Montanaworkers' comp filing deadline
Written claim must be submitted within 12 months (1 year) of date of accident; insurer may waive for additional 24 months on showing of lack of knowledge of disability, latent injury, or equitable estoppel (§39-71-601)
Talk to a workers' comp attorney in Montana.
Free, confidential consultation. Statute-of-limitations rules have many exceptions — a lawyer can confirm your specific deadline.
Notice to employer
Notice within 30 days of accident; actual knowledge by employer or managing agent equivalent to notice (§39-71-603)
Filing with the state
Written claim must be submitted within 12 months (1 year) of date of accident; insurer may waive for additional 24 months on showing of lack of knowledge of disability, latent injury, or equitable estoppel (§39-71-601)
Compute your Montana deadline
Pick your state, your injury type, and the trigger date. We'll show notice + filing deadlines.
Exceptions and tolling
Statute-of-limitations rules have many exceptions that can extend or pause the clock. The most common in Montana:
Occupational disease — Discovery rule
OD claim period runs from when worker knew or should have known condition was related to employment.
Death claim deadline
Survivors filing for death benefits typically have 1 year from date of death. This calculator does not yet handle death claims; consult a lawyer for those.
Attribution
- Last verified
- May 4, 2026
- Editorial review
- Statute linked to primary source