To serve a subpoena in California civil court, you personally hand the document to the witness within the statutory notice window, offer the daily witness fee and mileage at the moment of delivery, and then file a proof of service with the court. The specifics — how many days ahead, what fee to bring, whether a privacy notice must go out first — depend on which of the three civil subpoena types you’re using and whether the target is a person, an organization, or a minor.
Match the Subpoena Type to What You Need
California recognizes three civil subpoenas, and the service rules diverge from there.
- A subpoena for personal attendance at trial or hearing compels a witness to appear and testify. It can add a “duces tecum” clause requiring the witness to bring specified documents or electronically stored information. When a duces tecum subpoena is issued before trial, it must be accompanied by an affidavit showing the requested materials are relevant and that the witness controls them.1California Legislative Information. California Code CCP – 1985 Means of Production
- A deposition subpoena for personal appearance requires the witness to attend an out-of-court deposition and give sworn testimony. It must state the time and location and include a summary of the witness’s rights, duties, and penalties for disobedience.2California Legislative Information. California Code CCP 2020.310
- A deposition subpoena for production of business records tells a custodian of records to deliver copies to the deposition officer without appearing in person. No good-cause affidavit is required. The custodian complies by delivering a true copy along with an affidavit certifying authenticity.3California Legislative Information. California Code CCP 2020.4104California Legislative Information. California Code CCP 2020.430
Who Can Serve It
For a trial subpoena, any person may make the service.5California Legislative Information. California Code CCP 1987 The statute sets no minimum age and does not prohibit a party to the case from serving. In practice, attorneys, paralegals, and professional process servers do most of the delivering, but the code itself doesn’t require them.
Deposition subpoenas follow the same open rule: any person may serve one by personal delivery.6California Legislative Information. California Code CCP 2020.220 Don’t confuse this with federal court practice, where the server must be at least 18 and cannot be a party.
Delivery Has to Be In Person
Every California civil subpoena requires personal delivery. For a trial subpoena, the server hands a copy of the subpoena (or a ticket containing its substance) directly to the witness.5California Legislative Information. California Code CCP 1987 Mail doesn’t count. Leaving it at the door doesn’t count. Email doesn’t count. Without personal delivery, the court has no basis to enforce compliance.
Serving an Organization
If the recipient is a business or other organization, service is made by personal delivery to any officer, director, custodian of records, or any agent or employee the organization has authorized to accept service.6California Legislative Information. California Code CCP 2020.220 You don’t have to find the CEO. A designated front-desk employee is enough.
Serving a Minor
If the witness is a minor, service goes to the minor’s parent, guardian, conservator, or similar fiduciary. If none of those people can be found with reasonable diligence, the server may deliver to any person who has care or control of the minor. When the minor is 12 or older, that minor must also be personally served, in addition to the responsible adult.5California Legislative Information. California Code CCP 1987
How Much Advance Notice Is Required
Timing is where subpoenas most often get quashed. The required lead time depends on the type of subpoena and what it demands.
- Trial subpoena. Service must occur “a reasonable time” before the appearance date, giving the witness time to prepare and travel. Courts will quash a subpoena served so late that compliance was impossible.5California Legislative Information. California Code CCP 1987
- Standard deposition subpoena. The deposition must be scheduled at least 10 days after service of the notice.7California Legislative Information. California Code CCP 2025.270
- Unlawful detainer cases. The minimum drops to 5 days after service, and the deposition must also occur at least 5 days before trial.7California Legislative Information. California Code CCP 2025.270
- Consumer or employment records. When the subpoena commands production of a consumer’s personal records or an employee’s employment records, the deposition must be scheduled at least 20 days after the subpoena was issued.7California Legislative Information. California Code CCP 2025.270
- Business records only, no testimony. The compliance date must be no earlier than 20 days after issuance or 15 days after service, whichever is later.3California Legislative Information. California Code CCP 2020.410
A court can shorten or extend any of these deadlines for good cause on a motion or ex parte application by any party or deponent.7California Legislative Information. California Code CCP 2025.270
Witness Fees and Mileage You Must Bring
At the moment of service, the server must offer the witness one day of attendance fees plus travel mileage. If the witness asks for the money on the spot, hand it over.5California Legislative Information. California Code CCP 1987 Failing to offer the fees gives the witness a valid reason to ignore the subpoena.
The statutory rate is $35 per day of actual attendance, plus $0.20 per mile for the round trip between the witness’s residence and the required location.8California Legislative Information. California Government Code 68093 These amounts are set by statute and have not moved in decades. For a witness 25 miles from the courthouse, the combined figure is $45. Calculate it in advance and bring the exact amount to the service appointment.
Extra Step for Consumer or Employment Records
This is where careful people still get tripped up. If your subpoena seeks personal records of a consumer (bank records, medical files, phone records) or the employment records of an employee, you must notify the person whose records are being requested before the custodian produces them. Serving the custodian and collecting the files is not enough.
For consumer records, the subpoenaing party serves the consumer with a copy of the subpoena, any supporting affidavit, and a notice explaining that their records are being sought and that they have a right to object. That notice must be served at least 10 days before the production date and at least 5 days before the custodian is served, with additional time added if service is by mail.9California Legislative Information. California Code CCP 1985.3
Employment records carry nearly identical notice requirements. The employee receives a copy of the subpoena and a notice that their records may be protected by privacy rights and that they should consult an attorney if they want to object. If the subpoenaing party is the employee themselves and the records pertain only to them, these notice requirements do not apply.10California Legislative Information. California Code CCP 1985.6
When you then serve the custodian, you must also deliver either proof that the required consumer notice went out or the consumer’s written authorization to release the records.3California Legislative Information. California Code CCP 2020.410
The Witness Must Be a California Resident
A witness has no obligation to comply with a California subpoena unless they are a resident of California at the time it’s served.11California Legislative Information. California Code CCP 1989 If the witness lives out of state, a California court cannot compel their attendance no matter how properly the subpoena was drafted or delivered. For out-of-state witnesses, use the interstate deposition procedures under the Uniform Interstate Depositions and Discovery Act, which California has adopted.
Completing and Filing the Proof of Service
After delivering the subpoena, the server completes a proof of service documenting what happened. This is a sworn declaration, signed under penalty of perjury, that records the date, time, and location of service, how the subpoena was delivered, the name of the person who received it, and the amount of witness fees and mileage that were offered or tendered.12California Courts. Proof of Service – Civil (POS-040) File it with the court. Without it, you have no evidence the subpoena was properly served, which means you have nothing to enforce.
What Happens If the Witness Doesn’t Show
A witness who has been properly served and paid the required fees cannot lawfully skip the appearance. The consequences escalate quickly.
A witness who disobeys a deposition subpoena or refuses to be sworn in may be held in contempt of court, and the court does not have to first issue a separate order directing compliance.13California Legislative Information. California Code CCP 1991.1 Contempt can bring fines and, in extreme cases, jail time.
Beyond contempt, a witness who fails to appear automatically forfeits $500 to the party who issued the subpoena. On top of that forfeiture, the witness is liable for all damages the party suffers from the no-show — costs of rescheduling depositions, litigation delay, lost evidence. Both the $500 forfeiture and the additional damages can be recovered through a separate civil action.14California Legislative Information. California Code CCP 1992
These penalties depend on the subpoena having been properly served with the required fees tendered. A defective subpoena — served too late, without fees, or on someone outside California — gives the witness a complete defense.