:
- EFT (ACH): Required for weekly filers. Free of charge.
- Online via Revenue Online: E-check or credit card. Third-party processing fee applies.
-
Check or money order: Mail with Form DR 1094, postmarked by the due date.
Do not combine withholding tax payments with any other tax type. Each tax type requires a separate payment.
| Penalty Type | Rate / Amount | When Incurred |
|---|---|---|
| Failure to File (DR 1094) | Department estimates tax due and issues a notice of deficiency | Return not filed by due date |
| Failure to File W-2s (DR 1093) | $5 to $50 per W-2 at the department's discretion | W-2s not filed by January 31 |
| Late Payment | Greater of $5 or 5% of unpaid tax, plus 0.5% per month up to 12% total | Payment not received by the due date |
| Failure to Pay After Notice | Additional 15% collection penalty | Payment not remitted within the time provided in the notice and demand |
| Interest | 8% discounted / 11% regular (2026 rates) | Accrues on the unpaid balance from the original due date until paid in full |
2026 Interest Rates:
- Discounted rate (paid within 30 days of deficiency notice): 8%
- Regular rate: 11%
Corrections
Underpayment: Report and pay additional tax via EFT, Revenue Online, or by filing a second DR 1094. Do not include previously reported amounts on the corrected return.
Overpayment: Deduct from the next filing period within the same calendar year. If the year has ended, claim a refund on Form DR 1093 by January 31. After January 31, file Form DR 0137 (Claim for Refund).
Corrected W-2s: File IRS Form W-2c with both the employee and the Department, generally by January 31. Mail corrected
W-2s to:
Colorado Department of Revenue
Discovery Section
PO Box 17087
Denver, CO 80217-0087
Contact:
- Phone: (303) 205-8292 — Monday through Friday, 8:00 AM to 5:00 PM MT
- Email: DOR_TaxpayerService@state.co.us
- Online: Colorado.gov/RevenueOnline
Colorado Unemployment Insurance (UITR-1 and UITR-1A)
Colorado Department of Labor and Employment (CDLE) Division of Unemployment Insurance. These premiums fund UI benefit payments to eligible workers who lose their jobs through no fault of their own.
The chargeable wage base increased to $30,600 per employee, up from $27,200 in 2025. The solvency surcharge remains in effect for 2026.
Who Must File
Most employers are required to pay UI premiums if they meet either of the following criteria:
- Paid wages of $1,500 or more in any calendar quarter during the current or previous calendar year
- Employed at least one person for any part of a day in 20 or more weeks during the current or previous calendar year
Form Types
UITR-1 — Unemployment Insurance Tax Report
- The main quarterly UI tax return
- Reports total gross wages, taxable wages, excess wages, and total premiums due
UITR-1A — Unemployment Insurance Report of Workers' Wages
- Companion wage detail form submitted alongside UITR-1
- Reports individual employee wages for the quarter
-
A PC printout in an approved format is accepted in place of the paper form
Electronic filing through MyUI Employer+ replaces both UITR-1 and UITR-1A for the vast majority of employers. Paper forms are only permitted for employers who have been granted a non-electronic communications waiver by CDLE.
What to Report
Each quarter, employers must report the following information:
Employee Wage Information:
- Total gross wages paid during the quarter
- Taxable wages subject to UI premiums
- Excess wages above the annual wage base
Employer Information:
- Colorado Employer Account Number
- Federal Employer Identification Number (FEIN)
- Business name and reporting period
Employment Data
- Total number of covered employees
- Monthly employment counts
2026 Premium Rates
Colorado UI premiums consist of three components: Standard Rate, Support Surcharge, and Solvency Surcharge — added together to form the combined rate.
2026 New Employer Introductory Rates:
| Business Classification | Combined Rate |
|---|---|
| Non-construction | 3.05% |
| General Construction | 3.05% |
| Heavy Construction | 6.285% |
| Trades | 3.05% |
| Political Subdivision Group | 0.20% |
Experienced employers receive a computed rate based on total lifetime premiums paid, total lifetime benefits charged, and average annual payroll. Employers receive an annual Rate Notice by mail each December.
Chargeable Wage Base
| Year | Wage Base Per Employee |
|---|---|
| 2026 | $30,600 |
| 2025 | $27,200 |
| 2024 | $23,800 |
Premiums are only due on wages up to the chargeable wage base per employee per calendar year.
When to File
Quarterly wage detail reports and premium payments are due on the last day of the month following the end of each quarter.
| Quarter | Period | Due Date |
|---|---|---|
| Q1 | January, February, March | April 30 |
| Q2 | April, May, June | July 31 |
| Q3 | July, August, September | October 31 |
| Q2 | October, November, December | January 31 |
If the due date falls on a Saturday, Sunday, or legal holiday, the report and payment are considered timely if received electronically or postmarked on the next business day.
How to File
Electronic filing is required for all employers through MyUI Employer+.
1. Online — Required for all employers:
- File quarterly wage detail reports and pay premiums at MyUI Employer+.
- Supports manual entry, copy from previous quarter, and file upload options.
- Must include monthly employment data for each employee.
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2. By Mail — Non-electronic waiver holders only:
- Submit paper UITR-1 and UITR-1A forms
- Only permitted for employers granted a non-electronic communications waiver by CDLE
- TPAs are not eligible for waivers and must file electronically
-
Mail to:
Colorado Department of Labor and Employment
P.O. Box 956
Denver, CO 80201-0956
Tax Payments
Accepted payment methods:
- ACH Debit: Pay directly through MyUI Employer+. Recommended for fastest and most accurate processing.
- ACH Credit: Submit through MyUI Employer+ using your bank's ACH credit service.
-
Paper Check: Include a printed payment voucher generated in MyUI Employer+. Mail at least 5 days before the
due date to:
Colorado Department of Labor and Employment
P.O. Box 956
Denver, CO 80201-0956
Make checks payable to the Colorado State Treasurer. Include your Employer Account Number (EAN) on the front of the check.
Colorado Unemployment Insurance Penalties
Employers must file wage reports and pay premiums on time. Failure to meet deadlines results in penalties and interest assessed by the CDLE Division of Unemployment Insurance.
| Penalty Type | Rate / Amount | When Incurred |
|---|---|---|
| Delinquent wage report | $50 per quarter (or $10 per quarter for new employers in the first 4 quarters) | Quarterly UI report not filed by the due date |
| Delinquent premium penalty | Equal to past-due premiums or 1% of taxable payroll, whichever is less | Premiums past due as of June 30 annual computation date |
| Interest | 1.5% per month on past-due premiums and penalties | Accrues from the original due date until paid in full |
Corrections
Adjustments to previously filed wage reports can be submitted directly in MyUI Employer+. Do not adjust prior quarter errors on the current quarter report. Contact CDLE UI Employer Services for adjustment forms if filing by paper.
Contact
- Denver Metro: (303) 318-9100
- Toll-free: 1-800-480-8299
-
Mail:
UI Employer Services
P.O. Box 8789
Denver, CO 80201-8789 - Online: MyUI Employer+
Colorado Payroll Tax Filing — Simple, Transparent Pricing
TaxBandits offers clear, flat-rate pricing for Colorado payroll forms, ensuring fast, accurate, and affordable e-filing.
| Forms | Pricing* |
|---|---|
| New Hire Reporting | $1 / Employee |
| Withholding Form (DR 1094, DR 1093) | $5.95 |
| Unemployment Wage Report (UITR-1 & UITR-1A) | $5.95 |
*No hidden fees. No subscriptions. Pay only for what you file.
Let TaxBandits Make Your Colorado Payroll
Filing Easy
We offer a comprehensive solution to meet all your state payroll compliance needs.
- New Hire Reporting
- Forms DR 1094 & DR 1093
- Forms UITR-1 & UITR-1A
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Frequently Asked Questions
Do Colorado employers have to report independent contractors as new hires?
Yes — effective July 1, 2021, Colorado employers must report independent contractors for whom they are required to report compensation to the IRS. They are reported the same way as regular employees: through the Colorado New Hire Reporting Center online, by fax to (303) 297-2595, or by mail to Colorado State Directory of New Hires, PO Box 2920, Denver, CO 80201-2920.
How long do Colorado employers have to report a new hire?
Employers must report within 20 calendar days of the hire date. If the first regularly scheduled payroll after the hire date falls later than 20 days, that payroll date becomes the deadline. Electronic filers must submit two monthly transmissions no more than 16 days apart. Rehired employees must also be reported within the same 20-day window.
What are the penalties for late or missing new hire reports in Colorado?
Missing the deadline results in a $25 fine per omitted report. If an employer and employee conspire to avoid reporting, the penalty rises to $500 per violation. Separately, misclassifying an employee as an independent contractor to avoid reporting carries a $5,000 penalty per worker for a first willful violation and up to $50,000 per worker for repeat violations.
Which employers are required to withhold Colorado state income tax?
Any employer who pays wages to a Colorado resident — whether they work inside or outside Colorado — or to a nonresident employee performing services in Colorado must withhold state income tax. This applies to businesses, nonprofits, and government agencies of all sizes. Even if no tax is withheld in a given period, monthly and quarterly filers must still submit a zero return, or they will receive a non-filer billing notice.
How do I pay Colorado wage withholding tax and when is it due?
Payment frequency is based on your annual withholding liability. Under $7,000 per year — pay quarterly, due the last day of the month after each quarter. Between $7,000 and $50,000 — pay monthly, due the 15th of the following month. $50,000 or more — pay weekly via EFT only, due the 3rd business day after each Friday. Pay online at Colorado.gov/RevenueOnline or via EFT at tax.colorado.gov/remit-withholding-tax.
How do I correct an overpayment or underpayment on a Colorado withholding return?
For underpayments, pay the additional tax via EFT, Revenue Online, or by filing a second DR 1094 — do not include previously reported amounts on the corrected return. For overpayments within the same calendar year, deduct the excess from your next filing. If the year has ended, claim a refund on Form DR 1093 by January 31. After January 31, file Form DR 0137. For help, call (303) 205-8292, Monday through Friday, 8 AM to 5 PM MT.
Do I have to file a Colorado UI report if I paid no wages this quarter?
Yes. All Colorado employers with an active UI account must file through MyUI Employer+ every quarter, even if no wages were paid and no premiums are owed. Failing to file results in a penalty of $50 per quarter, or $10 per quarter for new employers in their first four quarters. Do not skip a quarter assuming a zero return is
not needed.
What is the Colorado UI wage base and how are employer rates set for 2026?
For 2026, UI premiums apply only to the first $30,600 in wages per employee per year — up from $27,200 in 2025. New employers pay 3.05% for most industries or 6.285% for heavy construction. Experienced employers receive a computed rate each December based on their lifetime premiums paid and unemployment benefits charged to their account. The solvency surcharge remains in effect for 2026.
Does paying Colorado UI on time lower my federal unemployment tax bill?
Yes. Employers who file and pay Colorado UI premiums on time qualify for up to a 5.4% FUTA credit, dropping the federal rate from 6.0% to just 0.6% on the first $7,000 of wages per employee per year. Late payments or unfiled returns can reduce or eliminate this credit entirely — turning a state compliance issue into a much larger federal tax bill.
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