There are a few things consumers should know about how to file a class action lawsuit. In order to start a class action of any kind, a person must have a cause of action that is shared by a significant number of others. The class action lawsuit is based on the old principle of strength in numbers and allows a large number of plaintiffs to bring legal action against a powerful defendant when individual lawsuits are not practical.
That said, the entire process begins with a single plaintiff or a small group (two to three) individuals who have suffered the same harm by the defendant.
Who Is Eligible to File a Class Action Lawsuit?
Virtually anyone with a valid cause of action can start a class action lawsuit, provided they meet certain qualifications. Primarily, this means the one who files must demonstrate a number of things, which are defined under Federal Rule of Civil Procedure Number 23:
- Adequacy — Is/are the lead plaintiff(s) able to represent the class in a fair and adequate manner?
- Ascertainability — In other words, can all potential plaintiffs be identified?
- Numerosity — Are there enough plaintiffs to justify granting class status?
- Commonality — Do all plaintiffs have the same cause of action?
- Typicality — Is/are the class representative(s) typical of the other class members?
In addition to the above, the lead plaintiff(s) must prove the cause of action is serious enough to warrant the court’s involvement. Furthermore, the class representative(s) must be able to answer affirmatively to at least one of three questions raised under Rule Number 23(b):
- would filing separate, individual lawsuits create a risk of inconsistent verdicts?
- would a court order (injunctive or declarative relief without the involvement of a jury) be appropriate in light of the cause of action as it relates to all class members?
- are there common questions of law that would make a class action preferable to individual lawsuits?
Any injured party who can meet the above requirements is eligible to start a class action lawsuit.
How Many Plaintiffs Are Required to File a Class Action Lawsuit?
What Happens After a Class Action Has Been Filed?
Once the papers have been filed, the case goes before a judge, who will review the complaint and determine whether there is a sufficient number of plaintiffs with the same cause of action as well as other factors. If the judge determines that the case has merit and there are enough qualified petitioners, s/he will allow the case to move forward.
Are There Financial Incentives for a Lead Plaintiff?
As noted earlier, the lead plaintiff is entitled to extra compensation for working closely with the attorney(s), attending all court proceedings and generally representing the other class members before the judge and jury.
How Much Does It Cost to File a Class Action Lawsuit?
Typically, there are no up-front costs to start a class action lawsuit. Once they have determined that the case is strong enough, lawyers who specialize in this type of litigation represent the class on a contingency bases, meaning they front all initial costs of filing and moving the case forward.
If the case ends in a settlement or a verdict in favor of the plaintiffs, the lawyer(s) take a percentage of the judgment (generally one-third). It is a risk for them as well as the lead plaintiff(s), because if the defense prevails, they receive nothing.
What If Some Class Members’ Complaints are Different?
If all plaintiffs’ cases are not identical, this is not necessarily a deal breaker. Such a situation is covered under Federal Rule of Civil Procedure Number 23(c)(4), which allows for the establishment of “subclasses.” Forming subclasses is appropriate under the following circumstances:
- Some class members are seeking different relief than others — for example, some plaintiffs want the defendant to pay for health monitoring, while others are seeking monetary compensation
- Some groups among the class members have slightly different, but related facts
- There are groups from different jurisdictions with varying rules of evidence
While a class action can be sustained with a few subclasses, too many may result in a decision by the court to deny class certification on grounds that “common questions [of law] do not predominate.”
How Long Does It Take to Resolve a Class Action?
There is no good answer to this question. While some class action lawsuits can be resolved in a few months, many of them go on for two years or more. It all depends on the strength of the claim, preponderance of evidence and the complexity of the case.
Ideally, lawyers on both sides will be able to negotiate a satisfactory settlement before the case goes to trial; this is considered the best outcome in most cases. The only drawback is that typically, when a defendant agrees to a settlement, they are not required to admit any liability or wrongdoing.
What Is the Difference Between a Class Action and Multidistrict Litigation?
While both involve multiple plaintiffs, the parties in a class action are legally considered to be a single plaintiff. In multidistrict litigation (MDL), plaintiffs share judicial resources and pre-trial procedures (such as discovery, expert testimony, etc.), but retain their individual lawsuits.
What Does a Person Need Before Approaching an Attorney?
Most lawyers and firms specializing in class action litigation offer free initial consultations, either in person, online or over the telephone. During this session, the lawyer will want to make certain that the claim is a valid one, as cases deemed to be frivolous tend to be dismissed quickly.
One should be prepared to provide documentation of the complaint (such as photos, receipts, etc.) before they start a class action lawsuit. The lawyer will then research similar past cases and attempt to learn whether or not any laws have been broken, and how many other people have been affected by the same kinds of issues.
Class action lawsuits can be filed in myriad areas, including civil rights, defective products, medical problems, false claims and more.
156 thoughts onHow Do I Start a Class Action Lawsuit Against a Company?
I would like to start a class action lawsuit against General Motors in regards to a defective engine in a 2015 Cadillac Escalade ESV I previously owned. The experience was very hard, I bought it used and it immediately failed to operate after less than 2 weeks. I had to wait 18 months to drive it (after spending over $1,000 of my own money on parts and labor), along with the emotional stress and every inconvenience you can think of. I have a family of 6, so imagine putting your family of 6 inside a 2011 Lincoln MKZ for 18 months?
I would like to start a class action lawsuit against my employer, instacart. They have you sitting in grociery parking lots for hours upon hours with no pay unless you’re lucky enough to get orders. I’ve been doing this for 3 years now and it has only gotten worse. Batch pay keeps going down, tips keep going down, and orders are fewer and farther between. But gas prices just keep going up. Seems wrong. What canbi do?
A few years ago I had a mental breakdown. My local hospital was full and had no room for me so the hospital referred me to another hospital 100 miles away from me. A armed driver picked me up, (should have been my first clue) upon arrival I was told that I would have to disrobe so they can conduct a strip search. The problem is that it was a man. I asked if there was a female available and she said no. I was embarrassed and totally humiliated. The short time I was there I was bullied staff and berated. I have requested medical records and they’re on the way. I’m not the only patient at this establishment who had experienced this kind of treatment. Please help. I don’t know where else to turn.
Thank you, Roxanne 3/20/25
I am not sure if my claim is even worthy but I’m going to post anyway. I purchased a cell phone with a plan through Total Wireless. I also paid for the overnight shipment. The phone was for my granddaughter so I didn’t want anything expensive. $87.94 was immediately deducted from my account. Purchased March 3, 2025 it is now the 8th and still no phone. Now I’ve called several with one call lasting more than an hour. I’ve asked for a refund but was told “if” the phone is delivered I can refuse it from UPS and in 30 days I’ll get a refund. Now I paid for product, paid for time shipment and gotten the run around on why it’s still sitting at fulfilment center. And the fact they knowingly knew of delays weeks prior but never disclosed that on website or during first and second call. And the fact that online is still claiming overnight delivery…