A death will is the everyday name for a Last Will and Testament, the signed legal document that spells out who gets your property, who manages your affairs, and who raises your minor children after you die. Every state recognizes it, and for most people it is the single most important legal document they will ever sign.
What a Will Actually Does
A will does three things no other document does in quite the same way.
It directs where your property goes. Your house, your savings, your car, your jewelry, anything you own outright. You can leave specific items to specific people, divide everything by percentages, or send a share to charity.
It names an executor. That is the person who steps in after your death to collect your assets, pay your debts and taxes, and distribute what is left according to your instructions. The executor also files your final income tax return and, if the estate is large enough, an estate tax return.1Internal Revenue Service. Responsibilities of an Estate Administrator
And it names a guardian for any minor children. This is the function that catches parents off guard. If both parents die and the will does not name someone, a judge chooses the guardian from whatever information is available. That judge has never met your family.
What Happens If You Die Without One
When someone dies without a valid will, every state applies a default set of rules called intestacy laws. The hierarchy is rigid: a surviving spouse and children come first, then parents, siblings, and increasingly distant relatives. A spouse with children who are also the spouse’s children typically takes everything. When children from a prior relationship exist, the spouse gets a portion and the rest is split among the children. If no relatives can be found at all, the property goes to the state.
The problem is not only who inherits. Intestacy almost always means a longer, more expensive probate, because the court has to identify heirs and supervise distributions the deceased never planned. Close friends, stepchildren, unmarried partners, and charities receive nothing under intestacy, no matter how close the relationship. A will is the only way to override those defaults.
Making a Will Legally Valid
Almost every state requires the testator (the person making the will) to be at least eighteen. A few states lower that for people who are married or in the military, but eighteen is standard. The testator must also have testamentary capacity: you have to understand that you are making a will, have a general sense of what you own, and know who your close family members are. You must be acting voluntarily, without pressure or manipulation.
The will has to be written. Oral wills are invalid or sharply restricted almost everywhere. The document must show clear intent to take effect at death, and it must be signed by the testator. The Uniform Probate Code, which many states follow in whole or in part, requires two witnesses who watch you sign or hear you acknowledge your signature, and who then sign the document themselves. Most estate planning attorneys insist the witnesses be disinterested, meaning they inherit nothing under the will, because an interested witness can trigger complications or partial invalidation in some states.
Handwritten (Holographic) Wills
About half the states recognize holographic wills, which are handwritten and unwitnessed. The requirements vary. Some states demand the entire document be in your handwriting; others only require the key provisions. Several states also require a date. A holographic will valid where you wrote it can be challenged if you move somewhere that does not recognize them, and these wills get contested more often because no witness can testify they watched you sign. Better than nothing in an emergency, but weaker than a formally witnessed will.
Self-Proving Affidavits
A self-proving affidavit is a sworn statement attached to the will and signed by the testator and witnesses in front of a notary. Without it, the probate court may have to track down your witnesses after your death to confirm the will is genuine. With it, the court can accept the will on its face. Notary fees are modest, and the few minutes it takes to complete can prevent weeks of probate delay.
Assets a Will Does Not Control
Here is where careful planners trip. Your will does not govern everything you own. Some assets pass directly to a named beneficiary regardless of what the will says, and that beneficiary designation wins every time.
- Retirement accounts such as 401(k)s, IRAs, 403(b)s, and pensions, when they have a named beneficiary.
- Life insurance proceeds, which go to the beneficiary listed on the policy.
- Payable-on-death bank accounts and transfer-on-death brokerage accounts, which pass on presentation of a death certificate.
- Property held in joint tenancy with right of survivorship, which belongs automatically to the surviving co-owner.
Outdated beneficiary forms can undo a will entirely. If your will leaves everything to your current spouse but your 401(k) still names your ex-spouse, the ex-spouse gets the 401(k).2Justia. Transferring Assets With Designated Beneficiaries and the Legal Process Community property held with right of survivorship passes to the surviving spouse even if a conflicting will provision says otherwise.3Justia. Joint Ownership With Right of Survivorship and Legally Transferring Property There is a quieter risk too: if most of your assets pass by designation, the estate may have no cash left to cover final expenses, medical bills, or taxes. The executor still owes those debts. Coordinating the will with your beneficiary designations matters as much as drafting the will itself.
What to Gather Before You Draft
Pull together a full inventory of what you own: real estate, bank and investment accounts, retirement accounts, vehicles, valuable personal property, business interests. Describe each clearly enough that your executor can find it without guessing.
Collect the full legal names and current addresses of every beneficiary. Do not include Social Security numbers. Wills become part of the public court record during probate, and listing SSNs creates identity theft exposure for everyone named.
Choose a primary executor and a backup. Pick someone organized, trustworthy, and willing to handle paperwork and deadlines. If you have minor children, do the same for the guardian: a first choice and an alternate. If the first-choice guardian has moved overseas or developed health problems by the time it matters, the backup keeps the decision out of a judge’s hands.
Updating or Revoking a Will
A will is not a set-it-and-forget-it document. Marriage, divorce, the birth of a child, or a significant change in assets should prompt a review. You have three options.
- Write a new will. The cleanest route. Include a statement revoking all prior wills, and execute it with the same formalities as the original.
- Add a codicil. A codicil is a formal amendment to the existing will, executed with the same witness requirements. Fine for small changes, but multiple codicils can create confusion.
- Destroy the original. Shredding, burning, or tearing the will with intent to revoke is legally effective in most states. Simply crossing out lines or writing in the margins may not be enough.
The most common mistake is updating a will but forgetting the beneficiary designations on retirement accounts, life insurance, and POD accounts. Those designations override the will, so both have to stay in sync.
What Happens in Probate
After death, the original will is filed with the local probate court. The executor submits the will with a death certificate and a petition asking the court to accept the document and authorize the executor to act. The court reviews execution, examines signatures and any self-proving affidavit, and may notify potential heirs so they can object.
Once satisfied, the court issues Letters Testamentary, which give the executor legal authority to access bank accounts, transfer property titles, pay creditors, and distribute assets.1Internal Revenue Service. Responsibilities of an Estate Administrator Without those letters, financial institutions will not release funds, and buyers will not accept a deed signed by the executor.
Timelines vary widely. Simple, uncontested estates can finish in a few months. Complex or contested ones often take a year or two. Filing fees to open probate range from around $50 to over $1,000, depending on estate value and jurisdiction, with additional costs for certified copies, legal notices, and attorney fees. Executors are entitled to compensation; some states set the fee as a percentage of the estate, commonly two to four percent, while others leave the amount to the court as “reasonable.”
Grounds for Contesting a Will
Anyone with legal standing, usually a family member or someone named in a prior will, can challenge a will. Contests are less common than people fear, but they are expensive and stressful when they happen. The usual grounds:
- Lack of testamentary capacity. The testator did not understand what they were signing, did not grasp what they owned, or could not identify close family. This comes up most often with elderly testators or those with dementia.
- Undue influence. Someone in a position of trust, often a caregiver or a new partner, pressured the testator into changes that favored the influencer over natural heirs.
- Improper execution. The will was not signed, lacked the required witnesses, or was witnessed by beneficiaries.
- Fraud or forgery. The testator was tricked into signing something they did not understand, or the document was altered afterward.
The best defense is a properly executed will with a self-proving affidavit, signed when the testator is clearly competent. Some attorneys recommend a contemporaneous letter from the testator’s physician confirming mental capacity when the testator is elderly or has a condition that could later be used against the will.
Taxes and the Stepped-Up Basis
Most estates owe no federal estate tax. Under the One, Big, Beautiful Bill Act signed into law in 2025, the federal estate tax exemption for 2026 is $15,000,000 per person.4Internal Revenue Service. What’s New — Estate and Gift Tax Married couples can effectively shelter up to $30,000,000 combined through portability of the unused exemption. Only value above the exemption is taxed, and the top federal rate is 40 percent. A handful of states impose their own estate or inheritance taxes with lower thresholds, so estates well under the federal exemption may still owe state tax.
Inheriting through a will carries a significant tax benefit: a stepped-up basis. When you inherit an asset, your tax basis is its fair market value on the date of death, not what the deceased originally paid.5Office of the Law Revision Counsel. 26 US Code 1014 – Basis of Property Acquired From a Decedent If your parent bought a house for $100,000 and it was worth $500,000 at death, your basis is $500,000. Sell it the next month for $500,000 and you owe no capital gains tax. The rule applies to property inherited through a will and to most property passing by intestacy. It does not apply to lifetime gifts, which carry over the giver’s original basis.
Will or Living Trust
People often ask whether they need a trust instead of a will. A revocable living trust is a separate legal entity you create during your lifetime, transfer your assets into, and control until you die or become incapacitated. At death, the trust’s assets pass to your beneficiaries without probate, which means faster distribution, lower court costs, and privacy, since trust documents do not become public records the way wills do.
A trust also handles incapacity. If you lose the ability to manage your finances, a successor trustee can step in right away. A will has no legal effect while you are alive, so it offers no incapacity protection. Trusts cost more to set up and require you to actually retitle assets into the trust, an administrative step many people neglect. And a trust cannot name a guardian for minor children. For that, you still need a will.
For most people with straightforward estates, a will is enough and far simpler. Trusts make more sense for larger or more complex estates, for owners of real estate in multiple states, and for those who place a high value on keeping financial details out of court records. Many plans use both: a trust for the major assets and a “pour-over” will that catches anything not transferred into the trust during life.