How to write a will: a plain-English guide for every adult

Most people intend to write a will someday. They know it matters. They just keep putting it off — because it feels complicated, or legalistic, or like something that only becomes urgent when you're old. The reality is that writing a will is one of the most straightforward legal tasks most adults will ever do, and the cost of not doing it falls entirely on the people you love.

This guide walks through what a valid will requires, how to write one yourself, when an attorney is genuinely worth the cost, and how to store and maintain your will so it holds up when it counts.

Why everyone needs a will

A will is not just about distributing assets. It is also the place where you name the person who will handle your estate (your executor), and — if you have minor children — the person who will raise them if you cannot (your guardian designation).

Without a valid will, your state's intestacy laws decide who gets what. Those laws follow a rigid formula based on family relationships, and the results often don't match what most people actually want. A live-in partner of ten years receives nothing under most state intestacy rules. A child from a previous relationship may receive a different share than you intend. A sibling you haven't spoken to in years may inherit alongside the sibling you're close to.

Dying without a will also forces your family through a more complicated and expensive court process — and removes any say you might have had over who handles it.

What a will can and cannot do

A will can:

• Direct how your property is distributed after your death
• Name an executor (the person who manages your estate)
• Designate a guardian for minor children
• Express wishes about specific personal property (furniture, heirlooms, jewelry)
• Name a backup executor and backup beneficiaries

A will cannot:

• Override beneficiary designations on retirement accounts, life insurance, or payable-on-death accounts — those designations supersede your will entirely
• Transfer assets held in a living trust — those follow the trust documents
• Control jointly held property with right of survivorship — that passes automatically to the surviving owner
• Bind your executor to unreasonable or illegal instructions

Understanding what falls outside your will is just as important as knowing what goes in it. The estate planning checklist covers all categories — including the beneficiary designations that operate independently of your will.

The 5 required elements of a valid will

State laws vary, but virtually every state requires the same core elements for a will to be legally valid:

1. Testamentary capacity

You must be a legal adult (18 or older in most states) and of "sound mind" when you sign — meaning you understand the nature and extent of your property, who your natural heirs are, what a will is, and that you are making one.

2. Written form

A will must be in writing. Oral wills are recognized only in extremely limited circumstances (typically for members of the military in active service) and are not valid for most people.

3. Beneficiary designations

Your will must clearly identify who receives your property. Be specific — "my children" is less clear than naming each child individually. Ambiguous language creates room for disputes.

4. Named executor

Name the person who will carry out your wishes, pay your debts, and distribute your estate. Name a backup in case your first choice cannot serve. Tell your executor where your will is stored — a will no one can find is nearly useless.

5. Signatures and witnesses

You must sign your will. Almost every state requires at least two adult witnesses who are not beneficiaries under the will — and who watch you sign it. Beneficiaries who serve as witnesses can create legal complications in many states, potentially invalidating their own bequest.

Some states also require or recommend notarization, especially for a self-proving affidavit (explained below).

DIY options vs. hiring an attorney

When a DIY will is reasonable

If your situation is relatively straightforward — you have a spouse, children, and modest assets, and you want a basic distribution plan — an online will service or state-specific will template can work well. Services like Nolo, Trust & Will, and LegalZoom walk you through the process step by step and produce a document formatted to your state's requirements.

A DIY will typically costs between $20 and $200. The key is to use a service or form specific to your state, read carefully, and execute it correctly — signing in front of the required witnesses.

When to hire an attorney

An estate planning attorney is worth the cost when:

• You have a blended family, significant assets, or complex family dynamics
• You own property in more than one state
• You want to minimize estate taxes
• You want to provide for a family member with a disability without affecting their government benefits
• You have a business interest to address
• You have concerns about potential disputes among heirs
• You want a revocable living trust in addition to a will

Attorney fees for a basic will typically range from $300 to $1,000; comprehensive estate plans with trusts cost more. For complex situations, that cost is almost always worth it.

State-specific requirements overview

Every state has its own will statute with specific rules about execution — witnesses, notarization, age requirements, and which types of wills are recognized. A few things to know:

• Louisiana follows a civil law tradition and has unique will formality requirements — an attorney is strongly recommended.
• Community property states (California, Texas, Arizona, Nevada, Washington, Idaho, Wisconsin, New Mexico, and Alaska by election) have different rules about what property a spouse can leave in a will.
• Some states allow electronic wills (signed and witnessed digitally), while others do not.

Using a state-specific template or working with a local attorney is the safest way to ensure your will meets your state's exact requirements.

The self-proving affidavit

A self-proving affidavit is a notarized statement signed by you and your witnesses at the time you execute the will. It attests that all the signing formalities were properly observed.

When a will has a self-proving affidavit attached, the probate court typically does not need to track down your witnesses to verify the will's validity — they can accept it on its face. This simplifies and speeds up probate. Most attorneys include this automatically; if you are writing your own will, check whether your state recognizes self-proving affidavits and follow the prescribed form.

Holographic wills

A holographic will is one written entirely in the testator's own handwriting and signed — with no witnesses required in states that recognize them. About half of U.S. states allow holographic wills.

They are sometimes used in emergencies or when no other option is available. The problem: courts scrutinize holographic wills carefully because they frequently contain ambiguous language, are difficult to date, and invite questions about authenticity and capacity. If you have time to plan, a properly witnessed typed will is far more reliable.

Common mistakes that invalidate a will

Even a thoughtfully written will can be challenged or rejected if certain formalities aren't followed:

• Wrong number of witnesses — using only one witness when two are required
• Interested witnesses — having a beneficiary serve as a witness (may void their bequest or the entire will, depending on the state)
• Lack of capacity evidence — if capacity is later questioned and there is no documentation, it can be difficult to defend
• Outdated will after major life changes — a will written before a divorce, remarriage, or birth of a child may not reflect your current wishes, and some states have automatic revocation rules (a divorce may automatically revoke gifts to an ex-spouse)
• Improper amendments — crossing out sections by hand or writing additions in the margins of a signed will can create serious problems; amendments require a separate, properly executed codicil or a new will
• No updated beneficiaries — your will may be valid but still functionally defeated if your retirement accounts and life insurance still name your ex-spouse as beneficiary

Storing and updating your will

A will that cannot be found is nearly as useless as no will at all. Store the original in a fireproof location — a home safe, a bank safe deposit box, or with your attorney. Tell your executor exactly where it is.

Keep a copy in your document vault or with other important papers, and note where the original is stored. The end-of-life documents checklist covers all the documents your family will need access to, including your will.

Review your will after any major life event: marriage, divorce, death of a beneficiary, birth of a child, significant change in assets, or a move to a new state. There is no rule against having a new will prepared — a later, validly executed will generally supersedes an earlier one.

Frequently asked questions

Do I need a lawyer to write a valid will?

In most states, you do not. A properly signed and witnessed will that meets your state's formalities is legally valid regardless of whether an attorney drafted it. That said, an attorney adds value when your situation is complex — blended families, significant assets, business interests, or properties in multiple states. For a straightforward situation, a state-specific online service can produce a valid will at low cost.

What happens if I die without a will?

Your estate goes through intestate succession — your state's default distribution formula. Assets are divided among your closest relatives according to a statutory hierarchy. This process typically takes longer than probate with a will, and the outcome may not match your wishes. If you have minor children, the court appoints a guardian without any guidance from you.

Can I write a will by hand?

About half of states recognize "holographic wills" — handwritten and signed by the testator, with no witnesses required. But courts apply extra scrutiny to them, and ambiguous language or dating issues can create problems. A typed, witnessed will is more reliable whenever you have the option.

How often should I update my will?

Review your will after any major life event — marriage, divorce, birth or adoption of a child, death of a beneficiary or executor, significant change in assets, or a move to another state. Even without major changes, a review every three to five years is a reasonable practice to make sure your will still reflects your wishes and that your named executor and guardians are still the right people.

Does a will go through probate?

Yes. A will is a set of instructions for the probate court. Having a valid will makes probate simpler and more predictable, but it does not eliminate it. Assets that pass through beneficiary designations, joint ownership, or trusts bypass probate entirely — a will does not affect those. For more on how probate works and when it can be avoided, see what probate is and how it works.

What Passings Can Help With

Passings includes will-related tasks in its guided planning checklist — from deciding whether to draft your own will or hire an attorney, to storing your final document in the secure vault. Once your will is complete, the vault gives your executor a reliable place to find it without having to search through boxes or file cabinets at the worst possible time.

This article provides general information and is not legal advice. Will requirements vary by state. Consult an estate planning attorney in your state for advice specific to your situation.

Disclaimer — For informational purposes only

This article is compiled from publicly available resources and is provided solely for general informational purposes. It does not constitute and should not be relied upon as legal, financial, tax, insurance, medical, psychological, or other professional advice. Passings is a planning and organizational platform, not a licensed advisory service, and no attorney-client, financial advisor-client, or other professional relationship is created by reading this content.

Laws, regulations, financial products, and professional standards vary by state and change over time. Passings makes no representations or warranties — express or implied — regarding the accuracy, completeness, timeliness, or suitability of any information contained herein. To the fullest extent permitted by applicable law, Passings disclaims all liability for any loss, damage, or harm arising from your use of or reliance on this content. Always consult a qualified, licensed professional — including an attorney, financial advisor, CPA, or licensed counselor — before making decisions specific to your situation.

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