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Form CN 10328, State Tax Complaint Packet, page 1
Basic · 40/100Form Complexity Index

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What this form asks for

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The State Tax Complaint Packet, Form CN 10328, is the official set of documents required to file a complaint with the Tax Court of New Jersey to contest a state tax assessment or the denial of a refund. Filing this packet correctly is a critical first step in the legal process to challenge a tax-related decision made by a state agency. 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 fields50
Pages4
Form Complexity IndexBasic, 40/100

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.

Ensures Plaintiff or Attorney Contact Information is Complete

This check verifies that the primary contact information, including name, address, and telephone number, is fully provided for either the attorney or the self-represented plaintiff. This information is critical for all official court correspondence and notifications. A failure to provide complete contact details would prevent the court from processing the complaint, as there would be no way to communicate with the filing party.

Verifies Consistency of Plaintiff and Defendant Names

This validation ensures that the Plaintiff and Defendant names entered on the Case Information Statement (page 1) are identical to the names entered on the Complaint form (page 2). Inconsistent names can create legal ambiguity, confusion in court records, and issues with case indexing. A mismatch would require an amended filing, delaying the legal proceedings.

Validates Format of 'Amount of Tax in Dispute'

This validation confirms that the value entered in the 'Amount of Tax in dispute' field is a valid numerical or currency format, without any text or special characters other than those appropriate for currency. An invalid format could cause data corruption or misinterpretation of the case's value. The system should reject submissions with invalid characters to ensure data integrity for court records and proper case classification.

Cross-Validates Disputed Tax Amount with Small Claims Question

This check verifies logical consistency between the numerical 'Amount of Tax in dispute' and the answer to the question 'Is the amount of the tax in dispute... $5,000 or less?'. If the amount entered is greater than $5,000, the answer to the question must be 'No', and if it is $5,000 or less, the answer must be 'Yes'. This validation prevents procedural errors and ensures the case is correctly routed and categorized from the outset.

Requires ADA Accommodation Details if Needed

This validation ensures that if the user answers 'Yes' to needing accommodations under the Americans with Disabilities Act, the corresponding description field identifying the requirements is not left empty. This is crucial for the court to make the necessary arrangements to ensure accessibility. Failure to provide details would prevent the court from fulfilling its obligation to provide a required accommodation, potentially delaying hearings.

Requires Language Specification for Interpreter

This check confirms that if the user indicates an interpreter is needed by selecting 'Yes', they must also specify the required language in the associated text field. The court cannot arrange for a qualified interpreter without knowing the specific language needed. This validation prevents delays and ensures the participant's right to be understood during court proceedings is met.

And 6 more checks
  • Verifies Attachment of Determination or Assessment Notice
  • Confirms Certification of Personal Identifier Redaction
  • Validates Proof of Service Dates
  • Validates Attorney Email Address Format
  • Ensures Basis of Complaint is Selected
  • Requires Date for All Signatures

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How to Fill Out CN 10328 Online for Free in 2026

What the AI walks you through.

  1. Navigate to Instafill.ai and upload the State Tax Complaint Packet (Form CN 10328) or select it from their template library.
  2. Use the AI assistant to accurately fill in the plaintiff's or filing attorney's information, including name, address, and contact details.
  3. Complete the State Tax Case Information Statement (CIS-State) by providing details about the plaintiff, defendant, tax type, and the amount in dispute.
  4. Clearly articulate the facts and contentions for the complaint, explaining the basis for contesting the tax assessment or refund denial.
  5. Attach all required supporting documents, such as the final determination, notice of assessment, or certificate of debt.
  6. Review all entered information for accuracy, then electronically sign and date the complaint and the Proof of Service sections.
  7. Download the completed packet and follow the official instructions to serve the complaint to the Division of Taxation and the Attorney General, and file it with the Tax Court Management Office.

Common Mistakes in Completing CN 10328

The ones the AI is built to catch.

Failing to Properly Serve All Parties
Filers often misunderstand the service requirements, sending the complaint only to the court or to just one of the two required state agencies. This can lead to the complaint being deemed improperly filed and potentially dismissed for missing the statutory deadline. To avoid this, carefully follow the instructions on page 5, ensuring the complaint is served on both the Director of the Division of Taxation and the Office of the Attorney General using the specified email addresses.
Forgetting to Attach the Contested Notice
A frequent and critical error is failing to attach a copy of the final determination, notice of assessment, or denial of claim being contested. This happens when filers overlook the explicit instructions in Part A and the notes on page 3. Without this document, the court has no basis for the complaint, which will lead to rejection of the filing and significant delays.
Submitting Documents with Unredacted Personal Identifiers
People often forget to redact confidential information like Social Security numbers or full bank account numbers from their submitted documents, as required by Court Rule 1:38-7(b). This oversight exposes sensitive personal data and violates court rules, creating potential identity theft risks. Before filing, meticulously review every page to black out all confidential personal identifiers listed on page 3 of the packet.
Submitting an Incomplete or Unsigned Proof of Service
The 'Proof of Service' on page 4 is often left blank, unsigned, or undated after the filer has served the documents. An invalid Proof of Service can nullify the entire filing, as the court has no evidence that the defendant was properly served. This can lead to case dismissal, especially if the filing deadline passes before the error is corrected.
Errors with the Filing Fee Payment
Submitting the complaint without the required filing fee, or making the check payable to the wrong entity (e.g., 'Tax Court' instead of 'Treasurer, State of New Jersey'), is a common administrative mistake. This happens due to simple oversight of the instructions at the bottom of page 1. Such errors will prevent the complaint from being officially filed, which can be fatal if the 90-day deadline passes before the error is corrected.
Incorrectly Identifying the Defendant
The plaintiff may incorrectly name the defendant as the 'State of New Jersey' or the 'IRS' instead of the 'Director, Division of Taxation' as required for most state tax disputes. This error occurs from a misunderstanding of legal procedure and can cause the complaint to be procedurally defective, requiring amendment and causing delays. Always verify the correct defendant, which is typically the director of the specific state agency that issued the assessment.
Providing an Insufficient Factual Basis for the Complaint
In the 'Facts and contentions' section, filers often provide vague statements like 'the tax is wrong' without detailing the specific facts, arguments, or legal reasons for their dispute. A weak or unsupported statement can result in the complaint being deemed insufficient, potentially leading to a motion to dismiss from the defendant. You must clearly explain why you believe the assessment or denial is incorrect.
Entering Inconsistent Plaintiff or Attorney Information
Filers sometimes enter slightly different names, addresses, or contact details on the Case Information Statement (page 1) and the Complaint form (page 2). This manual data entry error creates confusion and can lead to important court notices being sent to the wrong address. Since this form is a non-fillable PDF, using a tool like Instafill.ai can convert it to a fillable version and help ensure consistency by auto-populating information across sections.
Misstating the 'Amount of Tax in Dispute'
When filling out Part A, question 4, people frequently include penalties and interest in the 'Amount of Tax in dispute' field. The form specifically asks for the base tax amount, which is used to determine if the case qualifies for the Small Claims Division. An incorrect amount can lead to the case being misclassified, affecting the procedures and timeline of the dispute.
Omitting Statutory Citations
Filers, especially those without legal representation, often leave the 'Statutory Citation(s)' field (N.J.S.A.) empty because they don't know what it is or where to find it. This information is usually located on the notice of assessment or final determination from the Division of Taxation. Omitting the specific tax law being contested makes the complaint incomplete and can cause processing delays.

Frequently Asked Questions About CN 10328

 

Is it really free for 7 days?
Yes. You pay $0 today. Cancel before Nov 5 and you are never charged. Keep it, and it is $19.99 a month for 5 fills of your CN 10328.
Can I fill other forms too?
This plan is for your CN 10328: 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 10328?
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 10328, 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 10328 to fill out?
CN 10328 has a Form Complexity Index of 40 out of 100, in the basic tier: 50 fillable fields across 4 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 Packet?
This packet is used to file a formal complaint with the Tax Court of New Jersey to legally contest a state tax assessment or the denial of a refund claim from the Director of the Division of Taxation.
Who needs to fill out this form?
Any taxpayer or their attorney who wishes to dispute a final determination, assessment, or refund denial related to New Jersey state taxes must file this complaint to have their case heard in Tax Court.
What is the State Tax Case Information Statement (CIS-State)?
The CIS-State is a mandatory summary sheet that captures key details about your case. It must be completed and attached to the front of your complaint when you file.
What documents do I need to attach to my complaint?
You must attach a copy of the final determination you are contesting. If you do not have a final determination, you must attach a copy of the notice of assessment or the denial of your claim for a refund.
Is there a deadline for filing this complaint?
Yes, the complaint must be received in the Tax Court Administrator's Office within the 90-day time period specified by court rules after the date of the notice you are contesting.
Where do I send the completed complaint packet?
Mail the original complaint, supporting documents, and filing fee 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 the email addresses provided on the form.
Is there a filing fee associated with this complaint?
Yes, a filing fee is required. You must include a check made payable to 'Treasurer, State of New Jersey' with your mailed complaint packet.
What does it mean to 'redact confidential personal identifiers'?
You are required to remove or black out sensitive information like Social Security numbers, driver's license numbers, and full financial account numbers from all documents you submit to the court to protect your privacy.
How do I complete the 'Proof of Service' section?
This section is your sworn statement certifying the date and method you used to deliver a copy of the complaint to both the Director of the Division of Taxation and the Attorney General of New Jersey.
Do I have to pay the disputed tax before filing a complaint?
The form asks whether the tax, interest, and penalty have been paid, but it does not state that payment is a prerequisite for filing. You should answer the question accurately based on your situation.
What if the tax amount I'm disputing is $5,000 or less?
You must indicate on the Case Information Statement if the disputed tax amount is $5,000 or less. This information helps the court determine if your case might be handled under small claims procedures.
Can AI tools help me fill out this form?
Yes, services like Instafill.ai use AI to accurately auto-fill form fields, which can save you time and help prevent errors. This is especially useful for entering your name, address, and other details that appear multiple times.
How can I use Instafill.ai to complete this packet online?
Simply upload the State Tax Complaint Packet PDF to the Instafill.ai platform. The AI will identify all the fields, allowing you to enter your information once and have it automatically and accurately populated throughout the document.
The PDF version of this form I found is not fillable. What can I do?
You can use a service like Instafill.ai, which is designed to convert flat, non-fillable PDFs into interactive, fillable forms. This allows you to easily type your information directly into the fields online before printing for submission.
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