FRCP Rule 6(b): Good Cause, Excusable Neglect, and Limits

A Rule 6(b) extension of time in federal court turns on one question: are you asking before the deadline or after it? File beforehand and you need to show good cause, a relatively forgiving standard. File afterward and you must show excusable neglect, which is harder. A handful of post-judgment deadlines cannot be extended under Rule 6(b) at all, and if a scheduling order already governs the date you want to move, a different rule with its own standard takes over.

Good Cause for Pre-Deadline Requests

Rule 6(b)(1)(A) lets the court extend a deadline for good cause when the request comes in before the current deadline expires.¹ The reason does not have to be extraordinary. An unexpected illness, difficulty obtaining discovery materials, or the sudden unavailability of a key witness can qualify. Judges tend to grant these motions when the party has acted diligently and the extra time will not unfairly set back the other side.

One feature of the rule surprises many litigants. The court can extend a deadline on its own initiative, “with or without motion or notice,” so long as it acts before the deadline passes.¹ Do not count on that happening. File your own request as soon as you know the deadline is a problem.

Excusable Neglect for Post-Deadline Requests

Once the deadline has passed, Rule 6(b)(1)(B) still allows an extension, but only on a showing of excusable neglect.¹ In Pioneer Investment Services Co. v. Brunswick Associates Ltd., the Supreme Court held that this determination is “at bottom an equitable one, taking account of all relevant circumstances.”² Courts weigh four factors:

Prejudice to the opposing party. Would granting the extension cause real harm, or merely inconvenience?
Length of the delay and its effect on the case. Days weigh less than weeks.
Reason for the delay. This is where most motions succeed or fail. Circumstances outside the party’s reasonable control, such as a mail failure or a natural disaster, weigh heavily in favor. Simple carelessness or ignorance of the rules almost never qualifies.
Whether the party acted in good faith, as opposed to strategically ignoring the deadline.

No single factor decides the motion. Courts weigh them together, but the reason for the delay tends to carry the most weight in practice. If ordinary diligence would have met the deadline, most courts will deny the request regardless of how the other factors line up.

Deadlines Rule 6(b) Cannot Extend

Rule 6(b)(2) lists post-trial deadlines the court has no authority to extend, no matter how compelling the reason. They exist to preserve finality after judgment:

Rule 50(b) and (d): a renewed motion for judgment as a matter of law, filed no later than 28 days after entry of judgment.³
Rule 52(b): a motion to amend or make additional findings of fact, filed no later than 28 days after entry of judgment.¹
Rule 59(b), (d), and (e): a motion for a new trial or to alter or amend a judgment, filed no later than 28 days after entry of judgment.⁴
Rule 60(b): a motion for relief from a final judgment, made within a “reasonable time,” and for certain grounds no more than one year after the judgment or order was entered.⁵

Missing any of these windows usually means the right to challenge the judgment is permanently lost. Courts treat the 28-day deadlines under Rules 50, 52, and 59 as jurisdictional. No showing of good cause or excusable neglect will help once the clock runs out.¹

When a Scheduling Order Controls

Early in most federal cases, the court issues a scheduling order under Rule 16(b) setting deadlines for discovery, motions, and other pretrial activity. After that, Rule 6(b) alone will not move those dates. Rule 16(b)(4) says a scheduling order “may be modified only for good cause and with the judge’s consent.” This is a separate good cause analysis from Rule 6(b), and it focuses heavily on diligence. The Advisory Committee Notes state that the schedule must “not reasonably be met despite the diligence of the party seeking the extension.”⁶

The distinction matters because the consequences of violating a scheduling order are steeper. Under Rule 16(f), a court can impose sanctions for failing to obey a scheduling order, including striking pleadings, prohibiting evidence, or dismissing claims. The court must also order the noncompliant party or attorney to pay the reasonable expenses and attorney’s fees caused by the violation, unless the noncompliance was substantially justified.⁶ If the deadline you need to move sits in a scheduling order, frame the request under Rule 16(b)(4) and show your diligence specifically.

Appeal Deadlines Follow a Different Rule

Rule 6(b) governs deadlines under the Federal Rules of Civil Procedure. It does not control the deadline for filing a notice of appeal. That timeline lives in Federal Rule of Appellate Procedure 4, which has its own extension mechanism with strict limits. In civil cases, a party may move to extend no later than 30 days after the original appeal deadline expires, on a showing of excusable neglect or good cause. Even when granted, the extension cannot exceed 30 days beyond the original deadline or 14 days after the extension order is entered, whichever is later.⁷ A litigant who assumes Rule 6(b) applies to everything can miss the narrow window for extending an appeal deadline and lose the right to appeal entirely.

Stipulated Extensions Between Parties

Not every extension requires a motion. Under Rule 29, parties can agree in writing to modify discovery procedures and extend response deadlines for interrogatories, document requests, and requests for admission. A stipulation that would interfere with a court-set deadline for completing discovery, a hearing, or a trial still requires court approval.¹ Parties have real flexibility with discovery timelines that do not bump against the scheduling order. Once the extension would push against a court-imposed date, a stipulation alone is not enough.

What To Put in the Motion

Identify the specific deadline you need extended and the new date you want. Be precise about the filing or act involved, the current due date, and why the proposed new date gives you enough time without being excessive.

Explain the reason. For a pre-deadline motion, articulate the good cause. For a post-deadline motion, address each of the four Pioneer factors directly. Describe the concrete circumstances that make the current deadline unworkable and the steps you have already taken to comply. Vague assertions about being “busy” or having a “heavy caseload” without more detail will not persuade most judges.

State the position of the opposing party. Many local rules require you to confer with opposing counsel before filing any non-dispositive motion, including extension requests. Even where the local rules do not explicitly mandate it, telling the court whether the other side consents, opposes, or takes no position is standard practice and shapes how the court handles the request. A consent extension is often granted without a hearing. An opposed one draws closer scrutiny.

Submit a proposed order for the judge to sign. Identify the parties, the case number, the specific deadline being extended, and the new date. If your court has a local form or template, use it. Some districts are particular about formatting, and a non-conforming document can delay the ruling.

If the motion is denied, the original deadline remains in effect, and you should file immediately to avoid sanctions, which range from monetary penalties to dismissal or default. If it is granted, treat the new deadline with the same urgency as the original. A second extension request faces much greater skepticism.

1
Legal Information Institute. Federal Rules of Civil Procedure Rule 6 – Computing and Extending Time; Time for Motion Papers
2
Legal Information Institute. Pioneer Investment Services Co. v. Brunswick Associates Ltd.
3
Legal Information Institute. Federal Rules of Civil Procedure Rule 50 – Judgment as a Matter of Law in a Jury Trial; Related Motion for a New Trial; Conditional Ruling
4
Legal Information Institute. Federal Rules of Civil Procedure Rule 59 – New Trial; Altering or Amending a Judgment
5
Legal Information Institute. Federal Rules of Civil Procedure Rule 60 – Relief from a Judgment or Order
6
Legal Information Institute. Federal Rules of Civil Procedure Rule 16 – Pretrial Conferences; Scheduling; Management
7
Legal Information Institute. Federal Rules of Appellate Procedure Rule 4 – Appeal as of Right – When Taken