What Is a 473(b) Motion in California and How Does It Provide Relief?

Losing a case to a missed deadline, a defaulted answer, or an attorney's slip feels final, but California law gives you a second chance. A 473(b) motion is the procedural tool that asks a California court to undo a default, dismissal, or judgment that resulted from mistake, inadvertence, surprise, or excusable neglect. This guide explains what Code of Civil Procedure Section 473(b) covers, the relief it delivers, the grounds and deadlines that govern it, and how a properly drafted motion succeeds where a sloppy one fails.

Section 473(b) protects litigants who suffered an adverse result without a fair hearing on the merits. It contains two distinct paths: a discretionary path for honest human error and a mandatory path tied to a sworn attorney affidavit of fault. The difference controls your timing, your evidence, and your odds. Below, the article breaks down each element, walks through filing, compares the statute to federal Rule 60(b), and shows where to get a court-ready motion drafted.

Key Takeaways

A 473(b) motion is a request under California Code of Civil Procedure Section 473(b) to set aside a default, default judgment, dismissal, or other order entered because of a party's mistake, inadvertence, surprise, or excusable neglect. The court grants discretionary relief on a showing of reasonable error or mandatory relief when an attorney files a sworn affidavit admitting fault. The deadline is six months from the challenged order.

1. Section 473(b) restores cases lost to honest error by vacating defaults, dismissals, and judgments.
2. Discretionary relief requires excusable neglect; mandatory relief requires a sworn attorney affidavit of fault.
3. The outside deadline is six months, and for default judgments it must be both within six months and within a reasonable time.
4. A winning motion attaches a proposed responsive pleading, a supporting declaration, and a noticed hearing.
5. Courts favor resolving disputes on the merits, so doubts are resolved toward granting relief.

What is a 473(b) motion under California law?

A 473(b) motion is a noticed request asking a California trial court to set aside a default, default judgment, dismissal, or order that a party suffered because of mistake, inadvertence, surprise, or excusable neglect. It operates under California Code of Civil Procedure Section 473(b), the statute that governs relief from adverse procedural outcomes.

The motion serves litigants who never received a hearing on the merits. A default occurs when a defendant fails to respond to a complaint within the deadline, and a default judgment follows when the court enters a money or other award on that default. Section 473(b) gives the burdened party a route back into the case. California courts apply the statute liberally because the policy favors trial on the merits over forfeiture by technicality. The motion connects the error to the result and asks the judge to restore the parties to their pre-error positions.

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What relief does a 473(b) motion provide?

A 473(b) motion provides an order vacating the adverse outcome and reopening the case for litigation on the merits. The court sets aside the default, default judgment, dismissal, or order, then permits the moving party to file the responsive pleading or take the action the error prevented.

The relief restores procedural standing. A defendant who defaulted gains the right to file an answer, raise defenses, and contest liability and damages. A plaintiff dismissed for missing a deadline regains an active case. The order erases the legal effect of the prior ruling, including any judgment lien or enforcement that flowed from it. Relief under Section 473(b) addresses the procedural error, not the substantive dispute, so the underlying claims then proceed through discovery, motions, and trial. This remedy differs from a motion for relief from judgment that reverses an unfair outcome on broader equitable grounds.

What are the legal grounds for a 473(b) motion?

The legal grounds for a 473(b) motion are mistake, inadvertence, surprise, and excusable neglect, the four statutory bases named in Section 473(b). Each describes a specific category of error that justifies undoing the adverse result.

Mistake covers an honest factual or legal error, such as miscalendaring a response date. Inadvertence means an unintentional oversight, such as a misfiled summons. Surprise refers to a condition that catches a diligent party off guard, such as opposing counsel proceeding without expected notice. Excusable neglect describes a failure that a reasonably prudent person would commit under the same circumstances, such as a hospitalization that prevented a timely filing. The neglect must be excusable, meaning the conduct stays within the range of ordinary human error rather than gross carelessness. Courts weigh the diligence of the moving party and the prejudice to the opponent before granting relief.

What is the difference between discretionary and mandatory relief under Section 473(b)?

The difference is that discretionary relief depends on the judge's evaluation of excusable error, while mandatory relief is automatic when an attorney files a sworn affidavit admitting fault. Section 473(b) contains both provisions, and they impose different burdens.

Discretionary relief requires the moving party to prove mistake, inadvertence, surprise, or excusable neglect, and the court decides whether the showing justifies vacating the result. The judge weighs reasonableness, diligence, and prejudice. Mandatory relief applies to a default, default judgment, or dismissal, and the court must grant it when the attorney submits an affidavit accepting blame for the error, even where the neglect is inexcusable. The mandatory path shifts the consequence from the client to the lawyer. It carries a condition: the court directs the attorney to pay reasonable compensatory costs to the opposing party. Choosing the correct path controls the evidence you file and the certainty of the result.

What is the deadline to file a 473(b) motion in California?

The deadline to file a 473(b) motion is six months from the date of the challenged order, default, or judgment. This outside limit is jurisdictional, meaning the court loses power to grant relief once it passes.

The six-month period runs from entry of the default, the dismissal, or the judgment, depending on what the motion attacks. For relief from a default judgment, the motion must be filed within six months and within a reasonable time, so a party who waits months without explanation risks denial even inside the window. Diligence matters at every stage. A litigant who discovers the error should move promptly rather than consume the full period. This timing rule resembles the structure of a motion to extend time versus a motion for continuance, where the calendar drives the outcome.

What must a 473(b) motion include to succeed?

A successful 473(b) motion must include a notice of motion, a supporting declaration, a memorandum of points and authorities, and a copy of the proposed responsive pleading. The statute requires the proposed pleading so the court sees the party is ready to litigate.

The declaration establishes the facts: what error occurred, how it happened, and why it qualifies as mistake, inadvertence, surprise, or excusable neglect. The memorandum applies Section 473(b) to those facts and cites controlling authority. The proposed pleading, such as a verified answer or demurrer, accompanies the motion as an exhibit. For mandatory relief, the attorney attaches a sworn affidavit of fault. The package must show diligence and a meritorious position. A motion that omits the proposed pleading is denied on its face, which is one reason careful drafting of a motion for relief from judgment matters.

How do you file a 473(b) motion step by step?

You file a 473(b) motion by preparing the papers, reserving a hearing, serving the opposing party, and filing with the court. The process follows the noticed-motion procedure in California civil practice.

1. Draft the notice of motion, declaration, memorandum, and proposed responsive pleading that together establish the statutory grounds.
2. Reserve a hearing date through the court's reservation system and confirm the department's calendar.
3. Serve all opposing parties with the complete motion package within the statutory notice period before the hearing.
4. File the motion and proof of service with the clerk, paying the required filing fee.
5. Appear at the hearing, argue the grounds, and lodge a proposed order for the judge's signature.

Each step has a deadline. California Rules of Court generally require service of moving papers at least 16 court days before the hearing, with added days for the method of service. Confirm local rules, because departments vary on reservation and tentative-ruling procedures.

How does a 473(b) motion compare to a motion for relief from judgment under Rule 60(b)?

A 473(b) motion is the California state-court equivalent of a federal Rule 60(b) motion, and both vacate adverse outcomes, but they differ in authority, grounds, and deadlines. Section 473(b) governs California superior courts; Federal Rule of Civil Procedure 60(b) governs federal district courts.

| Attribute | California Section 473(b) | Federal Rule 60(b) | | --- | --- | --- | | Governing authority | Code of Civil Procedure Section 473(b) | Federal Rules of Civil Procedure, Rule 60(b) | | Core grounds | Mistake, inadvertence, surprise, excusable neglect | Mistake, newly discovered evidence, fraud, void judgment, and other reasons | | Mandatory relief | Yes, on attorney affidavit of fault | No mandatory provision | | Deadline | Six months, outside limit | One year for grounds 1 through 3; reasonable time for others |

The federal rule reaches broader grounds, including fraud and a void judgment, while Section 473(b) adds the unique attorney-fault provision. Litigants in federal court should review a dedicated Rule 60 relief from judgment guide before filing.

What mistakes cause courts to deny a 473(b) motion?

Courts deny a 473(b) motion when the filing is late, the neglect is inexcusable, the proposed pleading is missing, or the declaration lacks specific facts. Each defect undermines a statutory requirement.

A motion filed after six months is denied for lack of jurisdiction. Conduct that reflects gross carelessness rather than ordinary error fails the excusable-neglect standard on the discretionary path. Omitting the proposed responsive pleading defeats the motion because the statute requires it. A vague declaration that asserts mistake without explaining how it occurred gives the judge no basis to find the error excusable. Unexplained delay within the six-month window invites denial of relief from a default judgment, where reasonable time is a separate requirement. Precise drafting answers each of these failure points before the opponent raises them.

What happens after a 473(b) motion is granted or denied?

After a 473(b) motion is granted, the court vacates the adverse order and the case proceeds on the merits; after it is denied, the prior judgment or default stands and the moving party considers appeal. The ruling determines the next procedural stage.

A granted motion restores the case. The defendant files the answer, the parties enter discovery, and the dispute moves toward trial. The court may impose conditions, such as ordering the attorney to pay the opponent's compensatory costs on the mandatory path. A denied motion leaves the judgment enforceable, and the moving party reviews whether the order is appealable or whether a separate equitable action to set aside the judgment is available. Prompt action preserves rights either way. A motion for post-judgment relief that enforces rights after court addresses the follow-on steps when relief is denied.

Where can you hire someone to draft a 473(b) motion in California?

You can hire experienced legal drafters, attorneys, and lawyers to draft a 473(b) motion through LegalHusk. The team prepares court-ready, jurisdiction-tailored motions that satisfy every element of Section 473(b), from the supporting declaration to the proposed responsive pleading.

Professional drafting beats a generic template because the statute rewards specificity. A LegalHusk attorney frames the mistake, inadvertence, surprise, or excusable neglect in the precise terms California courts require, attaches the correct exhibits, and cites controlling authority. LegalHusk helps pro se litigants and counsel alike, building documents designed to withstand opposition. Attorneys rely on this drafting support to move quickly inside the six-month window. Order your 473(b) motion today and reopen your case with confidence.

What are the most common questions about 473(b) motions?

The most common questions about 473(b) motions concern timing, grounds, cost, and outcome. The answers below resolve the issues litigants raise most before filing.

A 473(b) motion targets procedural errors, not substantive disagreement with a ruling. It vacates defaults, dismissals, and judgments entered without a hearing on the merits. The relief reopens the case rather than deciding it. Litigants searching related remedies often compare it to a motion for relief from default filing checklist and broader equitable motions.

Frequently Asked Questions

1. Can I file a 473(b) motion without an attorney?

Yes, a pro se litigant can file a 473(b) motion. The motion must include the notice, declaration, memorandum, and proposed responsive pleading. LegalHusk drafts these documents for self-represented parties so the filing meets every statutory requirement.

2. Is the six-month deadline ever extended?

No, the six-month deadline under Section 473(b) is a strict outside limit that the court cannot extend. A party who misses it considers a separate equitable action to set aside the judgment, which carries different standards and proof.

3. Does mandatory relief require proof of excusable neglect?

No, mandatory relief does not require excusable neglect. The court grants it when the attorney files a sworn affidavit of fault, even where the conduct was inexcusable. The attorney then pays the opposing party's reasonable compensatory costs.

4. What documents prove excusable neglect?

A detailed declaration proves excusable neglect by stating the facts of the error, such as medical records of a hospitalization, calendaring entries, or correspondence showing the oversight. Specific, dated facts persuade the court that a reasonably prudent person would have made the same mistake.

Conclusion

A 473(b) motion restores cases that California litigants lost to mistake, inadvertence, surprise, or excusable neglect, vacating defaults, dismissals, and judgments so the dispute reaches the merits. Success depends on filing within six months, choosing the discretionary or mandatory path correctly, attaching the proposed pleading, and supporting every fact with a precise declaration. Generic templates miss these requirements; professional drafting does not. LegalHusk prepares court-ready 473(b) motions for attorneys and pro se litigants across California. Order your motion today and reclaim your right to be heard.