How to Write a Will for an Aging Parent (And When DIY Is Enough)

Most adult children assume their aging parents have a will. Most of the time, they don't — or if they do, it hasn't been updated since the 1990s and reflects a completely different family and financial situation.

If you're trying to help a parent get their will sorted, this guide walks through what a valid will actually requires, what goes into it, when a simple DIY approach is fine, and when you need a lawyer. We'll also cover the most common mistakes families make that render a will useless or contested.

Why a Will Is Non-Negotiable

When someone dies without a will — called dying "intestate" — the state decides what happens to their assets. Every state has intestacy laws that distribute property in a fixed order: spouse first, then children, then other relatives. That formula doesn't account for:

• A parent who is separated but not divorced (the estranged spouse may inherit)
• Stepchildren who aren't legally adopted
• A sibling your parent was estranged from and explicitly didn't want to inherit
• A grandchild your parent wanted to provide for directly
• Charitable causes your parent cared about
• Sentimental items they wanted specific people to have

The result is often not what the parent would have chosen — and it can trigger family conflict that damages relationships for years.

Beyond asset distribution, a will also names an executor: the person legally authorized to settle the estate, pay debts, file final tax returns, and distribute assets. Without one named in a will, the court appoints an administrator, which causes delays and sometimes leads to the wrong person being in charge.

What Makes a Will Legally Valid

A will doesn't have to be drafted by a lawyer to be valid. But it does have to meet your state's legal requirements. Most states require:

1. The person must have testamentary capacity. The person making the will (the "testator") must be at least 18 years old and of "sound mind" — meaning they understand what a will is, what property they own, who their natural heirs are, and the effect of signing the will. This is critically important for aging parents: a will signed after a dementia diagnosis may be challenged as lacking capacity. The window to act is while your parent still clearly understands what they're signing.

2. The will must be in writing. Verbal wills ("nuncupative wills") are recognized in only a handful of states and only in very limited circumstances. For practical purposes, assume a will must be written.

3. The testator must sign it. If the person is physically unable to sign, most states allow them to direct someone else to sign in their presence.

4. It must be witnessed. Most states require two adult witnesses who watched the testator sign and who themselves sign the will. Witnesses should not be beneficiaries — having an inheriting child witness the will can void or reduce their inheritance in some states.

5. Some states require notarization. Not all, but many. A "self-proving affidavit" — a notarized statement attached to the will — means probate courts can accept the will without tracking down witnesses after death. It's worth doing even when not required.

Holographic wills — entirely handwritten and signed by the testator, with no witnesses — are valid in about 25 states. If your parent is in poor health and needs something in writing immediately, a holographic will is better than nothing. But it should be replaced with a properly witnessed will as soon as possible.

What a Basic Will Should Include

Here's what needs to go into a standard simple will:

Personal identification. Full legal name, date of birth, current address, and a statement revoking all prior wills (this prevents old documents from creating ambiguity).

Appointment of executor. Name your primary executor and an alternate in case the first person is unable or unwilling to serve. The executor does not have to be a family member. Many people choose a trusted adult child, but naming a professional executor (a bank or attorney) is also an option for complex estates.

Asset distribution. Who gets what. This can be specific ("my wedding ring goes to my daughter Sarah") or general ("my remaining estate to be divided equally among my children"). You can also establish gifts to charity here.

Guardianship of minor children. If your parent has any minor dependents (less common at this life stage, but possible with young grandchildren in their care), the will names guardians.

Residuary clause. A catch-all that says what happens to anything not specifically mentioned — "the remainder of my estate" goes to named beneficiaries. Without this, leftover assets can end up going through intestacy anyway.

Specific bequests for sentimental items. This is where families fight most. Money can be divided; grandma's china cannot. If your parent has items they want specific people to receive, naming those items and recipients explicitly in the will (or in a separate written memorandum referenced by the will) prevents disputes.

A Note on What a Will Cannot Control

A will only controls "probate assets" — property that's owned solely in the deceased's name. Several common assets pass outside the will entirely:

• Accounts with beneficiary designations (IRAs, 401(k)s, life insurance policies, payable-on-death bank accounts) go directly to whoever is named as beneficiary, regardless of what the will says
• Jointly titled property passes automatically to the surviving joint owner
• Assets held in a trust are distributed according to the trust document

This means your parent's will needs to be reviewed alongside their beneficiary designations. An outdated beneficiary designation — say, an ex-spouse named on a life insurance policy — overrides the will entirely.

DIY Wills: When They Work and When They Don't

DIY is generally sufficient when:

• The estate is straightforward: a house, bank accounts, retirement accounts, personal property
• Family dynamics are harmonious — no anticipated disputes
• Assets go to a spouse and/or children in equal or simple shares
• There are no minor children needing guardianship provisions
• No business ownership or complex assets like foreign property

You need an attorney when:

• There is family conflict — a disinherited relative, blended family complexity, or a sibling your parent suspects will contest the will. An attorney's involvement creates a paper trail of capacity and intent that's much harder to challenge
• Your parent has cognitive decline and capacity may be questioned — an attorney can document the capacity assessment contemporaneous with signing
• The estate includes a business, foreign property, or significant assets that benefit from tax planning
• Your parent wants to establish a trust for a beneficiary with special needs or provide ongoing income to a surviving spouse
• Your parent wants to disinherit a spouse or child (this requires careful legal handling to be enforceable)

Free and low-cost will templates are available through services like LegalZoom, Trust & Will, and your state's bar association referral program. These work for simple estates. The risk with any template is that an error in execution — wrong witnesses, missing notarization, ambiguous language — can create problems that only emerge years later during probate.

The Executor's Job: Make Sure Your Parent Chooses Carefully

Naming an executor is one of the most consequential decisions in a will, and it's often made without much thought.

The executor must:

• Locate and file the will with the probate court
• Notify beneficiaries and creditors
• Manage estate assets during probate (pay bills, maintain property)
• File the deceased's final income tax return
• Settle debts
• Distribute assets to beneficiaries

This can take months to over a year for a complex estate. The executor needs to be someone who is organized, honest, and willing to deal with paperwork and potentially conflict. Geographic proximity helps. So does good judgment.

Naming co-executors (for example, two adult children jointly) sounds fair but often creates decision-making gridlock. If your parent wants multiple children involved, consider naming one primary executor with specific tasks delegated to others rather than equal authority over every decision.

The One Step Families Always Skip

Writing the will is step one. Storing and communicating it is step two — and it's where most families fail.

A will that no one can find is nearly useless. Courts regularly see situations where a will existed but couldn't be located after death, forcing the estate through intestacy anyway.

Your parent's will should be:

• Kept in a known, accessible location — a fireproof home safe, or with their estate attorney
• NOT kept in a safe deposit box (access to a deceased person's safe deposit box requires a court order in most states)
• Referenced in their end-of-life planning documents with the exact physical location noted
• Known to the executor and at least one other trusted person

The executor should also know where to find the will — naming someone executor and not telling them, or not telling them where the document is, defeats the purpose.

Getting Started

The most common reason aging parents don't have a will is not refusal — it's inertia. The conversation feels morbid, the process feels complicated, and there's always something more pressing.

If you're helping a parent get their affairs in order, the will is one piece of a larger picture that includes powers of attorney, healthcare directives, beneficiary designations, and a clear record of what they own and where it's held. Tackling all of this at once is overwhelming. Breaking it into steps makes it manageable.

Our End-of-Life Planner workbook includes a document locator worksheet, a financial overview section, and a checklist of all the documents your parent needs — including the will — so nothing gets missed. It's designed to be worked through together as a family over a few sessions, not all at once. Find it at eldersafetyhub.com/end-of-life-planner/.