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Unemployment claims · Colorado

Colorado claim deadlines for employers

In Colorado a request for separation information has to be answered within 7 calendar days from the date printed on the notice. That is the window Unemploy exists to hold: the state decides the claim on whatever it has when it shuts.

The benefit-charge protest window is 60 calendar days from the statement date. That one runs on the quarterly statement; the audit that reads it is free.

Every number on this page is the one in our rules table for Colorado, with the page or statute it was read out of printed beside it. Nothing here is an average across states. If you think a line is wrong, the source is one click away. Tell us and we will fix the row.

The outline is the range across the 49 states the table has sourced. The solid bar is Colorado.

Colorado’s page, with every source

Separation responsefrom the date printed on the notice of claim
7d2d, Alaska15d, Delaware
Benefit-charge protestfrom the date printed on the quarterly statement
60d10d, Hawaii60d, California
Appeal of a determinationfrom the determination date
20d7d, New Jersey45d, Minnesota

The windows

The table carries 4 windows for Colorado. Each is counted from the date named in the last column.

WindowHow longCounted from
Separation response7 calendar daysthe date printed on the notice
Charge protest60 calendar daysthe statement date
Appeal of a determination20 calendar daysthe date the notice was mailed
Fact-finding2 calendar daysthe date printed on the notice

The table carries no wage audit window for Colorado. That is a gap in our table, not a statement that Colorado holds none.

How the window is held

A deadline anybody has to remember is a deadline somebody misses. The Colorado numbers above are not a reference table this site publishes and then forgets: they are the table Unemploy’s AI agents compute from.

An agent computes the due date, never assumes it

An agent puts each notice on the Colorado row above and computes the date from it. Six different things can stop that computation, and each one refuses by name rather than falling back on a default number of days. A guessed deadline renders identically to a real one and puts a countdown on the screen, and the customer finds out it was wrong when the window has already shut.

An agent walks every open window, every thirty minutes

It escalates to you at three days left, at one day left and at two hours left. Inside the last window nothing quiets it, and it clears when the item is filed and not before.

You are the only person in it

An agent classifies the notice and sets the clock. An agent sends the questions to the manager who did the firing. An agent drafts the response from the answers, with the evidence under every sentence. You read it and press send. Nothing else waits on anyone, on either side.

Where each number comes from

One block per window: the number, the state’s own sentence, and anything about the row that is stranger than the number alone suggests.

Separation response

7 calendar days from the date printed on the notice.

“Employers have seven (7) days to respond to the Division's initial information requests.”Responding to UI Claims and Preventing Additional Charges, Colorado Department of Labor and Employment

Note from the rules table

Runs from the Division's request, which arrives by email or SIDES unless the employer holds a non-electronic communications waiver. CDLE cites RCES 7.4.2 and C.R.S. § 8-79-102(5)(a). CDLE does not print the word 'calendar'; treated as calendar days, the shorter reading. A late-but-pre-decision response is still used, but the account is monitored for a pattern of untimeliness, which is the UI Integrity exposure in PRD §13.1.

Source: Responding to UI Claims and Preventing Additional Charges, Colorado Department of Labor and Employment Read 2026-09-02.

Charge protest

60 calendar days from the statement date.

“An employer shall have sixty calendar days after the mailing date or the transmission date as recorded by the division of a quarterly statement of benefits charged to the employer's account in which to file a written application for a review and determination of benefit charges.”Colorado Employment Security Act, C.R.S. § 8-76-102.5, published by the Colorado Department of Labor and Employment

Note from the rules table

Counted from the mailing date OR the transmission date as recorded by the Division, whichever the statement carried, an electronically delivered statement starts the clock on transmission, so the desk must read the delivery mode off the document and not assume mail. If the employer does not act in time the charges are 'deemed correct and final' by statute. Appeal from the redetermination runs under C.R.S. § 8-76-113(2).

Source: Colorado Employment Security Act, C.R.S. § 8-76-102.5, published by the Colorado Department of Labor and Employment Read 2026-09-02.

Appeal of a determination

20 calendar days from the date the notice was mailed.

“We must receive your appeal within 20 calendar days of the date mailed at the top of the Notice of Determination. This includes Saturdays, Sundays, and legal holidays. If the 20th calendar day is a Saturday, Sunday, or legal holiday, the due date becomes the next business day.”Appeals FAQs, Colorado Department of Labor and Employment

Note from the rules table

Counted from the date mailed printed at the TOP of the Notice of Determination, not from any other date on the document. Weekends and legal holidays count; if day 20 lands on one, the due date rolls to the next business day. The postmark does not count, CDLE must RECEIVE it by then, so the desk's own dispatch deadline is earlier than the statutory one.

Source: Appeals FAQs, Colorado Department of Labor and Employment Read 2026-09-02.

Fact-finding

2 calendar days from the date printed on the notice.

“No response is when an employer does not respond to the Division's initial request within the seven (7) days timeframe, and does not respond within two (2) days to any additional requests.”Responding to UI Claims and Preventing Additional Charges, No Response, Colorado Department of Labor and Employment

Note from the rules table

Additional requests after the initial one. Two days is short enough that it cannot be worked as a queue item; it has to page a human on arrival.

Source: Responding to UI Claims and Preventing Additional Charges, No Response, Colorado Department of Labor and Employment Read 2026-09-02.

Relief grounds, in Colorado’s own language

The rules table carries no sourced relief ground for Colorado yet. That is a gap in our table, not a statement that Colorado grants no relief. Unemploy will not cite a ground it cannot show you the source for.

Where it gets filed

MyUI Employer+

State portal. Handles the charge protest and the appeal of a determination.

Source: How to Protest and Appeal Benefits Charges, Rates and Determinations, Colorado Department of Labor and Employment Read 2026-09-02.

State Information Data Exchange System (SIDES)

SIDES E-Response. Handles the separation response and the fact-finding.

Source: Responding to UI Claims and Preventing Additional Charges, Avoiding Additional Employer Charges, Colorado Department of Labor and Employment Read 2026-09-02.

Unemployment Appeals Section

Mail. Handles the appeal of a determination.

Unemployment Appeals Section, PO Box 8988, Denver, CO 80201-8988

Source: Appeals FAQs, Employers, Colorado Department of Labor and Employment Read 2026-09-02.

Unemployment Appeals Section fax

Fax. Handles the appeal of a determination.

303-318-9248

Source: Appeals FAQs, Employers, Colorado Department of Labor and Employment Read 2026-09-02.

Representation at a hearing

We have not sourced the representation rule for Colorado

Nobody has put an authority in this row for Colorado, so we do not know whether a non-attorney may appear for an employer here. Unsourced is not permission: Unemploy does not represent employers at hearings in Colorado, and will not until there is a link in this row. We prepare the packet and route it to an attorney.

NOT sourced for the question that matters. The quoted CDLE sentence is about parties generally, on the claimant-facing Appeals FAQ; it does not address a non-attorney appearing on behalf of a corporate employer. Kept null deliberately, the Source is attached so a human can see exactly what was read and why it was judged insufficient, not as authority to represent. Resolve against the Regulations Concerning Employment Security (RCES) hearing-procedure regulations or a CDLE employer-facing hearing page.

Source: Appeals FAQs, Do I need an attorney?, Colorado Department of Labor and Employment Read 2026-09-02.

Notes on the Colorado row

What the person who sourced this row wanted the next reader to know, verbatim.

reliefGrounds is EMPTY and that is a gap, not a finding. Colorado plainly has non-charging grounds; C.R.S. § 8-76-103 (the old experience-rating section) is repealed and the surviving grounds were not located in the Colorado Employment Security Act text on 2026-09-02. Until a human sources them, the ground guard (ENGINEERING-SPEC §6.4) refuses every ground in Colorado, so a Colorado protest cannot be drafted with a cited ground. Do not paper over this by borrowing another state's grounds.

The 60-day charge-protest window and the 20-day RATE-protest window are different things and get confused constantly. The rate protest is 'typically 20 calendar days after the date listed on the Rate Notice', must be filed online, and cannot challenge the legislatively-mandated Support Rate or Solvency Surcharge. It is not modelled here because it is a tax-rate matter, not a benefit charge.

Every source behind this page

8 documents, each one fetched and read on the date beside it. No number on this page comes from anywhere else.

The Colorado row describes the rules in effect from 2026-09-02, and every row in the table was last read against its sources on 2026-09-02. Every populated field on this row traces to a primary source: the agency's own page, the statute, or the state's own employer handbook. Unemploy is not a law firm and this page is not legal advice.