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Yes! You can use AI to fill out Form DE-221, Spousal or Domestic Partner Property Petition (Probate—Decedents Estates)

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Form DE-221, Spousal or Domestic Partner Property Petition (Probate—Decedents Estates), page 1
Basic · 43/100Form Complexity Index

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What this form asks for

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Form DE-221 is a California Judicial Council form used by a surviving spouse or domestic partner to petition the court for the transfer of property from a deceased spouse or partner. It simplifies the process by allowing property to pass to the survivor without undergoing a formal, lengthy probate administration. 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 fields81
Pages2
Form Complexity IndexBasic, 43/100

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.

Petitioner and Decedent Name Completeness

Ensures that the petitioner's name (Item 1) and the decedent's name ('ESTATE OF') are both provided. These are fundamental pieces of information required to identify the parties involved in the petition. Failure to provide these names would make the form legally insufficient and result in its rejection.

Petitioner Role and Name Consistency

Validates that if the petitioner is acting as a representative (Item 2, checkboxes b, c, e, or f), the corresponding name field for the person they represent is filled out. This is crucial for establishing the petitioner's legal standing to file the petition. If a representative box is checked but the name is missing, the form cannot be processed as the petitioner's authority is unclear.

Date of Death Validity

Checks that the date of death provided in Item 3 is a valid, complete date and that it is in the past. A future or invalid date would be a logical impossibility and a critical error. This validation prevents nonsensical data entry and ensures the fundamental prerequisite for a probate action—the decedent's death—is properly recorded.

Testate Status and Will Attachment

Verifies that if the 'testate' checkbox in Item 4c is selected, an attachment is indicated. The form explicitly states that a copy of the will must be affixed as Attachment 4c. This check ensures that the necessary legal document (the will) accompanies the petition when required, preventing delays and rejections due to incomplete filings.

Survivor Status Completeness

Ensures that in Item 5a, one option from group (1) regarding children and one option from group (2) regarding issue of predeceased children are selected. This information is critical for determining legal heirs and the proper distribution of the estate. An incomplete selection in this section would leave the decedent's survivor status ambiguous, halting the legal process.

Conditional Logic for Non-Issue Heirs

This check enforces the rule for Item 6, which should only be completed if the decedent had no surviving issue (as indicated in Item 5). If Item 5 indicates there are surviving issue, Item 6 should be disabled or flagged as an error if filled. This prevents contradictory information about the decedent's line of succession.

And 8 more checks
  • Written Agreement and Attachment 8
  • Heir Information Completeness
  • Executor Information Selection
  • Probate Petition Status and Date
  • Attachment Count Consistency
  • Petitioner Signature and Date Requirement
  • Cross-Page Header Consistency
  • Petitioner Name Consistency Check

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How to Fill Out DE-221 Online for Free in 2026

What the AI walks you through.

  1. Navigate to Instafill.ai and upload or select Form DE-221.
  2. Provide your personal information as the petitioner and details about the decedent, including their date of death and residency.
  3. Use the AI assistant to accurately describe the property to be transferred, attaching legal descriptions for real property as required in Attachments 7a and 7b.
  4. List the names, relationships, and addresses of all heirs, beneficiaries, and other interested parties as specified in the form.
  5. Answer the questions regarding the decedent's will, other probate proceedings, and any existing written property agreements.
  6. Review the completed form generated by the AI for accuracy and completeness, making any necessary corrections.
  7. Electronically or manually sign the petition under penalty of perjury and file it with the correct Superior Court of California.

Common Mistakes in Completing DE-221

The ones the AI is built to catch.

Providing an Incomplete or Incorrect Property Description
Petitioners often list only a street address for real property in Attachments 7a and 7b, but the court requires the full legal description and the Assessor's Parcel Number (APN) from the property deed. Failing to provide this precise information will lead to the petition being rejected or delayed, as it is essential for creating a clear and enforceable court order transferring title. To avoid this, locate the official property deed and transcribe the legal description and APN exactly as they appear.
Failing to Attach Required Documents
This form relies heavily on attachments, and a very common error is forgetting to include them. Specifically, if the decedent was testate, a copy of the will must be attached (Attachment 4c), and property descriptions must be included in Attachments 7a and 7b. Forgetting these documents will result in an incomplete filing that the court clerk will reject, causing significant delays in the probate process.
Incomplete or Inaccurate List of Heirs and Beneficiaries
In Item 9, petitioners must list all persons named in the will and all legal heirs, but they often forget to include estranged children, relatives of a predeceased child, or beneficiaries who are not family. This is a critical error because it results in defective legal notice, which can cause the hearing to be postponed or even lead to the final order being invalidated later. It is crucial to create a complete list with correct addresses for everyone entitled to notice.
Incorrectly Stating Testate/Intestate Status
In Item 4c, a petitioner might incorrectly check that the decedent was 'testate' (had a will) or 'intestate' (did not have a will), or they check 'testate' but fail to attach the will. This is a fundamental error that can halt the entire process, as the existence of a will completely changes how property is distributed and who must be notified. Before filing, you must confirm whether a valid will exists and ensure it is properly attached if you select 'testate'.
Confusing Property Passing from Decedent with Survivor's Own Property
Petitioners frequently misunderstand the distinction between Attachment 7a and 7b. Attachment 7a is for the decedent's share of property that is passing to the survivor, while 7b is for confirming the survivor's pre-existing share of community property. Listing assets in the wrong attachment can lead to an incorrect court order and create significant property title issues in the future.
Entering Incorrect Court or Decedent Information
In the header, petitioners may file in the wrong county or misspell the decedent's name. The petition must be filed in the county where the decedent lived, and the decedent's name must be their full legal name as shown on the death certificate. These mistakes can lead to the case being rejected for improper venue or create identity verification problems that delay the proceedings.
Missing Signatures or Dates
Forgetting to sign and date the petition in the designated signature blocks on page 2 is a simple but fatal clerical error. The court cannot accept an unsigned declaration made under penalty of perjury. This oversight will cause the court clerk to immediately reject the filing, forcing you to refile and delaying your hearing date.
Misstating the Decedent's Survivor Status
In Item 5, people sometimes fail to list all of the decedent's children, such as children from a previous marriage or those who were adopted out to a third party. The form requires a complete accounting of all children and issue of predeceased children to ensure all potential heirs receive proper legal notice. An incomplete list can lead to legal challenges and jeopardize the validity of the court's final order.
Miscounting the Number of Attached Pages
Item 13 asks for the total number of pages attached to the petition, a detail that is easily overlooked or miscalculated. An incorrect count can confuse the court clerk and judge, making them believe documents are missing when they are not, which can cause unnecessary delays while the filing is manually verified. To prevent this, carefully count all attachment pages just before filing and enter the correct number in Item 13.
Selecting the Wrong Petitioner Capacity
In Item 2, the person filing must accurately state their relationship to the case, but they may select 'surviving spouse' (2a) when they are actually the 'personal representative of the surviving spouse' (2b). This mistake questions the petitioner's legal standing to file the petition and can lead to its dismissal. It is essential to read the options carefully and select the one that precisely describes the petitioner's legal role. AI-powered tools like Instafill.ai can help guide users through these choices to prevent such errors.

Frequently Asked Questions About DE-221

 

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Can I fill other forms too?
This plan is for your DE-221: 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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How does the AI fill out DE-221?
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 DE-221, 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 DE-221 to fill out?
DE-221 has a Form Complexity Index of 43 out of 100, in the basic tier: 81 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 Form DE-221, the Spousal Property Petition?
This form is used by a surviving spouse or registered domestic partner to ask the court to transfer property from the deceased person to them without having to go through a full, formal probate process. It is a simpler and faster way to handle the transfer of assets.
Who can file this petition?
The petition can be filed by the surviving spouse, the surviving registered domestic partner, or the personal representative (like a conservator or executor) of the survivor's estate, as indicated in section 2 of the form.
What is the difference between 'determination' (1a) and 'confirmation' (1b) of property?
'Determination' asks the court to transfer the decedent's share of property to the survivor. 'Confirmation' asks the court to officially recognize the survivor's existing ownership share of community property. Most petitioners request both.
Do I need to attach a copy of my spouse's or partner's will?
Yes, if the decedent had a will (was 'testate'), section 4c requires you to attach a copy of the will and any codicils. If any documents are handwritten, you must also attach a typed copy.
What information goes in Attachments 7a and 7b?
Attachment 7a lists the decedent's property you are asking the court to transfer to you. Attachment 7b lists your half of the community property you want the court to confirm as yours. For real estate, you must include the legal description and Assessor's Parcel Number.
What if we had a written agreement about our property?
If you and your deceased spouse or partner had a written agreement about how to divide community property, you must indicate this in section 8 and attach a copy of the agreement to the petition.
Who do I need to list in section 9 of the form?
You must list the names, ages, and addresses of all people named in the decedent's will and all living heirs, such as children, grandchildren, parents, or siblings, as specified in sections 5 and 6. This ensures all legally interested parties are notified.
Do I have to open a full probate case to use this form?
No, this petition is designed to avoid a full probate. In section 12, you must state whether a separate probate case has been filed, is being filed at the same time, or will not be filed at all.
What is a probate referee and why would I request one?
A probate referee is an official appointed to appraise the value of an estate's assets. You might request one (item 1c) if you need a formal valuation of the property for tax purposes or to determine its fair market value.
Where do I file the completed Form DE-221?
You must file the petition with the Superior Court of California in the county where the decedent lived. If the decedent was not a California resident but owned property here, you file it in the county where the property is located.
Can AI tools help me fill out this form?
Yes, services like Instafill.ai use AI to help you accurately auto-fill form fields. This can save you time and help prevent common errors when completing complex legal forms.
How can I fill out Form DE-221 online?
To fill this form out online, you can upload it to a platform like Instafill.ai. The service will make the document interactive, allowing you to type your information directly into the fields, save your progress, and download the completed PDF.
The PDF version of this form I have is not fillable. What can I do?
If you have a flat, non-fillable PDF, you can use a service like Instafill.ai. It can convert the static document into an interactive, fillable form that you can easily complete on your computer.
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California probate forms: Judicial Council of California Form DE-111, Petition for Probate (Probate—Decedents Estates), Affidavit for Collection of Personal Property California Probate Code Section 13100, Form DE-142/DE-111(A-3e), Waiver of Bond by Heir or Beneficiary (Probate—Decedents Estates), Form DE-140, Order for Probate, Form DE-150, Letters (Probate), Form DE-154/GC-035, Request for Special Notice (Probate), Form DE-157, Notice of Administration to Creditors, Form DE-120(P), Proof of Personal Service of Notice of Hearing—Decedent's Estate or Trust, Form DE-131, Proof of Subscribing Witness (Probate), Form DE-172, Creditor's Claim (Probate), Form DE-174, Allowance or Rejection of Creditor's Claim, Form DE-270 / GC-070, Ex Parte Petition for Authority to Sell Securities and Order, Form DE-315, Order Determining Succession to Primary Residence, Form DE-351/GC-101, Order Appointing Guardian Ad Litem—Probate, Form DE-115/GC-015, Notice of Hearing on Petition to Determine Claim to Property, Attachment to Notice of Hearing Proof of Service by Mail (Probate—Decedents' Estates and Guardianships and Conservatorships), Attachment to Notice of Hearing Proof of Personal Service (Probate—Decedents' Estates and Guardianships and Conservatorships), Form DE-125, Summons (Probate), Form DE-147, Duties and Liabilities of Personal Representative, Form DE-147S, Confidential Supplement to Duties and Liabilities of Personal Representative (Probate)

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