Discovery sanctions are penalties a court imposes when a party (or its lawyer) fails to meet the rules for exchanging information before trial. They run from paying the other side’s attorney’s fees to losing the right to use certain evidence, and in serious cases to dismissal of the lawsuit or entry of default judgment. Federal Rule of Civil Procedure 37 is the main engine, backed by Rule 26(g)’s certification requirements and the court’s inherent authority to police misconduct that threatens the integrity of the proceedings.1Legal Information Institute. Federal Rules of Civil Procedure Rule 372Legal Information Institute. Federal Rules of Civil Procedure Rule 26 The exposure runs both directions: a party who violates the rules can lose the case, and a party who files a weak sanctions motion can end up paying the other side’s fees for having to defend against it.
What Triggers Discovery Sanctions
Sanctions follow identifiable categories of misconduct. Courts weigh each one against the party’s intent and the harm caused to the other side.
Ignoring Discovery Entirely
The clearest trigger is doing nothing. Not appearing for a properly noticed deposition, not answering interrogatories, not producing documents requested under Rule 34. Complete silence is treated the same as active resistance, and the court can impose the full range of sanctions without first requiring a motion to compel.1Legal Information Institute. Federal Rules of Civil Procedure Rule 37
Evasive or Incomplete Answers
Half-answers count as no answers. Rule 37 states that an evasive or incomplete disclosure, answer, or response is treated as a failure to disclose, answer, or respond.1Legal Information Institute. Federal Rules of Civil Procedure Rule 37 That closes the door on parties who technically respond while burying the ball: vague generalities to interrogatories, dumping thousands of irrelevant documents to hide the relevant ones, boilerplate objections that never engage with the substance of the request.
Skipped or Unsupplemented Disclosures
Federal rules require parties to hand over certain categories of information at the outset without waiting to be asked, and to supplement those disclosures as new information turns up. Skip a required disclosure or fail to supplement it, and the penalty is automatic: the undisclosed information or witness cannot be used on a motion, at a hearing, or at trial. No sanctions motion is needed. The exclusion is self-executing unless the failure was substantially justified or harmless.1Legal Information Institute. Federal Rules of Civil Procedure Rule 37 Cases are quietly won and lost here, because a party that sat on a key document may find the evidence locked out when it matters most.
Destroying or Losing Evidence
Spoliation, meaning destroying, altering, or failing to preserve relevant evidence, draws some of the harshest consequences available. The duty to preserve begins when litigation is reasonably anticipated, not when a complaint is filed. Deleting emails, shredding documents, or wiping hard drives after that point puts a party at serious risk.
For electronically stored information, Rule 37(e) creates two tiers. If a party failed to take reasonable steps to preserve information and it can’t be restored or replaced through other discovery, the court may order measures no greater than necessary to cure the prejudice. The severe sanctions, meaning an adverse-inference instruction telling the jury to presume the lost information was unfavorable, or outright dismissal or default judgment, require a finding that the party acted with intent to deprive the other side of the information’s use.1Legal Information Institute. Federal Rules of Civil Procedure Rule 37 Negligent loss and deliberate destruction lead to very different outcomes.
Improper Certifications
Every discovery request, response, and objection has to be signed, and the signature certifies the document is consistent with the rules, is not filed for an improper purpose, and is not unreasonable or unduly burdensome. If a court finds the certification was made without substantial justification, it must impose an appropriate sanction on the signer, the party, or both. The court has no discretion to let this one slide once a violation is found.2Legal Information Institute. Federal Rules of Civil Procedure Rule 26
What Sanctions a Court Can Impose
Courts work from a sliding scale. The stated goal is the least severe sanction that will remedy the harm and deter future violations, but “least severe” still leaves judges considerable room.
Paying the Other Side’s Fees
The most common penalty is an order requiring the noncompliant party, its attorney, or both to pay the reasonable expenses the other side incurred because of the misconduct, including attorney’s fees. Rule 37 makes these awards mandatory in most situations: after a successful motion to compel, after disobedience of a court order, and after a party fails to attend a deposition or respond to written discovery. The only escape is showing the noncompliance was substantially justified or that an award would be unjust.1Legal Information Institute. Federal Rules of Civil Procedure Rule 37
The amounts vary widely with the attorney time the violation consumed. A simple motion to compel in a straightforward dispute might generate a few thousand dollars in fees. Extended battles over document production in complex commercial cases can produce awards in the tens or hundreds of thousands.
Issue Sanctions and Evidence Exclusion
When money alone won’t fix the problem, courts escalate. Issue sanctions treat specific facts as established for the rest of the case, as the opposing party claims them. If a party refused to produce financial records, the court might rule that the financial figures the other side alleges are taken as true.
Evidence exclusion works from the opposite direction. Instead of adopting the opposing party’s version, it bars the noncompliant party from using certain documents, testimony, or witnesses at trial. A company that hid a damaging internal report during discovery might be prohibited from introducing that report, or any testimony about its contents, even if the report would otherwise help its case.1Legal Information Institute. Federal Rules of Civil Procedure Rule 37
Ending the Case
At the far end sit sanctions that resolve the lawsuit: striking pleadings, dismissing the action, or entering default judgment against the noncompliant party. These are reserved for willful misconduct, bad faith, or a pattern of deliberate obstruction so severe that lesser penalties can’t remedy the harm.1Legal Information Institute. Federal Rules of Civil Procedure Rule 37 Judges don’t reach for dismissal or default lightly, and appellate courts scrutinize these orders more closely than lesser sanctions. A trial judge who jumps straight to case-ending relief without considering less drastic alternatives is likely to be reversed.
Contempt
A court can also treat disobedience of a discovery order as contempt, which carries its own fines and, in extreme cases, imprisonment. For non-parties who ignore subpoenas, contempt is the primary enforcement tool, because Rule 37’s party-focused sanctions don’t reach someone who isn’t a litigant. Under Rule 45, a person who fails to obey a subpoena without adequate excuse can be held in contempt by the court where compliance was required.3Legal Information Institute. Federal Rules of Civil Procedure Rule 45
When the Lawyer Pays Instead of the Client
Sanctions don’t always land on the client. Rule 37 repeatedly names “the party or attorney advising that party, or both” as potentially liable for reasonable expenses and fees. When the lawyer is the one who directed the noncompliant conduct, such as instructing a client not to answer deposition questions, filing frivolous objections, or failing to put a litigation hold in place, the court can order the attorney to pay personally.1Legal Information Institute. Federal Rules of Civil Procedure Rule 37
A separate federal statute, 28 U.S.C. § 1927, goes further. It allows courts to require any attorney who unreasonably and vexatiously multiplies proceedings to personally satisfy the excess costs, expenses, and attorney’s fees that conduct caused.4Office of the Law Revision Counsel. 28 US Code 1927 – Counsels Liability for Excessive Costs The statute reaches beyond discovery, but it comes up regularly when a lawyer wages a scorched-earth discovery campaign that inflates costs on both sides.
How a Sanctions Motion Works
Getting a court to impose sanctions is itself a procedural exercise with specific requirements. Skip a step and the motion fails no matter how egregious the other side’s conduct was.
Try to Resolve It First
Before filing any discovery motion, the moving party has to certify a good-faith attempt to resolve the dispute without court involvement. That usually means phone calls, emails, or letters to opposing counsel spelling out the deficiency and asking for compliance. Courts take this requirement seriously. Filing a motion to compel without a genuine attempt to work things out first is a reliable way to have the motion denied and be ordered to pay the other side’s fees for opposing it.1Legal Information Institute. Federal Rules of Civil Procedure Rule 37
Filing and Timing
If informal efforts fail, the injured party files a motion identifying the discovery obligation violated, the rule or court order at issue, and the sanction requested. Rule 37 sets no fixed deadline for filing, so there is no 30-day clock. But waiting too long can undercut the motion and lead a court to question how serious the prejudice really was. Local rules and scheduling orders often impose their own timelines, so checking the specific court’s requirements is essential.
The opposing party responds, and the court reviews both sides’ submissions with any supporting evidence. In straightforward disputes the judge may rule on the papers. Complex situations, particularly those involving allegations of bad faith or requests for case-dispositive sanctions, often warrant a hearing.
The Risk of Filing
Sanctions motions cut both ways. If the motion is denied, the court can require the party who filed it (or the attorney who advised filing it) to pay the opposing side’s reasonable expenses in fighting the motion, including attorney’s fees. The only protection is showing the motion was substantially justified or that an award would be unjust.1Legal Information Institute. Federal Rules of Civil Procedure Rule 37 When a motion is granted in part and denied in part, the court can split costs between the parties. The two-way fee-shifting discourages both discovery abuse and frivolous sanctions filings.
Appealing a Sanctions Order
A party hit with sanctions has options, but the path to reversal is narrow and the timing can be frustrating.
When You Can Appeal
Most discovery sanctions are interlocutory, meaning they happen during the case rather than at the end. Under federal law, interlocutory orders generally cannot be appealed until after final judgment. A party ordered to pay $50,000 in sanctions typically has to wait until the entire case is resolved before challenging the order. The big exception is case-dispositive sanctions: dismissal or default judgment is a final order and immediately appealable. A narrow route also exists under 28 U.S.C. § 1292(b) when the trial judge certifies that the order involves a controlling question of law with substantial grounds for disagreement, but in practice that route is rarely available for routine sanctions.5Office of the Law Revision Counsel. 28 US Code 1292 – Interlocutory Decisions
What the Appellate Court Looks At
Appellate courts review discovery sanctions under an abuse-of-discretion standard, which gives trial judges significant deference. Overturning a sanction requires showing the judge made a clear error of judgment, not merely that a different judge might have chosen differently. For lesser sanctions like fee awards, that standard is genuinely difficult to overcome.
Case-dispositive sanctions get closer scrutiny. Appellate courts expect written findings explaining why the party’s conduct was willful or in bad faith and why lesser sanctions would not suffice. A dismissal or default that skips this analysis is vulnerable on appeal even when the underlying misconduct was serious.
A Note on State Court
Most states have discovery rules modeled on the federal framework, but the details vary. Some impose stricter meet-and-confer requirements before a sanctions motion can be filed. Others give judges more or less discretion in choosing penalties, or apply different standards for when case-dispositive sanctions are appropriate. A few have specific statutes on electronic discovery preservation that differ from Rule 37(e). If your case is in state court, the general principles here apply broadly, but the specific procedures and standards will follow that state’s own rules of civil procedure.