Latest update (checked October 13, 2026): Costco continues to face injury and product-related claims in court. On September 30, 2026, Costco removed a personal injury case, Sepulveda v. Costco Wholesale Corporation, from Nevada state court to federal court, according to the court docket. Separately, a Santa Rosa, California shopper’s lawsuit over an allegedly falling liquor display cabinet, which seeks more than $14 million, has also been moved to federal court at Costco’s request. Costco has also signaled it will seek dismissal of the Kirkland Signature rotisserie chicken advertising class action. We found no new settlement or verdict in these cases as of this date.
Last updated: October 2026
If a product you bought at Costco injured you or made you sick, you may have a valid product liability lawsuit against one of the largest retailers in the world. A Costco product liability lawsuit lets injured consumers seek compensation for medical bills, lost wages, and pain caused by defective or dangerous products sold at Costco warehouses or on Costco.com.
These cases are more common than most people realize. Costco sells hundreds of thousands of products across dozens of categories, and when even a small percentage of those products are defective, the number of affected consumers can reach into the thousands.
This guide covers everything you need to know for 2026: which cases are active, who qualifies, how much victims have recovered, and how to start a claim.
Costco Product Liability Lawsuit 2026: What’s Happening Right Now
Costco product liability lawsuits are actively moving through courts across the United States in 2026. Several cases involving food contamination, dietary supplements, and defective household products are at various stages of litigation this year.
The legal pressure on Costco has grown steadily. As the company’s revenue crossed $240 billion annually, plaintiffs’ attorneys have become more aggressive about pursuing claims against it directly, rather than chasing smaller manufacturers who may lack the assets to pay meaningful settlements.
In 2026, the product categories generating the most litigation include Kirkland Signature food items, supplements and vitamins, power tools, and children’s products. New claims are being filed regularly as more consumers learn about their rights.
| 2026 Active Litigation Areas | Status |
|---|---|
| Kirkland Signature supplements | Active class actions and individual suits |
| Food contamination cases | Ongoing in federal and state courts |
| Children’s products and toys | New filings in 2025 to 2026 |
| Power tools and equipment | Pre-litigation demand letters being sent |
| Recalled household items | Settlement negotiations ongoing |
The pace of new filings has not slowed. If anything, 2026 is shaping up to be one of the busiest years yet for Costco-related product liability litigation.
What Is a Costco Product Liability Lawsuit
A Costco product liability lawsuit is a legal claim that a product sold by Costco caused injury or harm due to a defect, and that Costco bears legal responsibility for that harm. These lawsuits can be filed under three main legal theories.
The first theory is strict liability. Under strict liability, Costco can be held responsible simply because a defective product passed through its supply chain, regardless of whether Costco was careless. This is a powerful legal tool for injured consumers.
The second theory is negligence. Here, a plaintiff must show Costco failed to exercise reasonable care, whether in selecting vendors, inspecting products, or responding to known safety complaints.
The third theory is breach of warranty. Products come with implied guarantees of safety and fitness. When a product fails those guarantees and causes harm, a warranty-based lawsuit is possible.
| Legal Theory | What You Must Prove | Strength for Consumers |
|---|---|---|
| Strict Liability | Product was defective and caused harm | High, no need to prove carelessness |
| Negligence | Costco was careless in some way | Moderate, requires more evidence |
| Breach of Warranty | Product failed its implied or stated guarantees | Moderate to high depending on facts |
Most successful product liability lawsuits against Costco use at least two of these theories together.
Costco Defective Product Lawsuit Cases: Notable Examples
Real Costco defective product lawsuits have produced documented outcomes that show what these cases look like in practice. These examples reflect the range of products and injury types that generate litigation.
One notable category involves power strips and electrical products sold under third-party brands at Costco. Several cases have alleged that these products caused house fires due to overheating defects, resulting in both property damage and personal injury claims.
Food products have generated significant litigation volume. Cases involving contaminated salads, E. coli-linked products, and salmonella in packaged poultry have moved through courts in California, Washington, and other states where Costco operates major warehouse clusters.
| Case Type | Alleged Defect | Injury Type | Current Stage |
|---|---|---|---|
| Kirkland Signature nuts recall | Undisclosed allergen | Allergic reactions, hospitalization | Settled |
| Packaged salad contamination | E. coli O157:H7 | Gastrointestinal illness | Litigation |
| Children’s trampoline | Design defect, collapse risk | Fractures, head injuries | Settlement discussions |
| Electrical power strips | Overheating, fire risk | Property damage, burns | Active litigation |
| Dietary supplements | Label mislabeling, contamination | Organ damage claims | Class certification pending |
Each of these case types follows a similar legal path, starting with an injury, then an investigation, then court filings, and eventually either a settlement or trial.
Key Takeaway: Costco defective product lawsuits span food, supplements, children’s items, and electronics, and real cases have moved through courts producing documented outcomes for injured consumers.
Costco Kirkland Signature Product Lawsuit
Kirkland Signature lawsuits occupy a unique legal position because Costco itself is the brand owner, not just the retailer. That distinction matters enormously in a courtroom.
When you buy a third-party branded product at Costco, there may be two potential defendants: the manufacturer and Costco as retailer. When you buy a Kirkland Signature product, Costco steps into the manufacturer’s shoes for liability purposes in many jurisdictions, even if a contract manufacturer actually produced the item.
This means plaintiffs in Kirkland Signature lawsuits often have a stronger case against Costco directly. Costco cannot simply point the finger at the manufacturer and walk away when the product carries its own name.
| Kirkland Signature Product Type | Alleged Issues in Recent Cases |
|---|---|
| Omega-3 fish oil supplements | Contamination, label accuracy disputes |
| Protein powders | Heavy metals, undisclosed ingredients |
| Multivitamins | Dosage inconsistencies, mislabeling |
| Pre-made food items | Contamination, spoilage before date |
| Infant products | Safety standard compliance questions |
In 2026, Kirkland Signature supplements remain the most litigated subcategory within Costco’s private label line.
Who Qualifies for a Costco Product Liability Lawsuit
You may qualify for a Costco product liability lawsuit if a product purchased at Costco or Costco.com caused you physical injury, illness, or documented financial harm. Qualification does not require a Costco membership in every case, though membership records can serve as useful evidence.
The core eligibility factors courts look at include whether the product was defective, whether you used it as intended, and whether the defect caused your specific injury. If you misused the product in an unforeseeable way, that complicates the claim.
You do not necessarily need to be the original buyer. Family members, guests, and bystanders injured by a defective Costco product may also have valid claims under bystander liability principles recognized in many states.
| Eligibility Factor | Qualifies | May Not Qualify |
|---|---|---|
| Who purchased the product | Any buyer, including gift recipients | Stolen or obtained through unauthorized means |
| Type of use | Normal intended use | Extreme misuse or modification |
| Type of harm | Physical injury, illness, financial loss | Minor inconvenience, no actual harm |
| Membership requirement | Not always required | Varies by case type and jurisdiction |
| Time since purchase | Within statute of limitations | Outside filing deadline |
If you are unsure whether you qualify, the facts of your specific situation will determine eligibility.
Costco Food Contamination Lawsuit
Costco food contamination lawsuits arise when food products sold in Costco warehouses or online are linked to foodborne illness outbreaks. These cases are among the most frequently filed product liability claims against Costco.
Common contaminants at the center of past and current cases include E. coli, Salmonella, Listeria monocytogenes, and Hepatitis A. Food contamination cases are often strengthened by CDC outbreak investigation reports and FDA recall notices that tie specific product lots to documented illnesses.
The Costco rotisserie chicken has faced scrutiny in multiple incidents. Packaged salads and fresh produce items have generated the most class action attention because they affect large numbers of consumers who purchased the same contaminated lot.
| Pathogen | Common Products Involved | Severity of Illness |
|---|---|---|
| E. coli O157:H7 | Leafy greens, ground beef | Severe, potential kidney failure |
| Salmonella | Poultry, nuts, seeds | Serious, requires hospitalization in severe cases |
| Listeria | Deli meats, soft cheeses, prepared foods | Dangerous for pregnant women, elderly |
| Hepatitis A | Fresh produce, frozen berries | Liver damage, long recovery |
| Norovirus | Any food handled improperly | Acute illness, dehydration |
Victims of Costco food contamination can seek compensation for medical bills, lost income, and the long-term health consequences of serious foodborne illness.
Key Takeaway: Food contamination lawsuits against Costco are backed by government outbreak records and FDA recall data, giving plaintiffs strong documentary evidence from the start of their case.
Costco Recalled Product Lawsuit 2026
A Costco recalled product lawsuit involves seeking compensation for injuries caused by a product that was later officially recalled by a government agency or the manufacturer. A recall does not automatically win your lawsuit, but it is powerful evidence that the product was defective.
In 2026, recalled products generating active litigation include certain children’s furniture and sleep products, electrical appliances with overheating risks, and food items tied to contamination events. Costco has generally responded quickly to CPSC and FDA recalls by pulling products from shelves, but injuries occurring before the recall are still actionable.
Recall victims face a specific strategic question: file an individual lawsuit or wait to join a class action. Individual suits typically move faster and can produce higher individual payouts. Class actions take longer but require less personal involvement.
| Recall Source | What It Covers | How It Helps Your Case |
|---|---|---|
| CPSC Recall | Consumer products, appliances, children’s items | Strong evidence of design or manufacturing defect |
| FDA Recall | Food, supplements, medical devices | Supports contamination or labeling claims |
| NHTSA Recall | Automotive products and accessories | Useful for car-related items sold at Costco |
| Voluntary Recall by Manufacturer | Any product category | Still useful but slightly weaker than mandatory recall |
You can check the CPSC and FDA databases for current recall records matching products you have purchased at Costco.
Suing Costco as a Retailer vs. the Manufacturer
Suing Costco as a retailer is legally different from suing the company that made the product, and understanding this distinction can change your entire legal strategy. Most consumers do not realize that in many states, retailers like Costco can be held strictly liable for selling defective products, even if they had nothing to do with creating the defect.
California, New York, and several other states impose strict liability on retailers in the chain of distribution. This means Costco cannot escape liability just by pointing to the original manufacturer.
In states that follow the “innocent seller” doctrine, however, Costco can sometimes push liability onto the manufacturer and get dismissed from the lawsuit early. Texas, for example, has statutory protections for innocent sellers under specific conditions.
| Jurisdiction Type | Costco’s Liability as Retailer | Best Strategy |
|---|---|---|
| Strict liability state (e.g., California) | Fully liable as part of distribution chain | Sue Costco directly and aggressively |
| Innocent seller state (e.g., Texas) | May seek dismissal, shift blame to manufacturer | Sue both Costco and manufacturer |
| Mixed approach states | Depends on specific facts and product | Case-by-case analysis required |
| Federal court cases | Apply relevant state law | Jurisdiction determines outcome |
Think of it like this: if a store sells you a broken ladder and you fall off it, whether you can successfully sue the store depends heavily on which state you are in.
Key Takeaway: Whether Costco can be sued as a retailer for a product it did not manufacture depends on your state’s product liability laws, and this single factor can determine who you sue and how strong your case is.
How to File a Costco Product Liability Claim
Filing a Costco product liability claim follows a structured process, and starting it correctly improves your chances of recovering compensation. The first step is preserving evidence before anything else.
Preserve the defective product itself if you still have it. Take photographs immediately. Seek medical attention and keep all records. Do not throw anything away. Courts need tangible evidence of the defect and your injury.
After preserving evidence, the process moves through several documented phases.
| Step | Action | Why It Matters |
|---|---|---|
| 1 | Preserve the product, packaging, and receipt | Physical evidence is your strongest asset |
| 2 | Seek medical treatment and document everything | Medical records link the injury to the product |
| 3 | Report the defect to CPSC or FDA if applicable | Creates an official record outside your lawsuit |
| 4 | Consult a product liability attorney | Attorney evaluates case viability at no upfront cost |
| 5 | Attorney sends demand letter to Costco | Formal notice triggers the claims process |
| 6 | Negotiate settlement or file in court | Most cases settle before trial |
| 7 | Receive compensation | Payment upon settlement approval or verdict |
Most product liability attorneys work on contingency, meaning they collect a percentage of your settlement rather than charging upfront fees. That percentage typically ranges from 25% to 40% depending on complexity.
Costco Product Liability Lawsuit Statute of Limitations
The statute of limitations for a Costco product liability lawsuit is the legal deadline by which you must file your claim, and missing it permanently ends your right to sue. This deadline varies by state and by the type of harm you suffered.
Most states set the product liability statute of limitations between two and four years from the date of injury. California allows two years. Washington State allows three years. New York allows three years. Florida recently changed its standard to two years.
The “discovery rule” can extend this deadline in some cases. Under the discovery rule, the clock starts when you discovered or reasonably should have discovered that the product caused your harm, not necessarily the date the injury occurred.
| State | Standard Deadline | Discovery Rule Available |
|---|---|---|
| California | 2 years from injury | Yes |
| Washington | 3 years from injury | Yes |
| New York | 3 years from injury | Yes |
| Texas | 2 years from injury | Yes, with limitations |
| Florida | 2 years from injury (updated) | Yes |
| Illinois | 2 years from injury | Yes |
There is also a concept called the statute of repose, which sets an absolute outer limit regardless of when you discovered the harm. Some states cut off claims 10 to 12 years after the product was first sold.
Key Takeaway: Filing deadlines are non-negotiable once they pass. In most states, you have two to three years from the date of your injury to file a Costco product liability lawsuit.
Costco Product Liability Lawsuit Settlement Amount
Settlement amounts in Costco product liability lawsuits vary widely based on injury severity, evidence strength, and the number of plaintiffs involved. There is no single standard payout.
Minor injury cases with full recoveries and clear evidence have settled in the range of $10,000 to $75,000. Moderate injury cases involving ongoing medical treatment or missed work have produced settlements ranging from $75,000 to $500,000. Severe injury cases involving permanent disability, organ damage, or wrongful death have resulted in settlements or verdicts exceeding $1 million.
Class action settlements distribute funds across many plaintiffs, which typically means smaller individual payouts. Individual lawsuits carry higher risk but significantly higher potential rewards.
| Injury Severity | Typical Settlement Range | Notes |
|---|---|---|
| Minor injury, full recovery | $10,000 to $75,000 | Strong evidence required |
| Moderate injury, ongoing treatment | $75,000 to $500,000 | Medical documentation critical |
| Severe injury, permanent effects | $500,000 to $2,000,000+ | Expert testimony typically needed |
| Wrongful death cases | $1,000,000 to $5,000,000+ | Varies significantly by state and facts |
| Class action individual payout | $50 to $5,000 | Depends on class size and total fund |
These are ranges based on reported case data and publicly available settlement records. Your specific outcome depends on the unique facts of your situation.
Costco Class Action Lawsuit Payout 2026
Costco class action lawsuit payouts in 2026 depend on the total settlement fund, the number of approved claimants, and the tier structure of the settlement. Class actions are designed to compensate large groups of people who suffered similar harm from the same product.
In a typical class action settlement structure, there are multiple claimant tiers. Tier one usually covers people with documented proof of purchase and documented harm. Tier two covers those with proof of purchase but less documented harm. Tier three often covers people who can self-certify a purchase without a receipt.
The reality of class action payouts is that individual checks are often modest. A $20 million settlement fund split among 200,000 claimants averages $100 per person before attorney fees are deducted.
| Class Action Tier | Typical Requirement | Estimated Payout Range |
|---|---|---|
| Tier 1: Documented injury + proof of purchase | Medical records plus receipt | $500 to $5,000+ |
| Tier 2: Proof of purchase, no documented injury | Membership records or receipt | $50 to $300 |
| Tier 3: Self-certification, no receipt | Declaration under penalty of perjury | $10 to $75 |
| Subclass: Severe personal injury | Extensive documentation | Negotiated individually |
Monitoring class action settlement databases and the CPSC website lets you track whether a qualifying settlement is open for claims.
Costco Lawsuit Compensation: How Much Can You Get
Compensation in a Costco product liability lawsuit covers several categories of harm, not just your immediate medical bills. Understanding all available damage categories helps you pursue the full amount you are entitled to.
Economic damages are the most straightforward. These cover measurable financial losses like hospital bills, medication costs, physical therapy, lost wages from missed work, and future lost earning capacity if your injury is permanent.
Non-economic damages address harm that does not have a price tag on a receipt. Pain and suffering, emotional distress, loss of enjoyment of life, and loss of consortium for affected spouses fall into this category. These damages often exceed economic damages in serious injury cases.
| Compensation Category | What It Covers | Documentation Needed |
|---|---|---|
| Medical expenses | Hospital, doctor, therapy, medication bills | Medical records and bills |
| Lost wages | Income lost during recovery | Pay stubs, employer letter |
| Future medical costs | Ongoing treatment for permanent injuries | Expert medical testimony |
| Pain and suffering | Physical pain, emotional distress | Medical records, personal testimony |
| Loss of enjoyment | Inability to do activities you loved | Personal testimony, evidence |
| Punitive damages | Punishment for extreme corporate misconduct | Evidence of intentional or reckless behavior |
Punitive damages are rarer but available when Costco or a manufacturer knew about a defect and deliberately concealed it from consumers.
Key Takeaway: Total compensation in a Costco product liability lawsuit includes economic losses, pain and suffering, and potentially punitive damages, and serious cases can produce seven-figure recoveries when all categories are properly documented.
Costco Product Liability Lawsuit Timeline
A Costco product liability lawsuit typically takes between one and four years to fully resolve, depending on whether it settles early or goes to trial. Most cases settle before reaching a courtroom.
The timeline starts immediately after your injury. Evidence preservation, medical treatment, and attorney consultation should happen within the first few weeks. Waiting too long can damage your case even if you are still within the statute of limitations.
After retaining an attorney, the investigation and pre-litigation phase typically runs three to six months. Filing the lawsuit, the discovery process, and any class certification proceedings add another one to two years.
| Phase | Typical Duration | Key Activity |
|---|---|---|
| Immediate post-injury | First 1 to 4 weeks | Evidence preservation, medical treatment |
| Attorney consultation | Weeks 2 to 8 | Case evaluation, retainer agreement |
| Pre-litigation investigation | Months 2 to 6 | Expert review, demand letter, negotiation |
| Lawsuit filing | Month 4 to 9 | Complaint filed in appropriate court |
| Discovery phase | Months 6 to 24 | Depositions, document production, expert reports |
| Settlement negotiations | Months 12 to 36 | Mediation, settlement offers |
| Trial (if no settlement) | Months 24 to 48 | Jury selection, evidence presentation, verdict |
Most cases resolve during the settlement negotiation phase. Trials are the exception, not the rule.
Costco Rotisserie Chicken and Food Product Lawsuits
Costco’s rotisserie chicken and broader fresh food products have been subjects of both individual lawsuits and regulatory scrutiny. The rotisserie chicken is one of Costco’s most famous products, selling over 100 million units annually, which means even a small defect rate affects a large number of people.
Documented concerns with Costco’s fresh food line have included contamination events at specific regional distribution facilities, temperature control failures linked to improper food handling at some warehouse locations, and allergen mislabeling disputes on prepared food items.
One particularly watched category involves products sold in Costco’s prepared food and deli sections. These items carry different liability considerations than sealed manufactured goods because handling at the warehouse level plays a larger role.
| Food Product Category | Primary Risk | Case Type Generated |
|---|---|---|
| Rotisserie chicken | Undercooking, salmonella risk at some locations | Individual suits, some class actions |
| Packaged salads | E. coli contamination from supply chain | Class actions, mass tort |
| Fresh seafood | Histamine poisoning, mislabeling | Individual suits |
| Prepared deli items | Cross-contamination, allergen exposure | Individual suits, regulatory complaints |
| Frozen foods | Listeria in manufacturing facility | Recall-based class actions |
Food injury cases move faster when tied to an official outbreak investigation because the government’s own records corroborate the plaintiff’s story.
Costco Kirkland Supplement and Vitamin Lawsuit
Costco Kirkland Signature supplement lawsuits are among the most active and fastest-growing categories of product liability litigation involving the company in 2026. These cases are legally distinct because Kirkland is Costco’s own brand, making the retailer directly responsible as brand owner.
The core allegations in Kirkland supplement cases typically involve three issues: inaccurate labeling of ingredient amounts, presence of undisclosed contaminants including heavy metals like lead and cadmium, and products that do not match their advertised health claims.
Independent laboratory testing by consumer watchdog organizations has repeatedly found discrepancies between what Kirkland supplement labels claim and what is actually in the capsule or tablet. These test results can serve as powerful third-party evidence in litigation.
| Kirkland Supplement Product | Common Allegations | Evidence Type |
|---|---|---|
| Fish oil and omega-3 | Oxidized oil, label inaccuracy | Lab testing, FDA reports |
| Protein powders | Heavy metal contamination, ingredient fraud | Independent lab analysis |
| Multivitamins | Dosage inconsistency, wrong form of nutrient | Lab testing, expert testimony |
| Herbal supplements | Undisclosed ingredients, label fraud | FDA warning letters, lab testing |
| Probiotics | Inaccurate colony counts, contamination | Microbiological testing |
If you suffered health consequences from a Kirkland Signature supplement, the fact that Costco owns the brand is a significant legal advantage in your case.
Key Takeaway: Kirkland Signature supplement lawsuits hold Costco to a higher standard of liability because the company owns the brand, cannot deflect blame to a third-party manufacturer, and must defend the accuracy and safety of every product under that name.
Frequently Asked Questions
Can I sue Costco directly for a defective product even if Costco didn’t make it?
Yes, you can sue Costco directly even if it did not manufacture the product.
In most states, retailers are part of the chain of distribution and can be held strictly liable for defective products they sell.
California, New York, and many other high-population states impose this liability on retailers regardless of their role in creating the defect.
How much money can I get from a Costco product liability lawsuit?
The amount varies significantly based on the severity of your injury and your documented losses.
Minor injury cases have settled for $10,000 to $75,000, while severe injury or wrongful death cases have produced awards exceeding $1 million.
Class action payouts are typically smaller, ranging from $50 to several thousand dollars depending on which tier you qualify for.
What is the deadline to file a Costco product liability lawsuit?
The deadline depends on your state, but most states allow two to three years from the date of your injury.
California gives you two years, Washington and New York give you three years, and Florida recently reduced its limit to two years.
Missing this deadline permanently bars your claim, so acting quickly is important.
Do I need a receipt or proof of purchase to sue Costco for a defective product?
You do not always need a physical receipt, but proof of purchase strengthens your case significantly.
Costco’s membership system tracks purchases by member account, which can serve as documentation in place of a paper receipt.
In class actions, some tiers allow self-certification without a receipt, though the payout for those tiers is typically lower.
What is the difference between joining a class action and filing my own lawsuit against Costco?
A class action combines thousands of similar claims into one case, which lowers individual effort but also limits your individual payout.
Filing your own lawsuit means you can potentially recover far more money, but the process takes more involvement, time, and legal work on your part.
If your injury is severe, an individual lawsuit almost always produces better financial results than joining a class action.
Your Next Step Matters
Costco product liability lawsuits are real, active, and producing real compensation for injured consumers in 2026. Whether your case involves a Kirkland Signature supplement, a recalled household product, or a food contamination incident, the legal path to compensation starts with preserving evidence and acting before your state’s deadline runs out.
Check whether your product has been recalled using the CPSC or FDA databases. Document your injury and save everything related to the product.
If you were harmed by something you bought at Costco, 2026 is the year to find out whether you have a claim worth pursuing
