How Long to Respond to a Motion to Dismiss in Federal Court: Local-Rule Deadlines in 22 Districts

How long to respond to a motion to dismiss in federal court depends on the district. The Federal Rules of Civil Procedure set no general deadline to oppose one, so the local rule controls. Of the 22 districts below, 11 give 14 days, 8 give 21, the Northern District of Ohio gives 30, and two (C.D. Cal. and D.N.J.) count back from the hearing or motion day. D. Ariz.'s 14 days covers only a Rule 12(b)(6) motion. Find your court, check what starts the clock, then read the judge's standing order.

Why the Federal Rules don't answer this

Rule 12(a) sets the time to answer a complaint, including the 14 days to answer after a Rule 12 motion is denied. Nothing in Rule 12 sets the time to respond to a Rule 12(b) motion. The rule people reach for is Rule 6(c), and it is a hearing-notice rule: a written motion and notice of hearing "must be served at least 14 days before the time specified for the hearing," and "any opposing affidavit must be served at least 7 days before the hearing, unless the court permits service at another time." It tells the movant how early to file. It does not tell you when your opposition is due.

Rule 83 fills the gap. It lets a district court adopt local rules "governing its practice," and lets a judge, where no rule controls, "regulate practice in any manner consistent with federal law, . . . and the district's local rules." So there are two layers to check: the local rule, then the individual judge. The posts on responding to a motion to dismiss and the motion to dismiss standard cover what goes in the brief. This one covers when it is due.

How long to respond to a motion to dismiss in federal court, by district

This table was checked against each court's posted rules on October 1, 2026. "Runs from" is the event that starts the clock, and "Reply" is the movant's reply brief deadline. Courts amend these rules, so the linked rule, not this table, is your authority.

Three caveats on the table. E.D. Pa.'s posted compilation carries amendments only through May 8, 2023. If a newer amendment exists, it controls. In D. Ariz., the 14-day row covers a Rule 12(b)(6) motion. If any ground is lack of personal or subject-matter jurisdiction, LRCiv 12.1(b) puts the briefing on the summary-judgment schedule in LRCiv 56.1(d): 30 days after service to respond and 15 days to reply. And "other motions" means the default for non-dispositive motions; discovery motions often have their own, shorter schedule, such as the 7-day response in S.D.N.Y. and E.D.N.Y. Local Civil Rule 6.1(a).

Motion to dismiss page limits in the local rules

The same local rules cap the opposition and the reply. Limits are in pages unless noted.

E.D. Pa., D. Colo. and S.D. Tex. set no limit in the local rules cited above, so check the judge's practice standards.

Four ways the clock starts

The number of days is the smaller problem. The starting point is where deadlines get missed.

From service. Most districts (S.D.N.Y., D.D.C., M.D. Fla., S.D. Ind.) count from service of the motion. Under Rule 6(a)(1), you exclude the day of service, count every day including weekends and holidays, and roll a weekend or holiday last day to the next business day.

From filing. N.D. Cal. is explicit: the opposition must be filed and served "not more than 14 days after the motion was filed," and Rule 6(d) "does not apply." N.D. Tex., S.D. Tex., W.D. Wash. and D. Minn. also run from filing.

From the hearing. C.D. Cal. counts backward: the opposition is due 21 days before the hearing and the reply 14 days before. Because L.R. 6-1 only requires the notice 28 days before the hearing, a movant who gives the minimum leaves you seven days. A continued hearing moves your date, under L.R. 7-11.

From the motion day. D.N.J. motions are returnable on regular motion days at least 24 days after filing. Opposition is due 14 days before that day, which can be as little as 10 days after the motion is filed. L.Civ.R. 7.1(d)(5) lets the opposing party adjourn a dispositive motion's motion day once by letter, without consent, if it writes before the opposition would otherwise be due.

The 21-day amendment window runs beside it

A motion under Rule 12(b), (e) or (f) opens a second clock. Rule 15(a)(1)(B) lets the pleader amend once as a matter of course within 21 days after service of the motion. An amended complaint usually moots the motion.

In a 14-day district, your opposition is due a week before the free amendment window closes, so decide first whether the complaint can be fixed. Two local rules build that choice in. S.D. Ind. L.R. 7-1(c)(2) gives 21 days "unless that party is entitled to and first files an amended pleading as a matter of course," and E.D. Pa. LR 7.1(c) requires a party who intends to amend under Rule 15 to file a notice of intent within the 14-day response period.

What happens if you miss it

Local rules attach consequences. D.D.C. LCvR 7(b): "If such a memorandum is not filed within the prescribed time, the Court may treat the motion as conceded." N.D. Ga. LR 7.1(B): failure to file a response "shall indicate that there is no opposition." S.D. Ind. L.R. 7-1(c)(5) permits a summary ruling. E.D. Pa. LR 7.1(c) allows the motion to be "granted as uncontested," except as provided under Rule 56. A concession on a motion to dismiss can end the claim, and relief from it runs through reconsideration.

Standing orders can override all of it

Every local rule above yields to a contrary order. S.D.N.Y. Local Civil Rule 6.1 applies "unless provided otherwise by statute or rule, or by the court in a judge's individual practices." D.D.C. LCvR 7(b) allows "such other time as the Court may direct." A scheduling order in your case may set the whole briefing schedule. Before relying on any table, this one included, read the judge's page on the court's site and check the docket. The guide to searching federal court dockets covers the free ways in.

Different motions have different clocks, too. The opposition brief deadline for a motion for judgment on the pleadings often matches the motion-to-dismiss deadline, but the summary-judgment clock frequently differs, as in D. Mass. and N.D. Ga., where summary judgment gets 21 days against 14 for everything else. See the guide to opposing a motion for summary judgment.

Calendar the date the day the motion arrives

Compute the dates from your district's rule and the right starting event, then put the response date, the reply date and the amendment cutoff on the matter's calendar the day the motion is served. In C.D. Cal. and D.N.J., add the hearing or motion day. In CaseRead, those dates go on the matter's deadlines calendar, and you can ask the research chat to find the district's local rule on motion practice. CaseRead does not calculate the deadline for you, so open the court's posted rule and confirm the text.

Frequently asked questions

How long do you have to respond to a motion to dismiss in federal court?

It depends on the district. The Federal Rules set no general opposition deadline, so the local rule controls. Of the 22 districts in the table, 11 allow 14 days, 8 allow 21, the Northern District of Ohio allows 30, and two count from the hearing or motion day. D. Ariz.'s 14 days covers only a Rule 12(b)(6) motion. Check the judge's standing order, which can change the date.

Does Rule 6(c) give me 14 days to oppose a motion?

No. Rule 6(c) governs notice of a hearing: the motion and notice must be served at least 14 days before the hearing, and opposing affidavits at least 7 days before it. It sets no response deadline. Where the 14-day figure appears, it comes from the district's local rule, not from the Federal Rules.

Do I get three extra days if the motion was served by mail?

Rule 6(d) adds 3 days after service by mail, by leaving with the clerk, or by other consented means. It does not add them after service through the court's electronic system, which is how most motions are served. Some local rules address it directly: N.D. Cal. and E.D. Va. say 6(d) does not extend their deadlines, while N.D. Ohio expressly adds them for those service methods.

What happens if I miss the response deadline?

Many local rules let the court treat the motion as unopposed or conceded. D.D.C. LCvR 7(b) says the court may treat the motion as conceded, and S.D. Ind. L.R. 7-1(c)(5) lets the court rule summarily. Move for an extension before the deadline passes, and read the local rule on whether leave is required.

Can I amend the complaint instead of opposing a motion to dismiss?

Often yes. Rule 15(a)(1)(B) lets a party amend once as a matter of course within 21 days after service of a Rule 12(b), (e), or (f) motion. Amending usually moots the pending motion. In 14-day districts, your opposition is due a week before that window closes, so decide whether to amend first.

Before you file the opposition

Once the date is on the calendar, the brief still has to hold up. If a citation in the opposition is wrong, the movant's reply is likely to say so, in front of the judge deciding the motion. Run the draft through the Hallucination Shield: it is free, needs no signup, checks up to 50 citations per run and flags any it cannot verify. Whether each case holds what your brief says it does is still your read.

This article is for general information and is not legal advice. For guidance on a specific case, consult a licensed attorney in your jurisdiction.