A statement of claim is the document a plaintiff files to officially start a civil lawsuit. In federal court and many state courts it is called a complaint, and it does three jobs at once: it names the parties, explains what happened and why the defendant is legally responsible, and tells the court what the plaintiff wants done about it.1Office of the Law Revision Counsel. Federal Rules of Civil Procedure Rule 8 – General Rules of Pleading Everything that follows in the lawsuit is measured against this document, so getting it right matters.
What the Document Must Contain
A legally sufficient complaint has four core pieces. It identifies the parties, naming each plaintiff and each defendant. It states the facts in a plain, concise account of what happened, when, and how the plaintiff was harmed. It sets out the legal theories, often called causes of action, that connect those facts to the defendant’s responsibility; common examples include breach of contract, negligence, and fraud, and each cause of action is usually laid out in its own section. And it requests specific relief, whether that is money damages, a court order requiring the defendant to do or stop doing something (an injunction), or another remedy the court has power to grant.1Office of the Law Revision Counsel. Federal Rules of Civil Procedure Rule 8 – General Rules of Pleading
The complaint also has to explain why the chosen court has authority over the dispute. In federal court, that usually means showing either that the case involves a federal law or that the parties are from different states and the amount at stake exceeds $75,000.2Office of the Law Revision Counsel. 28 U.S. Code 1332 – Diversity of Citizenship, Amount in Controversy, Costs State courts have their own jurisdictional rules, but every complaint needs to address this threshold up front.
Where and How to File
The lawsuit officially begins the moment the complaint is filed with the court clerk. The plaintiff delivers the document to the clerk’s office, pays a filing fee, and the clerk stamps it. From that moment, the case exists in the court system.3United States District Court. Civil Case Flowchart Filing fees vary with the court and type of case. Federal district courts charge a standard fee; state court fees range from under $100 for small claims to several hundred dollars for higher-value civil actions.
Choosing the right court matters as much as drafting the complaint. Federal law allows a civil lawsuit in a district where any defendant lives, if all defendants are in the same state, or in a district where the key events giving rise to the claim took place.4Office of the Law Revision Counsel. 28 U.S. Code 1391 – Venue Generally State courts follow similar logic, generally pointing to the county where the defendant lives or where the dispute arose. Filing in the wrong court will not necessarily kill a case, but a successful venue challenge from the defendant can mean costly delays.
Serving the Defendant
Filing is only half the job. The defendant also has to be formally notified, a step called service of process. The clerk issues a summons, a court-stamped notice telling the defendant that a lawsuit has been filed and a response is required, and that summons must be delivered along with a copy of the complaint.5Legal Information Institute. Federal Rules of Civil Procedure Rule 4 – Summons
Federal rules recognize several ways to serve an individual defendant: personal delivery of the summons and complaint; leaving copies at the defendant’s home with someone of suitable age who lives there; or delivery to an agent authorized to accept legal papers on the defendant’s behalf. Federal rules also allow service by any method the state where the court sits permits.5Legal Information Institute. Federal Rules of Civil Procedure Rule 4 – Summons
In federal court, the plaintiff has 90 days after filing the complaint to complete service. Missing that deadline can result in dismissal of the case.6United States District Court. Service of Process Most plaintiffs hire a professional process server or use a sheriff’s office, which typically costs between $20 and $100.
How the Defendant Responds
Once served, the defendant is on the clock. In federal court, the deadline to respond is 21 days after being served with the summons and complaint.7Legal Information Institute. Federal Rules of Civil Procedure Rule 12 – Defenses and Objections, When and How Presented If the defendant agreed to waive formal service, a cost-saving option under Rule 4, the response window extends to 60 days from the date the waiver request was sent.5Legal Information Institute. Federal Rules of Civil Procedure Rule 4 – Summons State courts set their own deadlines, with most falling between 20 and 30 days.
A defendant generally has three choices. The most common is to file an answer, going through the complaint paragraph by paragraph, admitting, denying, or claiming insufficient information for each allegation; the answer may also raise affirmative defenses, which are legal reasons the defendant should not be held liable even if the plaintiff’s facts are true. The defendant may also file a counterclaim, asserting their own claims against the plaintiff in the same lawsuit.8United States District Court for the Northern District of Illinois. Federal Rules of Civil Procedure Rule 13 – Counterclaim and Cross-Claim Or, instead of answering, the defendant can file a motion to dismiss, arguing the complaint should be thrown out entirely. The most common ground is that the complaint fails to state a valid legal claim even if every factual allegation is true; other grounds include lack of jurisdiction, improper venue, or insufficient service.7Legal Information Institute. Federal Rules of Civil Procedure Rule 12 – Defenses and Objections, When and How Presented
If the Defendant Does Nothing
Ignoring a lawsuit does not make it go away. When a defendant misses the response deadline, the plaintiff can ask the court clerk to note the default on the record and then seek a default judgment, which is essentially a win without a trial.9Office of the Law Revision Counsel. Federal Rules of Civil Procedure Rule 55 – Default The summons itself warns the defendant of this consequence.5Legal Information Institute. Federal Rules of Civil Procedure Rule 4 – Summons Default judgments are not always automatic. A judge may need to decide the right amount of damages, and courts can set aside a default when the defendant shows good cause for missing the deadline.
Amending the Complaint After Filing
Complaints rarely survive first contact with litigation unchanged. Federal rules give the plaintiff a window to fix the document without asking anyone’s permission: within 21 days after serving the complaint, or within 21 days after the defendant files a response or a motion to dismiss, whichever comes first, the plaintiff can amend once as a matter of course.10Legal Information Institute. Federal Rules of Civil Procedure Rule 15 – Amended and Supplemental Pleadings
After that early window closes, the plaintiff needs either the defendant’s written consent or the court’s permission. Courts are generally willing to allow amendments when doing so serves the interests of fairness and the defendant will not be unfairly disadvantaged.10Legal Information Institute. Federal Rules of Civil Procedure Rule 15 – Amended and Supplemental Pleadings Courts tend to be more receptive early in the case than on the eve of trial. Typical reasons to amend include adding a new defendant, correcting factual errors, or introducing a legal theory that was not in the original. When the court grants permission, the amended complaint replaces the original and the defendant gets a chance to respond to the new version.
Watch the Filing Deadline
Every civil claim has a filing deadline called a statute of limitations. Miss it, and the court will almost certainly dismiss the case regardless of how strong it is. These deadlines vary by state and by claim. Personal injury cases typically carry a two- to three-year window in most states. Breach of contract claims generally allow longer, often four to six years, and written contracts tend to have longer deadlines than oral ones; a few states allow as long as ten or even fifteen years for written contract disputes.
The clock usually starts on the date the harm occurs, but there are exceptions. In fraud cases, many states begin the countdown from the date the plaintiff discovered or should have discovered the fraud. Courts also have limited authority to pause the clock, for instance when the defendant is out of state or the plaintiff is a minor. These tolling rules are highly jurisdiction-specific, so getting legal advice early matters more here than almost anywhere else in the process. A claim that looks well within the deadline in one state may already be time-barred in another.