CCP Chapter 14: Filing a Motion to Quash in California

Filing a motion to quash in California is how a defendant challenges a court’s power over them before answering the complaint. The vehicle is California Code of Civil Procedure § 418.10, and it has to be filed on or before the last day you would otherwise have to respond to the complaint. Miss that window, or take almost any other action in the case first, and the objection is gone for good.

What You Can Challenge

Section 418.10 lets you ask the court to do one of three things, and you can combine them in a single motion.

The first and most common ground is lack of personal jurisdiction. You are arguing the court has no authority over you because your ties to California are not strong enough to justify being sued here. The second is inconvenient forum, meaning California is the wrong place to litigate even if the court technically could hear the case; if the judge agrees, the action is stayed or dismissed so it can proceed elsewhere.¹ The third is defective service of process. California has specific rules about how and on whom a summons must be served, and this is where self-represented defendants most often find traction, because service errors are common. If the process server left papers with the wrong person, served the wrong address, or skipped a step in substitute service, the court’s authority over you never attached.

When You Have to File

The deadline is the last day you are allowed to respond to the complaint, which is generally 30 days after you were served. The court can grant more time for good cause, but relying on that is a bad bet.¹

Filing the motion automatically extends your time to answer. If the motion is denied, you get 15 days from service of the written notice of denial to file your answer, and the court can add up to 20 more days for good cause.¹

The waiver trap matters as much as the deadline. If you file a demurrer or a motion to strike without also filing a motion to quash at the same time, you waive your right to challenge personal jurisdiction, service, and forum. The statute does not forgive this.¹

What Goes in the Filing

California Rules of Court, Rule 3.1112 sets the minimum papers for a civil motion. Your package needs:

A notice of motion identifying the relief requested, the grounds, and the hearing date, time, and department.²
A memorandum of points and authorities citing the statutes and cases that support your position.³
One or more declarations signed under penalty of perjury laying out the facts: where you actually live and work, your lack of connection to California, or exactly how the service was carried out and why it fell short.³

Many filings use Judicial Council forms available on the California Courts website.⁴ Some county superior courts also require local forms, so check with your courthouse before filing. A rejected filing can cost you the deadline.

The first-appearance filing fee in an unlimited civil case (amounts over $25,000) is $435.⁵ Limited civil cases cost less, and a fee waiver is available if you cannot afford it.

After the clerk accepts your filing, serve the motion package on the opposing party by personal delivery, mail, or electronic service if the parties have agreed to it, and file a proof of service with the court.⁶

Protecting Your Appearance

A motion to quash is a special appearance. You are showing up only to contest the court’s authority, not to submit to it. As long as you keep your participation limited to the jurisdictional challenge, the court does not acquire power over you on the merits.¹

A general appearance is the opposite. Filing an answer, serving discovery, or asking the court for affirmative relief all count. Once you make a general appearance, your objection to personal jurisdiction and service is permanently waived.⁷

Section 418.10(e) gives you a safeguard. You can file the motion to quash and at the same time file an answer, a demurrer, or a motion to strike without turning your appearance into a general one. Those simultaneous filings do not count as an appearance unless the court later denies your motion to quash.¹ That way you keep your jurisdictional challenge alive while also protecting your position on the merits if you lose.

Who Has to Prove What

Once you file, the plaintiff carries the burden of proving that service was valid and that the court has jurisdiction over you. You are not required to prove a negative. You do, however, have to put enough facts in your declarations to create a genuine dispute. A bare assertion that the court lacks jurisdiction, with nothing behind it, will not do the work.

Under CCP § 1005, opposition papers are due at least nine court days before the hearing, and any reply is due at least five court days before. The court can shorten those windows, but that is uncommon.⁸ At the hearing, the judge takes argument from both sides. If the plaintiff cannot show valid service and sufficient contacts, the motion should be granted.

If the Court Denies the Motion

A denial is not the end of the road. Section 418.10(c) lets you petition the Court of Appeal for a writ of mandate asking the appellate court to reverse the trial court. The petition has to be filed within 10 days after you are served with written notice of the denial order, and the trial court can extend that by up to 20 days for good cause.¹

To pause trial court proceedings while the writ is pending, serve and file a notice in the trial court stating that you have petitioned for the writ. That notice has to go out on or before the last day of your time to file a responsive pleading. Once it is filed, your deadline to answer extends until 10 days after you receive written notice of the final judgment in the writ proceeding, with up to 20 additional days available for good cause.¹ If the Court of Appeal denies the writ, you file your answer in the trial court and the case moves forward with jurisdiction settled.

If Your Case Is in Federal Court

Section 418.10 is a state court tool. In federal court, the equivalent challenge is a motion to dismiss under Federal Rule of Civil Procedure 12(b): Rule 12(b)(2) for lack of personal jurisdiction, Rule 12(b)(5) for defective service. The waiver rules bite in a similar way. Under Rule 12(h)(1), you lose a personal jurisdiction defense if you leave it out of your first Rule 12 motion or your initial responsive pleading.⁹

1
California Legislative Information. California Code CCP 418.10
2
Judicial Branch of California. California Rules of Court 2026 – Rule 3.1110 General Format
3
Judicial Branch of California. Rule 3.1112 Motions and Other Pleadings
4
California Courts. Find and Fill Out Court Forms
5
Judicial Council of California. Statewide Civil Fee Schedule
6
California Courts. Proof of Service – Civil (POS-040)
7
Judicial Branch of California. Rule 5.62 Appearance by Respondent
8
California Legislative Information. California Code of Civil Procedure CCP 1005
9
Legal Information Institute. Rule 12 Defenses and Objections