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Estate planning & giving · Financial term

Will

Also called Last will and testament · Last will · Testament · Writing a will

What is a will?

A will, formally a last will and testament, is a signed legal document that directs who receives your property after you die, names an executor to settle your estate and can nominate a guardian for minor children. It governs only property that passes through probate, so retirement accounts, life insurance and jointly owned assets usually follow their own beneficiary or ownership rules instead.

9 min readWorked example5 common questions

What a will does

A will does four main jobs. It names an executor, called a personal representative in many states, who collects your assets, pays debts and taxes and hands out what is left. It nominates a guardian to raise minor children, often the most important reason for a young family to have one. It leaves specific items or sums to specific people or charities. And a residuary clause sends everything not otherwise mentioned to whomever you choose, catching assets you forgot or acquired later.

A will can also set up a testamentary Trust, for example to hold a child’s inheritance until a set age, and a pour-over will sends any stray assets into an existing revocable living trust.

A will has no effect until death. Until then you can change it with an amendment called a codicil, replace it or revoke it, as long as you still have the mental capacity to do so. It is only one piece of estate planning: it does nothing if you become incapacitated, which is the job of a power of attorney.

What a will does not control

A will governs only the probate estate: property in your sole name with no other mechanism to transfer it. Much of a modern estate passes outside the will and outside Probate through the channels below, and each of them wins if it disagrees with the will.

A will cannot fix an out-of-date beneficiary form, even after a divorce. In Egelhoff v. Egelhoff (2001), the Supreme Court held that federal law governing employer benefit plans overrode a Washington statute that revokes an ex-spouse’s designation at divorce, so the former wife still named on the forms kept the pension and life insurance benefits. Spouses also have ownership and inheritance rights a will cannot take away, which vary by state.

  • Retirement accounts such as a 401(k) or IRA, life insurance and annuities go to the person named on the beneficiary designation.
  • Bank and brokerage accounts with a payable-on-death or transfer-on-death registration go to the named beneficiary.
  • Property held in joint tenancy with right of survivorship goes to the surviving owner.
  • Assets titled in a trust follow the trust document.

How to make a valid will

Each state sets its own rules for signing a will, called execution formalities, and a will that misses them can be thrown out. Many states also accept a holographic will, whose signature and material provisions are in your own handwriting, even without witnesses; others do not, so a handwritten note valid in one state can fail in the next. A growing number of states allow electronic wills. A will validly signed in one state is generally honored after a move, but check it against the new state’s rules on spouses’ rights and property.

You do not need a lawyer for a will to be valid; a do-it-yourself will that meets the rules is enforceable. An attorney earns the fee on what tends to go wrong: a missed formality, an unclear gift or a family likely to contest.

In states that follow the Uniform Probate Code, and in most others, a standard witnessed will needs the following. A notary usually is not one of the requirements.

  • You are at least 18 and of sound mind.
  • The will is in writing and signed by you, or by someone else in your presence at your direction.
  • At least two people witness the signing and sign themselves; using witnesses who inherit nothing avoids challenges.

What happens if you die without a will

Dying without a valid will is called dying intestate. Your probate property then passes under your state’s intestate succession law, a default will written by the legislature. A surviving spouse and children come first, followed by other close relatives such as parents and siblings. If no relatives qualify, the property can escheat, or pass, to the state.

The defaults rarely match what people would have chosen. Unmarried partners, close friends and charities receive nothing, and stepchildren usually receive nothing unless adopted. In many states a surviving spouse shares the estate with children rather than inheriting everything. A court appoints an administrator to settle the estate, and if both parents of a minor child have died, a court chooses the guardian without your input.

Intestacy does not affect accounts with a living named beneficiary, which still pass by their forms. It also does not avoid probate: the estate goes through the same court process, often with extra steps, such as a bond for the administrator.

Common will mistakes

Most problems with wills come from what happens after signing rather than from the wording. A will drafted when the children were infants may name a guardian who is now too old, an executor who has since died or assets long since sold, while newer accounts carry beneficiary forms that were never compared with it. Rereading the will after each major life event, and checking it against every account, catches most of these.

  • Assuming the will overrides old beneficiary forms on retirement accounts and life insurance. It does not.
  • Not updating after a divorce and relying on state law to cancel an ex-spouse’s gifts, which does not reach employer plans.
  • Leaving out a residuary clause or contingent beneficiaries, so part of the estate falls into intestacy.
  • Leaving money outright to a minor, which can require a court-supervised guardianship of the money until the child is an adult.
  • Signing with too few witnesses, or with a beneficiary as a witness.
  • Keeping the only original where no one can find or reach it.

Illustrative numbers

How much of a $1.6 million estate a will actually controls

401(k) naming a spouse as beneficiary$700,000, passes by beneficiary form

Home held in joint tenancy with right of survivorship$550,000, passes to the surviving owner

Life insurance policy$250,000, passes by beneficiary form

Brokerage account with a TOD registration$80,000, passes to the TOD beneficiary

Checking account, car and belongings in one name$20,000, passes under the will

Share of the estate governed by the will$20,000 of $1,600,000, or 1.25%

The will controls barely 1% of this estate, yet it still matters: it names the executor and guardian, and it catches any account whose named beneficiary has died, which can then fall into the probate estate. Checking every beneficiary form is as important as drafting the will itself.

At a glance

Kinds of wills and similar documents

TypeWhat it isKey point
Witnessed (attested) willTyped or printed, signed by you and, in most states, two witnessesThe standard form; Louisiana also requires a notary
Holographic willSignature and key provisions in your own handwritingValid without witnesses only where state law recognizes it
Pour-over willSends anything left outside your living trust into the trustAssets it catches still go through probate
Mirror willsTwo spouses’ separate wills with matching termsEach spouse can generally change theirs later
Electronic willSigned and witnessed electronicallyValid only in states whose laws authorize it
Living willNot a will: states your wishes for end-of-life medical careWorks while you are alive, not at death

Put it in your plan

Will in MoneyWhatIf

MoneyWhatIf does not draft a will, and its Estate page does not divide an estate the way a will would. It reads the final year of your projection as one estate, sorts it into six categories (real estate, tax-deferred, Roth, taxable brokerage, cash accounts and cash the plan saved) and shows a card for each on how that money may pass. A legacy lens divides the estimated net evenly among one to four beneficiaries, as an illustration rather than an allocation.

Open your forecast

Common questions

Will FAQs

Does a will need to be notarized?

In most states, no. A will is usually valid if it is in writing, signed by you and signed by the required witnesses, typically two. A notary is used for an optional self-proving affidavit, which the witnesses sign under oath so the probate court can accept the will without contacting them later. That saves time, so many attorneys include one.

Does a will avoid probate?

No. A will is the set of instructions the probate court follows, so property passing under it goes through probate. To keep assets out of court, people use beneficiary designations, transfer-on-death registrations, joint ownership with right of survivorship or a revocable living trust, and keep a will as a backstop for anything those miss.

Can I leave my spouse out of my will?

Usually not entirely. In most states that do not use community property, a surviving spouse can claim an elective share of the estate regardless of the will. In the nine community property states, each spouse already owns half of the community property, so a will can dispose of only the writer’s own half. Federal law also gives spouses rights to most 401(k) balances unless they consent in writing to another beneficiary.

Can a will be contested?

Yes, but only on limited grounds and usually only by someone who would inherit more if the will failed, such as a child left out or a beneficiary of an earlier will. The common grounds are improper signing or witnessing, lack of mental capacity at signing, undue influence and fraud. State law sets a deadline to object once the will is offered for probate, and proper witnesses and a self-proving affidavit make a challenge harder to win.

What is the difference between a will and a living trust?

A will takes effect only at death and works through probate, which is public and supervised by a court. A revocable living trust holds assets during your life, lets a successor trustee manage them if you become incapacitated and distributes them at death without probate. A trust costs more to set up and works only for assets actually retitled into it, which is why people with a trust still keep a pour-over will.