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Colorado: workers' comp deadlines

How quickly you must tell your employer about a work injury, and the deadline to file a workers' compensation claim.

Deadline to tell your employer	4 working days, in writing
Deadline to file a claim	2 years from injury
Claim law	C.R.S. § 8-43-103
Deadline for a death claim	2 years after death

Up to 3 years if there is a reasonable excuse; 5 years for some toxic exposures.

General information only, not legal, insurance or financial advice. Not affiliated with any government agency. Exceptions can apply. Confirm with the state agency, the court or a licensed professional in Colorado.

Also for Colorado: Car insurance by state in Colorado · Claim deadlines in Colorado

How we checked this

Claim deadlines come from a law-firm compendium that cites each statute. Notice deadlines were compared across two 50-state tables; where they differed we used the statute. Last checked: November 12, 2026. Laws change; confirm with the state agency or a licensed professional before acting.

Cross-checked sources agree   Checked on official source confirmed on a government, court or legislature site   From a statute-cited table one detailed source   Under review sources disagree; read the note and the law.