Statute of Limitations for Breach of Fiduciary Duty in Illinois

5 min read

Published April 8, 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 Illinois, the general statute of limitations (SOL) for an action alleging breach of fiduciary duty is 5 years under 720 ILCS 5/3-6.

That 5-year period is the default because no claim-type-specific sub-rule was found for fiduciary-duty claims in the supplied jurisdiction data. In other words: if a breach-of-fiduciary-duty lawsuit is treated under Illinois’s general limitations framework, the starting point is typically 5 years from the relevant accrual/trigger event described below.

Because breach-of-fiduciary-duty disputes can be pleaded in different procedural forms and can involve different fact patterns, the exact trigger date can be contested. This reference page focuses on the general/default SOL and the most common practical ways people determine when the clock starts—not on providing legal advice.

Note: DocketMath’s statute-of-limitations calculator is for timeline planning. It can’t determine liability or guarantee a court will accept your chosen trigger/accrual date.

Limitation period

The default SOL period for breach of fiduciary duty in Illinois is 5 years. The statute providing this general default is:

720 ILCS 5/3-6 (general 5-year limitation for certain actions)
Source: https://ilga.gov/ftp/Public%20Acts/101/101-0130.htm?utm_source=openai

Default rule (5-year framework)

If your claim is analyzed under Illinois’s general limitations framework, you typically count 5 years from the date the claim is considered to have accrued—i.e., the date the law treats as the event that starts the clock under the applicable accrual standard.

What changes when the “trigger date” changes?

The SOL length stays 5 years, but the deadline date shifts depending on what date you select as the trigger/accrual event.

Common practical trigger candidates include:

the date of the alleged wrongful act
the date the breach was discovered
the date the plaintiff knew or should have known about the breach (depending on how the accrual/knowledge standard is applied to the theory)

Because fiduciary-duty disputes may involve ongoing conduct, there may be more than one plausible trigger date. That’s often where using a calculator helps.

Quick timeline example (how 5 years works)

Assume the accrual/trigger date is March 1, 2021:

SOL end date (default 5 years): March 1, 2026

If instead you use September 15, 2021 as the trigger (e.g., framed as discovery/knowledge of the breach):

SOL end date (default 5 years): September 15, 2026

Same SOL length; different deadline.

Key exceptions

The jurisdiction data provided for this brief points to the general/default 5-year period in 720 ILCS 5/3-6, and it also states that no claim-type-specific sub-rule was found. That means the most important “exception management” in practice is often not “a different SOL length,” but how doctrines may affect when the clock starts or whether time is paused/tolled.

Because the supplied sources do not enumerate specific tolling/discovery exceptions for fiduciary duty under Illinois law, this section stays practical and process-focused.

Common “exception categories” that may affect timing

Use this checklist to confirm what timing theories your fact record and pleadings support:

Warning: Don’t assume “5 years” automatically guarantees your deadline. If accrual/trigger date or tolling is disputed, courts can adopt different timing positions based on the evidence and pleaded theory.

How to handle timing uncertainty using DocketMath

Even if you’re unsure about the exact accrual trigger, you can model the timing risk:

Run DocketMath using the earliest plausible trigger date.
Run it again using the latest plausible trigger date.
Compare the deadlines to estimate a range of potential filing urgency.

This “scenario” approach is frequently more useful than betting on a single trigger date.

Statute citation

The general/default SOL for the timing framework used here is:

720 ILCS 5/3-6 — general 5-year limitations period

Official source link (Illinois General Assembly):
https://ilga.gov/ftp/Public%20Acts/101/101-0130.htm?utm_source=openai

For your internal review, document:

the statutory SOL period (5 years), and
the selected accrual/trigger date you use for counting.

Use the calculator

Use DocketMath’s statute-of-limitations tool to convert an accrual/trigger date into a likely SOL deadline.

Start here: /tools/statute-of-limitations

Inputs you typically use

Depending on how the calculator is configured, you’ll generally provide:

Accrual/trigger date (the date you think the clock starts)
Jurisdiction: **Illinois (US-IL)
SOL rule: the default 5-year period under 720 ILCS 5/3-6

How outputs change as inputs change

Under the default rule, the SOL length is fixed at 5 years—so changing the trigger date changes the resulting deadline.

Example scenario table:

Scenario	Assumed trigger date	Default SOL period	Estimated deadline
Early accrual theory	2021-03-01	5 years	2026-03-01
Later discovery theory	2021-09-15	5 years	2026-09-15

After running each scenario, compare:

which deadline is earlier (more conservative for filing urgency), and
how many days/months separate the scenarios.

Practical filing-time takeaway

If you’re deciding whether to move forward, it’s often prudent to plan against the earliest plausible deadline from your scenarios—because courts may accept earlier accrual/trigger dates than the one you prefer.