Petition for Determination of Heirship (Sec. 473.663 RSMo)

This page is for educational purposes only and is not legal advice. Forms and requirements change frequently — verify the current version with your local probate court or an attorney.

Last updated: August 16, 2026

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About Petition for Determination of Heirship (Sec. 473.663 RSMo)

Petition for Determination of Heirship (Sec. 473.663 RSMo) is a probate form used during estate settlement in Missouri.

Where to get the official form

The link below was the best source we found for Petition for Determination of Heirship (Sec. 473.663 RSMo), but we could not automatically confirm it points to an official court version. Verify it is current and official before relying on it:

Unverified source

Missouri official probate forms →

Source: 16thcircuit.org

Link last checked: August 16, 2026

How to file Petition for Determination of Heirship (Sec. 473.663 RSMo) in Missouri

  1. Step 1 — Confirm you have the correct formDouble-check that Petition for Determination of Heirship (Sec. 473.663 RSMo) is the right form for your situation. Missouri probate forms are revised periodically, so verify the name and number against your court's current form list before you start.
  2. Step 2 — Complete every required fieldFill out Petition for Determination of Heirship (Sec. 473.663 RSMo) carefully and review it for errors before filing. Probate cases can already take months — a small mistake on the form can set your timeline back further.
  3. Step 3 — Get it notarized or witnessed if requiredSome probate forms must be signed in front of a notary or witnesses. Check the instructions on the form itself, and arrange notarization before you file if it's required.
  4. Step 4 — File it with the correct courtSubmit Petition for Determination of Heirship (Sec. 473.663 RSMo) to the probate court or county clerk handling the estate — usually in the Missouri county where the deceased lived. Ask the clerk how they prefer to receive filings (in person, by mail, or e-filing).

Working through the Petition for Determination of Heirship (Sec. 473.663 RSMo)? SwiftProbate builds a personalized, step-by-step checklist for settling the estate — so you know which forms to file, in what order, and by when.

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Probate in Missouri

See the full Missouri probate guide for filing deadlines, small-estate options, timelines, costs, and county courthouse details.

Read the Missouri probate guide →

Frequently Asked Questions

What is Petition for Determination of Heirship (Sec. 473.663 RSMo)?
Petition for Determination of Heirship (Sec. 473.663 RSMo) is a probate form used during estate settlement in Missouri. It's filed with the probate court as part of administering a deceased person's estate.
Where do I file Petition for Determination of Heirship (Sec. 473.663 RSMo) in Missouri?
Probate forms are filed with the probate court or county clerk in the Missouri county where the deceased person lived. Our Missouri probate guide can help you find the right courthouse, filing fees, and local requirements.
Do I need a lawyer to complete Petition for Determination of Heirship (Sec. 473.663 RSMo)?
Many people complete probate forms themselves, especially for smaller or uncontested estates. Complex estates may benefit from professional advice. SwiftProbate is an informational tool that helps you understand and organize the process — it is not a law firm and does not provide legal advice.
Is Petition for Determination of Heirship (Sec. 473.663 RSMo) available online?
Most Missouri probate forms are published as PDFs by the state courts or the county clerk. You can find the official source linked above.

Other Missouri Probate Forms

Affidavit to Establish Title of Distributee to Property in Estate of Less Than $40,000 - Small Estate - IntestateAffidavit to Establish Title of Distributee to Property in Estate of Less Than $40,000 - Small Estate - TestateApplication for Letters of Administration (Sec. 473.017 RSMo)Application for Letters Testamentary / Application for Letters of Administration with Will Annexed (Form 10070)

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Disclaimer: This page is for informational purposes only and does not constitute legal advice. Probate forms and requirements vary by state, county, and individual circumstances, and change over time. Always verify the current form and instructions with your local probate court, and consult a qualified attorney for advice specific to your situation. SwiftProbate is not a law firm and does not provide legal representation.