California Evidence Code 1152: Exceptions and Federal Rule 408

California Evidence Code 1152 keeps settlement offers and the discussions around them out of trial when they’re offered to prove that someone is at fault. If you offer money, services, or any other compromise to resolve a disputed claim, that offer, along with anything said during the negotiation, cannot be used against you to establish liability. The rule exists because open negotiation collapses if every concession can be recycled as an admission.

The protection is real, but narrower than most people assume. It has edges, exceptions, and a specific purpose it’s tied to. Here’s what it does, what it doesn’t do, and where settlement evidence can still get in.

What the Statute Covers

EC 1152 reaches offers to pay money, promises to provide services, and payments already made to resolve a claim. It also covers “any conduct or statements made in negotiation thereof,” so the back-and-forth around the offer is shielded, not just the number itself.1California Legislative Information. California Evidence Code Section 1152

The protection applies whether the settlement closed or fell apart. A rejected $50,000 offer on a personal injury claim is inadmissible to show fault, and so is an accepted offer if a related dispute later ends up in a separate case.

An “offer to compromise” doesn’t require formality. It can be a demand letter, an informal phone call floating a number, or a suggestion to split the difference. What matters is that the communication was made to resolve a disputed claim. An offhand statement at the scene of an accident, made before any claim exists, probably isn’t covered.

Humanitarian and Medical Payments

EC 1152 also protects payments made out of compassion rather than as part of a negotiation. If you pay for an injured person’s ambulance or emergency room care right after an accident, that payment cannot be introduced to prove you caused the injury. The statute treats humanitarian motive as an independent basis for exclusion, separate from the compromise motive.1California Legislative Information. California Evidence Code Section 1152 The protection kicks in whether or not a formal claim has been filed.

What EC 1152 Does Not Do

The statute is an evidentiary exclusion, not a privilege. That distinction controls a lot of practical outcomes. A privilege blocks both discovery and admissibility. EC 1152 only blocks admissibility.

Documents and facts don’t become immune from discovery just because they surfaced during settlement talks. If you handed over an internal safety report while negotiating, the other side can still get that report through ordinary discovery. It existed independently of the negotiation. California Evidence Code 1120 states this rule explicitly in the mediation context, and the same logic applies to informal settlement discussions: pre-existing evidence stays discoverable.2Judicial Council of California. California Evidence Code – Section 1120

The statute also limits the purpose it blocks. It excludes settlement evidence offered “to prove liability for the loss or damage or any part of it.”1California Legislative Information. California Evidence Code Section 1152 Offered for a different purpose, the same evidence may come in.

Exceptions: When Settlement Evidence Comes In Anyway

Witness Bias

When a settling party’s witness testifies against a non-settling defendant, the jury can be told about the settlement, especially a sliding-scale arrangement that ties the settling defendant’s payout to the trial outcome. The jury needs to evaluate whether a witness has a financial stake in the verdict. California Civil Jury Instruction 222 permits the settlement agreement to be shown for that credibility purpose.

Insurance Bad Faith Claims

If you’re suing an insurer for breaching its duty of good faith or for violating the unfair claims settlement practices in Insurance Code 790.03(h), evidence of settlement offers is admissible to show how the insurer handled the claim.3California Legislative Information. California Insurance Code Section 790.03

EC 1152(b) adds a fairness rule in that setting. If one side introduces a settlement offer in a bad faith case, either party can demand that all other offers and counteroffers relating to the same loss come in as well. The statute stops a party from spotlighting a single lowball offer while burying later, more reasonable ones.1California Legislative Information. California Evidence Code Section 1152

Partial Payment and Debt Revival

Two categories are carved out of EC 1152 by its own terms. A partial payment made without disputing the claim’s validity is admissible to prove the claim was valid. And a debtor’s payment or promise to pay a preexisting debt is admissible to show a new obligation or the revival of an old one.1California Legislative Information. California Evidence Code Section 1152 Neither situation involves the genuine dispute resolution the statute is meant to protect.

New Trial Motions, Additur, and Remittitur

Outside insurance bad faith actions, settlement offers cannot be introduced in motions for a new trial, in proceedings to increase or reduce a jury’s damages award, or on appeal. EC 1152(b) states this directly and blocks parties from arguing that a verdict was too high or too low based on a rejected settlement number.1California Legislative Information. California Evidence Code Section 1152

Criminal Cases Are Not Covered

EC 1152 almost certainly does not apply in criminal proceedings. Its language refers to proving “liability for the loss or damage,” which is civil terminology. A California appellate court has interpreted it that way, rejecting a defendant’s argument that his offer to pay medical expenses should have been excluded from his criminal trial, and noting that no case law extends the statute to criminal matters.

If your situation could produce both a civil claim and criminal charges, that gap matters. Statements you make in civil settlement talks with the injured party can potentially be used in a criminal prosecution. Talk to a lawyer before opening any negotiation when criminal exposure is on the table.

Mediation Gives You a Stronger Shield

Parties who negotiate through mediation get broader protection under California Evidence Code 1119. Where EC 1152 blocks only admissibility, EC 1119 blocks admissibility and discovery. Communications, admissions, and documents prepared for mediation cannot be compelled into disclosure in any civil proceeding, arbitration, or administrative hearing.4California Legislative Information. California Evidence Code Section 1119

That’s a substantial difference in practice. Under EC 1152, the other side can still discover what you said during settlement talks and may use it for a purpose other than proving liability. Under EC 1119, mediation communications are off-limits to compelled disclosure entirely. If sensitive admissions might come up, structured mediation is often the safer forum.

The same pre-existing evidence limit applies in both contexts. You can’t shield an otherwise discoverable document by introducing it at the mediation table. EC 1120 says so directly for mediation, and the same rule holds for ordinary settlement talks.2Judicial Council of California. California Evidence Code – Section 1120

Federal Court: Rule 408 Instead

If your case is in federal court, Federal Rule of Evidence 408 governs, not EC 1152. The two rules share the same core, but they diverge in ways that affect strategy.

The clearest difference is impeachment. FRE 408 explicitly prohibits using settlement statements “to impeach by a prior inconsistent statement or a contradiction.”5Legal Information Institute (LII). Federal Rule of Evidence 408 – Compromise Offers and Negotiations EC 1152 says nothing about impeachment. Its text only bars evidence offered to prove liability. Whether California courts would permit settlement statements for impeachment purposes case by case is a question the statute leaves open.

FRE 408 also has an exception for criminal cases involving government claims: statements made during negotiations over a claim brought by a government agency in its regulatory or enforcement role are admissible in a related criminal prosecution.5Legal Information Institute (LII). Federal Rule of Evidence 408 – Compromise Offers and Negotiations EC 1152 has no equivalent, though California courts reach a similar result by holding the statute doesn’t apply in criminal cases at all.

Both rules allow settlement evidence for purposes other than proving liability, such as showing witness bias or an effort to obstruct an investigation. FRE 408 lists those permitted purposes on the face of the rule; EC 1152 leaves much of that work to case law and neighboring code sections.