Breach of Contract vs. Breach of Fiduciary Duty
A contract claim asks what was promised. A fiduciary claim asks what was owed. Partners, managers, agents, and trustees can be liable for both on the same set of facts.
| Dimension | Breach of Contract | Breach of Fiduciary Duty |
|---|---|---|
| Source of the duty | The agreement the parties negotiated | The relationship itself. Partners, LLC managers, corporate officers, agents, and trustees owe duties of loyalty and care |
| What you must prove | A valid contract, your performance, their failure to perform, and resulting damages | A fiduciary relationship, breach of the duty of loyalty or care, and resulting damages |
| Damages available | Contract Compensatory and consequential damages measured by the contract | Broader Compensatory damages, disgorgement of profits, constructive trust, and punitive damages where malice, oppression, or fraud is shown by clear and convincing evidence (Cal. Civ. Code §3294) |
| Statute of limitations | 4 years written, 2 years oral (Cal. Code Civ. Proc. §§337, 339) | Generally 4 years under Cal. Code Civ. Proc. §343, or 3 years under §338(d) where the claim sounds in fraud |
| Does a contract have to exist | Required Yes. No agreement, no claim | Not required No. The duty exists independent of any written agreement |
| Typical scenario | A partner fails to make a capital contribution the operating agreement requires | A partner diverts a company opportunity, self-deals, or competes against the entity |
When it is a contract claim
If the obligation appears in the operating agreement, partnership agreement, or employment contract, and the other side simply did not do it, that is breach of contract. Proof is narrower, the remedy is defined by the document, and any fee clause in the agreement applies. This is the cleaner claim when the duty was written down.
When it is a fiduciary claim
Fiduciary duties attach to the position, not the paperwork. A managing member who takes a company opportunity, an officer who self-deals, or an agent who takes a secret commission breaches duties no contract had to create. California codifies partner duties at Corporations Code §16404. The remedies reach further than contract damages, including disgorgement of what the fiduciary gained.
In partnership disputes we usually plead both
The same conduct often violates the agreement and the duty of loyalty. Pleading both preserves the contract claim as the reliable path and keeps disgorgement and punitive exposure on the table. It also affects settlement value, because fiduciary claims are harder for the other side to insure and harder to discharge in bankruptcy.
About breach of contract vs. breach of fiduciary duty.
The questions we field most often, answered the same way we'd answer them on a first call, without filler and without disclaimers that are not required.
Q.Who owes a fiduciary duty in California?
Q.Why add a fiduciary claim if I already have a contract claim?
Q.Does the operating agreement limit fiduciary duties?
Partner dispute, or something more?
We review the agreement and the conduct, then tell you which claims the facts support. Free consultation.