Wyoming Statute of Limitations: Filing Deadlines by Case Type

Wyoming sets a 4-year deadline for personal injury claims and a 10-year deadline for written contract disputes under W.S. 1-3-105. Wyoming is one of only two states with no criminal statute of limitations, meaning prosecutors can file charges for any crime at any time.

Understanding filing deadlines is critical for anyone involved in a legal dispute in Wyoming. The statute of limitations sets the maximum amount of time a person has to file a lawsuit or the state has to bring criminal charges. Missing these deadlines almost always means losing the right to pursue a claim or prosecution entirely.

Wyoming law divides these time limits into two main categories: civil statutes of limitations (for lawsuits between private parties) and criminal statutes of limitations (for prosecution of crimes by the state). Each category has different deadlines depending on the type of case.

This guide breaks down every major filing deadline in Wyoming, explains important exceptions, and provides the specific statutory references so you can verify each time limit yourself.

Hurt in Wyoming? If you are still within the deadline above, you can estimate what your injury claim may be worth with our free Wyoming personal injury settlement calculator. It gives an instant range based on your medical costs and Wyoming's fault rule (general information, not legal advice).

Wyoming Civil Statute of Limitations

Wyoming's civil statute of limitations governs how long you have to file a lawsuit in state court. These deadlines are found primarily in Title 1, Chapter 3 of the Wyoming Statutes. Once the applicable deadline passes, the defendant can file a motion to dismiss, and the court will almost certainly grant it.

The clock typically starts on the date the injury or breach occurred. Wyoming does apply a "discovery rule" in certain situations, which is discussed later in this guide.

Personal Injury Claims

Wyoming gives injured persons 4 years from the date of injury to file a personal injury lawsuit. This deadline applies broadly to claims involving car accidents, slip-and-fall injuries, and most other negligence-based claims. Assault and battery are the exception: they carry their own, much shorter 1-year deadline (see below).

The governing statute is W.S. 1-3-105(a)(iv)(C), which covers actions for "an injury to the rights of the plaintiff, not arising on contract and not herein enumerated."

If you suffer an injury but do not immediately realize it, the discovery rule may delay the start of the 4-year clock. However, you bear the burden of proving that you could not have reasonably discovered the injury sooner.

Medical Malpractice

Medical malpractice claims carry a shorter 2-year statute of limitations under W.S. 1-3-107. The clock starts from the date the alleged act of malpractice occurred.

Wyoming provides an important discovery exception. If the malpractice was not reasonably discoverable within those first 2 years, the deadline extends to 2 years from the date of actual discovery. If the discovery occurs during the second year of the standard period, the filing window is extended by an additional 6 months.

W.S. 1-3-107 does not set a separate outer cap beyond this discovery-based framework: the 2-year period can extend up to 2 years from actual discovery (plus the 6-month extension noted above), with no fixed 4-year or other repose limit in the current statute.

For minors, the Wyoming Supreme Court has held that the 2-year deadline violates the Wyoming Constitution when applied to medical malpractice claims of minors. This means that minors generally receive additional time beyond the standard deadline.

Wrongful Death

A wrongful death lawsuit must be filed within 2 years of the date of death under W.S. 1-38-102. This deadline runs from the date of death, not from the date of the underlying injury that caused the death.

Wyoming law allows certain family members, including a surviving spouse, children, or parents, to bring a wrongful death action. If no family member files suit within the first year, the personal representative of the estate may file during the second year.

Property Damage

Claims for damage to personal property, including damage to vehicles, personal belongings, or other tangible items, must be filed within 4 years under W.S. 1-3-105(a)(iv)(B). This covers the "recovery of personal property or for taking, detaining, or injuring personal property."

Fraud

Actions based on fraud carry a 4-year statute of limitations under W.S. 1-3-105(a)(iv)(D). The clock starts when the fraud is discovered or should have been discovered through reasonable diligence, not necessarily when the fraudulent act occurred.

Defamation (Libel and Slander)

Defamation claims carry the shortest civil filing deadline in Wyoming. A lawsuit for libel (written defamation) or slander (spoken defamation) must be filed within 1 year under W.S. 1-3-105(a)(v)(A).

Assault and Battery

Civil claims for assault or battery, not including sexual assault, carry their own 1-year filing deadline under W.S. 1-3-105(a)(v)(B) -- the same short bucket as defamation. This is separate from, and much shorter than, the 4-year deadline that applies to most other personal injury claims, so filing late by relying on the general 4-year period is a real risk.

Trespass

Claims for trespass upon real property must be filed within 4 years under W.S. 1-3-105(a)(iv)(A).

Product Liability

Product liability claims in Wyoming generally follow the standard personal injury deadline of 4 years from the date of injury under W.S. 1-3-105(a)(iv). If the injury was caused by a defective product and was not immediately apparent, the discovery rule may extend the start of the clock.

Contract Disputes

Wyoming provides generous deadlines for contract-related claims, with different time limits depending on the type of contract.

Written contracts carry a 10-year statute of limitations under W.S. 1-3-105(a)(i). This covers any "specialty or any contract, agreement or promise in writing."

Oral contracts carry an 8-year statute of limitations under W.S. 1-3-105(a)(ii)(A). This applies to "a contract not in writing, either express or implied."

Statutory liabilities (claims based on a duty created by state law rather than a private agreement) also carry an 8-year deadline under W.S. 1-3-105(a)(ii)(B).

Debt Collection

An action to collect a debt on account must be filed within 8 years under W.S. 1-3-105(a)(ii). For foreign debts (debts incurred before the debtor became a Wyoming resident), the deadline is 5 years after the debtor establishes residency in Wyoming under W.S. 1-3-105(a)(iii).

Real Property Recovery

An action for the recovery of the title or possession of real property must be brought within 10 years after the cause of action accrues under W.S. 1-3-103. This deadline also establishes the prescriptive period for adverse possession claims in Wyoming.

Federal Statutory Claims

All actions based on a liability created by a federal statute (where no specific limitations period is provided in the federal law) must be filed within 2 years after the cause of action accrues under W.S. 1-3-115.

Claims Against Government Entities

Claims against Wyoming state or local government entities are governed by the Wyoming Governmental Claims Act. This process involves two separate deadlines.

First, a written notice of claim must be presented within 2 years of the alleged tort under W.S. 1-39-113. Then, the actual lawsuit must be filed within 1 year after the notice of claim is filed under W.S. 1-39-114.

For minors aged 7 or younger, the deadline is extended to 2 years after the occurrence or until the child's eighth birthday, whichever period is greater.

Sexual Assault Against Minors (Civil Claims)

Wyoming provides extended filing deadlines for survivors of childhood sexual assault. Under W.S. 1-3-105(b), a civil action based on sexual assault against a minor may be brought within the later of:

• 8 years after the survivor's 18th birthday (effectively until age 26), or
• 3 years after discovery of the abuse or its connection to the harm suffered

This discovery provision means that survivors who do not recognize the connection between the abuse and their injuries until later in life may still have the ability to file a civil claim.

Complete Civil Statute of Limitations Table

Wyoming Criminal Statute of Limitations

Wyoming is one of only two states in the country (along with South Carolina) that has no criminal statute of limitations for any crime. This means prosecutors may bring charges for any felony or misdemeanor at any time, regardless of how many years have passed since the offense occurred.

No Time Limit for Any Crime

Unlike most states, which set different filing deadlines for different categories of crimes, Wyoming treats all criminal offenses the same. There is no distinction between violent crimes, property crimes, white-collar offenses, or minor misdemeanors. Prosecutors have unlimited time to investigate and file charges.

This applies to all categories of criminal offenses in Wyoming, including:

• Murder and manslaughter (no time limit)
• Sexual assault (no time limit)
• Felonies of all classes (no time limit)
• Misdemeanors of all classes (no time limit)

Why Wyoming Has No Criminal Statute of Limitations

Wyoming's approach is unusual. Most states impose time limits on criminal prosecution based on the severity of the crime. The reasoning behind time limits in other states is that evidence deteriorates over time, witnesses become unavailable, and defendants have a right to timely prosecution.

Wyoming takes a different policy position. The state's legislature has determined that the interest in prosecuting all crimes outweighs the concerns about stale evidence, and has chosen not to impose any time restrictions on criminal prosecution.

Complete Criminal Statute of Limitations Table

Tolling and Exceptions in Wyoming

Several situations can pause (toll) or extend the statute of limitations in Wyoming. Understanding these exceptions is important because they can significantly affect civil filing deadlines. Since Wyoming has no criminal statute of limitations, tolling provisions apply only to civil cases.

Minority and Legal Disability

Under W.S. 1-3-114, if the person who has a cause of action is a minor (under 18) or is subject to any other legal disability at the time the claim accrues, the statute of limitations is tolled. The person may bring the action within 3 years after the disability is removed or within the standard limitation period, whichever is greater.

There is an important exception: this tolling provision does not apply to medical malpractice claims (actions arising from error or omission in the rendering of licensed or certified professional or health care services) or to actions for penalties or forfeitures.

Defendant Absence From the State

Under W.S. 1-3-116, if a cause of action accrues against a person when that person is outside of Wyoming, or if the person has absconded or concealed themselves, the statute of limitations does not begin to run until the person comes into the state. The clock is paused for the entire period the defendant remains outside Wyoming or remains concealed.

Discovery Rule

Wyoming courts apply the discovery rule in cases where an injury is not immediately apparent. Under this doctrine, the statute of limitations does not begin to run until the plaintiff knew or should have known about the injury through the exercise of reasonable diligence.

This rule commonly applies in medical malpractice, fraud, toxic exposure, and latent defect cases. The burden of proving delayed discovery falls on the plaintiff.

Real Property and Legal Disability

For actions involving the recovery of real property, W.S. 1-3-104 provides a separate tolling rule. Any person entitled to bring an action for recovery of real property who is under a legal disability when the cause of action accrues may bring the action within 10 years after the disability is removed.

What Happens If You Miss the Deadline

If you fail to file a civil lawsuit before the statute of limitations expires, the defendant can raise it as an affirmative defense and file a motion to dismiss. Wyoming courts consistently enforce these deadlines, and a dismissal on statute of limitations grounds is almost always permanent. The claim is lost forever.

Filing an insurance claim or negotiating with an insurance adjuster does not pause or extend the statute of limitations. The clock continues to run during these activities, so it is important to be aware of deadlines even while settlement discussions are ongoing.

For criminal cases, Wyoming's lack of a statute of limitations means prosecutors never face this issue. Charges may be brought at any time for any crime committed within the state.

Practical Tips for Filing in Wyoming

• Document the date of injury or discovery carefully. The exact start date of the statute of limitations can determine whether your case survives a motion to dismiss.
• Consult a Wyoming attorney early. An attorney can identify which statute of limitations applies to your specific situation and whether any tolling provisions might extend your deadline.
• Do not rely on settlement negotiations to preserve your rights. The statute of limitations runs during negotiations. If settlement talks stall, you may need to file suit to protect your claim.
• Remember the government claims process. If your claim is against a state or local government entity, you must file a notice of claim within 2 years before you can file suit. Missing the notice deadline will bar your lawsuit.
• Keep records of all communications. Documentation of when you discovered an injury or defect can be critical if the discovery rule is at issue.

More Wyoming Laws

• Wyoming Car Accident Laws
• Wyoming Dog Bite Laws
• Wyoming Expungement Laws
• Wyoming Slip and Fall Laws
• Wyoming Workers Compensation Laws