# Answer to a Counterclaim or Crossclaim: 21-Day Deadline Published and updated 2026-10-29 · RuleX editorial team · United States · American English A party must serve an answer to a counterclaim or crossclaim within 21 days after being served with the pleading that states it (Fed. R. Civ. P. 12(a)(1)(B)). The United States has 60 days after service on the United States attorney. The calculator below is loaded with 21 days and offers the Rule 6(d) extension for mail service; RuleX keeps the date in the case. ## The trigger is service of the pleading that states the counterclaim. Rule 12(a)(1)(B) gives a party 21 days to serve an answer to a counterclaim or crossclaim, counted from service of the pleading that states it. A counterclaim usually arrives inside the defendant's answer, so the trigger is the day that answer, or an amended answer containing the counterclaim, was served on you. A crossclaim arrives the same way, in a co-party's pleading. Rule 6(a)(1) sets the count. Exclude the day of service, count every following day including weekends and holidays, and include the last day. A counterclaim served through the court's electronic-filing system on Friday, December 4, 2026 has day 21 on Friday, December 25, 2026, Christmas Day. The deadline moves through Saturday and Sunday to the end of Monday, December 28, 2026. The answer to a counterclaim matters because Rule 8(b)(6) treats an allegation, other than one relating to the amount of damages, as admitted when a responsive pleading is required and the allegation is not denied. A calendar entry for this date protects the client's position on every allegation in the counterclaim. ## Rule 6(d) belongs here, and the service method decides it. A counterclaim is a paper served after the complaint, so it is served under Rule 5(b). Rule 6(d) adds three days after the period would otherwise expire when service is made by mail under Rule 5(b)(2)(C), by leaving it with the clerk under Rule 5(b)(2)(D), or by other means the person consented to in writing under Rule 5(b)(2)(F). Service through the court's electronic-filing system, or by other electronic means the person consented to in writing, falls under Rule 5(b)(2)(E) and carries no extra days. The same counterclaim served by mail on Friday, December 4, 2026 shows how the extension works. The 21-day period expires under Rule 6(a) on Monday, December 28, 2026, and Rule 6(d) then adds three days, which makes Thursday, December 31, 2026 the date. Choose the qualifying-service option in the calculator to see both dates side by side. Service by mail is complete upon mailing, so the mailing date is the trigger. Check the certificate of service on the pleading. It states the method, and the method determines whether the calculation takes the three added days. ## Other answer periods in the same rule. The United States, a federal agency, or an officer or employee sued only in an official capacity answers a counterclaim or crossclaim within 60 days after service on the United States attorney (Rule 12(a)(2)). An officer or employee sued in an individual capacity for an act or omission in connection with duties performed on the United States' behalf has 60 days after service on the officer or employee or on the United States attorney, whichever is later (Rule 12(a)(3)). A reply to an answer follows a different trigger. A party serves a reply within 21 days after being served with an order to reply, unless the order specifies a different time (Rule 12(a)(1)(C)). Use the order's service date in the calculator and keep the order with the case. A Rule 12 motion directed at the counterclaim alters the period. If the court denies the motion or postpones its disposition until trial, the responsive pleading is due 14 days after notice of the court's action, unless the court sets a different time (Rule 12(a)(4)). ## The court can extend the date, and the clerk can enter a default. A request made before the 21 days expire lets the court extend the time for good cause under Rule 6(b)(1)(A), with or without a motion or notice. After expiration, Rule 6(b)(1)(B) requires a motion and a showing of excusable neglect. Rule 55(a) directs the clerk to enter default against a party that has failed to plead or otherwise defend, which applies to a counterclaim-defendant that misses the date. Add the state holidays of the district and any clerk's-office closure to the calculator. Rule 6(a)(6)(C) counts a state-declared holiday for periods measured after an event, and Rule 6(a)(3) extends the time when the clerk's office is inaccessible on the last day. ## RuleX keeps the counterclaim answer date in the case, next to its source. Create the case in RuleX, add a task for the answer to the counterclaim with the calculated due date, and attach the pleading that states the counterclaim and its certificate of service. The case log records the rule, the trigger date and the holidays you applied, so every lawyer on the matter reads the same calculation and can reopen the source behind it. Ask RuleX to compare each counterclaim allegation with the file and draft the paragraph-by-paragraph answer in Word. Research, drafting and the calendar date live in one case file with the documents, and the 7-day free trial lets you set up your first matter today. ## Frequently asked questions ### How long do I have to answer a counterclaim in federal court? You have 21 days after being served with the pleading that states the counterclaim (Fed. R. Civ. P. 12(a)(1)(B)). The same period applies to a crossclaim. ### Do I get three extra days if the counterclaim was served by mail? Mail service under Rule 5(b)(2)(C) adds three days after the period would otherwise expire (Rule 6(d)). Service through the court's electronic-filing system follows the regular count. ### How long does the United States have to answer a counterclaim? The United States, a federal agency, or an officer or employee sued only in an official capacity has 60 days after service on the United States attorney (Rule 12(a)(2)). ### When is a reply to an answer due? A reply is due within 21 days after being served with an order to reply, unless the order specifies a different time (Rule 12(a)(1)(C)). ### What follows from an unanswered counterclaim? An allegation other than one about the amount of damages is treated as admitted when a responsive pleading is required and the allegation is not denied (Rule 8(b)(6)), and the clerk may enter default under Rule 55(a). ## Sources - [Fed. R. Civ. P. 12 — Defenses and objections (Cornell LII)](https://www.law.cornell.edu/rules/frcp/rule_12) - [Fed. R. Civ. P. 6 — Computing and extending time (Cornell LII)](https://www.law.cornell.edu/rules/frcp/rule_6) - [Fed. R. Civ. P. 5 — Serving and filing pleadings and other papers (Cornell LII)](https://www.law.cornell.edu/rules/frcp/rule_5) - [Fed. R. Civ. P. 8 — General rules of pleading (Cornell LII)](https://www.law.cornell.edu/rules/frcp/rule_8) - [Fed. R. Civ. P. 55 — Default; default judgment (Cornell LII)](https://www.law.cornell.edu/rules/frcp/rule_55) - [U.S. Courts — Federal Rules of Civil Procedure](https://www.uscourts.gov/forms-rules/current-rules-practice-procedure/federal-rules-civil-procedure) ## Work on the matter in RuleX [Create a U.S. account](https://rulex.org/united-states?register=1) · [U.S. pricing](https://rulex.org/united-states/pricing) ## Representation This Markdown represents the same public page. Browsers receive HTML at its canonical URL. - **Canonical (HTML):** https://rulex.org/united-states/answer-to-counterclaim-deadline-federal-court - **This representation:** https://rulex.org/united-states/answer-to-counterclaim-deadline-federal-court.md - **Home:** https://rulex.org/united-states - **llms.txt:** https://rulex.org/llms.txt