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Tax Court of New Jersey, State Tax Complaint, page 1
Basic · 32/100Form Complexity Index

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What this form asks for

The AI fills all of it, from your answers or your documents.

This form is a legal document used by taxpayers in New Jersey to initiate a civil action in the Tax Court. It allows a plaintiff to formally contest a tax assessment made by the Director of the Division of Taxation or the denial of a claim for a tax refund. Today, this form can be filled out quickly and accurately using AI-powered services like Instafill.ai, which can also convert non-fillable PDF versions into interactive fillable forms.
Fillable fields21
Pages3
Form Complexity IndexBasic, 32/100

The AI checks your answers before you download

12 checks built for this form, so a wrong date or a missing answer is caught before anyone else sees it.

Requires Plaintiff or Attorney Name

This check ensures that the 'Name' field under 'Plaintiff or Filing Attorney Information' is not empty. This information is essential for identifying the filing party and for all future correspondence from the court. If this field is left blank, the submission will be rejected as it lacks the primary identifier for the case filer.

Validates Attorney Email Address Format

This validation verifies that the value entered in the 'Email Address' field follows the standard email format (e.g., '[email protected]'). An accurate email address is critical for electronic service and official communication from the court, as specified on page 4 of the form. An invalid format will prevent submission and prompt the user to correct the entry.

Validates Telephone Number Format

This check ensures the 'Telephone Number' field contains a valid phone number format, such as (XXX) XXX-XXXX or a similar standard. A valid contact number is necessary for the court or opposing counsel to communicate directly if needed. The validation prevents the entry of non-numeric characters or incomplete numbers, ensuring contact information is reliable.

Conditional Requirement for NJ Attorney ID

This validation checks if the 'NJ Attorney ID Number' is provided when the filer is an attorney. The system should determine if the filer is an attorney (perhaps via a separate question) and make this field mandatory in that case. This ID is crucial for verifying the attorney's standing with the New Jersey State Bar and for court records.

Ensures Plaintiff and Defendant Names are Provided

This check verifies that both the 'Plaintiff' and 'Defendant' name fields in the main body of the complaint are filled out. These names formally establish the parties to the legal action and are fundamental to the case caption. A complaint cannot be filed without clearly identifying who is suing whom.

Verifies Exclusive Selection of Contest Reason

This validation ensures that the plaintiff has selected exactly one option in section 1, either 'a. Tax assessment(s)' or 'b. The denial of plaintiff's claim for refund(s)'. The form specifies 'check one,' and selecting zero or both options would make the basis of the complaint ambiguous. This check is critical for properly categorizing and processing the complaint.

And 6 more checks
  • Requires Statement of Facts and Contentions
  • Validates Main Complaint Signature Date
  • Ensures Both Proof of Service Dates are Present
  • Verifies Logical Consistency of Service Dates
  • Requires Signature for Proof of Service
  • Confirms Acknowledgment of Attachment Requirements

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How to Fill Out CN 10325 Online for Free in 2026

What the AI walks you through.

  1. Navigate to Instafill.ai and upload or select the New Jersey State Tax Complaint form.
  2. Provide the plaintiff's information, including name, address, and attorney details if applicable.
  3. Identify the defendant and check the appropriate box to indicate whether you are contesting a tax assessment or a refund denial.
  4. Clearly state the facts, contentions, and legal basis for your complaint in the provided section.
  5. Attach all required supporting documents, such as the notice of assessment or refund denial, and the State Tax Case Information Statement.
  6. Review all information populated by the AI for accuracy, then electronically or manually sign and date the complaint and the Proof of Service section.
  7. Download the completed form and follow the instructions to file it with the Tax Court Management Office and serve copies to the Division of Taxation and the Attorney General.

Common Mistakes in Completing CN 10325

The ones the AI is built to catch.

Failure to Attach All Required Documents
The form requires several critical attachments that are often forgotten, including the specific tax assessment or refund denial notice, the applicable State Tax Case Information Statement (CIS), and any referenced information schedules. Missing these documents will result in the court deeming the filing incomplete, causing significant delays or even rejection of the complaint. To avoid this, create a checklist of all documents mentioned in the instructions on page 2 (Notes 1, 4, and 5) and ensure each one is included before mailing.
Improper or Incomplete Proof of Service
Filers often make errors on the 'Proof of Service' page, such as failing to serve both the Director of the Division of Taxation and the Attorney General, or using an outdated service method. The form presents conflicting information, with page 3 suggesting certified mail while page 4 specifies email as the preferred method. This confusion can lead to improper service and potential dismissal. The best practice is to follow the most current instructions on page 4, serve both parties via the provided email addresses, and then accurately complete the Proof of Service section with the correct dates before signing.
Incorrectly Identifying the Defendant
A common procedural error is naming the wrong defendant in the case caption. Filers may incorrectly list 'State of New Jersey' or 'Division of Taxation' as the defendant. The instructions clarify that the proper defendant is the 'Director of the Division of Taxation' or the director of the specific state agency administering the tax. Naming the wrong party can cause procedural delays and may require filing an amended complaint, wasting time and resources.
Missing the 90-Day Filing Deadline
The instructions state that the complaint must be received by the Tax Court within a 90-day period. This is a strict, jurisdictional deadline, not a postmark deadline. Missing it, even by one day, will almost certainly result in the case being permanently dismissed without the court ever considering its merits. To prevent this, filers should calculate the deadline immediately upon receiving the final determination and file the complaint well in advance, accounting for mail or processing time.
Including Confidential Personal Identifiers
Despite a clear warning on page 2 (Rule 1:38-7), filers frequently submit the complaint or attached evidence with unredacted confidential information like Social Security numbers, driver's license numbers, or full bank account numbers. This violates court rules and exposes the filer to identity theft, as the documents become part of a public record. Before filing, carefully review every page and redact all such identifiers. AI-powered tools can help identify and flag sensitive data in documents before submission.
Confusing Filing with Service
Filers often confuse the address for filing the complaint with the addresses for serving the complaint. The complaint must be filed with the Tax Court Management Office (the P.O. Box on page 4), while copies must be served on the Director of Taxation and the Attorney General (at their email or physical addresses). Mailing the original complaint to a service address instead of the court will fail to initiate the case and can cause you to miss the filing deadline.
Forgetting to Sign or Date the Complaint
An unsigned or undated complaint is legally invalid and will be rejected by the court clerk. This simple oversight can lead to the filing being returned and may jeopardize the case if the deadline is near. The form requires two separate signatures: one on the main complaint (page 1) and another on the Proof of Service certification (page 3). Always double-check that both sections are properly signed and dated before submission.
Submitting an Insufficient Factual Basis
In Section 3, 'The facts and contentions upon which the plaintiff relies,' filers often provide a vague, emotional, or legally insufficient explanation. This section is the core of the legal argument and must clearly state the specific facts and reasons why the tax determination is incorrect. A weak or unclear statement can undermine the entire case from the start. It is crucial to provide a concise, organized, and fact-based narrative that directly addresses the errors in the assessment or refund denial.
Failing to Include the Filing Fee
The instructions on page 2 mention that the complaint must be submitted with the 'correct filing fee.' Filing without the fee, or with an incorrect amount, will prevent the complaint from being processed. The court will typically return the package, which can be a critical problem if the 90-day filing deadline is imminent. Before mailing, verify the current Tax Court filing fee on the New Jersey Courts website and include a check or money order for the correct amount.
Filling in Court-Use-Only Fields
The 'Docket No.' field on the first page is for official court use only and is assigned by the court clerk upon filing. Some filers mistakenly try to fill this in themselves, creating confusion. This field, and any other field marked for court use, should always be left blank. Using an AI-powered form-filling tool like Instafill.ai can help prevent this by identifying and skipping fields reserved for administrative use.
Incomplete or Incorrect Contact Information
Errors in the 'Plaintiff or Filing Attorney Information' section, such as a misspelled name, incorrect address, or outdated phone number, can have serious consequences. The court and the opposing party use this information for all official correspondence, including hearing notices and orders. An error could cause you to miss a critical deadline or court appearance. Always double-check that all contact details are current and accurate. If the form is a non-fillable PDF, a tool like Instafill.ai can convert it to a fillable version, ensuring information is entered clearly and legibly.

Frequently Asked Questions About CN 10325

 

Is it really free for 7 days?
Yes. You pay $0 today. Cancel before Nov 6 and you are never charged. Keep it, and it is $19.99 a month for 5 fills of your CN 10325.
Can I fill other forms too?
This plan is for your CN 10325: your own AI agent fills it as often as 5 times a month. To fill other forms and upload your own, choose a Professional plan from your account.
How do I cancel?
From your account, in two clicks, any time. No email, no call.
How does the AI fill out CN 10325?
You answer a few questions in plain words, or upload a document you already have. The AI reads what you give it and puts each answer into the right field of CN 10325, on every page, in seconds. It checks the answers against the form's own rules, and you review and change anything before you download, print or sign.
What happens to my information?
It is encrypted in transit and at rest, and it is never used to train AI.
How complex is CN 10325 to fill out?
CN 10325 has a Form Complexity Index of 32 out of 100, in the basic tier: 21 fillable fields across 3 pages. Instafill.ai's AI fills it in under a minute, with every field there for you to review before you download.
What is the purpose of the State Tax Complaint form?
This form is used to file a formal complaint with the Tax Court of New Jersey to contest a state tax assessment or the denial of a tax refund claim issued by the Director of the Division of Taxation.
Who should file this form?
Any taxpayer or their attorney who wishes to legally challenge a final determination made by the New Jersey Division of Taxation regarding their state taxes should file this form.
Is there a deadline for filing this complaint?
Yes, the complaint must be received by the Tax Court Administrator's Office within the 90-day time period from the date of the notice you are contesting.
What documents do I need to attach to my complaint?
You must attach a copy of the notice or determination you are contesting (e.g., the assessment or refund denial letter) and the applicable State Tax Case Information Statement.
Where do I send the completed form?
The complaint, supporting documents, and filing fee must be mailed to the Tax Court Management Office in Trenton. You must also serve copies to the Director of the Division of Taxation and the Office of the Attorney General, preferably via email.
What is the 'Proof of Service' section for?
This section is your sworn statement confirming that you have sent a copy of the complaint to both the Director of the Division of Taxation and the Attorney General of New Jersey, which is a required step.
What should I write in the 'Facts and contentions' section?
In this section, you must clearly explain the factual and legal reasons why you believe the tax assessment or refund denial is incorrect. Be specific about your arguments against the Division of Taxation's decision.
What does it mean to 'redact' confidential information?
Redacting means you must remove or black out sensitive personal information, such as Social Security numbers, driver's license numbers, or full bank account numbers, from all documents before you file them with the court.
Do I have to use this specific printed form?
No, using this form is optional. However, any complaint you submit must include all the required information, conform to court rules, and have the State Tax Case Information Statement attached.
What if my complaint is about a tax from an agency other than the Division of Taxation?
You must modify the complaint form to name the Director of the correct State agency that administers the tax as the defendant in your case.
Can I use AI to help me fill out this form?
Yes, services like Instafill.ai use AI to auto-fill form fields accurately and save time, helping you complete the complaint form more efficiently.
How can I fill out this State Tax Complaint form online?
You can use a service like Instafill.ai to upload the PDF and fill it out on your computer. This allows you to type your information, save your progress, and print a clean, legible copy for filing.
The PDF of this form I have is not fillable. What can I do?
If you have a non-fillable or 'flat' PDF, Instafill.ai can convert it into an interactive, fillable form that you can easily complete online.
Who is the 'Defendant' in this complaint?
The defendant is typically the Director of the Division of Taxation. You should list this official title in the defendant field on the form.
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