A complete Missouri estate plan needs a valid will, financial and health care powers of attorney, an advance directive, updated beneficiary designations, a guardianship nomination for minor children, and a written asset list. Skipping any one leaves a gap a court or family member ends up filling. See the Missouri estate planning hub for how these fit together.
Key Takeaways
- A valid Missouri will requires a written document, the testator's signature, and 2 witnesses under RSMo section 474.320.
- A financial power of attorney and a health care power of attorney are separate documents that cover different decisions.
- Beneficiary designations on retirement accounts and life insurance override what your will says, so they need their own review.
- Parents of minor children should name a guardian in the will itself, since a power of attorney cannot do that.
Do you need a will as the anchor document?
Yes. A will names an executor, directs who receives your property, and lets you nominate a guardian for minor children. Under RSMo section 474.320, a Missouri will must be in writing, signed by the testator (or by someone else in the testator's presence and at the testator's direction), and signed by 2 competent witnesses. Without a signed, witnessed will, Missouri intestacy law decides who inherits, regardless of what you actually wanted.
See how to make a will in Missouri for the full execution walkthrough, including self-proving affidavit rules.
What does a financial power of attorney add to the plan?
A financial power of attorney lets a person you trust manage your bank accounts, pay bills, and handle property if you become unable to do it yourself. Missouri law governs how the document is signed and when the agent's authority becomes durable, meaning it survives your incapacity. See RSMo section 404.700 for the controlling statute on execution and durability.
Full walkthrough: how to make a power of attorney in Missouri.
Why does a health care directive belong on the checklist?
A health care power of attorney (sometimes paired with a living will or advance directive) names someone to make medical decisions if you cannot communicate, and it can state your wishes about life-sustaining treatment. Without one, family members may have to petition a court for guardianship authority just to talk to your doctors. See how to make a living will in Missouri for the specific form and witnessing rules that apply.
Do beneficiary designations need to match the will?
Retirement accounts, life insurance policies, and payable-on-death bank accounts pass by beneficiary designation, not by the will. If the beneficiary form still lists an ex-spouse or a person who died before you, that form controls over what the will says. Review every designation whenever you update your estate plan, especially after a marriage, divorce, or birth.
Should you add a guardianship nomination for minor children?
If you have minor children, name a guardian in the will. A power of attorney ends at death and cannot appoint a guardian, so this nomination has to live in the will itself. Courts generally follow a parent's written nomination unless there is a specific reason not to.
Is a living trust part of a Missouri estate plan?
Not everyone needs one, but a living trust can move real property and other assets outside of probate, which matters if you own a home or property in more than one state. A trust is a supplement to the will and power of attorney documents, not a replacement for either. Read the general estate planning overview for how a trust fits alongside the rest of the checklist.
Where should you keep an asset inventory?
Write down account numbers, real property, digital accounts, and where the original signed documents are stored. Give a copy, or at least the location, to your executor and to the agent named in your financial power of attorney. A plan that no one can find is functionally the same as no plan.
List real estate with the county where it is recorded, bank and brokerage accounts with the institution name, and any life insurance policies with the policy number. Include usernames or a password manager reference for digital accounts, since Missouri banks and email providers will not release access without documentation, and a court order can take months to obtain.
What happens if you move to Missouri from another state?
A will, power of attorney, or health care directive that was validly executed in your prior state generally remains valid in Missouri, but the underlying rules on witnesses, notarization, and durability language can differ enough that an update is worth doing. Review each document against RSMo section 474.320 and RSMo section 404.700 after a move, and re-sign anything that does not clearly meet Missouri's formalities.
What role does a successor executor or agent play?
Name a backup executor in the will and a backup agent in each power of attorney. If your first choice cannot serve, whether from death, relocation, or simple unavailability, a named successor keeps the plan working without a trip to court to appoint someone new. Skipping this step is one of the most common gaps in a DIY estate plan.
What is the honest starting point?
Start with the will and the two powers of attorney. That combination covers property, medical decisions, and guardianship for the largest share of Missouri households. Add a trust later if your situation calls for it.
FastWill's will builder walks you through a state-compliant Missouri will, and you can add the supporting documents from the same checklist.
Frequently Asked Questions
What is the first document I should complete in Missouri?
Start with a signed, witnessed will. It is the anchor document and the only one that can nominate a guardian for minor children.
Do I need a lawyer to complete an estate planning checklist in Missouri?
Not necessarily. A DIY will and power of attorney done correctly, with the right number of witnesses and signatures under RSMo section 474.320, are valid in Missouri. Complex situations, such as blended families or a family business, are better suited to an attorney.
How often should I update my Missouri estate plan?
Review it after a marriage, divorce, birth, death in the family, or a major move. Beneficiary designations in particular drift out of date and need their own check.
Does a will avoid probate in Missouri?
No. A will directs who inherits, but the estate still typically goes through probate. A living trust is the tool that avoids probate for the assets placed in it.
Can one power of attorney cover both money and medical decisions?
Usually these are two separate documents in Missouri, a financial power of attorney and a health care power of attorney, each with its own signing requirements.
Who should I name as executor or agent?
Pick someone organized and trustworthy who is willing to serve, and name a backup in case your first choice cannot act. The role does not require legal training, but it does require follow-through.
Ready to build the anchor document of your plan? Start with the Missouri will builder.
