Can a Plaintiff File a Motion for Summary Judgment?

Yes. A plaintiff can file a motion for summary judgment. Federal Rule of Civil Procedure 56 says “a party” may move for summary judgment, and that language is deliberate: the tool is not reserved for defendants. A plaintiff files one when discovery has produced evidence so one-sided that no reasonable jury could rule against them, and the court can enter judgment without a trial. Winning the motion, though, requires meeting a demanding legal standard, supporting every factual assertion with admissible evidence, and hitting procedural deadlines that vary from court to court.¹

When It Makes Sense for a Plaintiff to File

Being allowed to file is not the same as being wise to file. The motion works best when the material facts genuinely are not in dispute. Think of a breach of contract case where the signed agreement and payment records tell the whole story. In that situation, summary judgment saves months of trial preparation and removes the unpredictability of a jury.

When facts are actually contested, the motion tends to hurt. Drafting one forces you to lay out the facts and witnesses you consider most important, which gives the defense a roadmap they would not otherwise have. A denied motion can also swing settlement leverage the wrong way: the defendant’s confidence goes up, yours goes down.

Two honest questions before you draft. Do you deserve to win on the undisputed facts? Is this judge likely to agree? If either answer is no, reconsider. If the answer is yes on some claims but not others, a motion for partial summary judgment can narrow the case for trial without overreaching. Plaintiffs often underuse this option. Knocking out a defense, or establishing liability and leaving only damages for the jury, is a real win even when the whole case cannot be resolved on paper.

The Legal Standard You Have to Meet

Rule 56(a) requires the court to grant summary judgment if the movant “shows that there is no genuine dispute as to any material fact and the movant is entitled to judgment as a matter of law.”¹ Two words in that sentence do most of the work. A fact is “material” if it could change the outcome under the governing law. A dispute is “genuine” if the evidence is strong enough that a reasonable jury could side with the opposing party.

The Supreme Court’s 1986 trilogy still controls how courts apply that standard. In Anderson v. Liberty Lobby, Inc., the Court said a judge at this stage does not weigh evidence or decide who is telling the truth. The question is whether the evidence presents enough of a disagreement to send the case to a jury; if it is “so one-sided that one party must prevail as a matter of law,” summary judgment is appropriate. A “mere scintilla” of contrary evidence is not enough to defeat the motion.²

In Celotex Corp. v. Catrett, the Court held that when the non-moving party will bear the burden of proof at trial, a complete failure to produce evidence on an essential element makes everything else beside the point. The movant does not have to disprove the opponent’s case, only show the opponent lacks evidence on a critical element.³ And in Matsushita Electric Industrial Co. v. Zenith Radio Corp., the Court added that when a plaintiff’s theory of the case is economically implausible, more persuasive evidence than usual is needed to survive summary judgment.⁴

Burden of Proof as the Moving Party

As the plaintiff moving for summary judgment, you carry the initial burden. That means walking through each element of your claim and pointing to specific evidence in the record — deposition testimony, documents, admissions — that establishes each element without contradiction.¹

Clear that bar and the burden shifts. The defendant then has to come forward with specific evidence showing a genuine dispute on at least one material fact. They cannot rest on the allegations in their pleadings. Throughout the analysis, the court views all evidence in the light most favorable to the non-moving party and draws reasonable inferences in their favor.² That built-in tilt is why a plaintiff’s evidence has to be genuinely strong, not merely better than the other side’s.

Evidence You Can Rely On

Rule 56(c) lists the materials you can use: depositions, documents, electronically stored information, affidavits or declarations, stipulations, admissions, and interrogatory answers.¹ Every factual assertion needs a citation to specific materials in the record, with page or paragraph numbers precise enough to tell the court exactly where to look.

Everything you submit must be in admissible form or capable of being presented in admissible form at trial. Documents generally need authentication, which usually means attaching them to an affidavit from someone with personal knowledge. An affidavit from your attorney often will not do the job, because counsel typically lacks the firsthand knowledge to authenticate business records or contracts. Unauthenticated documents can be disregarded entirely.

One doctrine to keep in mind on the defense side: if the opposing party tries to defeat your motion by submitting an affidavit that flatly contradicts their own earlier deposition testimony, courts may strike it under the “sham affidavit” doctrine. Federal courts apply it sparingly, typically only when the deposition answers were clear and unambiguous and the later affidavit offers no plausible explanation for the change.

Procedural Steps and Deadlines

Rule 56(b) sets a default: you can file up to 30 days after the close of all discovery.¹ Local rules and the judge’s scheduling order routinely override that default, sometimes with an earlier cutoff, sometimes with a required pre-motion conference. Check the scheduling order first; a missed deadline can mean the court refuses to consider the motion at all.

The motion itself has several pieces: the motion document stating what you are asking for, a memorandum of law laying out your argument, and supporting evidence with proper citations. Many federal districts also require a separate statement of undisputed material facts, a numbered list of each fact you say is not genuinely disputed, with a record citation for each one. This document carries more weight than lawyers initially expect. Properly supported facts that the opposing party fails to specifically controvert can be treated as admitted.

Once your papers are ready, file with the court and serve copies on all parties. State courts follow their own procedural rules, and deadlines, required documents, and formatting can differ significantly. Always check the local requirements before you start drafting.

How the Defendant Can Push Back

The defendant typically responds with a brief in opposition and a competing statement of facts identifying disputes. They need to do more than call the facts complicated. They must point to specific evidence in the record that creates a genuine question for a jury. Vague assertions and unsupported pleadings will not survive.

If the defendant fails to properly address a fact you asserted, Rule 56(e) gives the court several options: give them another chance to respond, treat the fact as undisputed, grant summary judgment if the undisputed facts support it, or issue any other appropriate order.¹ Courts often warn before treating an unaddressed fact as conceded, but do not count on that.

The defendant can also invoke Rule 56(d) as a safety valve. By filing an affidavit or declaration explaining why they cannot yet present essential facts, they can ask the court to defer ruling, allow additional discovery, or issue other relief.¹ The affidavit must be specific: what facts are unavailable, why they cannot be presented now, what has been done to obtain them, and how more time would help. A conclusory “we need more discovery” will not work.

What the Court Can Rule

The judge is not deciding who is right. The judge is deciding whether anything remains to be argued. Credibility calls and evidence weighing are for the jury.² After reviewing the motion and response, the court can:

Grant the motion in full, finding no genuine dispute on any material fact and entering judgment for the plaintiff without a trial.
Deny the motion, finding that genuine disputes exist and sending the case to trial on all claims.
Grant partial summary judgment, resolving some issues or claims while leaving others for trial. Under Rule 56(g), the court can also identify specific facts as not genuinely disputed and treat them as established for the rest of the case, even without granting the full motion.¹
Defer ruling, typically because additional discovery is needed under Rule 56(d).

Sanctions and What Happens on Appeal

Filing carries accountability. Under Rule 56(h), if the court finds an affidavit or declaration was submitted in bad faith or solely to cause delay, it can order the filing party to pay the other side’s reasonable expenses, including attorney’s fees, and may hold the party or attorney in contempt.¹ Rule 11 adds another layer: signing and filing a motion certifies that it is not for an improper purpose, that the legal arguments are grounded in existing law or a good-faith argument to change it, and that the factual claims have evidentiary support.⁵ Rule 11 includes a 21-day safe harbor, giving the filer a chance to withdraw a problematic filing before sanctions reach the court.

If the court grants summary judgment in full, that is a final judgment, and the losing side can appeal immediately, arguing the trial court misapplied the standard or that genuine factual disputes existed. Denial is different. It is an interlocutory order, generally not immediately appealable, so a defendant who loses the motion has to wait until after trial to raise the issue on appeal. Narrow exceptions exist, but in most cases a denied motion simply means the case heads to trial. That is not a disaster. Plenty of plaintiffs win convincingly at trial after being denied on summary judgment; the denial only means the court found enough factual dispute to send the case to a jury.

1
Legal Information Institute. Federal Rules of Civil Procedure Rule 56 – Summary Judgment
2
Justia U.S. Supreme Court Center. Anderson v. Liberty Lobby, Inc., 477 U.S. 242 (1986)
3
Justia U.S. Supreme Court Center. Celotex Corp. v. Catrett, 477 U.S. 317 (1986)
4
Justia U.S. Supreme Court Center. Matsushita Electric Industrial Co., Ltd. v. Zenith Radio Corp., 475 U.S. 574 (1986)
5
Legal Information Institute. Federal Rules of Civil Procedure Rule 11 – Signing Pleadings, Motions, and Other Papers; Representations to the Court; Sanctions