Definition
Accrual refers to the point at which a legal right, claim, or obligation comes into existence and becomes enforceable. The term operates across several distinct legal contexts, each with its own technical meaning.
1. Accrual of a cause of action. The moment a claim becomes legally cognizable — that is, when a plaintiff has a ripe right to sue. This is the dominant legal use of the term and the one most consequential in litigation. It determines when a statute of limitations begins to run. Identifying the precise accrual date is often the central dispute in limitations analysis.
2. Accrual in accounting and tax law. The recognition of income or expense in the period in which it is earned or incurred, regardless of when cash actually changes hands. Under accrual-basis accounting, a liability is recorded when it arises, not when it is paid. This meaning is central to tax accounting, contract damages, and the measurement of obligations in commercial and bankruptcy contexts.
3. Accrual of interest or other incremental obligations. The ongoing accumulation of an amount — most commonly interest — over time. A debt accrues interest from a specified date; benefits accrue under a pension plan as an employee satisfies vesting conditions.
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Common Language
Modern common usage (Wiktionary): The act or process of accruing; accumulation. An increase or amount that accumulates over time, especially for a specific purpose.
Historical common usage (Webster's 1913): Webster's 1913 does not provide a substantive entry for "accrual" directly, offering only "accrument" as a rare synonym — reflecting that the term was primarily legal and technical vocabulary rather than general English at that time.
The common meaning captures the accumulation sense well, but misses the pivotal legal function of accrual as a moment of inception rather than a process of growth. In limitations law, accrual is less about accumulation and more about a discrete triggering event — the instant a right crystallizes. A researcher treating accrual as merely synonymous with "buildup" will misread its role in procedural and limitations contexts entirely.
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Common Confusion
Accrual is frequently conflated with two related but distinct concepts:
Accrual vs. discovery. Under the injury rule, accrual occurs when the plaintiff suffers the harm, even if undiscovered. Under the discovery rule, accrual is deferred until the plaintiff knew or reasonably should have known of the injury and its cause. These are competing doctrines that produce different accrual dates for the same underlying wrong. Sources that use "accrual" without specifying which rule applies should be read with caution.
Accrual vs. tolling. Accrual determines when the limitations clock starts. Tolling suspends a clock that has already started running (due to minority, fraudulent concealment, etc.). These are analytically separate inquiries, but historical sources sometimes compress them, using "accrual" loosely to describe situations where limitations has been delayed for any reason.
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Core Elements
For accrual of a cause of action, courts apply one of three competing rules to fix the accrual date:
Injury Rule (Occurrence Rule): The claim accrues at the moment of injury or wrong, regardless of whether the plaintiff is aware of it. The majority default in American law.
Discovery Rule: Accrual is deferred until the plaintiff discovers — or through reasonable diligence should have discovered — the existence of the injury and its probable cause. Applied broadly in medical malpractice, fraud, and latent-injury contexts.
Continuing Violation / Continuing Accrual Doctrine: Where a defendant engages in a course of repeated wrongful acts, each new act may trigger a fresh accrual date. Significant in civil rights, employment discrimination, and nuisance litigation.
The applicable rule varies by jurisdiction and by the nature of the claim. Identifying which rule governs is a prerequisite to any limitations analysis.
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Why It Matters in Research
Accrual is a gateway concept in civil procedure. Getting the accrual date wrong collapses an entire limitations analysis. Researchers should approach historical and cross-jurisdictional sources with several cautions.
First, the discovery rule was not uniformly adopted until well into the twentieth century. Pre-1950 sources — including many cases and treatises — assume the injury rule as the unquestioned default. A researcher applying older authorities to a modern discovery-rule jurisdiction may reach the wrong conclusion without recognizing the doctrinal shift.
Second, the Rapalje & Lawrence materials indexed under this search return entries for related account-law terms rather than a direct entry on accrual itself. This is instructive: nineteenth-century legal dictionaries treated accrual primarily as a feature of account and debt law (when interest accrues, when a demand becomes due), not as the procedural limitations concept that dominates modern usage. Researchers using those sources for limitations doctrine will find the well largely dry and should look to contemporary treatises and case law instead.
Third, accrual in tax and accounting contexts follows an entirely different body of law (Internal Revenue Code, GAAP, financial regulatory standards) that does not map onto tort or contract accrual doctrine. Sources written for one context should not be imported into the other without care.
Fourth, this entry connects directly to the encyclopedia treatment at civpro_131, which provides structured analysis of the three competing accrual rules in civil procedure. Researchers working on limitations questions should use the dictionary and encyclopedia entries in tandem.
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Historical Dictionary Support
Rapalje & Lawrence does not contain a dedicated entry for accrual. The indexed entries returned under this search address account-related terms — account stated, account open and current, and account of loss — suggesting that the dictionary treats accrual as an embedded feature of those doctrines rather than a freestanding concept. This reflects the nineteenth-century understanding: accrual was when a debt or demand became enforceable, a question answered within the law of accounts and assumpsit rather than through a generalized limitations doctrine.
Webster's 1913's near-silence on accrual (directing readers only to the rare synonym "accrument") confirms the term's primarily legal character at that time. It had not yet migrated into standard general vocabulary as a financial or medical term.
The modern expansion of accrual — particularly its procedural role in limitations law and its accounting sense — is largely a twentieth-century development. Researchers should treat pre-twentieth-century sources as relevant to debt and account accrual but of limited utility for modern civil procedure analysis.
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Jurisdictional Note
Accrual rules for statutes of limitations vary significantly by state and by claim type. Federal courts apply a federal accrual standard for federal claims, which often tracks the discovery rule for constitutional torts and fraud-based claims but may differ from the forum state's rule for supplemental state claims. Several states have codified specific accrual rules for medical malpractice, toxic torts, and products liability that modify the common-law defaults.
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Encyclopedia Cross-Reference
Accrual Rules — Discovery Rule, Injury Rule, and Occurrence Rule
Civil Procedure & Evidence Encyclopedia, civpro_131
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