California doesn’t have a single “motion to dismiss” for evictions. To get an unlawful detainer case dismissed in California, a tenant files either a demurrer (attacking the complaint itself) or a motion to quash service (attacking how the papers were delivered), and it has to happen within five court days of being served with the summons and complaint.1California Courts. What Happens if Your Tenant Files a Response Miss that window and the landlord can take a default judgment and have the sheriff carry out the eviction, so the choice between these tools, and the speed of using them, is what the case turns on.
The Five-Day Clock
Unlawful detainer moves faster than almost any other lawsuit in California. Once the tenant is properly served with the summons and complaint, the response is due in five days. Saturdays, Sundays, and court holidays don’t count, but that’s the only slack. A tenant who does nothing loses by default: no hearing, no argument, and a writ of possession issued to the sheriff.2Judicial Branch of California. Eviction Cases in California
Three responses can be filed inside that window: an Answer (Form UD-105), a demurrer, or a motion to quash. Any one of them preserves the right to be heard. The right choice depends on what’s actually wrong with the landlord’s case.
Demurrer or Motion to Quash
These are the two procedural tools California uses for what most people call a motion to dismiss. Filing the wrong one wastes days you don’t have.
When to File a Demurrer
A demurrer is for problems inside the complaint. It argues that even if every fact the landlord alleges were true, the complaint still doesn’t state a legal basis for eviction.3California Legislative Information. California Code of Civil Procedure 430.10 It doesn’t introduce evidence and doesn’t dispute the landlord’s version of events. It says the paperwork itself is legally insufficient.
A demurrer must be set for hearing within 35 days. If the judge sustains it, the landlord may have to start over with a corrected notice or complaint. If the judge overrules it, the tenant has five calendar days to file an Answer.4Judicial Branch of California. California Rules of Court – Rule 3.1320 – Demurrers
When to File a Motion to Quash
A motion to quash is for problems with how the papers were delivered. If the landlord skipped personal service, used an unqualified server, or jumped past the required sequence of service methods, this motion challenges the court’s jurisdiction over the tenant.1California Courts. What Happens if Your Tenant Files a Response Win it and the landlord has to re-serve correctly. Lose it and the tenant must promptly file an Answer.
The distinction is simple: a demurrer attacks what the complaint says; a motion to quash attacks how it arrived. A tenant with both problems files both, because a service defect not raised early is waived.
Grounds That Support Dismissal
Landlords have to hit strict requirements at every step, and small mistakes can void the case. Four categories of defect drive most successful challenges.
A Defective Eviction Notice
Most cases go wrong at the notice. A 3-Day Notice to Pay Rent or Quit has to state the exact amount owed, the name and telephone number of the person authorized to accept payment, that person’s address, and either the usual days and hours payment can be made in person, a bank account within five miles of the property, or information about an established electronic payment method.5California Legislative Information. California Code of Civil Procedure 1161 A notice that overstates rent, omits the phone number, or gives the tenant no real way to pay is defective, and a defective notice can unravel the whole eviction. This is classic demurrer territory.
Premature Filing
An unlawful detainer complaint can’t be filed until the notice period has fully run. For a 3-Day Notice, those three days exclude Saturdays, Sundays, and court holidays.5California Legislative Information. California Code of Civil Procedure 1161 A complaint filed even one day early is premature and subject to dismissal on demurrer.
Improper Service of the Summons
Service has to follow a sequence. Personal service comes first: someone at least 18 years old and not a party to the case has to hand the papers directly to the tenant. If that fails, substituted service leaves the papers with another adult at the tenant’s home or workplace and follows up with a mailed copy. Posting and mailing needs a judge’s permission and is only available after personal and substituted service have both been attempted.6California Courts. Serve the Summons and Complaint Forms Mailing the papers without trying personal delivery, or leaving them on the doorstep when no one answers, is improper. Defective service is what a motion to quash is built for.
Landlord Accepted Rent After the Notice Expired
A landlord who takes rent after the notice period runs out may have waived the right to evict on that notice. California’s standard jury instructions treat this as an affirmative defense to a nonpayment unlawful detainer.7Justia. CACI No. 4324 – Affirmative Defense – Waiver by Acceptance of Rent This is a factual defense, so it belongs in the Answer, not a demurrer. Keep bank statements, cleared checks, and receipts showing the timing.
Preparing the Motion
Start with the eviction notice itself. If the challenge involves defects in the notice, the tenant needs to show exactly what it said and what it left out. Keep copies of the Summons (Form SUM-130) and Complaint (Form UD-100); those carry the case number, court location, and the landlord’s specific allegations.8Judicial Council of California. Summons – Eviction Gather anything else that fits the theory: proof the landlord accepted late rent, photos of a notice taped to a door with no mailing, records showing the filing beat the notice period.
A demurrer or motion needs three documents. The Notice of Motion tells the court and the landlord when and where the hearing will be. The Memorandum of Points and Authorities is the written legal argument, and it’s the document the judge relies on most heavily; it identifies the specific defect and cites the statutes the landlord violated. A declaration signed under penalty of perjury sets out the facts from the tenant’s personal knowledge. All forms are on the California Courts self-help website.
Filing and Serving the Motion
Moving papers have to be served and filed at least 16 court days before the hearing. Add five calendar days if served by mail within California.9California Legislative Information. California Code of Civil Procedure 1005 Work backward from the earliest available hearing date; on an unlawful detainer timeline, a few days of delay can make it impossible to get a hearing scheduled at all.
Prepare at least two full sets plus a copy for personal records. Take everything to the clerk at the courthouse where the case was filed. The clerk stamps all sets and keeps the original. The filing fee for a motion is $60.10California Legislative Information. California Government Code 70617 A tenant who can’t afford it can apply for a fee waiver on Form FW-001, available to people receiving public benefits or earning under certain income thresholds.11California Courts. Request to Waive Court Fees
Then the landlord (or the landlord’s attorney) has to be formally served with the filed motion. The tenant can’t do this personally. Another adult, not a party to the case, mails or delivers the documents and completes a Proof of Service by First-Class Mail (Form POS-030), which gets filed with the court.12California Courts Self-Help Guide. Proof of Service by First-Class Mail – Civil
The Hearing and What “Dismissed” Actually Means
Judges in unlawful detainer matters have usually read the papers before the hearing, so oral argument tends to be short. Focus on the strongest defect rather than listing every possible one.
If the court rules for the tenant, the case is dismissed and the eviction stops. But that dismissal is almost always “without prejudice.” The landlord can fix the defect and start over: a bad 3-Day Notice can be redrafted, re-served, and refiled. Dismissal buys time; it rarely ends the dispute for good.
If the court rules against the tenant on a demurrer, the case moves forward and the tenant has just five calendar days to file an Answer.4Judicial Branch of California. California Rules of Court – Rule 3.1320 – Demurrers Missing that deadline produces a default. Draft the Answer alongside the motion so the follow-up filing is ready. From there, California law requires trial no later than 20 days after a party requests a trial date.13California Legislative Information. California Code of Civil Procedure 1170.5
What Dismissal Does to Your Record
An unlawful detainer filing is automatically restricted from general public access for 60 days after the complaint is filed. During that window, only the parties, their attorneys, and a few narrowly defined others with specific identifying information can view the file.14California Legislative Information. California Code of Civil Procedure 1161.2
If the case is dismissed within those 60 days, the restriction stays in place indefinitely. The file never becomes the kind of public record that tenant screening companies harvest. If the landlord wins within 60 days, the records open once that window passes; if the landlord wins after trial past 60 days, they open when judgment is entered.14California Legislative Information. California Code of Civil Procedure 1161.2 A successful demurrer or motion to quash almost always finishes inside the 60-day window, which is what keeps the case off future screening reports.
Mistakes That Sink These Motions
The most common mistake is running out of time. Tenants who spend two weeks researching before contacting the court often discover the five-day response deadline has already passed.
The second is filing the wrong tool. Challenging service through a demurrer, or attacking the complaint’s legal sufficiency through a motion to quash, signals that the tenant doesn’t understand the process and weakens credibility with the judge.
The third is raising factual disputes in a demurrer. A demurrer only tests whether the complaint is legally sufficient on its face. “I actually paid the rent” is a factual defense that belongs in the Answer. A demurrer that tries to introduce disputed facts gets overruled, and the days spent on it are gone.
The last is assuming a filed response freezes the case. It doesn’t. The demurrer hearing has to happen within 35 days, and if the tenant loses, five calendar days later the Answer is due. Prepare the Answer at the same time as the motion so the next deadline doesn’t catch you empty-handed.