# Legal malpractice · Montana — Civil statute of limitations by state and type of claim For Legal malpractice · Montana, limitation period is within 3 years; when the clock starts is after the plaintiff discovers or through the use of reasonable diligence should have discovered the act, error, or omission, whichever occurs last; section is 27-2-206; how the statute describes it is An action against an attorney licensed to practice law in Montana or a paralegal assistant or a legal intern employed by an attorney based upon the person's alleged professional negligent act or for error or omission in the person's practice, verified against its source on 2026-08-25. - **Type of claim:** Legal malpractice _(our reading, not quoted from the source)_ - **State:** Montana _(verified: appears in the quote below)_ - **Limitation period:** within 3 years _(verified: appears in the quote below)_ - **How the statute describes it:** An action against an attorney licensed to practice law in Montana or a paralegal assistant or a legal intern employed by an attorney based upon the person's alleged professional negligent act or for error or omission in the person's practice _(verified: appears in the quote below)_ - **When the clock starts:** after the plaintiff discovers or through the use of reasonable diligence should have discovered the act, error, or omission, whichever occurs last _(verified: appears in the quote below)_ - **Section:** 27-2-206 _(verified: appears in the quote below)_ ## What the source says > 27-2-206. Actions for legal malpractice. An action against an attorney licensed to practice law in Montana or a paralegal assistant or a legal intern employed by an attorney based upon the person's alleged professional negligent act or for error or omission in the person's practice must be commenced within 3 years after the plaintiff discovers or through the use of reasonable diligence should have discovered the act, error, or omission, whichever occurs last, but in no case may the action be commenced after 10 years from the date of the act, error, or omission. ## Source - https://mca.legmt.gov/bills/mca/title_0270/chapter_0020/part_0020/section_0060/0270-0020-0020-0060.html Last verified: 2026-08-25. Review by: 2027-08-25. Part of [Civil statute of limitations by state and type of claim](https://referencesource.org/state-civil-statute-of-limitations/).