If an appellant does not file a brief, the appeal is almost always dismissed and the trial court’s judgment is left in place. Under Federal Rule of Appellate Procedure 31, the appellant has 40 days after the record is filed to serve and file the brief, and once that window closes the appellee can move to dismiss the appeal.1Legal Information Institute. Federal Rules of Appellate Procedure Rule 31 – Serving and Filing Briefs Extensions and reinstatement are possible, but neither is guaranteed, and both get harder the longer you wait.
The Deadline That Starts the Problem
FRAP 31 sets the baseline: 40 days from the filing of the record.1Legal Information Institute. Federal Rules of Appellate Procedure Rule 31 – Serving and Filing Briefs Local rules can tighten that. The Fourth Circuit, for instance, gives criminal appellants 35 days from the date the briefing order is filed rather than 40 days from when the record arrives.2United States Court of Appeals for the Fourth Circuit. Rule 31 – Serving and Filing Briefs The briefing order the clerk sends out once the record is complete controls your actual deadline, so read it the day it arrives.
The brief matters this much because appellate judges have little else to work with. There is usually no live testimony and no new evidence. If no brief is filed, the court has nothing to review, and it reads the silence as a signal that the appellant has walked away from the appeal.
What the Court Does When the Brief Does Not Arrive
Appellate courts rarely dismiss the moment a deadline passes. The usual sequence starts with a notice from the clerk’s office warning that the brief is overdue and must be filed within a short window, often 14 to 21 days depending on the court. Treat that notice as a real warning rather than a reminder.
If nothing is filed in response, the court may issue an order to show cause requiring the appellant to explain in writing why the appeal should not be dismissed. Ignoring a show cause order almost guarantees dismissal, because the court reads silence as indifference.
FRAP 31(c) gives the appellee the specific mechanism to end a stalled appeal: a motion to dismiss for failure to file the brief.1Legal Information Institute. Federal Rules of Appellate Procedure Rule 31 – Serving and Filing Briefs Some circuits can also dismiss on their own for failure to prosecute. In practice, appellees almost always file the motion once the deadline passes, because they want the judgment to become final.
What Dismissal Actually Costs
When the appeal is dismissed, the lower court’s decision stands. Whatever the trial court entered — damages, a criminal sentence, an injunction — goes back into full effect as though the appeal had never been filed. The appellant permanently loses the chance to have a higher court review the alleged errors.
Courts sometimes label dismissals “with prejudice” or “without prejudice,” but the practical result is usually the same: by the time the dismissal issues, the appellate deadlines have run, so even a dismissal that nominally allows refiling rarely gives the appellant another real shot.
Costs Shift to the Appellant
FRAP 39 charges costs to the appellant when the appeal is dismissed.3Legal Information Institute. Federal Rules of Appellate Procedure Rule 39 – Costs Taxable appellate costs include things like printing and reproducing briefs and appendices. The appellant can end up owing the appellee money on top of losing the appeal.
Attorney Discipline
If an attorney’s inaction caused the missed deadline, the court can impose professional discipline. FRAP 46 authorizes appellate courts to discipline any attorney who practices before them for failure to comply with court rules, after notice and an opportunity to respond.4United States Court of Appeals for the Fourth Circuit. Rule 46 – Attorneys Sanctions range from a reprimand to suspension from practicing in that circuit.
Asking for More Time Before the Deadline
The strongest move once you realize the brief will be late is to ask for an extension before the deadline arrives. FRAP 26(b) gives appellate courts broad authority to extend any deadline the rules set, on a showing of good cause.5Office of the Law Revision Counsel. Federal Rules of Appellate Procedure Rule 26 – Computing and Extending Time Briefing deadlines have real flexibility built in, unlike the deadline for filing the notice of appeal, which cannot be extended.
Good cause is a moderate standard. Courts routinely grant first-time requests when the attorney explains the reason — complexity of the record, difficulty getting transcripts, heavy caseload — and files before the deadline passes. Extensions of 30 days are common. Successive requests draw more skepticism.
The math changes once the deadline is gone. The court can still extend time after the fact, but the delay itself becomes something that has to be justified, so the practical bar rises. One day early is materially better than one day late. The Tenth Circuit tells appellants directly: if you miss a deadline without requesting an extension, the appeal may be dismissed.6United States Court of Appeals for the Tenth Circuit. Pro Se – Extensions, Deadline and Responsibilities
Getting a Dismissed Appeal Reinstated
If the dismissal has already issued, the appellant can move to vacate it and reinstate the appeal. This is an uphill fight. The appellant has to show “excusable neglect,” the standard the Supreme Court set out in Pioneer Investment Services Co. v. Brunswick Associates. The Court identified four factors:
- Prejudice to the opposing party: whether the delay harmed the appellee’s ability to defend the judgment.
- Length of the delay: how long the appellant waited and the impact on the proceedings.
- Reason for the delay: whether the cause was within the appellant’s reasonable control.
- Good faith: whether the appellant acted honestly rather than strategically.
Simple indifference to deadlines does not qualify.7Legal Information Institute. Pioneer Investment Services Co. v. Brunswick Associates Ltd. Partnership, 507 U.S. 380 (1993) A clerical error, like misreading the due date on a calendar, might. Forgetting about the case, deprioritizing it, or simply running out of time usually will not. Courts weigh all four factors together, but the reason for the delay tends to carry the most weight.
Reinstatement motions do best when the delay was short, the appellant moved quickly once the problem surfaced, and the appellee cannot point to real harm from the extra time. They fail when weeks or months have passed with no explanation, or when the appellant had plenty of warning and ignored it.
When Your Lawyer Missed the Deadline
One of the hardest versions of this situation is when the appellant’s own attorney is responsible. Courts treat the client and the attorney as a unit when evaluating excusable neglect, so the attorney’s failure is treated as the client’s.7Legal Information Institute. Pioneer Investment Services Co. v. Brunswick Associates Ltd. Partnership, 507 U.S. 380 (1993) The appeal typically gets dismissed even when the client personally did nothing wrong.
In civil cases, the remedy usually lies outside the appeal: a legal malpractice claim against the attorney. The former client generally has to show the attorney breached the standard of care, that the breach caused the appeal to fail, and that the appeal had a reasonable chance of succeeding on the merits. That last piece is what makes these claims difficult, because the client essentially has to prove they would have won the appeal they never got to argue.
Criminal appeals work differently. A criminal defendant has a constitutional right to effective assistance of counsel on direct appeal. When counsel completely fails to file a brief, courts are more likely to appoint new counsel and let the appeal proceed than to punish the defendant for the lawyer’s abandonment. Civil litigants do not get that protection and bear the risk of their attorney’s mistakes.
If You Are Representing Yourself
Pro se appellants face the same deadlines as represented parties. Courts apply the same procedural rules, though some circuits give slightly more notice before dismissing. The Tenth Circuit publishes guidance reminding self-represented parties that deadlines are firm and that failing to request an extension before the deadline passes can result in dismissal.6United States Court of Appeals for the Tenth Circuit. Pro Se – Extensions, Deadline and Responsibilities
Track your briefing deadline from the moment the scheduling order arrives. If you need more time, ask before the deadline runs. A short, honest motion asking for 30 more days is almost always granted the first time. Waiting until after the deadline to figure out what went wrong is where most self-represented appellants lose their cases for good.