A will (also called a “last will and testament”) is the legal document that tells the world what you want done with your property after you die — who inherits what, who manages the process, and who looks after any minor children. Without one, your state’s intestacy laws decide instead, often in ways that don’t match what you would have wanted. A will is the cornerstone of nearly every estate plan, even when other tools (beneficiary designations, trusts, joint ownership) carry most of the weight.
What a Will Actually Does
- Names beneficiaries for property that passes through probate — typically anything titled solely in your name without a beneficiary designation: personal possessions, bank accounts without payable-on-death designations, individually owned real estate, vehicles, business interests
- Names an executor (also called a “personal representative”) who will collect assets, pay debts and taxes, and distribute what remains. See our guide on what an executor does
- Names a guardian for minor children — arguably the single most important reason for parents of young children to have a will, even if they own little property
- Specifies how debts and taxes should be paid — from which accounts, in what order
- Can include charitable bequests, specific gifts (your grandmother’s ring to your niece), and conditional gifts
What a Will Doesn’t Control
This catches many people off guard: your will doesn’t override beneficiary designations or how assets are titled. A will controls only what passes through probate. The following pass outside of probate, governed by their own paperwork:
- Retirement accounts (401(k), IRA, 403(b)) — the beneficiary designation on file at the custodian governs, full stop
- Life insurance proceeds — same; the policy’s beneficiary designation controls
- Joint accounts with right of survivorship — the surviving joint owner gets the account automatically
- Property held as joint tenants with right of survivorship — the surviving co-owner takes title automatically
- Payable-on-death (POD) bank accounts and transfer-on-death (TOD) brokerage accounts — the named beneficiary takes the account when you die, no probate
- Assets held in a revocable living trust — pass per the trust document, not the will
That’s why an estate-planning review almost always includes a “beneficiary audit” — making sure your beneficiary designations match your will, and that no outdated designation (an ex-spouse, a deceased parent) is still on file.
Types of Wills
- Simple will — the standard. Names beneficiaries and an executor; suitable for most middle-income households
- Testamentary trust will — creates a trust at death (often to manage assets for minor children until they reach a specified age)
- Pour-over will — used alongside a living trust; sweeps any forgotten assets into the trust at death
- Holographic will — handwritten and signed by the testator without witnesses; valid in only about half of U.S. states and only under specific conditions. Risky — not recommended as a primary will
- Joint will — one document signed by two spouses; legally binding on the survivor in ways that often cause regret. Most attorneys advise against them
- Mutual or reciprocal wills — separate but mirror-image wills between spouses. Common and fine
Validity Requirements
Requirements vary by state, but most states require:
- You must be a legal adult (18 in most states) and of sound mind when signing
- The will must be in writing (typed or printed) — oral wills are rarely valid
- You must sign it, or direct someone to sign in your presence if you can’t physically sign
- At least two witnesses must sign in your presence (some states require three; some accept one). Witnesses generally can’t be beneficiaries
- Notarization is not always required, but a self-proving affidavit signed before a notary makes probate easier — witnesses don’t have to be tracked down years later to confirm signatures
A will signed in one state is generally valid in another, as long as it met the original state’s requirements when signed.
DIY vs. Attorney
Online will services (LegalZoom, Trust & Will, FreeWill, state-bar self-help sites) can produce a valid simple will for modest cost. They work well when:
- Your estate is straightforward (modest assets, no business interests, no special-needs beneficiaries)
- Your family situation is uncomplicated (married, simple distribution to spouse and children)
- You don’t need a trust, tax planning, or asset protection
An estate-planning attorney is worth the cost (typically $500–$3,000 for a basic plan) when:
- You have a blended family (children from prior marriages, stepchildren)
- You own a business or have business partners
- Your estate may face federal or state estate tax
- You have a beneficiary with special needs (a special-needs trust is essential)
- You have property in multiple states
- You anticipate family disputes over the estate
- You want a more sophisticated structure (revocable trust, generation-skipping provisions)
Keep Your Will Up to Date
Review and potentially update your will after any of these events:
- Marriage, divorce, or remarriage
- Birth or adoption of children or grandchildren
- Death of a named beneficiary, executor, or guardian
- Major change in financial circumstances (significant inheritance, business sale, retirement)
- Move to a different state
- Major changes in tax law affecting estates
Updates require either a “codicil” (a formal amendment, witnessed like the original) or, more commonly today, a brand-new will that revokes all prior ones. Don’t cross things out or write notes in the margins of an existing will — that can invalidate it.
Educational only. Estate-planning laws — including which documents are valid, who can serve as executor or agent, witness and notary requirements, and how assets pass — vary significantly by state. This article is not legal advice. Consult a licensed attorney in your state before drafting or relying on any estate document.