Does the response deadline run from an amended complaint filing?
Yes—under the Federal Rules of Civil Procedure, the response deadline can effectively restart from service of the amended complaint, but only to a limited extent. The governing rule is Fed. R. Civ. P. 15(a)(3), which provides that a response to an amended pleading must be filed within the later of (1) the time remaining to respond to the original pleading or (2) 14 days after service of the amended pleading, unless the court orders otherwise.[1]
Rule
Under Fed. R. Civ. P. 15(a)(3):
"Unless the court orders otherwise, any required response to an amended pleading must be made within the time remaining to respond to the original pleading or within 14 days after service of the amended pleading, whichever is later."[1]
Time is calculated using Fed. R. Civ. P. 6(a), which excludes the triggering day and counts all intermediate days unless the final day falls on a weekend or legal holiday.[2]
Application
When a plaintiff files and serves an amended complaint:
- The defendant does not necessarily get a full new response period.
- Instead, the rule provides a minimum 14‑day window after service of the amended pleading.
- If the defendant still had more than 14 days left on the original response deadline, that longer period controls.
Example
- Original complaint served → response due in 21 days.
- After 10 days, plaintiff files an amended complaint.
Remaining time to respond to original complaint: 11 days.
Under Rule 15(a)(3):
- Remaining time: 11 days
- New rule minimum: 14 days
Because the rule uses "whichever is later," the defendant receives 14 days from service of the amended complaint.
If instead the amended complaint were filed on day 3 (leaving 18 days remaining), the response deadline would remain 18 days, because that is later than 14 days.
Practical Effect
- Filing an amended complaint does not automatically restart the full Rule 12 response period.
- It guarantees at least 14 days from service of the amended pleading, unless the court sets a different deadline.
- Courts can modify the deadline by order or scheduling order.
Conclusion
The response deadline after an amended complaint runs from the later of the time remaining on the original response period or 14 days after service of the amended pleading, not automatically a new full response period. Fed. R. Civ. P. 15(a)(3) governs unless the court orders otherwise.[1]