If you're trying to reach Colorado's unemployment agency by phone, you're looking for Colorado Department of Labor and Employment (CDLE), specifically its Unemployment Insurance (UI) division. Here's what you need to know about contacting them, when phone support actually helps, and what to have ready before you call.
The primary phone number for Colorado unemployment insurance claimants is:
📞 303-318-9000 (Denver metro area and outside Colorado) 📞 1-800-388-5515 (toll-free for claimants within Colorado)
These lines connect you to the MyUI+ claimant support system, which handles questions about filing claims, weekly certifications, payment status, identity verification, and adjudication issues.
Hours of operation change periodically, so confirm current availability directly through the CDLE website before calling. Phone availability has historically been limited during high-volume periods — mornings early in the week tend to be busiest.
CDLE has invested in its MyUI+ online portal, and many tasks don't require a phone call at all. Understanding the difference saves time.
Handle online through MyUI+:
More likely to require a phone call:
If your issue involves a pending adjudication — meaning CDLE is still reviewing a question about your eligibility — a phone call often won't resolve it faster. Those reviews have their own timelines and are typically handled by adjudicators separately from the general call center.
Employers contesting claims or managing tax accounts use a different line. The employer services contact is separate from claimant services, and the CDLE website maintains current routing information for each.
Colorado's phone system, like most state UI systems, will ask you to verify your identity before connecting you with an agent or accessing your account information. Have the following ready:
If you're calling about a specific letter or notice, have the letter in front of you. Reference numbers and issue dates help agents locate your claim faster.
A phone agent can pull up your account and explain what's showing on their end. What they generally can't do is override an adjudication decision, change a determination, or tell you whether you'll qualify. Those outcomes depend on factors that go well beyond what a call center representative controls.
Eligibility in Colorado is shaped by:
| Factor | What It Affects |
|---|---|
| Base period wages | Whether you meet Colorado's minimum earnings threshold to qualify |
| Reason for separation | Whether you're eligible at all — layoff, quit, or discharge each triggers different rules |
| Employer response | Whether your former employer contests the claim and on what grounds |
| Availability and work search | Whether you're meeting ongoing requirements while collecting |
| Identity verification | Whether your claim is released for payment pending ID confirmation |
Benefit amounts are calculated based on your wages during the base period — generally the first four of the last five completed calendar quarters before you filed. Colorado uses a formula that produces a weekly benefit amount (WBA), subject to a state-set maximum. That maximum changes periodically, so current figures should be confirmed through CDLE directly.
Colorado's phone lines have experienced high volume during periods of economic disruption. If you're unable to reach an agent, a few alternatives exist:
If your claim involves a formal determination or denial, the relevant next step is the appeal process, not a phone call. Colorado's appeal rights are described in every determination letter, including the deadline to file — typically 20 calendar days from the mailing date of the determination, though you should confirm that deadline from your actual letter, as it controls your rights.
No phone agent can tell you whether your specific claim will be approved, what your weekly benefit amount will ultimately be, or whether an appeal is worth filing. Those questions depend on the full picture of your work history, your separation circumstances, how your employer responds, and how Colorado's UI rules apply to your specific situation — none of which a general support line is equipped to assess.
The phone number gets you into the system. What happens next depends on the details of your claim.