Connecticut Statute of Limitations: Deadlines for Civil and Criminal Cases

Connecticut's statute of limitations framework sets legally enforceable deadlines for initiating civil lawsuits and criminal prosecutions. These deadlines vary by claim type, range from one year to no limit at all, and carry consequences — including permanent dismissal — when missed. This page maps the core statutes, mechanics, and classification boundaries that define when a legal action must be filed under Connecticut law.

• Definition and scope
• Core mechanics or structure
• Causal relationships or drivers
• Classification boundaries
• Tradeoffs and tensions
• Common misconceptions
• Checklist or steps (non-advisory)
• Reference table or matrix

Definition and scope

A statute of limitations is a legislatively enacted time boundary within which a legal proceeding must be commenced. In Connecticut, these deadlines are codified primarily in Title 52 of the Connecticut General Statutes (civil actions) and Title 54 (criminal procedure). The Connecticut General Assembly establishes these deadlines, and the Connecticut Judicial Branch administers their procedural application through the Connecticut Practice Book and Superior Court rules.

Statutes of limitations serve two recognized functions in Connecticut jurisprudence: protecting defendants from stale claims where evidence and witnesses become unreliable over time, and promoting judicial efficiency by bounding the pool of actionable disputes. The Connecticut Supreme Court has repeatedly treated these deadlines as substantive rights, not mere procedural technicalities, meaning a late filing does not simply invite a motion — it extinguishes the cause of action entirely.

Scope and coverage: This page addresses civil and criminal statutes of limitations governed by Connecticut state law. Federal claims filed in U.S. District Court for the District of Connecticut are subject to separate federal statutes and are not covered here. Claims governed by tribal jurisdiction, such as those involving the Mashantucket Pequot or Mohegan tribes, fall under distinct sovereign authority and are not addressed on this page. Matters of Connecticut administrative law enforcement timelines are addressed separately through the regulatory context for Connecticut's legal system.

Core mechanics or structure

The limitations period begins running on the date the cause of action "accrues." Accrual is the central mechanical concept: under Connecticut law, accrual typically occurs when the plaintiff suffers a legal injury, not when the plaintiff discovers it — unless a specific statute provides otherwise. Connecticut General Statutes § 52-577 establishes the general tort limitations period at 3 years from the date of the act or omission complained of, anchoring the clock to the defendant's conduct rather than the plaintiff's awareness.

Connecticut courts distinguish between two accrual standards that operate concurrently in certain claim categories:

• Injury-in-fact accrual: The clock starts when harm occurs, regardless of discovery. Standard for most intentional tort and property damage claims.
• Discovery rule accrual: The clock starts when the plaintiff knew or reasonably should have known of the injury. Codified for specific claim types, including products liability under CGS § 52-577a, which sets a 3-year discovery-based period subject to a 10-year statute of repose from the date the product was first sold.

For criminal prosecutions, the limitations period is computed from the date of the offense. Under CGS § 54-193, felonies carrying a penalty of death or life imprisonment carry no statute of limitations. Class A and Class B felonies also carry no limitations period under Connecticut law (CGS § 54-193(a)). Most other felonies must be prosecuted within 5 years; misdemeanors within 1 year under CGS § 54-193(b).

Filing a complaint with the Superior Court — not merely retaining counsel or sending a demand letter — constitutes commencement of a civil action under Connecticut Practice Book § 8-1. Service of process on the defendant must follow within the applicable time window to complete proper commencement.

Causal relationships or drivers

The variance across Connecticut limitations periods reflects deliberate legislative policy choices rooted in the nature of the underlying harm, the availability of evidence, and the relative power of the parties.

Evidence decay: Short limitations periods (1–2 years) apply to claims where testimonial and documentary evidence degrades rapidly — such as personal injury claims under CGS § 52-584, which sets a 2-year ceiling from discovery of injury, itself capped within 3 years from the act or omission. Longer periods apply where physical or financial records persist: written contract claims under CGS § 52-576 carry a 6-year period.

Asymmetric information: Products liability statutes incorporate a discovery rule because defective product injuries often manifest years after exposure. CGS § 52-577a reflects legislative recognition that consumers cannot reasonably detect latent product defects at the time of purchase.

Public safety primacy: Connecticut's choice to impose no limitations period on Class A felonies, including murder and first-degree sexual assault, reflects the legislature's judgment that public safety and prosecutorial access to evolving forensic technology outweigh defendants' interests in repose. DNA-based reopening of cold cases is an explicit driver of this policy architecture. Readers seeking broader context on Connecticut criminal procedure will find procedural mechanics beyond limitations periods addressed there.

Classification boundaries

Connecticut limitations periods cluster into five functional categories based on claim type:

1. No limitations period: Murder, Class A and Class B felonies (CGS § 54-193(a)).
2. 6-year civil period: Written contracts, UCC sales contracts, actions on a judgment (CGS § 52-576; CGS § 52-598a).
3. 3-year civil period: General tort claims, fraud (CGS § 52-577), legal malpractice discovery trigger (CGS § 52-577, as interpreted).
4. 2-year civil period: Personal injury and wrongful death — subject to 3-year outer cap (CGS § 52-584); medical malpractice with 2-year discovery trigger, 3-year outer cap (CGS § 52-584).
5. 1-year civil and criminal period: Libel and slander (CGS § 52-597); misdemeanor prosecutions (CGS § 54-193(b)).

Connecticut also maintains specialized periods outside these clusters: actions against municipal bodies under the Connecticut Tort Claims Act (CGS § 52-557n) require a 6-month notice of claim before suit and are subject to a 2-year outer period. Employment discrimination complaints filed with the Connecticut Commission on Human Rights and Opportunities (CHRO) must be lodged within 300 days of the discriminatory act under CHRO administrative rules, which is distinct from and often shorter than the parallel civil limitations period.

The Connecticut Uniform Trade Secrets Act (CGS § 35-57) imposes a 3-year discovery-based limitations period on misappropriation claims, while Connecticut environmental enforcement actions under the Connecticut Department of Energy and Environmental Protection (DEEP) operate under agency-specific timelines separate from Title 52 civil periods.

Tradeoffs and tensions

Several fault lines create interpretive complexity in Connecticut limitations law.

Discovery rule vs. certainty: Expanding discovery-rule accrual benefits injured plaintiffs who lack timely awareness of harm. It simultaneously creates open-ended exposure for defendants who cannot know when the limitations clock will be deemed to have started. Connecticut courts balance this through statutes of repose — absolute cutoffs regardless of discovery — but repose periods do not apply uniformly across all claim types, producing category-specific unpredictability.

Tolling and the diligence problem: Connecticut law tolls (suspends) the limitations period for minority (CGS § 52-577d for childhood sexual abuse extends the period to 30 years from the date of majority or 3 years from discovery, whichever is later), mental incapacity, and fraudulent concealment by the defendant. Tolling disputes — whether a defendant's conduct actually concealed the claim — generate satellite litigation that may consume more judicial resources than adjudicating the underlying claim.

Retroactive extension: The Connecticut General Assembly has extended limitations periods retroactively, most prominently for childhood sexual abuse through CGS § 52-577d as amended. Courts have upheld these extensions as constitutional when the prior period had not yet expired, but retroactive revival of already-expired claims remains constitutionally contested under Connecticut and federal due process doctrine.

The intersection with Connecticut tort law fundamentals illustrates how limitations periods interact with doctrines like continuing tort and relation-back, both of which affect when a period is deemed to have run.

Common misconceptions

Misconception 1: The period runs from the date of injury discovery in all civil cases.
Connecticut's default rule under CGS § 52-577 anchors the clock to the date of the act or omission, not discovery. The discovery rule is an exception, not the default, and applies only where a specific statute or judicial precedent has adopted it for that claim category.

Misconception 2: Filing a police report or administrative complaint tolls the civil limitations period.
Filing with a law enforcement agency or administrative body does not pause the civil statute of limitations. A CHRO complaint pauses the CHRO administrative process but does not toll a parallel civil action deadline under CGS § 52-577.

Misconception 3: Criminal charges can be reinstated after a limitations period expires if new evidence emerges.
Once a criminal limitations period expires for a covered offense, prosecution is barred regardless of newly discovered evidence — unless the offense falls into a no-limitations category or the legislature has enacted a valid revival provision. New DNA evidence does not revive an expired felony charge for Class C, D, or E felonies.

Misconception 4: The 6-year contract period applies to oral agreements.
CGS § 52-576 covers written contracts. Oral contracts are governed by CGS § 52-581, which sets a 3-year period. This distinction collapses only if partial performance has occurred, which may convert an oral agreement into a hybrid enforcement question.

Misconception 5: Service of process and filing are interchangeable for commencing an action.
Connecticut Practice Book § 8-1 treats commencement as the filing of a complaint with the clerk of court. Service of process is a separate required step, and failure to serve within the statutory window — even after timely filing — can result in dismissal for insufficiency of process.

Checklist or steps (non-advisory)

The following sequence maps the structural steps involved in assessing a Connecticut limitations period. This is a procedural reference, not legal advice.

1. Identify the claim category — Determine whether the action is civil or criminal, and identify the specific cause of action (tort, contract, malpractice, felony, misdemeanor, etc.).
2. Locate the governing statute — Match the claim to the applicable provision in Connecticut General Statutes Title 52 or Title 54.
3. Determine the accrual rule — Establish whether the claim uses injury-in-fact accrual, discovery-rule accrual, or a hybrid standard with an outer repose cap.
4. Calculate the accrual date — Identify the specific date of the act, omission, injury, or discovery event that triggers the clock.
5. Check for applicable tolling provisions — Assess whether minority, incapacity, fraudulent concealment, or statutory tolling applies.
6. Apply any notice-of-claim prerequisites — For municipal defendants under CGS § 52-557n or administrative agency claims, verify whether a pre-suit notice period applies before the limitations clock is engaged.
7. Confirm the commencement mechanism — Verify that filing a complaint with the Superior Court within the computed deadline is required, and confirm service-of-process timelines under the Connecticut Practice Book.
8. Cross-check for federal claim overlap — Identify whether any parallel federal claim (e.g., Section 1983, Title VII) imposes a shorter or different limitations period administered through federal court.

Resources on self-represented litigants in Connecticut address how pro se parties navigate these procedural checkpoints without counsel.

Reference table or matrix

For the full procedural architecture governing Superior Court civil filings, see the Connecticut civil procedure rules reference. The broader landscape of how Connecticut structures its legal system — including court hierarchy and jurisdictional allocation — is documented at the site index.

References

• Connecticut General Statutes, Title 52 – Civil Actions (Official Text)
• Connecticut General Statutes, Title 54 – Criminal Procedure (Official Text)
• Connecticut Judicial Branch – Connecticut Practice Book
• Connecticut Commission on Human Rights and Opportunities (CHRO)
• Connecticut Department of Energy and Environmental Protection (DEEP)
• Connecticut General Assembly – Bill and Statute Search