How long do you have to amend a complaint?

The time allowed to amend a complaint varies by jurisdiction and the specific rules governing the case. Generally, under the Federal Rules of Civil Procedure, a party can amend its complaint once as a matter of course within 21 days after serving it, or if the amendment is made after a responsive pleading, within 21 days after that pleading is served. After this period, a party typically needs to obtain permission from the court or consent from the opposing party to amend the complaint. Always check local rules for specific timelines and procedures.