In legal terminology, a complaint is any formal legal document that sets out the facts and legal reasons (see:
cause of action
A cause of action or right of action, in law, is a set of facts sufficient to justify suing to obtain money or property, or to justify the enforcement of a legal right against another party. The term also refers to the legal theory upon which a ...
) that the
filing party or parties (the
plaintiff
A plaintiff ( Π in legal shorthand) is the party who initiates a lawsuit (also known as an ''action'') before a court. By doing so, the plaintiff seeks a legal remedy. If this search is successful, the court will issue judgment in favor of the ...
(s)) believes are sufficient to support a claim against the party or parties against whom the claim is brought (the
defendant
In court proceedings, a defendant is a person or object who is the party either accused of committing a crime in criminal prosecution or against whom some type of civil relief is being sought in a civil case.
Terminology varies from one juris ...
(s)) that entitles the plaintiff(s) to a
remedy (either
money damages or
injunctive relief). For example, the
Federal Rules of Civil Procedure
The Federal Rules of Civil Procedure (officially abbreviated Fed. R. Civ. P.; colloquially FRCP) govern civil procedure in United States district courts. They are the companion to the Federal Rules of Criminal Procedure. Rules promulgated by the ...
(FRCP) that govern civil litigation in United States courts provide that a civil action is commenced with the filing or service of a pleading called a complaint. Civil court rules in states that have incorporated the Federal Rules of Civil Procedure use the same term for the same pleading.
In Civil Law, a "complaint" is the first formal action taken to officially begin a lawsuit. This written document contains the allegations against the defense, the specific laws violated, the facts that led to the dispute, and any demands made by the plaintiff to restore justice.
In some jurisdictions, specific types of criminal cases may also be commenced by the filing of a complaint, also sometimes called a criminal complaint or felony complaint. Most criminal cases are prosecuted in the name of the governmental authority that promulgates criminal statutes and enforces the
police power of the state with the goal of seeking criminal
sanctions, such as the State (also sometimes called the People) or Crown (in
Commonwealth realm
A Commonwealth realm is a sovereign state in the Commonwealth of Nations that has the same constitutional monarch and head of state as the other realms. The current monarch is King Charles III. Except for the United Kingdom, in each of the re ...
s). In the United States, the complaint is often associated with misdemeanor
criminal charges presented by the prosecutor without the grand jury process. In most U.S. jurisdictions, the charging instrument presented to and authorized by a
grand jury
A grand jury is a jury empowered by law to conduct legal proceedings, investigate potential criminal conduct, and determine whether criminal charges should be brought. A grand jury may subpoena physical evidence or a person to testify. A grand ju ...
is referred to as an
indictment
An indictment ( ) is a formal accusation that a person has committed a crime. In jurisdictions that use the concept of felonies, the most serious criminal offense is a felony; jurisdictions that do not use that concept often use that of an ind ...
.
United States
Every
U.S. state has some forms available on the
web
Web most often refers to:
* Spider web, a silken structure created by the animal
* World Wide Web or the Web, an Internet-based hypertext system
Web, WEB, or the Web may also refer to:
Computing
* WEB, a literate programming system created by ...
for most common complaints for
lawyer
A lawyer is a person who is qualified to offer advice about the law, draft legal documents, or represent individuals in legal matters.
The exact nature of a lawyer's work varies depending on the legal jurisdiction and the legal system, as w ...
s and
self-representing litigants; if a petitioner cannot find an appropriate form in their state, they often can modify a form from another state to fit his or her request. Several
United States federal courts
The federal judiciary of the United States is one of the three branches of the federal government of the United States organized under the Constitution of the United States, United States Constitution and Law of the United States, laws of the fed ...
publish general guidelines for the petitioners and
Civil Rights
Civil and political rights are a class of rights that protect individuals' political freedom, freedom from infringement by governments, social organizations, and private individuals. They ensure one's entitlement to participate in the civil and ...
complaint forms.
After the complaint has been filed with the court, it has to be
properly served to the opposite parties, but usually petitioners are not allowed to serve the complaint personally.
The court also can issue a
summons – an official summary document which the plaintiff needs to have served together with the complaint. The defendants have limited time to respond, depending on the State or Federal rules. A defendant's failure to answer a complaint can result in a
default judgment
Default judgment is a binding judgment in favor of either party based on some failure to take action by the other party. Most often, it is a judgment in favor of a plaintiff when the defendant has not responded to a summons or has failed to app ...
in favor of the petitioner.
For example, in
United States federal courts
The federal judiciary of the United States is one of the three branches of the federal government of the United States organized under the Constitution of the United States, United States Constitution and Law of the United States, laws of the fed ...
, any person who is at least 18 years old and not a
party
A party is a gathering of people who have been invited by a Hospitality, host for the purposes of socializing, conversation, recreation, or as part of a festival or other commemoration or celebration of a special occasion. A party will oft ...
may serve a
summons and complaint in a civil case.
The defendant must submit an
answer within 21 days after being served with the summons and complaint, or request a
waiver
A waiver is the voluntary relinquishment or surrender of some known right or privilege.
A waiver is often written, such as a disclaimer that has been accepted, but it may also be spoken between two or more parties. When the right to hold a ...
, according to
FRCP Rule 12. After the civil complaint has been served to the defendants, the
plaintiff
A plaintiff ( Π in legal shorthand) is the party who initiates a lawsuit (also known as an ''action'') before a court. By doing so, the plaintiff seeks a legal remedy. If this search is successful, the court will issue judgment in favor of the ...
must, as soon as practicable
initiate a conference between the parties to plan for the rest of the
discovery process and then the parties should submit a proposed
discovery plan to the judge within 14 days after the conference.
In many U.S. jurisdictions, a complaint submitted to a court must be accompanied by a
Case Information Statement, which sets forth specific key information about the case and the
lawyer
A lawyer is a person who is qualified to offer advice about the law, draft legal documents, or represent individuals in legal matters.
The exact nature of a lawyer's work varies depending on the legal jurisdiction and the legal system, as w ...
s representing the
parties. This allows the judge to make determinations about which deadlines to set for different phases of the case, as it moves through the court system.
There are also freely accessible
web search engine
A search engine is a software system that provides hyperlinks to web pages, and other relevant information on World Wide Web, the Web in response to a user's web query, query. The user enters a query in a web browser or a mobile app, and the sea ...
s to assist parties in finding court decisions that can be cited in the complaint as an example or analogy to resolve similar questions of law.
Google Scholar
Google Scholar is a freely accessible web search engine that indexes the full text or metadata of Academic publishing, scholarly literature across an array of publishing formats and disciplines. Released in Beta release, beta in November 2004, th ...
is the biggest database of full text state and federal courts decisions that can be accessed without charge. These web search engines often allow one to select specific state courts to search.
Federal courts created the
Public Access to Court Electronic Records (PACER) system to obtain case and
docket information from the
United States district court
The United States district courts are the trial courts of the United States federal judiciary, U.S. federal judiciary. There is one district court for each United States federal judicial district, federal judicial district. Each district cov ...
s,
United States courts of appeals, and
United States bankruptcy court
United States bankruptcy courts are courts created under Article I of the United States Constitution. The current system of bankruptcy courts was created by the United States Congress in 1978, effective April 1, 1984. United States bankruptcy ...
s.
The system is managed by the
Administrative Office of the United States Courts
Administration may refer to:
Management of organizations
* Management, the act of directing people towards accomplishing a goal: the process of dealing with or controlling things or people.
** Administrative assistant, traditionally known as a s ...
; it allows lawyers and self-represented clients to obtain documents entered in the case much faster than regular mail.
Filing and privacy

In addition to
Federal Rules of Civil Procedure
The Federal Rules of Civil Procedure (officially abbreviated Fed. R. Civ. P.; colloquially FRCP) govern civil procedure in United States district courts. They are the companion to the Federal Rules of Criminal Procedure. Rules promulgated by the ...
, many of the
U.S. district courts have developed their own requirements included in Local Rules for filing with the Court. Local Rules can set up a limit on the number of pages, establish deadlines for motions and responses, explain whether it is acceptable to combine a motion petition with a response, specify if a judge needs an additional copy of the documents (called "judge's copy"), etc.
Local Rules can define page layout elements like:
margins
Margin may refer to:
Physical or graphical edges
*Margin (typography), the white space that surrounds the content of a page
*Continental margin, the zone of the ocean floor that separates the thin oceanic crust from thick continental crust
*Leaf ...
, text
font/size, distance between lines, mandatory footer text,
page numbering
Page numbering is the process of applying a sequence of numbers (or letters, or Roman numerals) to the pages of a book or other document. The number itself, which may appear in various places on the page, can be referred to as a page number or as ...
, and provide directions on how the pages need to be bound together – i.e. acceptable
fastener
A fastener (US English) or fastening (UK English) is a hardware device that mechanically joins or affixes two or more objects together. In general, fasteners are used to create non-permanent joints; that is, joints that can be removed or disman ...
s, number and location of
fastening holes, etc.
If the filed motion does not comply with the Local Rules then the judge can choose to
strike the motion completely, or order the party to re-file its motion, or grant a special exception to the Local Rules.
According to
Federal Rules of Civil Procedure
The Federal Rules of Civil Procedure (officially abbreviated Fed. R. Civ. P.; colloquially FRCP) govern civil procedure in United States district courts. They are the companion to the Federal Rules of Criminal Procedure. Rules promulgated by the ...
(FRCP) , sensitive text like
Social Security number
In the United States, a Social Security number (SSN) is a nine-digit number issued to United States nationality law, U.S. citizens, Permanent residence (United States), permanent residents, and temporary (working) residents under section 205(c)(2 ...
,
Taxpayer Identification Number
A Taxpayer Identification Number (TIN) is an identifying number used for tax purposes in the United States and in other countries under the Common Reporting Standard. In the United States it is also known as a Tax Identification Number (TIN) ...
,
birthday
A birthday is the anniversary of the birth of a person or figuratively of an institution. Birthdays of people are celebrated in numerous cultures, often with birthday gifts, birthday cards, a birthday party, or a rite of passage.
Many religion ...
, bank accounts and
children
A child () is a human being between the stages of childbirth, birth and puberty, or between the Development of the human body, developmental period of infancy and puberty. The term may also refer to an unborn human being. In English-speaking ...
's names, should be
redacted from the filings made with the court and accompanying exhibits,
(exhibits normally do not need to be attached to the original complaint, but should be presented to Court after the
discovery
Discovery may refer to:
* Discovery (observation), observing or finding something unknown
* Discovery (fiction), a character's learning something unknown
* Discovery (law), a process in courts of law relating to evidence
Discovery, The Discovery ...
). The redacted text can be erased with black-out or white-out, and the page should have an indication that it was redacted - most often by
stamping word "redacted" on the bottom. Alternately, the filing party may ask the court's permission to file some exhibits completely
under seal. A
minor's name of the petitions should be replaced with
initials.
A person making a redacted filing can file an unredacted copy under seal, or the Court can choose to order later that an additional filing be made under seal without redaction.
Copies of both redacted and unredacted documents filed with court should be provided to the other
parties in the case. Some courts also require that an additional electronic courtesy copy be emailed to the other parties.
Attorney fees
Before filing the complaint, it is important for plaintiff(s) to remember that Federal courts can impose liability for the prevailing party's attorney fees to the losing party, if the judge considers the case
frivolous or for purposes of harassment, even when the case was voluntarily dismissed.
In the case of ''Fox v. Vice'', the U.S. Supreme Court held that reasonable attorneys' fees could be awarded to the defendant under 42 U.S.C. Sec. 1988, but only for costs that the defendant would not have incurred "but for the frivolous claims."
Even when there is no actual trial or judgment, if there is only pre-trial motion practice such as motions to dismiss, attorney fee shifting still can be awarded under
FRCP Rule 11 when the opposing party files a Motion for Sanctions and the court issue an order identifying the sanctioned conduct and the basis for the sanction.
The losing party has a right to appeal any order for sanctions in the higher court.
In the state courts, each party is generally responsible only for its own attorney fees, with certain exceptions.
England and Wales
In 1883, the
Rules of the Supreme Court replaced the term ''complaint'' with ''statement of claim''. This was then replaced in 1998 with ''particulars of claim'' by the
Civil Procedure Rules, which also replaced the word ''plaintiff'' with ''claimant'' as part of a drastic reform of English legal terminology. Thus, in England and Wales, a claimant now initiates a claim by filing a claim form (instead of a writ of summons), and either pleads particulars of claim on the claim form itself or as a separate document.
See also
*
Cause of action
A cause of action or right of action, in law, is a set of facts sufficient to justify suing to obtain money or property, or to justify the enforcement of a legal right against another party. The term also refers to the legal theory upon which a ...
*
Petition
A petition is a request to do something, most commonly addressed to a government official or public entity. Petitions to a deity are a form of prayer called supplication.
In the colloquial sense, a petition is a document addressed to an officia ...
*
Pleading
*
Service of process
Each legal jurisdiction has rules and discrete terminology regarding the appropriate procedures for serving legal documents on a person being sued or subject to legal proceedings. In the U.S. legal system, service of process is the procedure ...
References
External links
{{wiktionary, complaint
Example of a ComplaintSecond Amended Complaint in
Anderson v. Cryovac landmark case
Legal documents
Civil procedure
Civil procedure legal terminology