Most of what adult children need to know about Missouri estate and incapacity planning is concentrated in a small number of documents and a handful of state-specific rules — the most distinctive being Missouri's detailed POA statute and the Beneficiary Deed for real estate.
The four documents to have in place
1. Missouri Durable Power of Attorney (RSMo §404.700 et seq.)
Missouri's Durable Power of Attorney Law is one of the more carefully drafted state POA statutes.1 It sets out:
- Specific provisions for "general" versus "specific" authority, with explicit rules about which powers must be specifically granted.
- Detailed gift authority — the agent can make gifts only if the document explicitly grants that authority. Generic POAs may lack gift authority that families later wish they had for Medicaid planning or estate-tax management.
- Accountings to interested parties under certain conditions, including by court order if requested by a beneficiary or family member with standing.
- Specific durability language — a durable POA survives incapacity if so designated; without that language, the POA terminates upon incapacity, which is the opposite of what most families need.
Cost to draft a Missouri-tailored DPOA typically runs $250–$700. A generic out-of-state POA may be accepted but often less smoothly than a Missouri-specific document.
2. Missouri Durable Power of Attorney for Health Care (RSMo §404.800 et seq.)
Missouri treats medical decision-making separately from financial decision-making. The Durable Power of Attorney for Health Care names a person to make medical decisions when your parent cannot communicate. Missouri law allows this to be combined with a Health Care Directive (Living Will) under RSMo §459 in a single instrument, which most Missouri attorneys do as a matter of routine.2
The Missouri Bar publishes a free template for health-care POAs and directives.
3. Last Will and Testament
A Missouri will needs to be in writing, signed by the testator, and witnessed by two competent witnesses. Missouri allows self- proving wills with a notarized self-proving affidavit, which simplifies probate. Without a will, intestacy under RSMo §474.010 et seq. governs — not always the result your parent would have chosen, especially in blended-family situations.
4. Missouri Beneficiary Deed (RSMo §461.025)
Missouri's Beneficiary Deed is one of the more useful estate- planning tools in the country.3The deed names a beneficiary who receives title automatically upon the owner's death. The owner retains full control during life — can revoke, sell, or modify the deed. To be effective, the deed must be properly drafted, executed, notarized, and recorded with the County Recorder during the owner's lifetime.
When to add a revocable living trust
For Missouri families with significant assets, multiple properties (especially in different states), or complex family situations (second marriages, special-needs beneficiaries), a revocable living trust often makes sense as the centerpiece of the plan. The trust avoids probate, provides privacy, and offers more flexibility than a Beneficiary Deed plus designations alone. Cost is typically $2,000–$4,500 for a fully funded trust through a Missouri elder-law attorney.
No state estate tax, no state inheritance tax
Missouri has neither a state estate tax nor a state inheritance tax. The state did not re-enact an estate tax after the federal pickup credit was eliminated in 2005. This leaves only the federal estate tax, which applies to estates exceeding the federal exemption (~$13.99M per individual in 2025; the One Big Beautiful Bill Act in 2025 extended portions of TCJA — check current federal exemption before relying on specific numbers).4For Missouri families below the federal threshold — the vast majority — estate planning is about probate avoidance, incapacity planning, and family coordination, not tax minimization.
Missouri probate
Missouri probate is administered through the Probate Division of the Circuit Court under the Missouri Probate Code (RSMo §472–475). There are several procedural paths:
- Independent administration. The personal representative manages the estate with limited court supervision. The most common path for routine estates.
- Supervised administration. Required when there is a dispute or the will or court directs it. Slower and more costly.
- Small Estate Affidavit.Available when total probate personal property is $40,000 or less and at least 30 days have passed since death (RSMo §473.097). The collected-by-affidavit process avoids formal probate. Real estate generally cannot be transferred this way — but a Beneficiary Deed (executed during life) handles real estate without probate.
Updating an out-of-state estate plan after moving to Missouri
Out-of-state wills are generally valid in Missouri if they were valid where executed (RSMo §474.337) — but they're often suboptimal under Missouri law. Most common issues:
- A POA from a state without Missouri's detailed gift-authority framework, which may not satisfy Missouri institutions
- A plan that doesn't use the Missouri Beneficiary Deed for the family home, missing a major probate-avoidance lever
- A trust drafted under another state's law that doesn't interact cleanly with Missouri creditor or homestead rules
A Missouri review of an out-of-state plan typically runs $250–$500 and catches most issues.5
What to do this quarter
- Locate (or create) your parent's four documents: Durable POA, Durable POA for Health Care, Will, and (where applicable) Beneficiary Deed.
- If documents exist but are more than five years old, have them reviewed.
- Confirm beneficiary designations on bank, retirement, and life-insurance accounts.
- Consider whether a Beneficiary Deed on the family home is worth recording now — for most Missouri families, it is.
- For the Medicaid planning picture, see the MO HealthNet guide.