California subrogation law lets an insurer that has paid a claim recover what it paid from the person or company that actually caused the loss. The insurer steps into the policyholder’s legal position and pursues the at-fault party, but it can never recover more than the policyholder could have recovered, and its claim against your settlement is limited by statutory caps, comparative fault, attorney’s fees, and, in many cases, your own right to be fully compensated first. The rules differ by claim type: health insurance, auto, workers’ compensation, property, and hospital liens each run on different tracks.
What Subrogation Means and Its Built-In Limit
The core idea comes from equity. When your insurer pays a loss caused by someone else, it inherits your rights against that person. It also inherits every defense that person could have raised against you. If your own claim would have been reduced by your negligence, barred by the statute of limitations, or defeated by a contract term, the insurer’s subrogation claim faces the same outcome.1Justia Law. Allstate Ins. Co. v. Mel Rapton, Inc. (2000)
That “step into your shoes” rule is the single most important thing to understand. It cuts both ways. The insurer gets your rights, but not more than your rights.
Three sources of law shape how these claims work: equitable principles from case law, specific statutes, and the subrogation clause written into your policy. Insurance Code Section 11580.2 governs uninsured motorist recovery.2California Legislative Information. California Insurance Code 11580.2 Civil Code Section 3040 caps health insurance liens.3California Legislative Information. California Civil Code 3040 Labor Code Section 3852 authorizes workers’ compensation carriers to sue third parties.4California Legislative Information. California Labor Code 3852 Contractual clauses supply the rest, and California courts read any ambiguity in those clauses against the insurer.
Deadlines That Control the Claim
A subrogation claim inherits the statute of limitations of the underlying claim. Miss it and the recovery right is gone.
- Personal injury: two years from the date of injury, under Code of Civil Procedure Section 335.1.5California Legislative Information. California Code of Civil Procedure 335.1
- Property damage: three years from the date of damage, under Code of Civil Procedure Section 338.6California Legislative Information. California Code of Civil Procedure 338
- Uninsured motorist subrogation: three years from the date the insurer made payment, under Insurance Code Section 11580.2(g).2California Legislative Information. California Insurance Code 11580.2
The uninsured motorist deadline is unusual because it runs from payment, not from the accident, which can extend the window considerably. Equitable tolling may also pause the clock if the insured is pursuing an administrative remedy or other proceeding in good faith and the third party had timely notice.7Judicial Branch of California. Deadlines to Sue Someone
Health Insurance Liens and the Civil Code 3040 Caps
If your health plan paid your medical bills after an injury caused by someone else, the plan can assert a lien on any settlement or judgment you recover from that person. California caps how much the plan can take.
Under Civil Code Section 3040, the lien cannot exceed the actual amounts the plan paid for non-capitated services. For capitated care, the cap is 80% of the usual and customary charge for equivalent non-capitated services in the same geographic area. Layered on top of that base cap is a percentage ceiling tied to the size of your recovery:
- If you were represented by an attorney, the lien cannot exceed one-third of the total settlement or judgment.8California Legislative Information. California Civil Code 3040
- If you handled the claim yourself, the lien cannot exceed one-half of the total settlement or judgment.8California Legislative Information. California Civil Code 3040
The insurer takes whichever amount is lower. If a court finds you were partially at fault, the lien shrinks by the same percentage. Under the common fund doctrine, it is further reduced by a proportionate share of your attorney’s fees and litigation costs.8California Legislative Information. California Civil Code 3040
The Made Whole Doctrine
This is the biggest protection California policyholders have. Under the Made Whole Doctrine, an insurer generally cannot collect on a subrogation claim until you have been fully compensated for all your losses. If your documented damages are $200,000 and your total recovery from the at-fault party is $120,000, the health plan’s lien is subordinated to the gap. You get made whole first.
Two boundaries to know. First, some insurance contracts try to waive the doctrine through express policy language, and courts weigh those waivers case by case. Second, health plans governed by ERISA, the federal statute covering many employer-sponsored benefits, may be exempt from the doctrine entirely. Federal courts have held that ERISA preemption can override California’s protection, letting a self-funded employer plan collect its full lien even when you were not made whole. If your health coverage is through a large employer’s self-funded plan, the protection may not reach you.
Auto Insurance Subrogation and Comparative Fault
Auto subrogation is the version most drivers actually encounter. Your insurer pays for repairs, medical bills, or a rental after another driver’s fault, and then goes after that driver or their carrier for the money back.
Every California auto policy must carry uninsured motorist coverage under Insurance Code Section 11580.2. When the insurer pays under that coverage, the statute expressly gives it the right to be subrogated to your rights against the person who caused the injury, to the extent of what it paid. It then has three years from the date of payment to sue.2California Legislative Information. California Insurance Code 11580.2
California uses pure comparative fault, established in Li v. Yellow Cab Co. (1975).9Stanford Law – Supreme Court of California. Li v. Yellow Cab Co. (1975) That directly cuts into subrogation. If the insured was 30% at fault, the subrogation claim drops by 30%, no matter what the policy actually paid out. At-fault parties and their carriers push hard on comparative fault because it is often where real dollars get shifted.
Medical payments coverage works differently. No California statute automatically gives an insurer reimbursement rights for med-pay benefits. The right depends entirely on the policy language, and terms vary widely. Med-pay reimbursement is still subject to the Made Whole Doctrine unless the contract explicitly gives the insurer priority.
Property Damage Subrogation and the Anti-Subrogation Rule
Homeowner’s and commercial property carriers pursue subrogation for fires caused by a contractor’s negligence, water damage from a neighbor’s plumbing failure, and losses from defective products. The insurer has to prove the third party’s negligence or the product’s defect actually caused the loss, which usually requires expert investigation.
One limit matters most: the anti-subrogation rule. An insurer cannot bring a subrogation claim against its own insured. A landlord’s property carrier, for example, cannot subrogate against a tenant who is an additional insured under the same policy. The protection extends to parties who had a pre-loss contractual relationship requiring the insurance. Commercial leases often include mutual waiver-of-subrogation clauses, where both sides agree their carriers will not pursue each other. California generally enforces these waivers as long as they do not invalidate the underlying policy.
Hospital Liens
Hospitals have their own statutory lien track, separate from health insurance subrogation. Under the California Hospital Lien Act (Civil Code Sections 3045.1 through 3045.6), a hospital that treated you for injuries caused by a third party can lien any resulting settlement or judgment. The lien is capped at 50% of the judgment paid by the third party.10California Legislative Information. California Civil Code 3045.4
The hospital has to follow the notice requirements in Civil Code Section 3045.3 and file any enforcement action within one year after payment to the injured person. A third-party tortfeasor or carrier that pays without honoring a properly noticed lien can be held personally liable for the lien amount up to that 50% ceiling. When the injured person also has health insurance that already paid the hospital at discounted rates, courts are split on whether the lien recovers the discounted amount or the hospital’s full customary charges.
Medi-Cal Recovery
When Medi-Cal pays for injury-related treatment, the Department of Health Care Services has an independent statutory right to lien any personal injury settlement or judgment. Under Welfare and Institutions Code Section 14124.76, no settlement, judgment, or award is final until DHCS has had a reasonable time to calculate and assert its lien. DHCS can only reach the portion of the settlement representing medical expenses.11California Legislative Information. California Welfare and Institutions Code 14124.76
The reporting requirement is strict. Medi-Cal beneficiaries or their representatives must report any personal injury claim to DHCS within 30 days of filing an action, and must notify DHCS again after any settlement. Skipping this can create serious exposure, including potential liability for the full lien amount.12CA.gov. Personal Injury Lien Process – DHCS
Workers’ Compensation Subrogation
When a workplace injury is caused by someone other than the employer, Labor Code Section 3852 lets the employer or its workers’ compensation carrier sue the third party for the benefits it paid. Recovery can include the full amount of compensation paid plus wages, pension, and other payments to the employee or dependents.4California Legislative Information. California Labor Code 3852
A longstanding California rule reduces the employer’s recovery when the employer’s own negligence contributed to the injury. If the third-party defendant proves the employer was also negligent, the judgment against that defendant is reduced by the amount of workers’ compensation benefits the employee received, so a negligent employer cannot profit through subrogation on an injury it helped cause.
New 2026 Cap for Peace Officers and Firefighters
Effective January 1, 2026, Labor Code Section 3852 adds a subdivision for peace officers and firefighters employed by a city, county, or fire protection district. When the injured employee’s total damages exceed what is left after the employer’s claim, and the third party’s insurance limits are not enough to fully compensate everyone, the employer’s recovery is capped at one-third of the third-party defendant’s applicable liability insurance limits. The cap takes precedence over any employer lien or subrogation claim and applies to both settlements and judgments.4California Legislative Information. California Labor Code 3852
The Common Fund Doctrine
If your attorney did the work that produced the recovery, the insurer cannot ride along for free. Under the common fund doctrine, the insurer must pay its proportionate share of your attorney’s fees and litigation costs before collecting on its lien. Civil Code Section 3040 codifies this for health insurance liens, requiring a pro rata reduction commensurate with reasonable attorney’s fees and costs.8California Legislative Information. California Civil Code 3040
An insurer can avoid the fee-sharing obligation by showing it actively participated in the litigation or that its own efforts substantially contributed to creating the fund. Most subrogating insurers do not participate, so the reduction almost always applies. Combined with the statutory caps and the Made Whole Doctrine, this is one of the strongest tools for shrinking what an insurer actually takes from a settlement.
Your Rights and Responsibilities as a Policyholder
Most policies require you to cooperate with your insurer’s subrogation efforts. That means providing documentation, responding to requests, and not doing anything that undermines the recovery. If you settle with the at-fault party on your own without accounting for the subrogation interest, the insurer may still have a claim against your proceeds.
On the other side, your insurer has to give you adequate notice before pursuing a subrogation claim so you can protect your own financial interests. Failure to provide proper notice can cost the insurer its subrogation rights. You keep the right to negotiate your own settlement with the at-fault party, and the insurer has to balance its recovery against your interests in reaching a fair resolution.
How Subrogation Disputes Get Resolved
Most disputes cluster on the same points. The Made Whole Doctrine is the most common fight. The insured argues total damages exceeded the recovery and the lien should be subordinated; the insurer argues the policy waived the doctrine or the settlement was adequate. Courts look at documented damages against the actual recovery.
Comparative fault is the second recurring issue. Third-party defendants argue the insured shared responsibility, which proportionally reduces the subrogation recovery. In property cases, they may add pre-existing conditions or unrelated causes.
Contractual subrogation disputes, especially in health insurance, often go to arbitration under the policy or plan document. Workers’ compensation disputes over allocation of a third-party recovery between the employer and the injured employee are resolved by the court under Labor Code Section 3852.4California Legislative Information. California Labor Code 3852 Litigation stays available when other approaches fail, but the cost of trial pushes most subrogation matters to settlement, because the amounts at stake often will not justify the expense of a full trial.