A last will and testament is the legal document that tells a probate court who should receive your property after you die, who should carry out those instructions, and, if you have young children, who should raise them. Sign one correctly and the court follows your directions. Skip it and your state’s default rules take over, often with results you wouldn’t have chosen. The document itself is only part of the job: making it work also means coordinating it with the accounts and titles that pass outside of probate, and keeping it current as your life changes.
What the Document Actually Does
A will directs the transfer of property you own at death. That covers real estate, personal belongings, bank accounts in your sole name, and anything else titled to you alone. You name beneficiaries, you name someone to run the process, and you cover the gaps so nothing is left floating.
A few older terms still turn up in wills and in articles about them. A “devise” is a gift of real property. A “bequest” is a gift of personal property. A “legacy” usually means a gift of money. Attorneys and courts use these words loosely today, and modern statutes treat the will as a single tool for transferring any kind of property. The person who signs the will is the testator. The person who carries it out is the executor, or in some states the personal representative, acting in a fiduciary capacity to settle the estate.1American Bar Association. Guidelines for Individual Executors and Trustees Someone who dies without a valid will dies intestate, and the court appoints an administrator to distribute the estate under default rules.
Who Can Legally Sign One
Two baseline requirements apply everywhere. You have to be old enough, which in most states means 18. And you have to be of sound mind when you sign.
Sound mind is a lower bar than people often assume. Courts generally look at whether you understood what you owned, who your close relatives were, and how signing the will would affect who gets what. Mild memory issues or early-stage dementia do not automatically disqualify you, especially if you sign on a clear day. Capacity disputes usually surface after death, when a relative argues the testator didn’t understand the document. Challenges are easier to bring when the will was signed late in life, shortly after a diagnosis, or when a new will dramatically changed the distribution. If you’re worried about that possibility, a doctor’s evaluation close to the signing date creates useful evidence.
Courts also set aside wills signed under undue influence, meaning someone pressured or manipulated the testator into changes that benefit the influencer at the expense of natural heirs. Pressure from a caregiver or a new partner late in life is a common fact pattern.
What Belongs Inside
A will needs to identify who gets what, name the people responsible for carrying out your wishes, and cover the gaps. The basics below apply even to simple estates.
Beneficiaries and Specific Gifts
Use the full legal names of every person or organization you want to receive something. Vague descriptions like “my best friend” or “my favorite charity” invite disputes. For specific items, be precise enough that the executor can identify the asset without guessing. “My engagement ring with the oval diamond” is better than “my ring.” For financial accounts, name the institution and the type of account, but keep exact account numbers in a separate document since they change.
The Residuary Clause
No matter how carefully you list individual gifts, you’ll own something at death that isn’t specifically mentioned. A residuary clause catches everything left over after debts, taxes, and specific gifts have been handled, and names a residuary beneficiary to receive the remainder. Without it, unlisted property can pass under intestacy rules instead of going to the people you’d prefer. It is the safety net for the whole plan.
Naming an Executor
Your executor files the will with the probate court, notifies creditors, inventories assets, pays debts and taxes, and distributes what’s left to beneficiaries.1American Bar Association. Guidelines for Individual Executors and Trustees Pick someone organized, trustworthy, and willing to take on a months-long process. Name an alternate in case your first choice can’t serve.
Guardians for Minor Children
If you have children under 18, your will is where you name who should raise them if both parents die. Include the guardian’s full legal name and an alternate. Courts give heavy weight to the parent’s written choice, though a judge can override it if the named guardian would clearly harm the child’s welfare. Skip this and a court picks for you.
Digital Assets
Online accounts, cryptocurrency, domain names, and digital media libraries are easy to overlook and can hold real value. Nearly every state has adopted legislation based on the Revised Uniform Fiduciary Access to Digital Assets Act, which gives executors legal authority to manage digital property. Do not put passwords or login credentials directly in the will, because wills become public documents during probate. Keep a separate digital asset inventory with access instructions, store it securely, and let the will reference it and authorize your executor to manage those accounts.
Signing It So It Holds Up
Filling out the form doesn’t make it legal. The signing ceremony is what turns a written document into an enforceable will, and cutting corners here is the most common reason wills get thrown out.
Execution Requirements
Under the Uniform Probate Code and most state laws, a valid will must be in writing, signed by the testator (or by someone else at the testator’s direction and in their presence), and witnessed by at least two people who each sign within a reasonable time after watching the testator sign or acknowledge the will. One correction to a common misconception: under the UPC, a witness who is also a beneficiary does not invalidate the will. Some older state laws penalize interested witnesses by voiding their gift, but the modern trend is to allow it. Even so, using disinterested witnesses is still the safer practice.
No magic words are required. Courts look for testamentary intent, meaning the document should make clear you’re directing how your property passes after your death. Plain language like “I give” or “I leave” works.
The Self-Proving Affidavit
A self-proving affidavit is a notarized statement attached to the will where the witnesses swear under oath that they watched you sign voluntarily and with apparent capacity. Nearly every state recognizes self-proving wills, with only a handful of exceptions.2Legal Information Institute. Self-Proving Will The payoff shows up during probate. Without the affidavit, the court may need to track down your witnesses and have them testify that the signing was legitimate, which can be hard or impossible years later. Notary fees are modest, with most states capping them somewhere between $0.50 and $15 per signature.3National Notary Association. 2026 Notary Fees By State It is one of the cheapest things you can do to protect the validity of the document.
Holographic Wills
A holographic will is written entirely, or in its material portions, in the testator’s own handwriting and signed by the testator, without any witnesses. About half of states recognize them, and the specific requirements vary.4Legal Information Institute. Holographic Will Some states require every word to be handwritten; others only require that the key provisions and the signature be handwritten. A few states, like New York, only recognize holographic wills made by members of the armed forces during active service or mariners at sea.
Holographic wills are risky even where they’re legal. Without witnesses or a notarized affidavit, proving the document is authentic becomes harder, and handwriting disputes, ambiguous language, and questions about intent all come up more often. If you have time and access to two willing adults, a witnessed will is the safer choice.
Assets Your Will Doesn’t Control
A significant portion of most people’s wealth never passes through the will at all. These assets transfer automatically to whoever is named on the account or title, regardless of what the will says. If your will leaves everything to your children but your retirement account still names your ex-spouse as beneficiary, the ex-spouse gets the retirement money. The will loses that fight every time.
Common assets that bypass the will include:
- Retirement accounts such as IRAs and 401(k)s, which pass to whoever is listed on the beneficiary designation form.
- Life insurance proceeds, which go directly to the named beneficiary on the policy.
- Payable-on-death bank accounts, including checking accounts, savings accounts, and CDs with a POD designation.
- Transfer-on-death investment accounts, including brokerage accounts and individual stocks or bonds with a TOD designation.
- Jointly held property, such as real estate or bank accounts held as joint tenants with right of survivorship.
- Property held in a revocable living trust, which transfers according to the trust terms.
Your will and your beneficiary designations have to work together. Review those designation forms every few years, and especially after a divorce, a death in the family, or the birth of a child.
Limits on Who You Can Cut Out
Spouses and the Elective Share
You generally cannot leave your spouse nothing. Most states give a surviving spouse the right to claim an elective share of the estate regardless of what the will says. The share varies by state and typically falls between one-third and one-half, with some states tying the percentage to the length of the marriage. Under the UPC’s augmented estate approach, the elective share reaches 50% after 15 years of marriage. A spouse who feels shortchanged can petition the probate court to claim this statutory minimum instead of taking what the will provides.
Children and Omitted Heirs
Disinheriting adult children is legal in nearly every state, but you have to do it deliberately and clearly. Simply leaving a child’s name out can backfire, because most states have omitted child statutes designed to protect children who were accidentally left out, particularly children born after the will was signed. If a court finds the omission was unintentional, the child may receive a share as if no will existed.
The safer approach is to name the child and state your intention to leave them nothing, or to leave a token gift with language making the intention clear. Some people add a no-contest clause, which revokes the inheritance of anyone who challenges the will. Most states enforce these clauses, though they’re interpreted narrowly, and courts in a few states refuse to enforce them at all.5Legal Information Institute. No-Contest Clause A no-contest clause also has an obvious weakness: a child who was left nothing has nothing to lose by challenging the will anyway.
Keeping It Current
A will is not something you sign once and forget. Major life events should trigger a review: marriage, divorce, the birth of a child, the death of a beneficiary or executor, a significant change in your assets, or a move to a different state. In many states, divorce automatically revokes provisions benefiting your former spouse while the rest of the will stays intact. Relying on that default without updating the document is a gamble.
Drafting a New Will
The cleanest way to make changes is to draft a new will that includes a clause revoking all prior wills. Because most wills are now prepared electronically, starting fresh is often as fast as amending the old one and avoids confusion about which provisions control. The new will has to go through the same signing and witnessing formalities as the original.
Codicils
A codicil is a separate document that amends an existing will without replacing it, and it must be signed and witnessed the same way. Codicils made sense when wills were drafted by hand. Today they’re mostly a source of confusion, since a codicil that doesn’t mesh cleanly with the original creates ambiguity, and stacking multiple codicils over the years makes things worse. For anything beyond a truly minor change, a new will is almost always the better option.
Revoking Without Replacing
You can revoke a will by physically destroying it with the intent to cancel it. Tearing, burning, or shredding all work, as long as the destruction was intentional.6Legal Information Institute. Revocation of Will by Act Someone else can destroy the will for you, but only in your presence and at your direction. Revoking without signing a new will means you’ll die intestate and your assets will be distributed under your state’s default rules.
If You Skip It
When you die intestate, the probate court distributes your property according to a statutory formula. Specifics vary by state, but the general pattern is similar: a surviving spouse gets the largest share, followed by children. If you have a spouse and children together, many states give the entire estate to the spouse. If you have children from a previous relationship, the spouse and children typically split the estate. With no spouse or children, assets flow to parents, then siblings, then more distant relatives.
Intestacy rules are rigid. They do not account for relationships that fell apart, relatives you would have excluded, or friends and charities you would have included. Unmarried partners receive nothing under intestacy in every state. Stepchildren you raised but never formally adopted receive nothing. Even a simple will gives you dramatically more control than the default.
Where to Keep It
The original signed copy is the version that matters. Courts typically require the paper document with original ink signatures, and in many jurisdictions, if the original can’t be found after your death, there’s a legal presumption that you destroyed it intentionally.
A fireproof home safe works well as long as your executor knows the combination or where to find the key. A bank safe deposit box sounds secure but often creates problems, because most banks require a death certificate and sometimes a court order before anyone can open a deceased person’s box, which can delay probate at the worst time. If the will names the executor, and the executor needs the will to prove their authority, you’ve built a catch-22. Some states have procedures for opening a box solely to retrieve a will, but the process varies.
A better option for many people is to leave the original with the attorney who prepared it or to file it with the local probate court, which some jurisdictions allow for a small fee. Wherever you store it, tell your executor exactly where it is and make sure at least one other trusted person knows too. Digital copies are useful for reference but do not substitute for the signed original in court.
Doing It Yourself vs. Hiring Help
You can draft a will yourself using templates from court websites or legal software, and for straightforward estates with no blended families, business interests, or tax issues, that approach works fine. Attorney-drafted wills typically start around $300 for a simple document and can run over $2,000 for a comprehensive estate plan that includes powers of attorney, healthcare directives, and trust provisions. Cost depends on the complexity of your situation and the attorney’s billing method.
Where professional help earns its fee is in catching the mistakes you don’t know you’re making: beneficiary designations that conflict with the will, assets that won’t pass through probate at all, or language ambiguous enough to invite a challenge. If your estate involves property in more than one state, minor children from different relationships, or significant assets, the drafting fee is likely the cheapest part of the whole process.