What Is a Demurrer in California?
A demurrer is California's equivalent of a motion to dismiss for failure to state a claim, but it reaches other defects too. It lies only where the ground for objection "appears on the face" of the pleading "or from any matter of which the court is required to or may take judicial notice." (Code Civ. Proc. § 430.30(a).) Extrinsic evidence is off the table. If your attack depends on facts outside the pleading, you need a different vehicle.
On review, the court treats the demurrer "as admitting all material facts properly pleaded, but not contentions, deductions or conclusions of fact or law." (Blank v. Kirwan (1985) 39 Cal.3d 311, 318.) The court gives the pleading a reasonable interpretation, reading it as a whole and considering judicially noticed matter. (Aubry v. Tri-City Hospital Dist. (1992) 2 Cal.4th 962, 966–967.) That is the demurrer standard California courts apply, and it cuts both ways: conclusory allegations get no deference, but a plaintiff's plausible factual theory does.
When should you file a demurrer?
You can demur and answer at the same time. A demurrer is not waived by an answer filed simultaneously (Code Civ. Proc. §§ 430.30(c), 472a(a)), and you may demur to one cause of action without answering the others (Cal. Rules of Court, rule 3.1320(b)). Tactically, filing a California demurrer makes sense when:
- One or more causes of action are legally defective as pleaded and the defect matters (a barred theory, a missing element that cannot honestly be alleged, a claim that changes the discovery or damages picture).
- Judicially noticeable material, such as a prior court record, defeats the claim on its face.
- The pleading is so uncertain you genuinely cannot frame an answer or affirmative defenses.
When is a demurrer a waste of a motion cycle?
A demurrer makes less sense when the defect is a drafting slip the plaintiff will cure in ten days. In that scenario, the motion often accomplishes little beyond educating your opponent about the weaknesses in their pleading and handing them a roadmap for the amendment.
Section 430.41(e) now caps a complaint at three amendments in response to demurrers before the case is at issue (and the cap yields if the plaintiff offers the trial court additional facts showing a reasonable possibility the defect can be cured), so repeated demurrers can eventually box a plaintiff in, but each round costs you a motion cycle. Before filing, weigh the cost of the cycle against what the demurrer actually achieves if sustained with leave to amend.
What Are the Grounds for Demurrer Under CCP § 430.10?
Code of Civil Procedure section 430.10 lists eight grounds for demurrer in California:
| Ground |
Statute |
Type |
| Court lacks subject matter jurisdiction |
§ 430.10(a) |
General |
| Plaintiff lacks legal capacity to sue |
§ 430.10(b) |
Special |
| Another action pending between the same parties on the same cause of action |
§ 430.10(c) |
Special |
| Defect or misjoinder of parties |
§ 430.10(d) |
Special |
| Failure to state facts sufficient to constitute a cause of action |
§ 430.10(e) |
General |
| Uncertainty ("ambiguous and unintelligible") |
§ 430.10(f) |
Special |
| Contract action where it cannot be ascertained whether the contract is written, oral, or implied |
§ 430.10(g) |
Special |
| No certificate filed as required by section 411.35 |
§ 430.10(h) |
Special |
General demurrer vs. special demurrer in California
The general demurrer, subdivision (e), is the workhorse: the pleading fails to state facts sufficient to constitute a cause of action. Subdivision (a), lack of subject matter jurisdiction, is also general. Everything else is a special demurrer attacking form rather than substance.
The distinction matters for waiver. Under section 430.80, failure to raise a ground by demurrer or answer waives it, with two exceptions: subject matter jurisdiction and failure to state a cause of action survive. Every special demurrer ground recognized in California must be raised at the pleading stage or it is gone.
Special demurrer grounds are use-it-or-lose-it under CCP § 430.80. Uncertainty, capacity, misjoinder, another action pending, and the § 430.10(g) contract-form objection are all waived if not raised by demurrer or answer. Audit every ground before your response deadline runs.
Demurrer for uncertainty under CCP 430.10(f)
A demurrer for uncertainty under section 430.10(f) targets pleadings that are "ambiguous and unintelligible." Courts sustain these sparingly. Reserve it for pleadings where you truly cannot tell what claims are asserted against which defendant, and pair it with a general demurrer where possible. A standalone uncertainty demurrer against a sloppy but comprehensible complaint usually earns an overruling and a wasted motion cycle.
What Are the Demurrer Deadlines and Meet-and-Confer Requirements in California?
The deadline to file a demurrer in California runs from service, not filing, and section 430.41 imposes a mandatory meet-and-confer process before you file. Miss the conference requirement and you complicate your filing; handle it well and it can extend your deadline.
The five-day rule and the automatic 30-day extension
Before filing, the demurring party must meet and confer in person, by telephone, or by video conference with the party who filed the challenged pleading. (Code Civ. Proc. § 430.41(a), as amended by AB 1756, eff. Jan. 1, 2024.) You must identify with legal support the specific causes of action you contend are deficient, and the other side must respond with the legal support for its position. (§ 430.41(a)(1).)
The conference must occur at least 5 days before your responsive pleading is due. If it does not, you may file a declaration stating that a good faith attempt to meet and confer was made and explaining why the parties could not confer. Filing that declaration on or before the due date grants an automatic 30-day extension, running from the date the responsive pleading was previously due. No default may be entered during the extension. (§ 430.41(a)(2).)
The § 430.41(a)(2) declaration is the cleanest deadline extension in California pleading practice. If the 30-day clock is running short and opposing counsel is slow to confer, file the declaration on or before the due date and take the automatic 30 days. Judicial Council form CIV-141 is available for the automatic-extension declaration (form CIV-140 is the meet-and-confer declaration filed with the demurrer itself).
The declaration filed with the demurrer
When you file the demurrer itself, it must be accompanied by a declaration stating either the means by which you met and conferred and that the parties did not reach agreement, or that the opposing party failed to respond or failed to confer in good faith. (§ 430.41(a)(3).) One safety valve: a court cannot overrule or sustain a demurrer because the meet-and-confer process was insufficient. (§ 430.41(a)(4).)
Two more section 430.41 rules shape strategy. On a demurrer to an amended pleading, you may not raise grounds that could have been raised against the earlier version. (§ 430.41(b).) And if your demurrer is overruled and that cause of action is not further amended, the issue is preserved for appeal after final judgment without re-filing. (§ 430.41(g).)
A substantive meet-and-confer letter, with authority attached to each identified defect, does double duty: it satisfies the statute and builds the record for a no-leave argument later. The same documentation discipline carries into discovery motion practice, where a deficient declaration can defeat a request for discovery sanctions in California. Legion drafts meet-and-confer letters as one of its production workflows, and Centurion, its built-in analyst, runs element-by-element demurrer-risk analysis on complaints, which maps directly onto the § 430.41(a)(1) requirement to identify deficient causes of action with legal support.
The complete California demurrer timeline
Here is the full California demurrer timeline in one table:
| Event |
Deadline |
Authority |
| Demurrer to complaint or cross-complaint |
30 days after service |
CCP § 430.40(a) |
| Demurrer to answer |
10 days after service of the answer |
CCP § 430.40(b) |
| Meet and confer |
At least 5 days before responsive pleading due |
CCP § 430.41(a)(2) |
| Automatic extension declaration |
On or before the responsive pleading due date; grants 30 days from the prior due date |
CCP § 430.41(a)(2) |
| Hearing date |
Not more than 35 days after filing, or first available date |
CRC rule 3.1320(d) |
| Answer after demurrer overruled |
Within 10 days (5 in unlawful detainer), unless otherwise ordered |
CRC rule 3.1320(g); CCP § 472a(b) |
| Amend after demurrer sustained with leave |
Within 10 days, unless otherwise ordered |
CRC rule 3.1320(g) |
Statutory service-method extensions can add time to the 30-day and 10-day triggers; calendar from the proof of service and confirm the method used. And remember that answering some causes of action while demurring to others is permitted, so a partial demurrer does not put the un-demurred claims into default territory. (Cal. Rules of Court, rule 3.1320(b).)
How Do You File or Oppose a Demurrer in California?
Knowing how to file a demurrer in California is mostly a matter of assembling the right paper stack and following rule 3.1320. Opposing one is a matter of defending the pleading as written and carrying the burden on amendment. Both sides are covered below.
The filing package
- Demurrer. Each ground stated in a separate paragraph, specifying whether it goes to the entire pleading or to specified causes of action. (Cal. Rules of Court, rule 3.1320(a).) The caption must name the demurring party and the party whose pleading is challenged. (Rule 3.1320(e).)
- Notice of hearing. Filed with the demurrer, with the hearing set per CCP § 1005 notice requirements and no more than 35 days out. (Rule 3.1320(c), (d).)
- Memorandum of points and authorities. The argument lives here: elements, defects, authority, and why leave to amend should be denied.
- Meet-and-confer declaration. Required by § 430.41(a)(3), as discussed above.
- Request for judicial notice, if your attack relies on court records or other noticeable material under § 430.30(a).
- Proposed order.
Working from a California demurrer sample or template is fine for structure, but the separate-paragraph and scope-specification requirements of rule 3.1320(a) trip up filers who copy a federal motion-to-dismiss format. Each ground gets its own paragraph, each identifying the statutory subdivision and the causes of action it targets.
Legion generates each piece of this package on compliant California pleading paper: the memorandum of points and authorities (with an auto-generated table of contents and table of authorities on briefs over 10 pages), the notice of motion, declarations, the request for judicial notice, and the proposed order, all as court-ready Word documents or bookmarked PDFs.
Drafting the argument
Structure the memorandum around the Blank v. Kirwan framework. For each targeted cause of action, list the elements, quote the operative allegations, and show which element is missing or negated. Because the court disregards "contentions, deductions or conclusions of fact or law" (Blank v. Kirwan, supra, 39 Cal.3d at p. 318), isolate the conclusory allegations and show that nothing factual remains once they are stripped out.
Then argue leave to amend in the demurrer itself, not just at the hearing. If this is a second or third round, invoke § 430.41(b) (no new grounds means the plaintiff has already had notice of these defects) and the § 430.41(e) three-amendment limit.
Opposing a demurrer in California
An effective opposition to a demurrer in California does two things. First, it defends the pleading as written, reminding the court that allegations are accepted as true and reasonably interpreted. (Aubry v. Tri-City Hospital Dist., supra, 2 Cal.4th 962.) Second, it carries the plaintiff's burden on amendment: state the specific new facts you would allege and how they satisfy the missing element. A vague request to "have an opportunity to amend" does not carry the Blank burden.
Also check your as-of-right amendment window. Under section 472(a), a party may amend once without leave of court before the demurrer is heard, if the amended pleading is filed and served no later than the date the opposition is due. (Anti-SLAPP motions are excluded from this mechanism. Code Civ. Proc. § 472(b).) An early amendment that moots the demurrer can save a motion cycle, but it burns one of the three amendments allowed under § 430.41(e).
If you are still building the operative pleading, start with the fundamentals in How to Draft a Complaint in California; a complaint that pleads every element with facts, not conclusions, is the cheapest demurrer defense available. Running Centurion's element-by-element demurrer-risk analysis before filing serves the same purpose from the other direction: it surfaces the weak elements a demurring defendant will target.
What Happens After a Demurrer Is Sustained or Overruled?
The demurrer cycle ends with a hearing and a ruling that takes one of three forms: overruled, sustained with leave to amend, or sustained without leave. Here is how the hearing works and what each outcome means.
What happens at a demurrer hearing?
If you have never argued one, here is what happens at a demurrer hearing in most California departments. The court typically issues a tentative ruling before the hearing. If neither side contests it, the tentative usually becomes the order. If a party contests, argument is generally short and focused on the tentative's reasoning.
Appearance matters. When a demurring party fails to appear, the demurrer "must be disposed of on the merits at the request of the party appearing," and failure to appear in support of a special demurrer may be treated as a waiver of all its grounds. (Cal. Rules of Court, rule 3.1320(f).)
The three possible rulings
Overruled. The pleading survives. The demurring party must answer within 10 days (5 in unlawful detainer) unless the court orders otherwise; leave to answer is deemed granted. (Rule 3.1320(g); Code Civ. Proc. § 472a(b).) If that cause of action is not further amended, the issue is preserved for appeal after final judgment without further motion practice. (§ 430.41(g).) At that point the defense pivots to the answer; Centurion flags affirmative-defense and waiver issues on answers, which matters because § 430.80 waiver applies to grounds not raised by demurrer or answer. Once issue is joined, the case moves into written discovery; the California discovery objections cheat sheet covers that next phase.
Sustained with leave to amend. The plaintiff has 10 days to amend unless the order says otherwise. (Rule 3.1320(g).) The court may grant leave "upon any terms as may be just," subject to the three-amendment cap of § 430.41(e) (which applies before the case is at issue and yields to a showing that amendment could cure the defect). (Code Civ. Proc. § 472a(c).)
Sustained without leave to amend. The claim is dead at the pleading stage. Once the case is dismissed, the ruling is appealable.
If the plaintiff fails to amend
When a demurrer is sustained with leave and the plaintiff does not amend within the allotted time, the defendant may move ex parte to dismiss under rule 3.1320(h) and Code of Civil Procedure section 581(f)(2). Calendar the amendment deadline and file promptly; the case does not dismiss itself.
When will the court grant leave to amend after a sustained demurrer?
Almost always, on a first demurrer. The controlling standard: when a demurrer is sustained without leave to amend, the reviewing court decides "whether there is a reasonable possibility that the defect can be cured by amendment: if it can be, the trial court has abused its discretion"; and "[t]he burden of proving such reasonable possibility is squarely on the plaintiff." (Blank v. Kirwan, supra, 39 Cal.3d at p. 318.)
Defense-side strategy: earning "without leave"
To get a demurrer sustained without leave, show the defect is legal and incurable: a claim barred as a matter of law, an element the plaintiff cannot allege consistent with facts already pleaded or judicially noticed, or a plaintiff who has already had multiple chances. Track the amendment history and cite § 430.41(e)'s three-amendment cap when applicable. Your meet-and-confer correspondence, which identified the defects with legal support before round one, is useful evidence that the plaintiff has known about and failed to cure the problem.
The Aubry trap for plaintiffs: if a demurrer is sustained with leave and you amend rather than stand on the pleading, you generally waive appellate review of the ruling as to the amended counts. (Aubry v. Tri-City Hospital Dist. (1992) 2 Cal.4th 962, 966, fn. 2.) If a dismissed theory is central to the case, consider declining to amend that count so the ruling can be tested on appeal from the judgment.
FAQ: Demurrer Practice in California
What is a demurrer in plain terms?
A demurrer is a written objection arguing that a pleading is legally insufficient even if everything in it is true. The court looks only at the pleading's face and judicially noticeable matter (Code Civ. Proc. § 430.30(a)), and treats all properly pleaded facts as admitted (Blank v. Kirwan (1985) 39 Cal.3d 311, 318).
What is a special demurrer in California?
A special demurrer attacks form rather than substance: uncertainty under § 430.10(f), lack of capacity, misjoinder, another action pending, or the contract-form defect under § 430.10(g). These grounds are waived if not raised by demurrer or answer (Code Civ. Proc. § 430.80), unlike the general demurrer grounds of failure to state a claim and lack of subject matter jurisdiction.
Can I file a demurrer to an answer in California?
Yes. A demurrer to an answer must be filed within 10 days after service of the answer. (Code Civ. Proc. § 430.40(b).) It is most useful against boilerplate affirmative defenses pleaded as bare legal conclusions with no supporting facts.
What does a sustained demurrer mean?
A sustained demurrer means the court agreed the pleading is defective. If sustained with leave, the pleading party typically has 10 days to file an amended pleading (Cal. Rules of Court, rule 3.1320(g)); if without leave, the claim is eliminated and, once dismissed, the ruling is appealable. If the plaintiff fails to amend on time, the defendant can move ex parte to dismiss. (Rule 3.1320(h); Code Civ. Proc. § 581(f)(2).)
Do I have to meet and confer before every demurrer?
Yes, under Code of Civil Procedure section 430.41(a): in person, by telephone, or by video conference, at least 5 days before your response is due, with a declaration filed alongside the demurrer. An insufficient meet-and-confer is not itself grounds to overrule or sustain the demurrer (§ 430.41(a)(4)), but skipping the declaration invites problems at filing.
How many times can a complaint be amended in response to demurrers?
Section 430.41(e) caps amendments in response to demurrers at three before the case is at issue, unless the plaintiff offers the trial court additional facts showing a reasonable possibility the defect can be cured. This makes each amendment count, and it gives defendants a concrete argument against further leave once a plaintiff has cycled through multiple failed versions of the pleading.
A sample is fine for the shell, but conform it to rule 3.1320: each ground in a separate paragraph, each specifying whether it attacks the whole pleading or identified causes of action, with the required caption format. The substance, an element-by-element takedown of each targeted cause of action, has to be built from your case, and every draft needs full attorney review before filing regardless of how it was generated.
Does an overruled demurrer waive the issue for appeal?
No. If the demurrer is overruled and that cause of action is not further amended, section 430.41(g) preserves the issue for appeal after final judgment without re-filing. The waiver risk runs the other direction: a plaintiff who amends after a demurrer is sustained generally waives appellate review of that ruling as to the amended counts. (Aubry v. Tri-City Hospital Dist. (1992) 2 Cal.4th 962, 966, fn. 2.)
Take the Next Step
Whether you are attacking a defective complaint or defending one, the demurrer cycle is document-heavy: meet-and-confer letters, the memorandum with TOC and TOA, declarations, requests for judicial notice, and the amended pleading or answer that follows. Legion drafts each of these as court-ready California filings, and Centurion pressure-tests your complaint element by element before opposing counsel does. Get started with Legion and see the demurrer workflow on your own pleadings.
