The deadline to respond to a complaint in California is 30 calendar days from the date you were served. Weekends and court holidays count, but the type of service you received can push the start date later, and eviction cases run on a much shorter clock. Miss the deadline and the plaintiff can take a default judgment against you without your side ever being heard.
The 30-Day Rule
California’s Code of Civil Procedure requires the summons to direct the defendant to file a written response within 30 days after service.1California Legislative Information. California Code of Civil Procedure Section 412.20 A response can be an answer (admitting or denying each allegation), a demurrer (arguing the complaint is legally deficient), or a motion to strike part of it. Most defendants file an answer.
Those 30 days are calendar days, so Saturdays, Sundays, and holidays all count toward the total. If day 30 lands on a weekend or court holiday, the deadline rolls to the next business day.2Judicial Branch of California. California Rules of Court 2026 Rule 1.10 – Time for Actions California recognizes more court holidays than many people expect, including Cesar Chavez Day on March 31, Admission Day on September 9, and any day the Governor or President declares a public holiday.
Waiting until day 30 is risky. If you find a problem with your paperwork the day before, you have almost no room to fix it.
When the Clock Actually Starts
The 30 days do not always begin the moment papers hit your hand. How you were served determines the start date.
Personal Service
When a process server delivers the summons and complaint to you directly, the countdown begins the next day.3Justia. California Code of Civil Procedure 415.10-415.95 This is the tightest scenario.
Substituted Service
If a process server cannot reach you after reasonable attempts, they may leave the documents with a responsible adult at your home or workplace and mail a copy to the same address. Service is not complete until 10 days after the mailing.4California Legislative Information. California Code of Civil Procedure CCP 415.20 Your 30 days then run from that completion date, which puts you about 40 days out from the mailing.
Mail With Acknowledgment
A plaintiff can mail you the summons and complaint together with an acknowledgment form. You have 20 days to sign and return the acknowledgment. Service is deemed complete on the date you sign it, and the 30-day response window runs from there.5Justia. California Code of Civil Procedure 415.10-415.95 – Section 415.30 Ignoring the form does not stop the case; the plaintiff will serve you another way, and you may end up paying for that service.
Out-of-State or International Service
If you were served outside California by mail with return receipt, service is not complete until the mailing process finishes, which adds time beyond the standard 30 days.6Justia. California Code of Civil Procedure 415.10-415.95 – Section 415.40 Service outside the United States runs under the Hague Service Convention or another applicable treaty and can take considerably longer. The summons itself should state your deadline. If the math is unclear, get advice before assuming you have extra time.
Eviction Cases Run Much Faster
An unlawful detainer complaint is not a standard civil case for deadline purposes. Tenants get 10 court days to file an answer after personal service.7California Courts | Self Help Guide. Fill Out an Answer Form in an Eviction Case Court days skip Saturdays, Sundays, and court holidays, so 10 court days is roughly two calendar weeks.
Other service methods stretch it slightly:
- Substituted service or posting and mailing: 20 days after mailing (10 calendar days plus 10 court days).
- Safe at Home program participants: 15 court days after service.
A missed eviction response almost always ends in a default judgment and a swift loss of housing. County legal aid programs can often help if you cannot afford a lawyer, but a few days of delay eats most of the window.
Getting More Time
The simplest way to extend your deadline is to ask the plaintiff’s attorney for a stipulation. Extensions of 15 to 30 days are common, especially when settlement talks are underway. Put the agreement in writing and file it with the court.
If the plaintiff will not agree, you can file an ex parte application asking the judge for more time.8Judicial Branch of California. California Rules of Court Rule 3.1200 – Application You will need a sworn declaration explaining why. Reasons that tend to work include still looking for an attorney, a medical emergency, or having been out of state when served. Judges look at good faith and whether the delay would harm the plaintiff. A last-minute request with no explanation for the delay is usually denied.
Under CCP 1054(a), the parties can also agree to an early organizational meeting, which can extend the response deadline by up to another 30 days in courts that have adopted the procedure.
Filing the Response
File your response with the same court where the plaintiff filed the complaint. The summons lists the court’s name and address. Civil cases are heard in Superior Court and split into unlimited civil (more than $25,000) and limited civil ($25,000 or less).9Judicial Branch of California. Information on Appeal Procedures for Unlimited Civil Cases Small claims cases work differently and do not require a formal written response, so this deadline does not apply there.10Judicial Branch of California. Small Claims in California
Filing with the court is only half the job. You also have to deliver a copy of your response to the plaintiff or their attorney and then file a proof of service showing when and how you did it.11California Courts | Self Help Guide. Fill Out Answer Form to Respond Skipping that step causes problems even when the answer itself was filed on time.
What Happens If You Miss the Deadline
Missing the deadline is really a two-step problem. First, the plaintiff asks the court clerk to enter your default, a formal record that you failed to respond on time. Once the default is entered, you lose the right to participate. You cannot file an answer, present evidence, or argue at trial.12California Courts | Self Help Guide. How to Ask for a Default and a Default Judgment
Second is the default judgment itself. If the case involves a straightforward contract debt with a fixed dollar amount, the clerk may enter judgment without a hearing. For other cases, a judge reviews the claimed damages. Either way, the court decides based only on what the plaintiff submitted.13California Legislative Information. California Code of Civil Procedure Section 585
Once judgment is entered, the plaintiff can obtain a writ of execution telling the sheriff to seize bank accounts, garnish wages, or levy other assets.14Justia. California Code of Civil Procedure 699.510-699.560 The unpaid balance accrues interest at 10% per year.15California Legislative Information. California Code of Civil Procedure Section 685.010 The judgment can also appear on your credit report and create liens against any California real estate you own.
Setting Aside a Default
A default is not always the end of the road. Under CCP 473(b), you can file a motion to set it aside within six months of the entry of default.16California Legislative Information. California Code of Civil Procedure Section 473 You need to show mistake, inadvertence, surprise, or excusable neglect. Courts read those terms broadly enough to cover serious illness, reliance on a lawyer who abandoned the case, or genuine confusion about the deadline.
If your attorney was the one who missed the deadline and submits a sworn declaration taking responsibility, the court is required to set aside the default. That mandatory relief exists so clients do not lose their case permanently because of a lawyer’s error.
If you never actually learned about the lawsuit, a different rule applies. Under CCP 473.5, you can move to set aside the default within two years of the judgment or within 180 days of receiving written notice of it, whichever comes first. This comes up most often with substituted service, when papers were left with a roommate or coworker who never passed them on.
File the motion as soon as you learn about the default. Judges are more receptive to defendants who move quickly than to those who wait months and then claim surprise. If the motion is granted, the default is erased and the case moves forward as if you had responded on time.