A will is the most fundamental estate planning document — it determines who gets your assets, who raises your kids, and who handles your affairs after you die. Without one, the state decides all of that for you.

Who Needs a Will

Short answer: every adult over 18. But it’s especially critical if you:

Situation Why a Will Is Critical
Have children under 18 Names a legal guardian — without this, a court decides
Own any property Directs who inherits your home, car, or valuables
Have a partner (unmarried) Without a will, unmarried partners inherit nothing
Want specific bequests Leave items or money to specific people or charities
Want to disinherit someone Must be explicit in many states
Have pets Names a caretaker and sets aside funds

What Happens Without a Will (Intestacy)

If you die without a will, state intestacy laws decide who inherits — and the results often surprise people:

Your Situation Who Inherits (Typical Intestacy)
Married, no kids Spouse gets everything (most states)
Married with kids Spouse gets 50–100%, kids split remainder
Unmarried with kids Kids inherit everything
Unmarried partner Partner gets nothing
Single, no kids Parents → siblings → extended family
No living relatives State takes everything (escheat)

What to Include in Your Will

Section What It Covers
Personal information Full legal name, address, date
Revocation clause Revokes all prior wills
Executor appointment Who manages your estate after death
Guardian designation Who raises your minor children
Asset distribution Who gets what — specific and residual bequests
Alternate beneficiaries Backup if a beneficiary dies before you
Debt instructions How debts should be paid
Funeral wishes Burial, cremation, or other preferences
Signatures Your signature + witnesses (2 in most states)

Step-by-Step: Writing Your Will

Step Action Details
1 Take inventory of assets List all property, accounts, valuables, and debts
2 Choose an executor Someone you trust to carry out your wishes
3 Name a guardian (if applicable) For minor children — discuss with the person first
4 Decide who gets what Be specific about valuable items; use a residual clause for everything else
5 Choose your method DIY, online service, or attorney
6 Draft the will Follow your state’s requirements
7 Sign with witnesses Two witnesses required in most states (three in Vermont)
8 Notarize (recommended) Makes it self-proving — speeds up probate
9 Store safely Fireproof safe, attorney’s office, or with your executor
10 Tell your executor Let them know where the will is stored

Cost Comparison

Method Cost Best For
Free template (state bar, AARP) $0 Very simple estates
Online service (Trust & Will, LegalZoom, Nolo) $100–$300 Most individuals and couples
Estate planning attorney $300–$1,000 Complex situations, blended families
Attorney (complex estate) $1,000–$3,000+ Business owners, high net worth, trusts needed

Types of Wills

Type Description Legally Valid?
Simple will Standard typed, signed, witnessed document ✓ (all states)
Testamentary trust will Creates a trust upon your death (for minor children’s inheritance)
Pour-over will Transfers remaining assets into an existing living trust
Joint will One will for two people (usually spouses) — inflexible ✓ (not recommended)
Holographic will Handwritten, no witnesses ✓ (only ~25 states)
Oral will Spoken, not written ✓ (very few states, very limited)

Witness Requirements by State

Most states require two witnesses who:

  • Are 18 or older
  • Are not beneficiaries of the will
  • Watch you sign (or hear you acknowledge your signature)
  • Sign the will themselves
State Rule States
2 witnesses required Most states
Notarization can replace witnesses Colorado, North Dakota
Holographic (handwritten) wills accepted ~25 states including CA, TX, VA, NC
Self-proving affidavit available ~45 states (speeds up probate)

Common Mistakes to Avoid

Mistake Why It’s a Problem
Not making a will at all State decides everything — often not what you’d want
Forgetting to update after life changes Divorce, new child, or death of a beneficiary can create chaos
Not naming alternate beneficiaries If the primary beneficiary dies first, the gift may lapse
Conflicting beneficiary designations Retirement accounts and insurance override your will
Improper witnessing Can invalidate the entire will
Hiding the will If nobody can find it, it’s as if it doesn’t exist
Disinheriting a spouse without agreement Most states guarantee spouses a minimum share (elective share)
Vague language “I leave my stuff to my kids” — name specific items and percentages

When to Update Your Will

Life Event Action Needed
Marriage or divorce Update beneficiaries and executor
Birth or adoption of a child Add guardian designation
Death of a beneficiary or executor Name replacements
Major asset change (buy/sell home) Update asset distribution
Move to a different state Verify will meets new state’s requirements
Every 3–5 years General review even without changes

Will vs. Trust

Feature Will Living Trust
Avoids probate
Privacy ✗ (public record after probate)
Cost to create $0–$1,000 $1,500–$5,000
Names guardian for children ✗ (need a will for this)
Covers incapacity
Takes effect at death During lifetime

Most people need both a will and powers of attorney at minimum. Add a living trust if you own property or have assets over $100,000.

Bottom Line

A will is the minimum estate plan every adult needs. It doesn’t have to be expensive or complicated — an online service for $100–$300 covers most people. The biggest risk isn’t getting the will wrong; it’s not having one at all. Start with the basics, name a guardian for your kids, and update it when life changes. Your family will thank you.

See our living trust guide or probate guide for next steps.