Wyoming Statute of Limitations by Case Type

Wyoming's statutes of limitations establish fixed deadlines by which a civil lawsuit or criminal charge must be filed. These deadlines vary significantly by case type — ranging from 1 year for certain defamation claims to no deadline at all for first-degree murder — and missing one forfeits the right to pursue the claim regardless of its merits. This page covers the principal limitation periods codified under Wyoming Statutes Title 1 (Civil Procedure) and Title 7 (Criminal Procedure), the mechanisms that start, pause, or extend those deadlines, and the boundaries of Wyoming state jurisdiction over these rules.

Definition and scope

A statute of limitations is a legislatively enacted time limit within which a legal action must be commenced. In Wyoming, these deadlines are codified primarily in Wyoming Statutes Title 1, Chapter 3 (Actions — Time Limitations) for civil matters and in Wyoming Statutes Title 7 for criminal prosecutions. The limitation period begins running — "accrues" — at a defined triggering event, typically the moment the injury occurs, the contract is breached, or the crime is committed.

Scope and coverage of this page: This page covers limitation periods applicable in Wyoming state courts under Wyoming statutes. It does not address limitation periods that apply in federal courts in Wyoming, tribal court proceedings (see Wyoming Tribal Courts and Sovereignty), or the laws of other states. Claims that cross state lines may implicate conflict-of-law analysis outside this reference's scope. Federal civil rights claims filed under 42 U.S.C. § 1983, for example, borrow the state personal injury limitation period but are governed by federal accrual rules as interpreted by the U.S. Supreme Court — a layer not fully addressed here.

For a broader orientation to how Wyoming courts are organized and how procedural rules function, see How the Wyoming Legal System Works and the Wyoming Legal System Terminology and Definitions reference.

How it works

The statute of limitations operates as an affirmative defense: if a defendant raises it and the court agrees the deadline has passed, the case is dismissed. Three concepts govern how these deadlines run.

1. Accrual — when the clock starts
The default rule is that a claim accrues when the injury or breach occurs. Wyoming courts apply a "discovery rule" in specific categories — notably medical malpractice and fraud — where the period does not begin until the plaintiff discovers, or reasonably should have discovered, the injury (Wyo. Stat. § 1-3-107 for medical claims).

2. Tolling — pausing the clock
Wyoming law recognizes several tolling circumstances that suspend the running of the limitation period:

1. Minority — the period is tolled while the plaintiff is under 18 years of age (Wyo. Stat. § 1-3-114).
2. Mental incapacity — tolled while the plaintiff is of unsound mind.
3. Fraudulent concealment — where a defendant actively hides the cause of action.
4. Absence of defendant from state — time spent outside Wyoming by the defendant may not count against the plaintiff.
5. Statutory exceptions for minors in sexual abuse cases — Wyoming enacted specific extended windows under Wyo. Stat. § 1-3-105(b).

3. Relation back
Under the Wyoming Rules of Civil Procedure, an amended pleading that adds a claim or party can "relate back" to the date of the original filing if it arises from the same transaction or occurrence, effectively avoiding a limitations bar that would otherwise apply to the amended filing.

Common scenarios

The following structured breakdown lists the primary Wyoming limitation periods by case category, drawn from Title 1, Chapter 3 of the Wyoming Statutes:

Criminal statutes of limitations differ structurally. Under Wyo. Stat. § 7-2-101, Wyoming imposes no limitation period on felonies of the first degree, including murder. For most misdemeanors, the limitation is 2 years. Felonies below the first degree carry a 5-year period. Sexual assault crimes involving minors carry extended or eliminated limitation periods under amendments enacted through the Wyoming Legislature. For criminal procedure context, the Wyoming Rules of Criminal Procedure and the Wyoming Criminal Law Framework pages provide procedural detail.

Contrast: contract vs. tort claims
A single event — a contractor's defective work, for example — can give rise to both a breach of contract claim (8-year period under Wyo. Stat. § 1-3-105) and a negligence/property damage claim (4-year period under Wyo. Stat. § 1-3-106). The applicable period depends on which legal theory the plaintiff pursues, not just the underlying facts.

Workers' compensation claims operate on a separate administrative timeline governed by the Wyoming Workers' Compensation Legal Framework and the Wyoming Department of Workforce Services rather than the general civil limitation statutes.

Decision boundaries

Applying the correct limitation period requires resolving several threshold questions. The Regulatory Context for the Wyoming Legal System page addresses the broader statutory environment within which these rules operate.

Key decision points:

1. Is the claim civil or criminal? Criminal prosecution deadlines are governed by Wyo. Stat. § 7-2-101, not the civil Title 1 framework.
2. Does a specific statute displace the general rule? Medical and legal malpractice, defamation, and fraud each have dedicated provisions that override the catch-all 4-year period.
3. Does the discovery rule apply? Only certain enumerated claim types — fraud, malpractice — trigger discovery-based accrual under Wyoming law. General personal injury claims accrue at injury, not discovery.
4. Is any tolling circumstance present? Minority, mental incapacity, defendant absence, or fraudulent concealment must each be assessed independently before concluding a deadline has expired.
5. Does a claim implicate a government entity? Claims against Wyoming state agencies or subdivisions require compliance with the Wyoming Governmental Claims Act (Wyo. Stat. §§ 1-39-101 through 1-39-120), which imposes a separate 2-year deadline and a mandatory notice of claim requirement before suit can be filed. This is a distinct procedural layer that runs parallel to, not instead of, the general limitation framework.
6. Has the claim already been reduced to judgment? Wyoming's enforcement statute (Wyo. Stat. § 1-3-110) provides a separate 5-year window to enforce a judgment, renewable by reviving the judgment before expiration.

The Wyoming Civil Law Framework and the comprehensive Wyoming Statute of Limitations Reference provide supplemental classification detail for practitioners and researchers cross-referencing specific claim types. For filings within these deadlines, procedural requirements are addressed at Wyoming Court Filing Procedures and Fees.

An overview of the full Wyoming legal reference structure is accessible at the site index.

References

• Wyoming Statutes Title 1, Chapter 3 — Actions: Time Limitations (Justia)
• Wyoming Statutes Title 7 — Criminal Procedure (Justia)
• [Wyoming Statutes § 1-3-107 — Medical and Professional Malpractice (Justia)](https