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Five Mistakes That Make a Will Useless

By Jason Su · Updated September 18, 2026

Most people who write a will do the hard part right — they decide what they want and they get it written down. The failures almost always happen after that: the document cannot be found, it was signed incorrectly, it is a decade out of date, or it tries to do something a will cannot do. Each of these is common, and each one can leave your family with paperwork that does not accomplish what you intended.

1. Nobody can find it

This is the most common failure of all, and the most avoidable.

A will that exists but cannot be found causes the same practical problems as a will that was never written. Your family may not be able to follow it, and the process becomes slower, more expensive, and more contentious.

The three ways it happens:

• It is in a bank safe deposit box and nobody knows, or access is restricted at exactly the wrong moment
• It is with an attorney whose firm has since closed, merged, or retired the partner who had it
• It is in the house somewhere, in an unmarked folder, and the people looking are grieving and searching in a hurry

The fix takes ten minutes: put the original somewhere reachable and fireproof, then tell someone exactly where it is. See where to keep your will.

2. It was signed incorrectly

Signing requirements are not a formality. States commonly require witnesses, sometimes a notary, and the requirements can differ depending on the type of document and where you are.

What goes wrong:

• Not enough witnesses
• A witness who is also a beneficiary — a problem in many states
• A signature in the wrong place, or an initialled page that was not initialled
• A do-it-yourself document that was never signed at all, only printed

This is one of the few pieces of paperwork where a professional’s involvement is worth the cost — not because the wording is hard, but because you will not be around to fix the signing. A will that fails on a technical point may fail entirely, and nobody discovers it until it matters.

3. It is out of date

Circumstances change faster than wills do. The events that most often invalidate your intentions:

• Marriage or a new partner — and in many states, a spouse has rights regardless of what the will says
• Divorce — an ex-partner may still be named, or still be the person appointed, depending on your state
• A birth, an adoption, or a death in the family
• Moving to another state, where different rules may apply to a document signed elsewhere
• A significant change in what you own — a house bought, a business started

The pattern is that people write a will once, put it in a drawer, and never look at it again. It becomes confidently wrong.

Set a reminder. Reread it once a year, or after any of the events above.

4. It names the wrong person for the job

The person who handles your estate should be someone who will actually do it — not necessarily your closest relative, and not necessarily the oldest child.

• Someone willing. Ask them. It is a real job, involving phone calls, paperwork, and months of follow-up.
• Someone able. Health, distance, and temperament all matter.
• Someone available. If they are likely to be grieving hard, or already overwhelmed, think about whether a co-appointment helps.
• Someone trustworthy with the details, because they will see the whole picture.

Name a backup as well. If your first choice cannot serve, the absence of a backup sends the decision to a court.

5. It tries to do something a will cannot do

Wills are powerful but not unlimited. Three common attempts that fail:

Leaving passwords. Many states treat a will as a public document once filed. A list of logins in a public record is worse than no list. Name where your logins are stored, never what they are. See what is a digital executor for what actually grants access.

Overriding a beneficiary designation. If a life insurance policy or a retirement account names a beneficiary, that form generally decides who receives it — no matter what the will says. This is why an outdated beneficiary form can quietly cancel out a carefully written will.

Overriding how property is titled. A jointly owned account or a home held with right of survivorship usually passes to the other owner automatically. The will does not get to redirect it.

The fix is not to write a better will. It is to check the beneficiary forms and the ownership records, because that is where a large share of what people own actually gets decided. See what is probate for which assets pass outside the process.

The pattern behind all five

Every one of these failures happens outside the document. The wording is usually fine. What goes wrong is where it is kept, how it was signed, whether it was reviewed, and whether it lines up with the forms and titles recorded somewhere else.

So the useful habits are not about drafting:

• Put the original somewhere findable, and tell someone
• Have the signing checked by a professional
• Reread it once a year
• Check your beneficiary forms whenever you check the will
• Tell the person you named that you named them

What not to do

• Do not rely on a copy. In most cases the original is what matters. Keep a copy for reading, but the original is the document.
• Do not write it once and forget it. An out-of-date will is worse than none, because everyone assumes it is current.
• Do not assume your will covers everything. Beneficiary designations and ownership titles often override it.
• Do not name someone without asking. Being appointed is a responsibility, and people are allowed to decline.
• Do not use a template you cannot verify. Requirements differ by state, and a document that is valid in one place may not be in another.
• Do not keep it secret from everyone. The people who will need to act should know that it exists and roughly what it says.

Frequently asked

Can a will be invalid just because it cannot be found?

It creates serious practical problems, and the outcome depends on your state’s rules. Some states have procedures for using a copy in limited circumstances. Talk to an attorney rather than assuming either way.

Do I need a lawyer to write a will?

Not always, especially if your situation is simple. But signing requirements are strict, and mistakes there can invalidate the whole document. Ask an attorney what it would cost to review what you have written — the answer is often less than people expect.

How often should I review my will?

Once a year is a reasonable habit, and immediately after any of these: marriage, divorce, a birth or death in the family, moving state, or a significant change in what you own.

What happens to my will if I move to another state?

Many states recognise documents that were validly executed elsewhere, but the rules differ and the wording may not fit your new state’s law. Have it reviewed after a move.

Does a will cover my retirement accounts and life insurance?

Generally not — those pass according to the beneficiary designation on the account or policy. Check those forms, and update them when your circumstances change.

What if my family cannot find the will?

The estate process still has to happen, and state law applies if there is no will to follow. That is usually slower, more expensive, and more likely to cause disagreement. This is the outcome that a ten-minute conversation prevents.

Next step

Two actions, both short. Find your will and check that one other person knows where it is. Then check your beneficiary forms on your retirement accounts and insurance policies — they very often decide more than the will does.

For the storage question, see where to keep your will, and record the location using the free Checklist Builder.

This is general information, not legal advice. We are not a law firm and we do not draft legal documents. Signing requirements, beneficiary rules, and probate procedures differ by state and change over time — please talk with a licensed attorney in your state about your situation.