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JDF 1000 – Case Information Sheet, page 1
Complex · 68/100Form Complexity Index

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What this form asks for

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The JDF 1000 Case Information Sheet is a foundational document for initiating many types of legal cases in Colorado, collecting vital identifying information for all parties and children involved. This includes names, contact details, dates of birth, and Social Security numbers, which are essential for the court to maintain accurate records and manage case communications. The information is marked as sealed for security but is fundamental to the administrative processing of the case. 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 fields90
Pages2
Sections13
Tables and lists3
Questions that depend on earlier answers28
Form Complexity IndexComplex, 68/100

The AI checks your answers before you download

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

Validates Social Security Number Format

This check ensures that all Social Security Number fields for Party 1, Party 2, and any children are entered in the standard XXX-XX-XXXX format. Correct formatting is crucial for accurate identification and data processing with government agencies. If the format is incorrect, the system should prompt the user to re-enter the number correctly before submission.

Ensures Date of Birth is a Valid Past Date

This validation verifies that all 'Date of Birth' fields are entered in a recognizable date format (e.g., MM/DD/YYYY) and that the date is not in the future. This is important for confirming identity and eligibility for legal proceedings. A failure would prevent submission and require the user to enter a valid, historical date.

Verifies Child's Age is Under 19

This check calculates the age of each child listed based on their 'Date of Birth' and the current date. It confirms that the child is under the age of 19, as specified by the form's instructions in Section 3. This is critical for determining jurisdiction and matters of custody or support. If a child is 19 or older, an error message should explain they do not meet the criteria for this section.

Conditional Requirement for Interpreter Language

This validation checks if the 'Yes' box for needing an interpreter is selected for either Party 1 or Party 2. If 'Yes' is checked, the corresponding 'language' text field must be filled out. This ensures the court can arrange for necessary interpretation services. If the language is not specified, the form submission will be blocked until the language is provided.

Party 1 Core Information Completeness

This check ensures that the most critical fields for Party 1 are not empty, including First Name, Last Name, Role, and the full mailing address (Street, City, State, Zip). This information is fundamental for case initiation, party identification, and official correspondence. A failure would halt submission and highlight the required fields that need to be completed.

Signature Execution Date Validity

This validation confirms that the execution date in the 'Verified Signature' section is a complete, valid calendar date (e.g., not April 31) and is not a future date. The execution date is a legal attestation of when the document was signed under penalty of perjury. An invalid or future date would render the signature block legally questionable and must be corrected.

And 8 more checks
  • Signature Name Consistency for Party 1
  • Child Information Group Completeness
  • Validates Email Address Format
  • Validates Phone Number Format
  • Conditional Requirement for 'Other' Pronouns
  • Party 2 Signature Requirement for Co-Petitioner
  • Completeness of Signature Location
  • Party Role Logic Check

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How to Fill Out JDF 1000 Online for Free in 2026

What the AI walks you through.

  1. Navigate to Instafill.ai and upload your JDF 1000 form, or select it from their library of official documents.
  2. Allow the AI to scan and identify all the fields on the Case Information Sheet, such as party details, children's information, and signature blocks.
  3. Answer simple questions in a chat-like interface to provide the personal details for Party 1 and Party 2, including names, roles, addresses, and contact information.
  4. Enter the required information for any children involved in the case, such as their full names, dates of birth, and Social Security numbers.
  5. Review the auto-filled form, where the AI will have populated all your answers into the correct fields on the JDF 1000.
  6. Electronically sign the document in the verified signature section and download the completed, sealed-document-ready Case Information Sheet.

Common Mistakes in Completing JDF 1000

The ones the AI is built to catch.

Using Nicknames or Inconsistent Legal Names
People often enter a nickname or an abbreviated version of their name instead of the full legal name that appears on official documents like a driver's license or birth certificate. This can cause the court to reject the filing because the name doesn't match official records, leading to delays. To avoid this, always use your complete and official legal name for Party 1, Party 2, and all children listed.
Forgetting to Sign or Date the Declaration
The verified signature section is one of the most critical parts of the form, yet it is frequently left incomplete. Forgetting to sign, print your name, or enter the date of execution invalidates the document, as you have not legally sworn to the truthfulness of the information. The court will reject an unsigned form, forcing you to correct and refile it, which delays your case. Always double-check that both signature sections (if applicable) are fully completed.
Providing an Incomplete Mailing Address
A common error is omitting the apartment, suite, or unit number, or making a typo in the street name or zip code. An incomplete or incorrect address prevents the court and other parties from sending you critical legal notices about your case. This could cause you to miss a hearing or an important deadline, which could have severe negative consequences. Carefully review all address fields for accuracy before submitting.
Omitting or Incorrectly Formatting the Case Number
If this form is being filed in an existing case, filers often forget to enter the case number at the top of the page or enter it with incorrect formatting (e.g., missing letters or dashes). Without the correct case number, the court clerk cannot link the document to the proper case file, causing it to be misplaced or rejected. To prevent this, carefully copy the case number exactly as it appears on other official court documents for this matter.
Overlooking the Military Service Checkbox
The checkbox to indicate a party's active military status is small and easily missed, but it is legally significant. Federal laws, like the Servicemembers Civil Relief Act (SCRA), provide special protections to active-duty military personnel, and failing to report this status can complicate and delay legal proceedings. Always confirm the military status for both parties and check the box if it applies.
Confusing Party Roles like 'Petitioner' and 'Respondent'
Individuals unfamiliar with legal terminology may incorrectly identify their role, for example, listing themselves as the 'Respondent' when they are the one initiating the case ('Petitioner'). This creates confusion for the court and may require an amended filing to correct the error. As a rule, the person who starts the case is the Petitioner, and the other party is the Respondent; if filing together, both are Co-Petitioners.
Forgetting to List All Minor Children
Filers sometimes accidentally omit a child under the age of 19 or mistakenly list children who are 19 or older. The court requires a complete list of all minor children of the relationship for matters related to custody and support. An incomplete or inaccurate list can create significant legal problems later on, so ensure every child under 19 is listed with their correct information.
Requesting an Interpreter Without Specifying the Language
A user might check the 'Yes' box to request an interpreter but then forget to write in the specific language needed in the space provided. This makes the request unusable, as the court staff will not know which language interpreter to schedule for a hearing. If you need an interpreter, always remember to specify the language to avoid delays. AI-powered form fillers like Instafill.ai can help by reminding you to complete conditional fields like this.
Missing Signature from Party 2 on a Joint Filing
When two parties file together as 'Co-Petitioners,' both must sign the form in their respective signature blocks. It's a common mistake for only one party to sign, rendering the joint petition incomplete. The court will not accept a jointly filed document unless both parties have signed and dated it, which will halt the case until a properly signed version is submitted.
Illegible Handwriting from Filling a Non-Fillable PDF
Many court forms are only available as flat, non-fillable PDFs, forcing users to print and complete them by hand. This often results in illegible handwriting, which can lead to data entry errors by the court clerk or outright rejection of the form. To ensure clarity and professionalism, it is better to use a tool like Instafill.ai, which can convert a non-fillable PDF into an interactive form that you can type into directly.

Frequently Asked Questions About JDF 1000

 

Is it really free for 7 days?
Yes. You pay $0 today. Cancel before Nov 4 and you are never charged. Keep it, and it is $19.99 a month for 5 fills of your JDF 1000.
Can I fill other forms too?
This plan is for your JDF 1000: 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.
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From your account, in two clicks, any time. No email, no call.
How does the AI fill out JDF 1000?
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 JDF 1000, 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 JDF 1000 to fill out?
JDF 1000 has a Form Complexity Index of 68 out of 100, in the complex tier: 90 fillable fields across 2 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 JDF 1000 Case Information Sheet?
The JDF 1000 Case Information Sheet is used to provide the court with essential, confidential background information about the parties and any children involved in a case. This data helps the court manage the case file and is not accessible to the public.
Who should be listed as Party 1 and Party 2?
Party 1 is typically the person initiating the case, known as the Petitioner. Party 2 is the other person involved, who is usually the Respondent or a Co-Petitioner if you are filing the case together.
What does 'Document Security: Sealed' mean?
This notice indicates that the form contains sensitive personal information, such as Social Security Numbers. The document will be kept confidential by the court and will not be part of the public record to protect your privacy.
Do I have to provide Social Security Numbers?
Yes, you should provide Social Security Numbers for all parties and children if they are available. This information is required for case identification and for matters like child support enforcement, and it is kept confidential by the court.
What if I don't know all the information for Party 2?
Fill out the form as completely as you can with the information you have. If you do not know certain details for Party 2, you may have to leave them blank, but be prepared that the court might require you to make a diligent effort to find the missing information.
What should I do if there are more than two parties in my case?
If your case involves more than two parties, you must complete and attach form JDF 7 for each additional person. You will need to provide the same detailed information for them as you did for Party 1 and Party 2.
How do I list children if I have more than the form allows?
The form has space to list several children under the age of 19. If you have more children than the space provided, simply attach additional pages with the required information (Full Name, Sex, Date of Birth, Social Security No.) for each child.
Does Party 2 need to sign this form?
Party 2 only needs to sign the form if they are filing jointly with Party 1 as a Co-Petitioner. If Party 2 is a Respondent, they will not sign this initial filing.
Why does the form ask if a party is in the military?
This information is important because active-duty service members have specific legal protections under laws like the Servicemembers Civil Relief Act (SCRA). The court needs to know a party's military status to ensure legal procedures are followed correctly.
Where do I submit the completed JDF 1000 form?
You will file the completed Case Information Sheet with the court clerk at the same time you file your initial petition or complaint to start your case. It is a standard part of the initial case filing packet.
Can I use an AI tool to help me fill out this form?
Yes, you can use AI-powered services like Instafill.ai to help fill out your form. These tools can auto-fill fields accurately, saving you time and helping to prevent common errors.
How can I fill out the JDF 1000 form online?
To fill out this form online, you can upload the PDF to a platform like Instafill.ai. The service will make the document interactive, allowing you to type your information directly into the fields and then download the completed form for printing and filing.
What can I do if my PDF copy of the form is not fillable?
If you have a non-fillable or 'flat' PDF, services like Instafill.ai can convert it into an interactive, fillable form. This allows you to easily type your answers instead of having to print the form and complete it by hand.
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