Can a Case Be Reopened After Being Closed in California? - HHJ Trial Attorneys
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Can a Case Be Reopened After Being Closed in California?

can-a-case-be-reopened-in-california
Founding partner of HHJ Trial Attorneys Elliott Jung black and white portrait

Gerry Spence Trial Lawyers College

Adam copy

University of California, Berkeley

Updated: June 21, 2026

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Key Takeaways

  1. Reopening a closed case in California is possible only in very specific situations, such as fraud, newly discovered evidence, or serious procedural mistakes (often via CCP Section 473).
  2. A signed settlement and release (especially with a Section 1542 waiver) usually prevents you from getting more money later, even if new injuries appear.
  3. Motions to set aside under CCP Section 473 have a strict six-month deadline from the judgment or dismissal, and missing it generally ends that option.
  4. If you discover a new at-fault party, you usually must file a new lawsuit against them (or use a Doe amendment if the original case is still open). Your rights depend on whether the statute of limitations has expired.
  5. Trying to reopen a case comes with strict deadlines, a high burden of proof, and financial risks, such as having to return settlement money, so speaking with a personal injury attorney before taking action is essential.

Your personal injury claim has been settled, or perhaps it was dismissed by a judge. However, your situation has changed. Maybe due to newly discovered medical complications or evidence. But can a case be reopened in California? 

Reopening a closed case is possible, but only in a few special situations. Courts in California generally prefer final decisions to keep the system predictable and running smoothly. If you’re in this difficult legal situation, this blog guides you through reopening closed cases, limitations you may face, key deadlines, and when to consult a personal injury attorney.

When Is a Case Considered “Closed” in California?

Civil cases are considered closed when specific legal actions end active litigation. The actions include a signed settlement and release of claims, a court judgment after trial, a voluntary dismissal by the plaintiff, and an involuntary dismissal ordered by the court. Depending on the type of closure, there are unique legal implications regarding your options. 

A dismissed case is typically easier to reopen than one with a signed settlement agreement. However, keep in mind that a closed case is completely different from an expired statute of limitations. Expired timelines prevent cases from ever starting and come with their own rules and requirements.

What Happens if You Signed a Release?

Most personal injury settlement agreements include a release-of-all-claims clause. In exchange for settling the claim, the parties involved waive their right to pursue claims against each other. This includes any claims the signer did not know about at the time of signing, such as injuries that later emerge. For example, if a plaintiff settles a whiplash claim and later discovers a spinal injury, they can’t get more money if they signed a CCC Section 1542 waiver.

In rare cases, a Section 1542 waiver can be challenged if the release was obtained through fraud or misrepresentation. However, the burden of proof is exceptionally high. Skilled personal injury attorneys negotiate contracts carefully before their clients sign anything because the phrasing can make such a significant difference. If you decide to sign an agreement without speaking to an attorney, your options for further compensation can disappear completely.

Can a Case Be Reopened After It’s Closed?

Yes, but only in specific situations. A closed case can be reopened if the moving party can demonstrate fraud, newly discovered evidence, or procedural error under California Code of Civil Procedure Section 473

  • CCP Section 473 motion to set aside covers mistakes, inadvertence, surprise, or excusable neglect. There is a strict six-month deadline from the date of the judgment or dismissal.
  • When fraud prevented you from getting a fair opportunity to begin with, claimants could also file a separate lawsuit asking the court to reopen the old case. There isn’t a hard deadline. However, you still have to act within a “reasonable” time, and the judge decides what counts as reasonable based on the facts.

What Are the Grounds for Reopening a Case?

Courts recognize specific, limited reasons for reopening a closed case in California. Each reason has its own burden of proof and deadline. Judges will only disrupt a finalized case if the exact statutory requirements are met.

Newly Discovered Evidence

New evidence can completely change a previously resolved case. The newly discovered personal injury standard requires that the evidence could not have been found earlier with reasonably diligent investigation. The plaintiff must show that the new evidence completely changes the case and will most likely affect the final judgment.

Fraud, Misrepresentation, or Concealment by the Opposing Party 

If the opposing party presents fraudulent evidence, misrepresents an expert witness or piece of evidence, or intentionally conceals important details, it undermines the entire judicial system. If the plaintiff can provide clear proof of the fraud, California courts will reopen the case to give the wronged party another chance at a fair trial.

Mistake, Inadvertence, or Excusable Neglect

Human error can impact the resolution of a case or result in unfair dismissal. CCP 473 allows a case to be reopened if an honest mistake changed its trajectory. If a “reasonably prudent person” could have made the same mistake, a judge will review the case and determine if justice was denied due to a simple mistake.

Ineffective Assistance of Counsel 

Attorney misconduct can result in an unfair resolution or the premature dismissal of a case. If the attorney failed in their duties to their client or intentionally abandoned them, the court may reopen the case. The plaintiff must be able to show that their attorney’s actions directly subverted the entire legal process.

Void Judgment

A void judgment occurs when a court lacked the legal power to decide the case. This can occur if the court lacked jurisdiction or if the defendant was never properly served with the lawsuit. Because that kind of ruling is treated as invalid from the start, a party can ask the court to cancel or ignore a case closed under a void judgment order even years later.

What Are the Legal Procedures for Reopening a Case?

The specific legal procedure depends on which grounds apply to your situation. Plaintiffs must follow strict procedural requirements to have their case heard by a judge. Skipping steps will not get your case reopened faster or at all.

Motion to Set Aside Under CCP Section 473

Plaintiffs must file a motion to set aside judgment directly with the original court. You will be required to include a declaration detailing the exact “mistake, inadvertence, or excusable neglect” that affected their case. Plaintiffs must submit their application immediately to avoid missing the deadline.

Independent Action in Equity for Extrinsic Fraud

Victims who have been deceived must file a separate lawsuit to challenge the verdict or dismissal. The new filing must outline how the defendant’s fraudulent actions negatively impact the initial case. You must show undeniable evidence of the fraud to reopen your case.

Appeal of a Final Judgment

Filing an appeal means taking your case to a higher court to review the trial outcome. Plaintiffs must show that a significant legal or procedural error took place. There are strict timelines for appeals that apply immediately once the initial court enters its judgment.

Can You Reopen a Case Against a Different Party?

If a previously unidentified third party is found who shares liability for your injuries, it can alter your legal strategy entirely. To pursue compensation, you must file a new lawsuit against that party instead of trying to reopen your original case. This new legal action is separate from the original action, and its validity depends on whether the statute of limitations has expired. Under CCP Section 335.1, the deadline for personal injury is two years from the date of the injury.

However, the clock may be paused under the discovery rule if a judge determines that you couldn’t have reasonably known about the third party’s involvement before the statute of limitations expired. You must take action as soon as possible to preserve your right to pursue compensation against the at-fault party.

Doe amendments allow the plaintiff to substitute the newly identified third party’s name for the Doe defendant placeholders in the original filing. You may be able to include the new party without filing a new lawsuit if the original action is still active. Once a case is dismissed or closed, your only option is to initiate a new lawsuit against the new defendant.

Limitations and Challenges in Reopening a Case

Even with legal grounds for reopening a case, there are practical obstacles to consider. Reopening a closed case means subjecting yourself to intense scrutiny and high evidentiary standards. Plaintiffs may face several hurdles throughout the process, and they need to be prepared for them before deciding to reopen their case.

Strict Deadlines Under CCP § 473

If you miss the mandatory six-month deadline outlined in CCP Section 473, you completely lose the chance to seek procedural relief. Judges may not extend the timeline for mistakes, so taking action immediately is vital for success.

High Burden of Proof

Judges require clear, convincing evidence before they will consider reviewing a closed case. Speculation and regret are not good enough reasons to reopen a case. You must have documentation to support your assertions.

Repayment of Original Settlement

If a plaintiff wants to undo a settlement, they are often required to return the funds they received. You cannot keep the settlement money while claiming that the contract is invalid. This is an enormous financial risk because you may receive a much lower settlement.

Courts’ Strong Preference for Finality

California courts are usually hesitant to reopen a finalized case. The goal of the finality of judgment preference exists to protect the stability of the legal network. If everyone could reopen their case at any time, the court would be overrun with unhappy plaintiffs and defendants looking for a different outcome. 

Speak With an Attorney About Reopening Your Case

Post-closure cases exist at the intersection of civil procedure, contract law, and equity that require professional guidance. At HHJ Trial Attorneys, we evaluate whether you have valid grounds for relief and identify whether fraud or concealment took place during your initial case. We assess new evidence, pursue claims against previously unidentified parties, and manage CCP Section 473 motions within the deadline.

We offer free consultations so you can have your case reviewed without financial burden. We also work on a contingency fee basis, which means you don’t pay us unless we win your case. Our track record speaks for itself, with placement in the Top 50 California Jury Verdicts, recognition as Super Lawyers, and tens of millions of dollars secured for victims. Contact us to schedule a consultation with an expert personal injury attorney.

FAQs

What Evidence Do I Need to Reopen a Case?

You must present clear, newly discovered evidence that directly impacts your original case. Acceptable evidence includes hidden financial records, new eyewitness testimony, and uncovered communications. You also need to prove that the information could not have been uncovered earlier through reasonable diligence.

What Should I Be Careful About When Reopening a Closed Case?

professional attorney and founding partner of HHJ Elliott Jung
Elliot H. Jung

Gerry Spence Trial Lawyers College

Elliot H. Jung is a trial attorney at HHJ Trial Attorneys who focuses on helping injured clients navigate complex personal injury cases. With an emphasis on advocacy, case strategy, and client support, he works to secure fair outcomes for people facing medical bills, lost wages, and other accident-related losses. His approach combines legal experience with a commitment to clear communication and effective representation.

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