How long does the appellate court process take?

The timeline for an appeal varies, but it typically takes several months to over a year, depending on the complexity of the case and the court's schedule.

Appellate Court Process: What Happens and What to Expect

Q: What happens when you appeal a case?

When you appeal, the court reviews the record of the original trial. If successful, the case is usually sent back to the original court for reconsideration or a new trial.

Q: What is the best reason for a case to be granted an appeal?

The strongest grounds for an appeal are showing a 'prejudicial error' or that the original decision was not supported by substantial evidence.

Appealing a family law ruling in California is a formal, multi-stage legal process, not a second chance at trial. The Court of Appeal reviews only the existing record for legal error. Roughly 1 in 5 civil appeals result in a reversal. The process typically takes 17 months or more. Success depends entirely on the strength of your grounds and the quality of your appellate counsel.

In this guide, you will learn:

What an appellate court is and how it differs from the trial court
The strongest grounds for being granted an appeal in California
How to file a Notice of Appeal and meet critical deadlines
How to prepare your case for the appellate process
What actually happens at each stage of the appellate court process
What a successful appeal does, and does not, mean for your case
How long the appellate process takes, with real California data

Once you have decided to appeal the ruling in your family law case, you need to prepare yourself for the appellate court. This experience is very different from the one you have just had in the family court, so it is worth preparing yourself. Here is a short guide on the appellate court process, so that you know what to expect.

What is an Appellate Court?

An appellate court is a higher court that reviews decisions made by trial courts, in family law cases, which means decisions issued by the California Superior Court. Unlike the trial court, an appellate court does not conduct a new hearing, call witnesses, or admit new evidence. Its role is strictly to examine the existing record and determine whether the law was applied correctly.

In California, family law appeals are typically heard by the California Court of Appeals. A panel of three justices reviews the trial record, the written briefs submitted by both parties, and, in some cases, oral arguments. The appellate court does not decide who is more sympathetic or credible; it decides whether legal error occurred and whether that error affected the outcome of your case.

What Is the Best Reason for a Case to Be Granted an Appeal

Not every unfavorable ruling qualifies for appeal. California appellate courts will only intervene when there is a legally recognized basis to do so.

Common grounds for appeal include:

Prejudicial legal error. This occurs when the trial court misapplied the law, excluded critical evidence improperly, admitted evidence it should not have, or gave incorrect jury or bench instructions that materially affected the outcome.
Lack of substantial evidence. If the court’s findings are not supported by sufficient credible evidence in the record, an appellate court may reverse or remand the decision. This standard is demanding; courts give significant deference to trial court findings, but it can be met with skilled legal analysis.
Abuse of discretion. Trial judges have broad discretion in family law matters, particularly in custody and support rulings. However, when a judge exercises that discretion in a manner that is arbitrary, capricious, or exceeds the bounds of reason, it may constitute reversible error.
Procedural violations. Due process violations, improper exclusion of a party’s opportunity to be heard, or serious misconduct during trial may also support an appeal.

The strength of your grounds for appeal should be evaluated candidly and early by an experienced appellate attorney. Filing an appeal without a viable legal basis wastes time, resources, and can affect your credibility in subsequent proceedings.

How to File an Appeal in Court

Strict procedural rules and deadlines govern the appellate process in California. Missing a filing deadline, even by one day, can permanently forfeit your right to appeal.

Step 1: File a Notice of Appeal. In most California civil and family law cases, you must file a Notice of Appeal within 60 days of the date the opposing party serves you with notice of entry of judgment, or within 60 days of the date the court clerk mails you notice of entry of judgment. In some circumstances, the deadline is 180 days from entry of judgment if no such notice was served.
Step 2: Designate the record. You must designate the record on appeal, which includes the clerk’s transcript (court documents) and the reporter’s transcript (trial testimony). This forms the evidentiary foundation of your appeal.
Step 3: Brief preparation and filing. The appellant files an opening brief, the respondent files a responding brief, and the appellant may file a reply brief. These written arguments are the heart of the appellate case; they must be precise, well-researched, and strategically framed around the applicable standard of review.
Step 4: Oral argument (if requested). Either party may request oral argument before the appellate panel. While not always granted or determinative, a skilled appellate advocate can use this opportunity to address the panel’s concerns directly.

Working with an attorney who focuses on appellate practice, not just trial litigation, is critical. Appellate briefs require a fundamentally different skill set than courtroom advocacy.

How to Prepare for An Appeal

Preparation for an appellate case begins before the trial even concludes. Preserving issues for appeal, by objecting on the record, making appropriate motions, and ensuring errors are documented, is a foundational responsibility that must be addressed during the trial phase. Once the trial is over, the record is fixed.

After the trial, preparation involves:

Retaining appellate counsel early. The appellate attorney needs sufficient time to review the full trial record, identify viable issues, and develop a cohesive legal strategy. Delays can compromise the quality of the brief and miss important deadlines.
Reviewing the entire record. Every transcript, exhibit, and motion must be analyzed for error. Winning appellate arguments are often found in procedural rulings or evidentiary decisions that may not have appeared significant during trial.
Crafting a strategic brief. The opening brief is your primary vehicle for persuasion. It must clearly identify the errors, apply the correct standard of review, and present a compelling argument for reversal or remand, all within strict formatting and page-limit requirements.
Managing client expectations. Understanding what an appeal can and cannot accomplish is essential. Clients must be prepared for a lengthy process and a limited range of possible outcomes.

Appellate Court Process

The side that files the appeal is called the appellant, while the opposing side is called the respondent. The appellant asks the court to review the records of the original trial and determine whether there has been a legal mistake that has affected the outcome of the case. The appellant and their legal counsel must be able to prove that there has been a prejudicial error or that the decision was not supported by substantial evidence. It is very important to remember that an appeal is not a retrial.

The Basics of Appealing a Court Decision

Once the process is started with the filing of a notice of appeal, the appellant aims to submit a written, sometimes also oral, argument to prove that the court decision was made in error. The appellate lawyer will write a brief and submit it to the court, together with the records of the original trial. You will then have to await the appellate court’s decision, which can take up to several months.

How Long Does an Appellate Court Take

The California appellate process is not swift. From the filing of the Notice of Appeal through the issuance of a final opinion, the total timeline in a family law appeal typically ranges from 12 to 36 months. The duration depends on the complexity of the record, the number of issues raised, the court’s current caseload, and whether oral argument is requested.

Key milestones and their approximate timelines:

Record preparation: 3 to 6 months
Briefing period: 4 to 6 months
Submission and deliberation: 3 to 12 months
Issuance of opinion: Variable, but often 90 days after submission

Clients should plan accordingly. In family law matters involving ongoing custody arrangements or support obligations, the underlying orders generally remain in effect during the pendency of the appeal unless a stay is granted by the court.

FAQs about the Appellate Court Process

What happens when you appeal a case?

When you appeal a family law case in California, the appellate court reviews the trial record, not the facts, to determine whether a legal error occurred that affected the outcome. If the appeal is successful, the court typically remands the matter back to the trial court for further proceedings. A successful appeal does not guarantee a different result in the underlying case; it opens the door to reconsideration.

How long does an appellate court take?

In California, family law appeals generally take between 12 and 36 months from filing to final decision, depending on the complexity of the case and the appellate court’s docket. Clients should be prepared for a multi-year process in high-complexity matters.

What is the best appellate law firm in California?

The best appellate representation comes from attorneys who combine deep knowledge of California family law with dedicated appellate advocacy skills, including precise brief writing, command of the standard of review, and the ability to identify reversible error in a trial record. Westover Law is a Board Certified Family Law Specialist firm serving Riverside, San Bernardino, and San Diego counties, with extensive experience in post-judgment appeals and complex family law litigation.

How long does it take to appeal a case?

The full appellate timeline, from the filing of the Notice of Appeal through receipt of the Court of Appeal’s written opinion, typically spans one to three years in California family law matters. Factors affecting the timeline include record complexity, the number of legal issues raised, and whether an oral argument is held.

Work With a Board-Certified Family Law Appellate Attorney

Navigating the appellate court process demands a fundamentally different approach than trial litigation. It requires meticulous record review, authoritative legal writing, and strategic judgment about which arguments are worth pursuing. Not every unfavorable ruling can or should be appealed, and pursuing a weak appeal can be costly in both time and resources.

Westover Law is led by Andrew L. Westover, a Board Certified Family Law Specialist with significant experience in family law appeals throughout Southern California. Whether you are considering an appeal of a custody order, a property division ruling, a spousal support determination, or a child support decision, our firm provides the strategic counsel and appellate advocacy that complex cases demand.