Yes! You can use AI to fill out Answer or Response
Form ATJ 1403.6, Answer or Response, is a legal document required in Illinois Circuit Courts for a party to respond to a civil complaint or petition filed against them. It allows the respondent to systematically address each allegation by admitting, denying, or stating a lack of knowledge. Filing this form is a critical step in the legal process to present your side of the case and avoid a default judgment. 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.
Form Complexity Index
Complex
68 / 100
| Fillable fields | 136 |
| Pages | 4 |
| Fields per page | 34 |
| Sections | 24 |
| Conditional rules | 62 |
| Tables & lists | 1 |
| Instruction pages | — |
| Instafill Form ID | IF-ANSWER-OR-RESPONSE |
ATJ 1403.6 has a complex Form Complexity Index of 68/100 — 136 fillable fields across 4 pages. Instafill’s AI completes it accurately in under a minute.
Form specifications
| Form name: | Answer or Response |
| Number of fields: | 136 |
| Number of pages: | 4 |
| FCI: | Complex (68/100) |
| Language: | English |
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How to Fill Out ATJ 1403.6 Online for Free in 2026
Are you looking to fill out a ATJ 1403.6 form online quickly and accurately? Instafill.ai offers the #1 AI-powered PDF filling software of 2026, allowing you to complete your ATJ 1403.6 form in just 37 seconds or less.
Follow these steps to fill out your ATJ 1403.6 form online using Instafill.ai:
- 1 Navigate to Instafill.ai and upload the Illinois Answer or Response form, or select it from their library of official documents.
- 2 Provide the case information, including the county, case number, and the names of the plaintiff/petitioner and defendant/respondent, allowing the AI to populate the fields.
- 3 Identify yourself as the defendant/respondent and enter the exact title of the Complaint or Petition you are responding to.
- 4 Systematically review each paragraph from the original complaint and use the guided interface to select 'Admit', 'Deny', or 'Do Not Know' for each point.
- 5 Indicate whether you are also filing separate forms for Affirmative Defenses or Counterclaims.
- 6 Complete the 'Proof of Delivery' section to specify how and when you will send a copy of the completed form to the other party or their lawyer.
- 7 Review all entered information for accuracy, electronically sign the document, and then download the completed form for filing with the appropriate Illinois Circuit Clerk.
Our AI-powered system ensures each field is filled out correctly, reducing errors and saving you time.
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Frequently Asked Questions About ATJ 1403.6
ATJ 1403.6 has a Form Complexity Index of 68 out of 100, placing it in the complex complexity tier. This score is calculated deterministically from the form’s own structure using Instafill’s published Form Complexity Index methodology, so it can be reproduced and independently verified — it is not a subjective estimate.
For ATJ 1403.6 specifically, the score reflects 136 fillable fields across 4 pages, grouped into 24 sections, and 62 conditional fields that only apply depending on earlier answers, 1 table or repeating lists. The number of fields is the largest factor in the base score (weighted 36%), followed by how difficult those fields are to complete based on their type, where free-text and signature fields count for more than simple checkboxes (26%). The number of pages that actually contain fields (15%), the amount of conditional “fill-only-if” logic (16%), and how many sections the form is divided into (7%) account for the rest of the base. On top of that base, the index adds points for tables and repeating lists, bundled instruction pages, and dense page layouts — capturing difficulty the base alone can miss.
In practical terms, a complex score means the form is demanding, with many fields, multiple pages and branching rules that are easy to get wrong. Instafill removes that effort entirely: our AI reads your information, maps each value to the correct field — including the conditional ones — and completes ATJ 1403.6 accurately in under a minute, with every field available for you to review before you download. See exactly how the Form Complexity Index is calculated.
This form is used in Illinois Circuit Courts by a Defendant or Respondent to formally reply to the allegations made in a Complaint or Petition that was filed against them. It allows you to state whether you agree with, disagree with, or lack knowledge about each claim.
You need to fill out this form if you have been named as a Defendant or Respondent in a lawsuit in an Illinois Circuit Court and have been served with a Complaint or Petition. This is your official response to the case initiated by the Plaintiff or Petitioner.
All case information, including the county, Plaintiff/Petitioner and Defendant/Respondent names, and the Case Number, can be found on the Summons and Complaint or Petition you received. It is crucial to copy this information exactly as it appears on those documents.
Choose 'Admit' if you agree the entire statement in the paragraph is true. Select 'Deny' if you disagree with any part of the statement. Use 'Do Not Know' only if you genuinely lack enough information to truthfully confirm or deny the statement.
No, you do not explain your reasoning in this section. The form is only for admitting, denying, or stating you don't know; you will have the opportunity to present your evidence and explanations later in the case.
If the Complaint lacks numbered paragraphs, you should check box 3B. This option allows you to deny everything in the Complaint except for specific statements that you write down as either 'admit' or 'do not know'.
An Affirmative Defense is a legal reason why the other party should not win, even if their claims are true. A Counterclaim is your own separate legal claim against the person who sued you, which must be related to the original case and filed at the same time as your Answer.
After completing your Answer, you must file it with the Circuit Clerk’s office in the county where the case is taking place. Then, you must send a copy to the other party (or their lawyer) as detailed in the 'Proof of Delivery' section.
The 'Proof of Delivery' section is your sworn statement to the court that you have sent a copy of your Answer to the other party. You must specify how (e.g., email, e-filing system, mail) and when you sent the documents.
If you need more space, you can use the 'Additional Paragraphs for Answer or Response' form. Remember to check the box on the main form indicating that you have attached this additional document.
Yes, services like Instafill.ai use AI to help you fill out forms accurately and save time. These tools can auto-fill fields and make the process of completing legal documents faster and easier.
To use Instafill.ai, you can upload the PDF of the 'Answer or Response' form to their website. The AI will make the form fillable online, allowing you to type your answers directly into the fields before downloading the completed document.
If you have a non-fillable or 'flat' PDF, you can use a service like Instafill.ai. It can convert the document into an interactive, fillable form that you can easily complete on your computer.
The form's instructions specify that if you are filling it out online, you can sign your name by simply typing it in the signature field. This typed signature is legally binding under Illinois Supreme Court rules.
Compliance ATJ 1403.6
Validation Checks by Instafill.ai
1
Ensures Case Number is Present and Consistent
This check verifies that the 'Case Number' field is filled in on the first page and that the same value is populated in the Case Number fields in the headers of subsequent pages. The case number is the primary identifier for a court case, and inconsistencies can lead to the document being misfiled or rejected by the clerk. If the numbers do not match, the user should be alerted to correct the discrepancy before submission.
2
Verifies Filer's Role is Selected
In Section 1.B, the user must identify their role by checking either 'Plaintiff/Petitioner' or 'Defendant/Respondent'. This validation ensures that one, and only one, of these boxes is checked. This information is fundamental to understanding the context of the response, and failure to select a role makes the filing ambiguous and potentially invalid.
3
Enforces Mutually Exclusive Response Sections (3.A vs. 3.B)
The form provides two distinct methods for responding in Section 3: checkbox 'A' for complaints with numbered paragraphs and checkbox 'B' for those without. This validation ensures that the user fills out the fields associated with only one of these sections. Allowing both to be filled would create a confusing and legally contradictory document, so the system should prevent data entry in one section if the other is chosen.
4
Validates Completeness of Paragraph Responses in Section 3.A
For each row in Section 3.A where a 'Paragraph Number' is entered, this check confirms that exactly one of the corresponding 'Admit', 'Deny', or 'Do Not Know' checkboxes is selected. This is crucial for ensuring a clear and unambiguous response to each specific allegation in the original complaint. An incomplete or multi-selected row would be legally insufficient and require clarification.
5
Validates Signature Block Logic (Self-Represented vs. Lawyer)
This check ensures that if the 'I am completing this form for myself' box is checked, the individual's contact information is provided, and the lawyer fields are disabled or ignored. Conversely, if the 'I am a lawyer...' box is checked, it validates that the Lawyer Name, Attorney Number, and Law Firm fields are completed. This prevents incomplete or conflicting filer identification, which is essential for proper communication and legal standing.
6
Ensures Proof of Delivery Method and Details are Provided
In the 'Proof of Delivery' section, the user must select a delivery method (Email, EFSP, or Mail/Hand Delivery). This validation confirms that at least one method is chosen and that the corresponding detail field (e.g., the email address for email delivery, or the mailing address) is filled out. Failure to provide this constitutes defective service, which can invalidate the filing and have serious legal consequences.
7
Validates Email Address Format
This check applies to all email input fields on the form, including the filer's, lawyer's, and recipient's email addresses. It verifies that the entry conforms to a standard email format (e.g., '[email protected]'). This is critical for ensuring that electronic service and court communications are sent to a valid destination, as required by court rules for e-filing.
8
Requires Essential Case-Identifying Information
This validation ensures that the 'County', 'Plaintiff/Petitioner', and 'Case Number' fields at the top of the form are not left blank. This information is the absolute minimum required for the court clerk to identify the case and docket the document correctly. A submission lacking this information would be rejected outright.
9
Validates Delivery Date and Time Format
The 'Proof of Delivery' section requires a 'Date' and 'Time' of service. This check validates that the date is in a valid format (e.g., MM/DD/YYYY) and that the time is also in a valid format, including AM/PM. This information creates the official record of when the document was sent, which is legally significant for deadlines and response times.
10
Conditional Requirement for Attorney Number
This validation is triggered when the 'I am a lawyer...' checkbox is selected in the signature block. It ensures that the 'Attorney Number' field is filled with a value. The attorney number is a unique identifier required by the state bar and the court system to verify the lawyer's credentials and good standing, making it a mandatory piece of information for legal representation.
11
Ensures Signature and Printed Name are Present
This check verifies that both the 'Signature /s/' and 'Print Name' fields in the main signature block are filled out. Under court rules, a signature certifies the truthfulness of the document's contents and is a strict requirement for a valid filing. An unsigned document has no legal effect and will be rejected.
12
Validates Conditional Mail Delivery Location
If the user checks the 'Mail or third-party carrier' box in the Proof of Delivery section, this validation ensures the 'Location of mailbox or third-party carrier' field is completed. This detail provides specific evidence of the act of mailing, which can be important if the service of the document is ever challenged. The form requires this detail to substantiate the chosen delivery method.
Common Mistakes in Completing ATJ 1403.6
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