Statute of Limitations for Unjust Enrichment / Restitution in California

6 min read

Published April 8, 2026 • Updated April 15, 2026 • By DocketMath Team

This article is for informational purposes only and does not constitute legal advice. Laws change frequently — verify all citations with current official sources.

Overview

Run this scenario in DocketMath using the Statute Of Limitations calculator.

In California, many unjust enrichment / restitution-style claims are analyzed using a default 2-year statute of limitations under Code of Civil Procedure (CCP) § 335.1.

California does not treat “unjust enrichment” and “restitution” as always being a single, stand-alone cause of action with a dedicated limitations period. Instead, courts typically look for the most analogous limitations category based on the underlying wrongful conduct and harm being sued about. For this reference page, the general/default rule is a 2-year limitations period, and no claim-type-specific sub-rule was found beyond that general/default period.

Note: Unjust enrichment is often a theory of liability rather than a separately labeled statutory claim with its own dedicated deadline. As a practical matter, the limitations analysis usually turns on what the facts effectively allege, and then applies the closest fit—here, the general/default 2-year period under CCP § 335.1.

If you’re using DocketMath, the goal is usually to model the “deadline” workflow:

pick the key date (typically accrual or notice/discovery),
calculate the baseline 2-year period,
adjust for any recognized accrual nuances or tolling facts.

This is for general planning, not legal advice. If your facts are unusual or involve special procedural circumstances, consider getting advice from a qualified professional.

Limitation period

The default California limitations period for unjust enrichment / restitution claims (using the general/default rule) is 2 years.

What “2 years” means in practice

Under CCP § 335.1, the limitations period is treated as two years for the general categories addressed by that statute. This page uses 2 years as the general/default period because no claim-type-specific sub-rule was identified for unjust enrichment / restitution beyond the general/default rule.

Key practical points:

Accrual (start of the clock): The clock generally starts when the claim accrues—often when the plaintiff knew (or reasonably should have known) the facts supporting the claim.
Filing deadline: The lawsuit is generally required to be filed within 2 years of accrual (subject to any tolling or other adjustments).

How DocketMath changes the output

When you enter dates into DocketMath’s statute-of-limitations calculator, the output is driven by your inputs. In a typical “deadline” scenario, you’ll enter:

a key date representing accrual/notice (or the best supported proxy), and
any date adjustments you want to model (such as a tolling period you can substantiate).

Then the calculator provides a computed deadline consistent with a 2-year baseline, and—depending on the tool settings—may support scenario comparisons.

Because accrual and tolling are fact-sensitive, treat calculator output as a timeline planning aid, not a guarantee.

Pitfall to avoid: People often accidentally use the transaction date as the start date, when accrual may occur later (for example, when discovery/notice occurs). If the start date is wrong, the deadline can be materially off.

Key exceptions

Even with a general/default 2-year rule, common “exception-like” adjustments can change the computed deadline. This section outlines recurring categories of issues you may need to model, without making legal determinations about any particular fact pattern.

1) Accrual timing (when the claim is deemed to “start”)

A statute of limitations generally runs from accrual, not necessarily from the date the underlying conduct occurred. Depending on the facts, accrual may be tied to:

when the wrongful conduct occurred, or
when the plaintiff discovered (or should have discovered) the relevant facts.

DocketMath impact: choose the accrual/notice date that best matches the factual timeline you can support. If you’re uncertain, run multiple scenarios (e.g., one based on transaction date and one based on discovery/notice date).

2) Tolling (pauses or extends the clock)

California recognizes tolling in certain situations (for example, certain disabilities or procedural circumstances). Tolling can effectively pause the limitations clock for a period of time, extending the deadline.

DocketMath impact: if you have tolling start/end dates you can document, model them as part of your inputs. If you don’t have reliable tolling dates, don’t guess—use what you can support from the record.

3) Characterization shifts the applicable period (in edge cases)

While this page uses the general/default 2-year period (CCP § 335.1) as the default, real disputes sometimes hinge on how the claim is characterized based on what the lawsuit is truly about.

DocketMath impact: if your restitution theory is tightly linked to conduct/harm that fits a different statutory category (with a different limitations period), then the applicable period may differ. This page does not identify a special unjust-enrichment/restitution sub-rule—so it applies the default only.

Statute citation

CCP § 335.1 — General/default 2-year period.

This page’s default rule is based on the jurisdictional data provided:

General SOL period: 2 years
General statute: CCP § 335.1
Source: https://www.alllaw.com/articles/nolo/personal-injury/laws-california.html

Also, as noted in the briefing instructions: no claim-type-specific sub-rule was found, so the guidance here is intentionally limited to the general/default 2-year analysis for unjust enrichment / restitution modeled for California.

Warning: This is a general/default framework. If the underlying facts suggest a different statutory category or a different accrual/tolling trigger, you may need to re-check the deadline.

Use the calculator

Use DocketMath’s statute-of-limitations calculator at: /tools/statute-of-limitations.

How to enter the facts (inputs)

To keep your modeling consistent for California (US-CA):

Choose the “accrual/notice” date
- Use the date you believe the claim started accruing (or the date you first had sufficient knowledge to assert it).
Use the default 2-year period
- This page assumes 2 years under CCP § 335.1.
Add tolling only if you can support it
- Model tolling using dates tied to your facts or procedural record.

How outputs change when you change inputs

Changing the accrual date: If you move the accrual date forward by 30 days, the deadline typically moves forward by about 30 days under a straightforward 2-year calculation.
Applying tolling: If you add a tolling period of X days, the deadline typically extends by about X days (depending on the tool’s tolling mechanics and how the timeline is entered).
Running scenarios: If you run multiple accrual dates (e.g., transaction date vs. discovery date), you’ll typically get a range of possible deadlines. Use that range to plan and reduce risk.

A practical way to use DocketMath:

Scenario A: earliest plausible accrual date
Scenario B: later plausible discovery/notice accrual date
Then prioritize work toward the earliest risk-minimizing deadline.

If you want the most accurate modeling, gather documents that support your accrual/notice timeline before finalizing a filing strategy.