The Strategic Deadline: Why the Contract Statute of Limitations Is Non-Negotiable
At its core, a statute of limitations is a procedural rule that acts as a stopwatch on your legal rights. For breach of contract, it defines the finite window in which you can file a lawsuit to enforce an agreement. This isn’t a minor technicality; it’s a complete procedural bar. A court will dismiss a time-barred claim regardless of how clear the breach or how significant the damages. The clock’s start date is not when you sign the contract, but when the breach occurs or, in some jurisdictions, when it is discovered.
Why does this matter beyond a simple calendar check? Because it fundamentally shifts contract management from a reactive to a proactive discipline. Knowing your state’s specific deadline isn’t just about last-minute litigation—it dictates the timeline for demand letters, settlement negotiations, and even internal financial reporting. For a detailed look at the mechanisms courts use to enforce agreements once filed, see our guide on contract enforcement mechanisms. The strategic imperative is clear: this single deadline transforms a substantive right into a perishable asset. Overlooking it doesn’t just weaken your position; it renders a legally valid claim legally unenforceable, handing the other party an absolute defense.
The Critical Distinction: A Bar to Remedy, Not a Bar to Right
What most discussions miss is the nuanced legal philosophy at play. The statute of limitations extinguishes the remedy (the lawsuit), not the underlying right. This is why a debtor can still ethically pay a time-barred debt—the obligation itself hasn’t vanished. However, from a business perspective, this distinction collapses. If you cannot access the courts, your right is commercially worthless. This procedural nature makes the statute a powerful strategic tool. A party anticipating a claim may deliberately delay negotiations, running down the clock—a tactic known as “lulling.” This underscores why precise timing knowledge is not passive awareness but active, actionable intelligence critical for both drafting contracts and initiating disputes.
The Foundational Split: Written vs. Oral Contracts and the Nuance of “Writing”
The most universal starting point across all 50 states is the distinction between written and oral contracts. Typically, written contracts enjoy a longer limitations period, often 4 to 6 years, reflecting the relative ease of proving the terms of a documented agreement. Oral contracts usually have a shorter period, commonly 2 to 4 years, acknowledging the evidentiary challenges and the policy favoring the resolution of claims based on fading memories.
Patterns and Outliers: A Framework for Analysis
Moving beyond a simple list, professionals can navigate state laws by recognizing key patterns:
- The Standard Dichotomy Group: The majority of states (e.g., New York, Illinois, Texas) maintain a clear longer period for written contracts (often 4-6 years) versus oral (often 2-4 years).
- The Uniformity Group: A few states, like Florida, apply the same period (typically 5 years) to both written and oral contracts, simplifying the initial analysis but making other distinctions like accrual rules more critical.
- The Extended Written Term Group: States like Delaware (3 years for oral, but 6 years for written contracts for the sale of goods under the UCC) and Ohio (8 years for written) offer longer protection for documented agreements, influencing where a business might prefer to specify governing law.
The often-overlooked complexity lies in how a state defines “writing” for this purpose. With the rise of electronic commerce, most states have adopted laws giving electronic records the same legal effect as paper. However, questions can arise about emails, text message chains, or signed PDFs constituting a “written” contract sufficient to trigger the longer period. This ambiguity makes clear contract formation practices essential. For more on the enforceability of different agreement formats, review our analysis of oral versus written contracts.
Beyond the Basic Table: The Hidden Variables in State Deadlines
Listing state time limits in a table provides a necessary map, but navigating the terrain requires understanding the local rules of the road. Three critical, often-missed variables determine whether the standard clock applies to your specific situation.
1. The Accrual Trigger: When Does the Clock Actually Start?
The “breach” doesn’t always start the clock at the moment of failure. Jurisdictions apply different accrual rules:
- The “Breach” Rule (Majority): The clock starts when the breach occurs, even if the injured party is unaware of it. This is the default for most contract claims.
- The “Discovery” Rule (Limited Application): For certain contracts, like those involving latent defects or professional services (e.g., a poorly drafted clause by an attorney that causes harm years later), the clock may start when the breach is discovered, or should have been discovered with reasonable diligence. This rule is narrower than many assume and is highly state-specific.
2. Tolling Provisions: The Legal Pause Button
Tolling suspends or extends the limitations period under specific circumstances. Common tolling scenarios include:
| Tolling Scenario | Typical Effect | Strategic Note |
|---|---|---|
| Defendant’s Absence from State | Period may be paused while defendant is not present to be served. | Rarely applies to corporations registered to do business in the state. |
| Plaintiff’s Legal Disability (e.g., minority, insanity) | Clock may be paused until disability is removed. | Almost never applies to business entities. |
| Fraudulent Concealment by Defendant | Period may be tolled until plaintiff discovers the fraud. | Requires active steps by defendant to hide the breach, not mere silence. |
| Pending Bankruptcy (Automatic Stay) | The filing of bankruptcy triggers an automatic stay on all litigation. | The limitations period is typically tolled for the duration of the stay. |
3. The UCC Overlay: A Four-Year Uniform Rule for Goods
A critical layer for businesses selling tangible products is Article 2 of the Uniform Commercial Code (UCC). Adopted in some form by all states, the UCC sets a firm, four-year statute of limitations for breaches of contracts for the sale of goods. This period runs from the date of tender of delivery, regardless of discovery. Crucially, the parties can reduce this period by contract to not less than one year, but they cannot extend it beyond four years. This preemption often overrides a state’s general written contract period for sales transactions, a nuance that invalidates many generic “state deadline” charts.
The Actionable Insight: Jurisdiction is a Choice
For experts, the key takeaway is that the applicable statute of limitations is a function of governing law and forum selection clauses. A contract formed in California between New York companies, specifying that Delaware law governs, will likely be subject to Delaware’s limitations period. This turns contract drafting into a strategic exercise in jurisdictional selection, weighing factors like limitations periods alongside substantive law. Failing to specify these clauses leaves the determination to complex conflict-of-law rules, adding cost and uncertainty. Understanding how federal and state laws interact in areas like the UCC is essential for this analysis.
The State-by-State Landscape: More Than Just a Number
While most articles treat state statutes of limitations as a simple lookup table, this approach is dangerously superficial for litigation and strategic planning. The raw number of years is just the entry point; the real intelligence lies in the adjacent statutory language, judicial interpretations, and jurisdictional quirks that dictate how that clock operates. A professional doesn’t just need to know “six years”—they need to know which section of the state code governs, whether the court has carved out exceptions, and how local judges have historically applied the rule to specific contract types.
Written vs. Oral Contracts: The Critical Distinction Most States Preserve
WHY this matters: The distinction between written and oral contract time limits is a foundational principle rooted in evidence law and the historical difficulty of proving oral agreements. A shorter period for oral contracts reflects a policy judgment about the reliability of fading memories and the lack of tangible proof. This isn’t just procedural; it shapes negotiation and record-keeping behavior at the contract formation stage.
HOW it works: Most states maintain separate clocks. For example, California’s 4-year limit for written contracts (Cal. Code Civ. Proc. § 337) versus 2 years for oral contracts (Cal. Code Civ. Proc. § 339) creates a binary choice that can determine a case’s viability years later. The enforceability of the contract itself is a separate question from the time limit for suing on it.
WHAT 99% of articles miss: The definition of “written” is often litigated. Is a signed purchase order a “written contract”? What about a series of authenticated emails? States like New York have specific statutes (NY CPLR § 213) for “contract, obligation or liability evidenced by a writing,” and case law constantly refines what constitutes sufficient “evidencing.” Furthermore, some states, like Florida, have abolished the distinction for most general contracts, applying a single 5-year limit (Fla. Stat. § 95.11(2)(b)). This creates a strategic consideration: in a multi-state dispute, the choice of law clause may determine not just liability but also the applicable limitations period.
| State | Written Contract | Oral Contract | Key Statutory Citation & Notable Quirks |
|---|---|---|---|
| California | 4 Years | 2 Years | Cal. Code Civ. Proc. §§ 337, 339. Distinct 4-year rule for sales of goods under UCC (§ 2725). |
| New York | 6 Years | 6 Years | NY CPLR § 213(2). For most oral contracts. Specific shorter periods exist for certain actions (e.g., 4 years for sale of goods). |
| Texas | 4 Years | 4 Years | Tex. Civ. Prac. & Rem. Code § 16.004. For debt. Some oral promises may fall under 2-year “swear” rule (§ 16.075). |
| Florida | 5 Years | 5 Years | Fla. Stat. § 95.11(2)(b). Abolished general oral/written distinction. Construction contracts have specific, complex accrual rules. |
| Delaware | 3 Years | 3 Years | 10 Del. C. § 8106. Notable for its “under seal” rule: 20-year limit for contracts signed as a “specialty” (sealed). |
| Illinois | 10 Years | 5 Years | 735 ILCS 5/13-206, 5/13-205. Extremely long 10-year written period is a major litigation advantage. |
Expert Context: Always verify the primary source. Statutes are amended, and case law evolves. For instance, many states have adopted a 4-year limit for contracts for the sale of goods, per Article 2 of the Uniform Commercial Code (UCC) (§ 2-725), which often preempts general contract law. This UCC period is strictly “accrual-based” and generally cannot be tolled, a critical nuance.
Critical Timing Mechanics: When the Clock Starts Ticking
The default rule is simple: the statute of limitations clock starts on the date of the breach. But in complex commercial reality, that date is often shrouded in fog. The “discovery rule” is the legal principle that postpones the clock’s start until the plaintiff discovers, or through reasonable diligence should have discovered, the injury. Its application is the single most contentious issue in contract limitations defense.
WHY this matters: The discovery rule exists as an equity-based exception to prevent unjust outcomes where a wrong is inherently unknowable. Its application directly impacts litigation strategy, evidence preservation, and settlement leverage. A plaintiff arguing for the discovery rule must be prepared for a “mini-trial” on the issue of their own diligence before even reaching the merits of the breach.
HOW it works: Courts apply a fact-intensive, two-pronged test: (1) When did the plaintiff actually discover the breach? and (2) When should a reasonably prudent person in their position have discovered it? The focus is on the latter. For example, in a construction defect case, a latent plumbing leak behind a wall may not be discoverable until damage manifests years later. However, if the owner ignored obvious signs of water staining, a court may find they “should have discovered” it earlier.
WHAT 99% of articles miss: The discovery rule is not uniformly applied to all contract claims. Most states restrict it to cases involving fraud, latent defects, or professional malpractice (like legal or accounting services). In pure breach of contract for non-payment, the breach is typically considered “knowable” the day payment was due. The emerging battleground is in digital and data contracts. If a data breach violates a service-level agreement (SLA), does the clock start at the intrusion, at the exfiltration, or when the company reasonably discovers it? Recent cases are leaning toward a duty of active monitoring, narrowing the window for application of the rule.
Actionable Patterns for Arguing For or Against the Discovery Rule
- For Plaintiffs: Gather evidence demonstrating the “inherently unknowable” nature of the breach. Emails showing the defendant actively concealed the issue are golden. Document all steps taken to investigate once a suspicion arose.
- For Defendants: Attack the “reasonable diligence” prong. Show that industry standards, regular audits, or obvious “red flags” existed long before the plaintiff claims to have discovered the breach. Argue that the rule is inapplicable to the specific, express terms of the contract breached.
- Critical Caveat: Some states, like New York, are notoriously hostile to the discovery rule in standard contract actions, strictly adhering to the “accrual at breach” doctrine unless a statute explicitly provides otherwise (see ACE Sec. Corp. v. DB Structured Prods., Inc.). Knowing your jurisdiction’s judicial temperament is as important as knowing the law.
Pausing the Clock: The High Bar for Tolling
Tolling is the legal equivalent of hitting pause on the statute of limitations clock. It’s a lifeline for plaintiffs facing an imminent deadline, but courts do not grant it lightly. Successful tolling requires meeting specific, often stringent, statutory conditions and bearing the evidentiary burden to prove them.
WHY this matters: Tolling doctrines prevent a defendant from gaming the system. If a party skips town or is legally incapacitated, it would be unjust to allow the clock to run out. However, from a defense perspective, tolling arguments are often a last-ditch effort by a plaintiff who has slept on their rights, and successfully defeating them can end a case before it starts.
HOW it works: Tolling is not automatic; it must be pled affirmatively and proven. Common grounds include:
- Defendant’s Absence from the Jurisdiction: The plaintiff must prove the defendant was “not amenable to service of process” within the state for a continuous period. Merely being on a business trip is insufficient; the defendant must have had no known agent for service or physical presence to serve.
- Bankruptcy Automatic Stay: The filing of bankruptcy triggers an automatic stay (11 U.S.C. § 362) that tolls the clock against the debtor. However, the tolling period is often precisely defined, and the clock may resume immediately upon the lifting of the stay or the closing of the case.
- Legal Disability: Minority or mental incapacity at the time the cause of action accrues can toll the statute. The key is the disability must exist at the time of accrual; a disability that arises later typically does not toll.
WHAT 99% of articles miss: The evidentiary pitfall. To prove “absence from the jurisdiction,” a plaintiff needs more than a statement; they need documentary evidence like skip-trace reports, certified mail return receipts, or affidavits from process servers. Furthermore, tolling periods are often non-cumulative. If multiple grounds exist, you cannot stack them to add more time. Most critically, tolling does not reset the clock; it merely pauses it. When tolling ends, the clock resumes from where it stopped. A common fatal error is calculating the new deadline as “tolling period + statute,” instead of “original clock paused + remaining time.”
The Contractual Wildcard: Can You Contract Around the Statute?
Parties often ask if they can shorten or extend the statutory period by contract. The answer is a nuanced “it depends.”
- Shortening the Period: Most states permit a shorter contractual limitations period if it is reasonable. A 90-day period to sue for a complex construction dispute would likely be struck down as unconscionable. A one-year period in a standard consumer contract may be challenged but is often upheld.
- Extending the Period: This is far more restricted. Many states have public policy statutes that void any agreement to extend the limitations period before a cause of action arises. After a breach, a written waiver or “tolling agreement” is generally enforceable. These are common in ongoing settlement negotiations.
- The Federal Overlay: In disputes involving federal law or interstate commerce, federal courts sitting in diversity apply state tolling rules, but they may also consider federal equitable tolling doctrines, adding another layer of complexity.
Ultimately, treating the statute of limitations as a static chart is a rookie mistake. It is a dynamic, procedural weapon and shield, deeply intertwined with the facts of the breach, the diligence of the parties, and the specific procedural quirks of the forum state. Mastery requires moving beyond the number to the mechanics of the clock itself.
Strategic Tolling: How Courts Stop the Clock and How to Prove It
While a state’s statute of limitations sets the default deadline, the clock isn’t always ticking. Tolling doctrines suspend or extend that deadline, transforming a seemingly stale claim into a viable lawsuit. For professionals, understanding tolling isn’t about memorizing exceptions; it’s about mastering the strategic proof required to invoke them. Courts don’t grant tolling lightly—it requires clear, often documented, evidence.
The Mechanics and Evidentiary Hurdles of Common Tolling Doctrines
Tolling matters because it embodies the law’s preference for deciding cases on their merits over procedural technicalities, but only where fairness demands it. It works in real life through specific, evidence-driven arguments. What most articles miss is that successfully “tolling the statute of limitations” is less about citing a rule and more about building a documented timeline that satisfies a skeptical judge.
- The Discovery Rule: This rule delays the clock’s start until the plaintiff discovers, or reasonably should have discovered, the breach. WHY it matters: It prevents defendants from concealing a breach until the limitation period expires. HOW it works: The plaintiff must prove the date of discovery and argue why earlier discovery was not reasonable. WHAT is missed: Courts are increasingly scrutinizing the “reasonable diligence” standard, especially for sophisticated business parties. A breach hidden by complex accounting may toll the clock, but a missed payment on a monthly statement likely will not. The burden of proof is on the plaintiff.
- Fraudulent Concealment: This is an active, intentional effort by the defendant to hide the breach. WHY it matters: It directly punishes bad-faith conduct. HOW it works: The plaintiff must prove affirmative acts of concealment beyond mere silence. WHAT is missed: Distinguishing between non-disclosure (which rarely tolls) and active concealment (which does) is critical. For example, providing falsified delivery reports is active concealment; simply not sending an invoice is not.
- Defendant’s Absence from the Jurisdiction: Many states toll the period if the defendant cannot be served within the state. WHY it matters: It prevents defendants from evading suit by leaving. HOW it works: The plaintiff must demonstrate the defendant was physically absent and had no agent for service within the state. WHAT is missed: This rarely applies to corporations, which are always “present” where registered agents operate, and is largely irrelevant in an era of long-arm statutes permitting service on out-of-state entities.
- Legal Disability: Statutes may toll for a plaintiff’s minority or mental incapacity. WHY it matters: It protects vulnerable parties. HOW it works: The disability must exist when the cause of action accrues. WHAT is missed: This is a narrow, statutory exception with little application in commercial contract disputes between business entities.
A Tactical Checklist: Preserving or Challenging a Tolling Argument
For the professional, tolling is a litigation weapon. Use this checklist to assess a claim’s viability or to attack a stale one.
| Scenario | Actionable Step | Evidence to Secure | Recent Litigation Insight |
|---|---|---|---|
| Asserting the Discovery Rule | Immediately, upon suspected breach, document your investigation. Send an internal memo outlining the suspicion and steps to confirm. | Internal emails, audit reports, consultant findings showing the date confusion was resolved. Contrast with regular reports that showed no issue. | Courts are rejecting “we didn’t know” arguments from sophisticated parties with access to data. In a 2022 Delaware Chancery case, a claim failed because the plaintiff had received annual reports hinting at the issue years prior. |
| Alleging Fraudulent Concealment | Frame the defendant’s actions as affirmative steps to hide, not just a failure to disclose. Plead with particularity. | Falsified documents, contradictory communications, proof the defendant had a duty to speak (fiduciary, regulatory) and lied. | A Texas appellate court recently upheld tolling where a contractor provided forged inspection certificates. The key was proving the creation of a false document, not just an omission. |
| Defending Against a Tolling Claim | Attack the “reasonable diligence” standard. Show the plaintiff had all necessary information to discover the breach earlier. | The plaintiff’s own internal records, publicly filed documents, or industry-standard reporting that should have triggered inquiry. | In commercial cases, the trend is toward requiring proactive diligence. A federal court applying New York law dismissed a claim where the plaintiff admitted it “didn’t bother to read” the quarterly statements it received. |
Navigating Conflicts: When Federal Law Overrides Your State Clock
Most contract disputes are governed by state law, including their statutes of limitations. However, the interplay between federal vs state limitations creates a complex layer for experts. This matters because choosing the wrong limitation period can be a fatal error, and federal law can preempt state clocks in specific, high-stakes contexts. In real life, this conflict is resolved through a nuanced analysis of the claim’s essential character.
The “Borrowing Statute” Framework and Federal Preemption
Federal courts often “borrow” state statutes of limitations for claims arising under federal law that lack a congressionally-set deadline. However, they typically apply federal tolling rules to that borrowed period. This hybrid approach is a critical nuance. For example, a breach of contract claim based on a federal program (like a Medicare provider agreement) might use the state’s contract period but federal equitable tolling principles.
True federal preemption of the state clock occurs in narrow, defined areas:
- Admiralty Contracts: Maritime contracts fall under federal common law, which typically applies a laches doctrine (unreasonable delay prejudicing the defendant) rather than a fixed statute, though some courts borrow state periods by analogy.
- Specific Federal Statutes: Some federal laws creating a contractual right include their own limitation periods. For instance, a claim for breach of a contract with the federal government under the Tucker Act has its own timeline. Claims under the Federal Acquisition Regulation (FAR) follow specific procedural deadlines.
- Civil Rights Contracts: While not pure contract claims, certain civil rights violations with a contractual nexus (e.g., discrimination in contracting under 42 U.S.C. § 1981) use a federal four-year statute of limitations per 28 U.S.C. § 1658, not state law.
Jurisdictional Strategy for Mixed Claims
What 99% of articles miss is the strategic implication for pleading. A claim pleaded solely as a state law breach may be time-barred, but recasting its core as a violation of a federal statutory duty (if plausible) could invoke a longer federal period. Conversely, removing a case to federal court under diversity jurisdiction does not change the applicable state statute of limitations; the federal court will apply the law of the state where it sits, including its tolling rules. The professional’s analysis must start with this question: “Is the duty breached rooted in state common law or a federal statute or program?” The answer dictates the clock. For more on how these legal systems interact, see our guide on how U.S. federal law interacts with state business laws.
Advanced Strategy & Emerging Trends: Beyond the Deadline
The landscape of limitation periods is not static. Savvy professionals look beyond the statutory table to tactical preservation moves and underreported judicial shifts that redefine risk.
Immediate Action: The Preservation Letter
If you are near a deadline and need more time to investigate or negotiate, sending a formal “litigation hold” or “preservation of claims” letter is a crucial stopgap. WHY it matters: It creates a contemporaneous record of your assertion that a breach may exist, which can support a later argument for equitable tolling or counter a defense of laches. HOW it works: The letter should clearly identify the contract, the nature of the potential claim, and demand the preservation of all relevant documents and data. WHAT is missed: Such a letter does not legally toll the statute. It is a tactical, pre-litigation move that demonstrates diligence and can sometimes prompt settlement talks, but it does not substitute for filing a complaint.
Unreported Shifts: Contractual Shortening, Remote Work, and Digital Discovery
Three emerging trends are reshaping the practical application of limitation periods:
- Contractual Shortening Clauses: Parties are increasingly inserting clauses that shorten the statutory period, sometimes to as little as one year. Their enforceability varies by state. California, for instance, generally prohibits shortening periods to less than one year. New York courts will enforce reasonable shortening clauses. The trend shows courts are more skeptical of these clauses in consumer or adhesion contracts but may uphold them in sophisticated, negotiated commercial agreements. A “zipper clause” (stating the written contract is the complete agreement) can sometimes block tolling arguments based on prior oral assurances.
- Remote Work and Jurisdictional Confusion: With dispersed parties, determining where a breach occurred—and thus which state’s law applies—is more complex. A breach may be deemed to occur where the injury is felt (e.g., where the non-breaching party is headquartered) or where performance failed. This jurisdictional dispute can consume time and resources, effectively altering the tactical value of a shorter limitation period.
- The Digital Discovery Rule: In breaches involving cyber incidents or SaaS platform failures, courts are grappling with the “discovery rule.” When does a company “reasonably discover” a data breach or a systemic software flaw? The trend is toward expecting more sophisticated monitoring and earlier discovery, especially if other customers reported issues. This is tightening the effective window for filing suit even where the discovery rule applies.
For professionals, this means contract negotiation is a front-line defense. Consider pushing back on overly short limitation clauses and ensure your contracts have a clear choice-of-law and forum selection provision. For dispute resolution alternatives, understand the difference between arbitration and mediation, as these forums may have different rules. In litigation, plead discovery rule arguments with specific, factual detail about the investigation. Static tables of state deadlines are a starting point, but the real game is played in the nuances of proof, jurisdiction, and evolving judicial sentiment.
Frequently Asked Questions
It's a procedural rule that sets a finite deadline to file a lawsuit after a contract breach occurs. Once this period expires, a court will dismiss the claim even if the breach is clear, acting as an absolute defense for the other party.
In most states, the clock starts when the breach occurs. However, some jurisdictions apply a 'discovery rule' for specific contracts (like those with latent defects), starting the clock when the breach is or should have been discovered through reasonable diligence.
Most states have longer periods for written contracts (often 4-6 years) versus oral contracts (often 2-4 years), reflecting the ease of proving documented terms. Some states, like Florida, apply the same period to both.
In California, the statute of limitations is 4 years for written contracts and 2 years for oral contracts, as per Cal. Code Civ. Proc. §§ 337 and 339. For sales of goods under the UCC, it's a distinct 4-year rule.
New York generally has a 6-year statute of limitations for both written and most oral contracts under NY CPLR § 213(2). However, specific shorter periods exist, like 4 years for the sale of goods.
Texas has a 4-year statute of limitations for written contracts and for debt, per Tex. Civ. Prac. & Rem. Code § 16.004. Some oral promises may fall under a 2-year limit.
Florida applies a single 5-year statute of limitations for most general contracts, having abolished the oral/written distinction, as per Fla. Stat. § 95.11(2)(b). Construction contracts have specific, complex accrual rules.
Illinois has an extremely long 10-year period for written contracts and a 5-year period for oral contracts, per 735 ILCS 5/13-206 and 5/13-205, which provides a major litigation advantage.
Article 2 of the UCC sets a firm four-year statute of limitations for breaches of contracts for the sale of goods, running from the tender of delivery. Parties can contractually reduce this period to no less than one year but cannot extend it beyond four years.
Tolling is a legal doctrine that suspends or extends the statute of limitations period under specific circumstances, such as the defendant's absence from the state, the plaintiff's legal disability, fraudulent concealment by the defendant, or a pending bankruptcy automatic stay.
Fraudulent concealment tolling pauses the statute of limitations clock when the defendant takes active steps to hide the breach. It requires proof of affirmative acts of concealment, not mere silence, and lasts until the plaintiff discovers the fraud.
Most states permit a shorter contractual limitations period if it is reasonable. However, extending the period is more restricted; many states void agreements to extend the period before a cause of action arises, though written waivers after a breach are generally enforceable.