California Code of Civil Procedure Section 989 lets a judgment creditor bind a joint debtor who was named in the original complaint but never served and never appeared. Instead of filing a new lawsuit, the creditor returns to the same court, obtains a special summons, and asks the court to make the existing judgment enforceable against that co-debtor. The procedure runs through CCP sections 989 to 993, and the defenses available to the newly served defendant are tightly limited.
When CCP 989 Applies
Three conditions have to line up before a creditor can use this process. The original action must have been based on an obligation on which the defendants were “jointly indebted.” The court must have already entered a money judgment against at least one of those joint debtors. And the person the creditor now wants to bind must have been named as a defendant in the original complaint, never served with the original summons, and never appeared.1California Legislative Information. California Code of Civil Procedure Part 2, Title 14, Chapter 1 – Proceedings Against Joint Debtors
The statutory phrase “jointly indebted upon an obligation” matters. It points to true joint obligations, such as a promissory note co-signed by business partners or a contract where multiple parties share the same payment duty. It is not a tool for binding someone who happened to be a co-defendant on an unrelated theory.
Starting the Proceeding: Summons and Affidavit
The creditor does not file a new case. The clerk issues a special summons, sometimes called a joint debtor summons, once the creditor submits the affidavit required by CCP 991. The summons describes the existing judgment and orders the unserved debtor to appear and show cause why that judgment should not bind them.1California Legislative Information. California Code of Civil Procedure Part 2, Title 14, Chapter 1 – Proceedings Against Joint Debtors
CCP 990 sets a timing rule: the summons must be returnable no later than 90 days after the return date of the original summons in the underlying case.1California Legislative Information. California Code of Civil Procedure Part 2, Title 14, Chapter 1 – Proceedings Against Joint Debtors
The accompanying affidavit must come from the plaintiff, their agent, representative, or attorney. Its job is narrow: tell the court the judgment remains at least partially unpaid, and state the specific dollar amount still owed at the time of filing.2California Legislative Information. California Code of Civil Procedure Section 991
How the Summons Must Be Served
The joint debtor summons and affidavit must be served in the same manner as an original summons. That means personal service, substituted service, or service by publication under the standard rules for a new civil action. Informal notice will not do.1California Legislative Information. California Code of Civil Procedure Part 2, Title 14, Chapter 1 – Proceedings Against Joint Debtors
The reason is due process. A judgment already exists, and the person being brought in needs the same formal notice any defendant would receive at the start of a case.
What the Newly Served Defendant Can Argue
CCP 992 lets the newly served defendant file an answer within the time stated in the summons. The permitted defenses fall into two groups.
The first group challenges the judgment itself or raises something that happened after the lawsuit began. The defendant can deny the validity of the judgment, for instance by arguing the court lacked jurisdiction over the served parties or that the judgment was obtained by fraud. The defendant can also raise defenses that came into existence after the original action was commenced, including payment, settlement, or a bankruptcy discharge.
The second group denies personal liability on the underlying obligation, but only through a defense that already existed when the original action was filed. Examples include a personal statute of limitations defense, a prior release from the obligation, or a factual dispute about whether the defendant was ever a party to the contract.1California Legislative Information. California Code of Civil Procedure Part 2, Title 14, Chapter 1 – Proceedings Against Joint Debtors
What the defendant cannot do is relitigate the merits of the case on behalf of the co-debtor who already lost. The debt itself has been established by the earlier judgment. The question now is whether this particular person is bound by that result.
What the Court Looks At
CCP 993 specifies which documents make up the written allegations at the hearing, and that list depends on which type of defense the defendant raised.
When the defendant denies the judgment or raises a post-action defense, the record consists of three items: the joint debtor summons, the attached affidavit, and the defendant’s answer. The original complaint and judgment do not come in, because the underlying obligation is not being contested.
When the defendant denies personal liability on the original obligation based on a pre-existing defense, the record is broader. It includes the original complaint, the judgment, the summons with affidavit, and the answer. Both sides keep the right to amend their pleadings, as in any other civil case.1California Legislative Information. California Code of Civil Procedure Part 2, Title 14, Chapter 1 – Proceedings Against Joint Debtors
Possible Outcomes
If the court accepts the defenses in full, the defendant is not bound by the judgment. If partial defenses apply, such as an offset or partial payment, the court can reduce the amount of liability. If the defenses fail, the court enters a judgment binding the previously unserved defendant for the outstanding balance of the original judgment, and the creditor can then pursue standard enforcement remedies against that debtor.
The Amount Owed and the Enforcement Clock
The affidavit must state the current amount due, and that figure typically includes accrued interest. California post-judgment interest runs at a flat 10 percent per year on the unpaid principal balance of a money judgment, accruing from the date the original judgment was entered rather than from the end of the joint debtor proceeding.3California Legislative Information. California Code of Civil Procedure Section 685.010 By the time a creditor files under CCP 989, the balance can be meaningfully larger than the face value of the original judgment.
Timing also controls whether the proceeding is available at all. A California money judgment is enforceable for 10 years from the date of entry, and the creditor can extend that period by filing a renewal application before the 10-year window closes, which resets the enforcement clock for another 10 years.4Justia Law. California Code of Civil Procedure Article 2 – Renewal of Judgments A CCP 989 action has to be brought while the underlying judgment is still enforceable. If the judgment lapses without renewal, the ability to bind the unserved co-debtor goes with it.