Plaintiff vs defendant
One person files the case. The other responds to it. That's the core difference. But understanding what each role actually involves helps you know what to expect when you walk into court.
The plaintiff is the person who files the lawsuit. The defendant is the person being sued.
If someone owes you money and refuses to pay, you become the plaintiff by filing a claim. They become the defendant. The plaintiff goes first in court, carries the burden of proof, and pays the filing fee. The defendant responds, presents their side, and can file a counterclaim if they think you owe them something.
Side-by-side comparison
What each role involves, from filing through the hearing.
Plaintiff
The one who files
Files the lawsuit
The plaintiff initiates the case by filing a complaint with the court
Has the burden of proof
Must prove the claim is more likely true than not (preponderance of evidence)
Presents case first
Opens the hearing, presents evidence, and calls witnesses before the defendant
Seeks a remedy
Usually asking for money, but can also request specific actions or injunctions
Pays the filing fee
Typically $30 to $75 in small claims, $150 to $400 in regular civil court
Chooses the court
Decides whether to file in small claims or regular civil court based on the amount
Defendant
The one who responds
Responds to the lawsuit
Must file an answer or response within a deadline (usually 20 to 30 days)
Can dispute the claims
Presents evidence and arguments to show the plaintiff's claims are wrong
Can file a counterclaim
If the defendant believes the plaintiff owes them money, they can counter-sue
Can request dismissal
If the case lacks merit, the defendant can ask the court to throw it out
Must be properly served
Has the right to be officially notified about the lawsuit before it proceeds
Can settle at any time
Can offer to pay or negotiate a settlement before the hearing date
Real examples of plaintiff vs defendant
These are the kinds of cases that go through small claims court every day.
Your landlord kept your $2,000 security deposit
You file a claim for the deposit plus any penalties your state allows
A contractor took $5,000 and never finished the job
You file for the amount paid minus the value of any work completed
A company charged your credit card after you cancelled
You file for the unauthorized charges and any related bank fees
Your ex-roommate won't pay their half of the rent they owe
You file for the unpaid portion plus any late fees you covered
How the process works for each side
If you're the plaintiff
Send a demand letter (gives them a chance to pay without court)
File your claim at the courthouse or online
Pay the filing fee ($30 to $75 in small claims)
Serve the defendant with court papers
Gather your evidence and organize it by date
Present your case first at the hearing
Wait for the judge's decision (usually same day)
If you're the defendant
Receive the court papers (you have a deadline to respond)
Read the complaint carefully and identify what's wrong
File your response (called an 'answer') with the court
Decide if you want to file a counterclaim
Gather your own evidence to dispute the plaintiff's claims
Present your defense after the plaintiff finishes
Consider settling if the plaintiff has strong evidence
Ready to file as the plaintiff?
PettyLawsuit drafts your demand letter, looks up the defendant's registered agent, and generates the right court forms for your state. Start to finish in about 10 minutes.
Common questions about plaintiffs and defendants
Straight answers about how these roles work in civil and small claims court
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Frequently asked questions
What is a plaintiff?
A plaintiff is the person or entity that starts a lawsuit. They're the one who believes they've been wronged and files a complaint with the court asking for a remedy, usually money. In small claims court, the plaintiff is almost always an individual person filing against a company, landlord, contractor, or someone who owes them money. The plaintiff presents their case first and carries the burden of proof.
What is a defendant?
A defendant is the person or entity being sued. They receive notice of the lawsuit and must respond to the plaintiff's claims. The defendant can deny the allegations, present their own evidence, or file a counterclaim if they believe the plaintiff actually owes them money. In small claims court, if the defendant doesn't show up, the plaintiff usually wins by default.
Can a defendant become a plaintiff?
Yes. When a defendant files a counterclaim, they become both a defendant on the original claim and a plaintiff on their counterclaim. This happens more often than you'd think. For example, if you sue your landlord for your security deposit and the landlord claims you caused $3,000 in damage, the landlord becomes a counter-plaintiff. Both claims get heard at the same hearing.
Who has the burden of proof in a civil case?
The plaintiff carries the burden of proof. In civil cases (including small claims), the standard is 'preponderance of evidence,' which means you need to show it's more likely than not that your version of events is true. That's a much lower bar than criminal cases, which require proof 'beyond a reasonable doubt.' Practically speaking, if you have a contract, receipts, and text messages backing up your claim, you've probably met the standard.
What happens if the defendant doesn't show up to court?
The plaintiff wins by default in most cases. This is called a 'default judgment.' The court awards the plaintiff what they asked for without hearing the defendant's side. Defendants who don't show up can sometimes get the judgment overturned if they have a valid reason for missing court (medical emergency, never being properly served), but it's an uphill battle. Around 30% to 40% of small claims defendants don't show up.
Do I need a lawyer as a plaintiff or defendant in small claims court?
No. Small claims court is specifically designed for people to represent themselves. In some states, lawyers are actually prohibited from appearing. Both plaintiffs and defendants present their own cases, and judges ask questions to fill in gaps. The process is informal compared to regular civil court. That said, knowing the law that applies to your case gives you a real advantage, which is where tools like PettyLawsuit help.
Can a company be a plaintiff?
Yes. Companies sue individuals and other companies all the time. A common example: a business sues a customer for an unpaid invoice. In small claims court, the company sends a representative (usually an employee or owner) to present the case. The same rules apply regardless of whether the plaintiff is a person or a business.
What's the difference between a plaintiff and a complainant?
In civil court, they mean the same thing. The terms are interchangeable. In criminal cases, the distinction matters more: the complainant reports the crime, but the government (prosecution) becomes the plaintiff. In small claims and civil court, if you're the one filing the case, you're the plaintiff, the complainant, and the petitioner, depending on which court you're in. Don't worry about the terminology. Courts use all three.