The Summons Says 21 Days. Here Is What That Actually Means.
A federal summons does not bury the lead. It tells you plainly: “Within 21 days after service of this summons on you (not counting the day you received it)” you must serve an answer or a motion under Rule 12. That parenthetical is the part people blow past, and it is where most counting mistakes begin.
Thank you for reading this post, don't forget to subscribe!This guide lays out the exact federal answer deadline under FRCP 12, how to count the days without error, the longer windows that apply when service was waived or the government is the defendant, and what a Rule 12 motion does to your clock. The rules below come straight from the current Federal Rules of Civil Procedure.
The Rule in Plain English: FRCP 12(a)
Rule 12(a)(1)(A) sets the default: a defendant must serve an answer within 21 days after being served with the summons and complaint. But that is only one of several answer clocks, and you need to match your situation to the right one:
- Served with the summons and complaint in the United States: 21 days (FRCP 12(a)(1)(A)(i)). This is the default and the one most defendants face.
- You signed a waiver of service under Rule 4(d): 60 days after the waiver request was sent, or 90 days if the request was sent to you outside any judicial district of the United States (FRCP 12(a)(1)(A)(ii)). The extra time is the reward for sparing the plaintiff the cost of formal service.
- The defendant is the United States, a federal agency, or a federal officer sued in an official capacity: 60 days after service on the United States attorney (FRCP 12(a)(2)).
- A federal officer or employee sued in an individual capacity (for example, in a damages suit over actions taken on the job): 60 days after service on the officer or employee or on the United States attorney, whichever is later (FRCP 12(a)(3)).
- Answering a counterclaim or crossclaim: 21 days after being served with the pleading that states it (FRCP 12(a)(1)(B)).
- A reply to an answer, when the court orders one: 21 days after being served with the order (FRCP 12(a)(1)(C)).
Note what changed in 2009: the general answer period was 20 days until the FRCP time-computation amendments made it 21. Old practice guides and older bar-journal articles still cite 20 days. They are wrong.
How to Count the 21 Days: FRCP 6(a)
The counting method matters as much as the number. FRCP 6(a) gives you three instructions:
- Do not count the day of the event. The day you were served is day zero. Your count starts the next day.
- Count every calendar day forward, including Saturdays, Sundays, and holidays.
- If the last day is a Saturday, Sunday, or federal legal holiday, the deadline rolls to the next business day.
Only federal legal holidays count for the roll. A state holiday that is not a federal holiday does not move your deadline. Run your dates through our federal court deadlines calculator to double-check, but always confirm against the court’s holiday schedule.
Worked example: standard service
You are personally served with the summons and complaint on Monday, October 12, 2026. Do not count October 12. Day 1 is October 13. Count forward 21 days: day 21 lands on Monday, November 2, 2026. That day is not a federal holiday, so your answer (or Rule 12 motion) must be served by November 2, 2026.
Worked example: waiver of service
The plaintiff mails you a Rule 4(d) waiver request on Thursday, October 15, 2026, and you sign and return it promptly. Your answer clock runs from when the request was sent: 60 days after October 15 is Monday, December 14, 2026. If that same request had been sent to you in London, you would have 90 days: January 13, 2027.
The Waiver-of-Service Trade
Rule 4(d) waiver requests arrive as a letter, not a process server. The plaintiff must give you at least 30 days (60 if you are abroad) to return the signed waiver form, and if you cooperate, you get the long answer window above. It is a deliberate bargain: the plaintiff saves the expense of personal service, and you get breathing room to find counsel and investigate.
Refusing without good cause is expensive. If you ignore a waiver request and the plaintiff then serves you formally, the court must impose the later service expenses on you, plus the reasonable expenses (including attorney’s fees) of any motion needed to collect them. Signing the waiver does not waive any defense. It just moves the clock.
What a Rule 12(b) Motion Does to the Clock
Instead of an answer, you may serve a motion asserting defenses under Rule 12(b) — lack of jurisdiction, improper venue, failure to state a claim, and the rest — or a motion for a more definite statement (12(e)) or to strike (12(f)). That motion must itself be filed within the original answer period.
Serving the motion then resets your answer deadline under FRCP 12(a)(4):
- Motion denied (or the court postpones deciding it until trial): your answer is due 14 days after notice of the court’s action, unless the court sets a different time.
- Motion for a more definite statement granted: your answer is due 14 days after the statement is served.
Two traps to avoid. First, filing a motion you do not expect to win just to buy 14 days is a tactic judges recognize; a thin motion can also waive defenses you could have preserved. Second, remember the fresh 14-day period only exists if the motion was served before the original answer deadline expired.
If the Government Is the Defendant
Cases against the United States or its officers run on a longer fuse, but they also have their own service traps. The 60-day answer period for official-capacity suits runs from service on the United States attorney — and Rule 4(i) requires serving the United States itself plus the agency or officer separately. If the officer is sued in an individual capacity, you get 60 days from the later of the two service dates. Practitioners who serve the wrong entity or mis-identify the service date miscalculate this window more often than any other.
Miss It and You Face Default
There is no graceful late lane. If you do not answer or move within the deadline, the plaintiff can ask the clerk to enter your default under FRCP 55(a), then move for a default judgment. At that point you are not arguing the merits; you are begging the court to forgive the miss.
Forgiveness exists but is not cheap. FRCP 6(b) lets a court extend time after a deadline has passed “for cause shown,” and courts weigh excusable neglect, prejudice to the plaintiff, the length of the delay, and whether you moved promptly. Our guide on what to do when you miss a federal court deadline walks through that relief framework in detail. The better move is the boring one: calendar the date the summons arrives, add the correct rule, and file early.
What Comes After the Answer
Once the answer is in, the next deadlines stack up fast: initial disclosures 14 days after the Rule 26(f) conference, the discovery plan, expert disclosures 90 days before trial under Rule 26(a)(2)(D), and the discovery cutoff set by the scheduling order. Our guide on calculating federal discovery cutoff dates picks up where this one leaves off. For any date math along the way, our legal deadline calculator handles the counting with weekend and holiday adjustment.
FAQs
How many days do I have to answer a federal complaint?
Twenty-one days after being served with the summons and complaint, under FRCP 12(a)(1)(A)(i). The period is 60 days if you signed a waiver of service, 90 days if the waiver request was sent abroad, and 60 days in cases against the United States or its officers.
Does the 21-day clock start on the day I was served?
No. Under FRCP 6(a), you exclude the day of service; day 1 is the following day. The summons itself prints this rule on it: “not counting the day you received it.”
Do weekends and holidays count in the 21 days?
Yes. Every calendar day counts, including weekends and holidays. The only adjustment comes at the end: if day 21 falls on a Saturday, Sunday, or federal legal holiday, the deadline rolls to the next business day.
What if I signed a waiver of service?
Then you do not answer until 60 days after the waiver request was sent (90 days if sent outside any judicial district of the United States), under FRCP 12(a)(1)(A)(ii). The clock runs from when the request was sent, not from when you signed.
If I file a motion to dismiss, when is my answer due?
Fourteen days after notice of the court’s action if the motion is denied (or its decision postponed to trial), or 14 days after the more definite statement is served if the court grants that motion (FRCP 12(a)(4)).
Can I get an extension of the federal answer deadline?
Usually, yes — by stipulation with opposing counsel (many districts allow one short extension by agreement, but check your local rules) or by motion to the court under FRCP 6(b). Ask before the deadline passes; courts are far more generous with timely requests than retroactive ones.
General information only — not legal advice. Deadline rules have exceptions, local rules can modify these periods, and this article is current as of October 2026. Verify against the current Federal Rules of Civil Procedure and consult a licensed attorney for your case.