If someone has filed a lawsuit against you that you believe is false, the first thing to understand is that the court does not know it’s false, and will treat the case as real until you formally respond. You have a short, specific window to file that response: 21 days after service in federal court, and anywhere from 20 to 30 days in state court depending on the jurisdiction. Miss it and you lose automatically. What to do if someone falsely sues you starts with meeting that deadline, bringing in an attorney and your insurance company, and then using the tools the court system gives defendants to end a baseless case and, when possible, make the plaintiff pay for having filed it.
Do Not Ignore It, No Matter How Ridiculous the Claims Are
Failing to respond by the deadline lets the plaintiff ask the court for a default judgment. The clerk or judge grants the plaintiff whatever they asked for, without ever hearing from you.1Legal Information Institute. Federal Rules of Civil Procedure Rule 55 – Default; Default Judgment That judgment is as enforceable as one entered after a full trial. The plaintiff can garnish your wages, freeze and levy your bank accounts, and put a lien on your home. Courts can sometimes set a default aside for “good cause,” but it isn’t guaranteed, and your odds get worse the longer you wait. Treat the lawsuit as urgent even if it reads like fiction.
Call Your Insurance Company Before You Call a Lawyer
Before you worry about paying attorney fees, check your policies. The personal liability portion of a homeowners or renters policy can cover legal defense costs when the lawsuit involves an incident within the policy’s scope. Auto insurance covers defense costs when you’re sued after a car accident. Umbrella liability policies add another layer above those limits. If any of this applies, notify your insurer immediately: they may assign and pay for a defense attorney. Most policies require prompt notice, and waiting can cost you coverage.
Read the Summons and Hire an Attorney Fast
You’ll have been served with two documents. The summons is the court’s official notice and states the exact number of days you have to respond. The complaint lists the plaintiff’s allegations and the legal theories behind them.2Legal Information Institute. Federal Rules of Civil Procedure Rule 4 – Summons Federal cases give you 21 days.3United States Courts. Summons in a Civil Action – Form AO 440 State courts vary. The date printed on your summons is the date that governs your case. Do not assume you have 30 days.
Then find an attorney. Resist the urge to call the plaintiff or their lawyer to argue. Anything you say can be used against you, and nobody has ever been talked out of a lawsuit they just filed. A defense attorney can evaluate whether the claims have any legal basis and map out the fastest route to dismissal.
Preserve Every Shred of Evidence
Start gathering anything that contradicts the plaintiff’s story: emails, texts, voicemails, letters, bank statements, receipts, contracts, photos, video, and the names and contact information for anyone with firsthand knowledge of what actually happened. Keep everything in its original format.
Don’t delete anything. Don’t throw anything out. Don’t “clean up” files. Once litigation begins, both sides have a legal duty to preserve relevant evidence. Destroying it, even accidentally, is called spoliation, and courts can impose sanctions or instruct the jury to assume the lost evidence would have hurt you. If your workplace runs an automatic document-deletion policy, suspend it for anything connected to this case. Your attorney can issue a formal litigation hold.
File Your Answer Carefully
Your formal response is called an Answer. It works through the complaint paragraph by paragraph. For each numbered allegation you must either admit it, deny it, or state that you lack enough information to admit or deny, which the court treats as a denial.4Legal Information Institute. Federal Rules of Civil Procedure Rule 8 – General Rules of Pleading
Here is the trap. Anything you fail to specifically deny is treated as admitted, with the narrow exception of damage amounts.4Legal Information Institute. Federal Rules of Civil Procedure Rule 8 – General Rules of Pleading A vague or incomplete Answer can hand the plaintiff critical facts for free.
Your Answer is also where you raise affirmative defenses, which argue that even if the plaintiff’s facts were true, a separate legal rule means they still lose.5Legal Information Institute. Affirmative Defense Common ones include the statute of limitations, contributory or comparative fault, and failure to mitigate damages. Most affirmative defenses are waived if you don’t raise them in your initial Answer, so don’t save them for later.
Try to End the Case Early
If the complaint is legally defective on its face, you can move to dismiss before fighting about the facts. A motion to dismiss tells the judge that even assuming everything the plaintiff wrote is true, it doesn’t add up to a legal claim. The most common ground is “failure to state a claim.” Others include lack of jurisdiction, improper service, and the statute of limitations.6Legal Information Institute. Federal Rules of Civil Procedure Rule 12 – Defenses and Objections
In many states, a motion to dismiss has to be filed before you file your Answer, and the deadline is often the same. Your attorney needs to evaluate this fast.
Anti-SLAPP Motions for Speech-Based Lawsuits
If the lawsuit is retaliation for something you said or wrote, roughly three dozen states have anti-SLAPP laws that offer a faster path out. “SLAPP” stands for Strategic Lawsuit Against Public Participation. The anti-SLAPP motion forces the plaintiff to show early that their claim has actual merit; if they can’t, the case gets dismissed and the plaintiff usually has to pay your attorney fees. These statutes often come up in defamation cases and disputes over online reviews, public comments, or political speech.
Use Discovery to Expose the Lack of Proof
If the case survives early motions, both sides enter discovery, the formal exchange of evidence and information. This is where fabricated claims tend to collapse, because the plaintiff finally has to produce proof of what they alleged. You get to demand it. The main tools are written questions answered under oath (interrogatories), requests for documents, depositions, and requests for admission.
Both sides also have to make mandatory initial disclosures, including the people with relevant knowledge, supporting documents, and a computation of claimed damages.7Legal Information Institute. Federal Rules of Civil Procedure Rule 26 – Duty to Disclose; General Provisions Governing Discovery A plaintiff with made-up numbers has to put them on paper, backed by nothing.
Move for Summary Judgment When Discovery Ends
After discovery, you often get a second chance to end the case before trial. A motion for summary judgment argues that the evidence is so one-sided that no reasonable jury could find for the plaintiff. The legal standard is no genuine dispute of material fact and entitlement to judgment as a matter of law. For a defendant facing a bogus suit, this is often the decisive moment, because the plaintiff’s failure to produce supporting evidence during discovery becomes dispositive.8Legal Information Institute. Federal Rules of Civil Procedure Rule 56 – Summary Judgment
Ask the Court to Sanction the Plaintiff
Courts have tools to punish people who file baseless cases. Rule 11 of the Federal Rules of Civil Procedure requires every filing to be backed by a reasonable investigation: the legal claims have to be warranted, the factual allegations have to have evidentiary support, and the filing cannot be made for an improper purpose like harassment or running up your costs.9Legal Information Institute. Federal Rules of Civil Procedure Rule 11 – Signing Pleadings, Motions, and Other Papers; Representations to the Court; Sanctions
Your attorney can serve a Rule 11 motion on the plaintiff’s lawyer. There is a built-in 21-day “safe harbor” that lets the other side withdraw the filing. If they don’t, the motion is filed with the court and the judge can order the plaintiff or their attorney to pay your legal costs.9Legal Information Institute. Federal Rules of Civil Procedure Rule 11 – Signing Pleadings, Motions, and Other Papers; Representations to the Court; Sanctions
A separate federal statute, 28 U.S.C. ยง 1927, lets a court order a lawyer who needlessly multiplies proceedings to personally pay the excess costs and attorney fees they caused.10Office of the Law Revision Counsel. 28 USC 1927 – Counsels Liability for Excessive Costs Most state courts have similar mechanisms. These provisions send a message to opposing counsel that filing garbage carries personal consequences.
Can You Sue Them Back?
Yes, but none of the options are easy.
Counterclaims
A counterclaim is a lawsuit you file against the plaintiff within the same case, asserted in your Answer.11Legal Information Institute. Federal Rules of Civil Procedure Rule 13 – Counterclaim and Crossclaim If your claim arises out of the same events as the plaintiff’s suit, you may actually be required to assert it as a counterclaim or risk losing the right to bring it later.
Malicious Prosecution
A malicious prosecution claim targets someone who filed a lawsuit without any reasonable basis and for an improper purpose. You have to prove the case was filed without probable cause, that the plaintiff acted with malice, that the case ended in your favor, and that you suffered damages.12Legal Information Institute. Malicious Prosecution You can’t bring this claim until the original case is over, so you have to endure the full fight first. The bar is deliberately high because courts don’t want to discourage legitimate lawsuits.
Abuse of Process
Abuse of process focuses on misuse of a legitimate legal procedure for an illegitimate purpose, like filing a case to extort a settlement, harass a competitor, or bury you in costs until you fold.13Legal Information Institute. Abuse of Process Unlike malicious prosecution, some jurisdictions let you bring it while the original case is still pending.
Both claims are hard to win because they require proving what was in the plaintiff’s head when they sued. Where the pattern is clear, though, they can recover your defense costs and then some.
Getting Your Attorney Fees Back
The default rule in American courts is that each side pays its own attorney fees regardless of who wins. This is the American Rule. Even a complete victory over a fabricated lawsuit does not automatically reimburse you. The exceptions are the ones that matter:
- Contracts with an attorney fee clause, where the winner of a contract dispute recovers fees under the clause.
- Fee-shifting statutes, often found in consumer protection, civil rights, and employment laws, that let the prevailing party recover fees.
- Bad-faith sanctions, including Rule 11 and the court’s inherent authority, which can shift fees when a filing is frivolous.
- Anti-SLAPP statutes, which typically make fee recovery mandatory for a successful motion.
Have your attorney evaluate which pathway, if any, applies early. A fee-shifting mechanism changes the economics of the case and gives you leverage to push the plaintiff to drop it.
When Settling a False Case Is the Rational Move
Nobody wants to hear this part. Sometimes the smart decision is to settle a lawsuit you know is false. The legal system calls it a “nuisance value” settlement: the plaintiff takes a small payment to go away, and the number is a fraction of what defense would cost. When your projected defense costs are $50,000 and the plaintiff will accept $5,000 to dismiss, the economics point one direction.
Settling has real downsides. It can embolden the same plaintiff, or others, to try the same thing again. It may require a confidentiality clause that prevents you from publicly clearing your name. Depending on the claims, it may affect your insurance premiums or professional reputation even though you did nothing wrong.
Have an honest conversation with your attorney early. A good lawyer won’t tell you to settle on principle or fight on principle; they’ll lay out what each path costs and what each path risks, and let you decide on facts rather than emotion. If you fight, make sure you pursue every sanctions and fee-recovery mechanism available so the plaintiff bears the cost of their own conduct.