California’s Proposition 51, the Fair Responsibility Act of 1986, splits damages in multi-defendant injury cases into two buckets and applies a different liability rule to each. Economic losses like medical bills and lost wages remain jointly and severally liable, so any defendant found at fault can be forced to pay the entire amount. Non-economic losses like pain and suffering are several only, meaning each defendant pays a share that matches their own percentage of fault, and nothing more. That single distinction shapes how personal injury, property damage, and wrongful death cases play out across the state.
The Two Categories of Damages
Everything under Prop 51 turns on which bucket a loss falls into. Civil Code Section 1431.2(b) defines both.
Economic damages are the verifiable, out-of-pocket losses that come with documentation: medical bills, past and future lost earnings, burial costs, property repair or replacement, loss of use of property, substitute domestic services, and lost business opportunities.1California Legislative Information. California Code 1431.2 – Several Liability for Non-economic Damages
Non-economic damages are subjective harms without a fixed dollar value: pain, suffering, mental anguish, emotional distress, inconvenience, loss of companionship, loss of consortium, injury to reputation, and humiliation.1California Legislative Information. California Code 1431.2 – Several Liability for Non-economic Damages The statutory list is not exhaustive, so other intangible harms can qualify.
Economic Damages: Any Defendant Can Be Made to Pay It All
Civil Code Section 1431 presumes shared obligations are joint unless Section 1431.2 says otherwise.2California Legislative Information. California Code CIV 1431 – Joint Liability Section 1431.2 only carves out non-economic damages, so economic damages stay fully joint and several. Every defendant found liable is on the hook for the plaintiff’s entire financial loss.
In practice, that means a plaintiff who wins $200,000 in medical expenses can collect the full amount from any single defendant, even one found only five percent at fault. That’s by design. The choice was to prioritize the injured person’s ability to recover actual financial costs over a minor defendant’s interest in paying only a proportional share.
A defendant who pays more than their share can seek contribution from the others under Code of Civil Procedure Section 875, but that’s a separate action, and if the other defendants are broke, the paying defendant absorbs the loss. The plaintiff’s right to full economic recovery from any liable defendant is not affected by whether contribution succeeds.3California Legislative Information. California Code of Civil Procedure 875
Non-Economic Damages: Each Defendant Pays Only Their Fault Share
Section 1431.2(a) makes each defendant’s liability for non-economic damages several only. Each pays the percentage of the non-economic award that matches their percentage of fault, and not a dollar more.1California Legislative Information. California Code 1431.2 – Several Liability for Non-economic Damages
Suppose a jury awards $500,000 for pain and suffering, and assigns ten percent of the fault to Defendant A and ninety percent to Defendant B. Defendant A owes $50,000. If Defendant B is uninsured and broke, the plaintiff cannot shift the $450,000 shortfall onto Defendant A. The California Supreme Court in DaFonte v. Up-Right, Inc. confirmed that reading, holding the statute “plainly attacks the issue of joint liability for noneconomic tort damages root and branch” and shields every defendant from any share of non-economic damages beyond their own comparative fault.
For a plaintiff, that creates real risk. Recovery for pain and suffering depends not only on the size of the verdict but on whether the most-at-fault defendant can actually pay.
How Fault Percentages Get Assigned
The jury (or judge in a bench trial) assigns a specific percentage of fault to every party who contributed to the harm. Those percentages become the mathematical skeleton of the entire judgment.
Your Own Fault
California follows pure comparative negligence. Your own carelessness reduces your recovery proportionally but never eliminates it. If you’re found thirty percent at fault, your total damages award drops by thirty percent, applied across both economic and non-economic damages. A plaintiff who is ninety-nine percent at fault can still collect the remaining one percent.
Empty Chairs
The jury must also account for the fault of people who aren’t parties to the lawsuit. These absent actors might include a defendant who already settled and left the case, a government entity with immunity, or someone who simply wasn’t sued. The California Supreme Court has confirmed that a defendant’s share of non-economic damages is calculated against all fault responsible for the injury, not just the fault of the defendants in the courtroom. The principle traces back through DaFonte v. Up-Right, Inc. and American Motorcycle Assn. v. Superior Court.
Defense counsel use this aggressively. Pointing to an absent party can shrink a named defendant’s fault percentage, and with it their non-economic obligation. Plaintiffs should expect the argument and be ready to show the non-party’s actual contribution was minimal.
When the Several-Liability Shield Doesn’t Apply
Prop 51’s protection has limits. Two situations can leave a defendant on the hook for more than their proportional share of non-economic damages.
Intentional Torts
In B.B. v. County of Los Angeles (2020), the California Supreme Court unanimously held that intentional tortfeasors cannot use Prop 51 to reduce their share of non-economic damages. The court ruled that Section 1431.2(a) “does not authorize a reduction in the liability of intentional tortfeasors for noneconomic damages based on the extent to which the negligence of other actors — including the plaintiffs, any codefendants, injured parties, and nonparties — contributed to the injuries in question.” A defendant who committed assault, fraud, or another intentional tort bears the full non-economic damages tied to that conduct, with no credit for anyone else’s negligence.
Vicarious Liability
When liability derives from someone else’s conduct rather than a defendant’s own fault, apportionment doesn’t work the way it does with independent tortfeasors. The most common example is an employer held liable under respondeat superior for an employee’s negligence. In Diaz v. Carcamo (2011), the California Supreme Court held that a vicariously liable employer is not treated as a separate defendant for fault allocation. The employer’s share instead matches whatever fault the jury assigns to the employee, and Prop 51 cannot cut it below that number.
How Pretrial Settlements Change the Math
Multi-defendant cases often see some defendants settle before trial while others go to verdict. Under Code of Civil Procedure Section 877, a good-faith pretrial settlement reduces the plaintiff’s claims against the remaining defendants by the amount paid or the amount stated in the release, whichever is greater. A settling defendant who wins a good-faith determination is also freed from contribution claims by the defendants left in the case.4California Legislative Information. California Code of Civil Procedure 877
Prop 51 complicates the offset. It applies only to economic damages, because each defendant is already severally liable for non-economic damages in proportion to fault, leaving no joint pool to offset against. Courts use the Espinoza method (from Espinoza v. Machonga, 1992) to handle this. The court figures out what percentage of the total jury verdict was economic damages, multiplies the settlement by that percentage, and reduces the economic award by that amount. The non-economic portion stays untouched.
Parties cannot outrun this by labeling settlement dollars as “economic” or “non-economic” in their agreement. Courts have consistently held that private allocations would intrude on the jury’s factfinding role and are not controlling.
What Cases Prop 51 Covers
The statute reaches actions “for personal injury, property damage, or wrongful death, based upon principles of comparative fault.”1California Legislative Information. California Code 1431.2 – Several Liability for Non-economic Damages That takes in the vast majority of negligence lawsuits. It does not apply to contract disputes or cases where comparative fault plays no role.
Where strict product liability claims are mixed with negligence claims, California courts have generally applied Prop 51’s apportionment framework. The state has long allocated fault between strictly liable manufacturers and negligent defendants, and most authority treats these mixed cases as falling under the comparative-fault umbrella. Outcomes can still vary with how the claims are structured, so the intersection remains fact-specific.
What the Split Means for Each Side
The two-bucket rule pushes plaintiffs and defendants in opposite directions.
Plaintiffs want as much of the award as possible classified as economic, because those damages are collectible in full from any solvent defendant. Documenting medical costs, lost wages, and other verifiable losses matters even more when one of the defendants may be judgment-proof. If most of the fault lands on an uninsured party, a plaintiff can still collect full economic damages from a minor defendant, but the pain-and-suffering recovery from that minor defendant remains locked to their small fault percentage.
Defendants want the opposite. Every percentage point of fault assigned to another party, present or absent, comes off the non-economic obligation. Defense counsel often file cross-complaints or press empty-chair allocations for exactly that reason.
One procedural point matters for any defendant relying on Prop 51: if the special verdict form does not separate economic from non-economic damages, the right to several liability on the non-economic portion can be waived. Keeping those categories distinct on the form is essential.