What Is a Will?
A will (formally, a last will and testament) is a legal document that states who inherits your property, who should manage your estate, and—critically for parents—who should serve as guardian for your minor children. The person you name to carry out these instructions is called the executor.
A will only takes effect when you die, and only after a court accepts it. That court process is called probate. Before your executor can act, they usually must be formally appointed by the court, which issues letters of testamentary as proof of their authority.
A valid will generally requires that you be a competent adult, sign the document, and have it witnessed (rules vary by state, and a handful of states recognize handwritten "holographic" wills). A will is the foundation of nearly every estate plan.
What Is a Living Trust?
A living trust (also called a revocable trust or revocable living trust) is a legal arrangement you create during your lifetime to hold your assets. You typically act as the trustee while you're alive, keeping full control, and you name a successor trustee to take over when you die or become incapacitated.
The key move is funding the trust: retitling assets—your home, bank accounts, investments—into the trust's name. Assets held in a properly funded trust pass directly to your beneficiaries without probate. Because it's revocable, you can change or cancel it anytime while you're alive and competent.
One thing a trust cannot do: name a guardian for your minor children. Only a will can do that, which is one reason many trust-based plans still include a will.
Will vs Trust: The Key Differences
| Will | Living Trust | |
|---|---|---|
| Takes effect | Only at death | Immediately, while you're alive |
| Probate | Goes through probate | Avoids probate for funded assets |
| Privacy | Becomes public record | Stays private |
| Names guardians | Yes | No |
| Cost | Lower upfront | Higher upfront |
| Best for | Most people; naming guardians | Avoiding probate; incapacity planning; privacy |
For a fuller side-by-side, see our will vs trust deep dive.
Probate: The Real Dividing Line
Probate is the court-supervised process of validating a will, paying debts, and distributing what's left. Its reputation for being slow, costly, and public is the single biggest reason people consider trusts.
How much probate matters depends heavily on your state. Some states have streamlined or small-estate procedures that make probate quick and cheap; others are notoriously expensive and drawn-out. Assets that pass outside a will—like life insurance with a named beneficiary, retirement accounts, or jointly owned property—already skip probate regardless of whether you have a trust.
Do I Need a Will, a Trust, or Both?
Almost everyone should have a will. If you have minor children, a will is essential because it's the only way to name their guardian.
You may want to add a living trust if you own real estate (especially in more than one state), value privacy, want a smooth plan for possible incapacity, or live somewhere probate is expensive. If your estate is modest and your state has simple probate, a will alone often does the job.
Many people use both. In a trust-based plan, the trust handles asset distribution, and a special will called a pour-over will acts as a safety net: it "pours" any assets you forgot to move into the trust so they end up governed by the same terms. The pour-over will still names guardians and covers anything left outside the trust.
Whichever route you choose, work through an estate planning checklist so beneficiary designations, account titles, and key documents all point in the same direction.
What It Costs
A simple will can be inexpensive—free with basic online tools, or a few hundred dollars with an attorney. A living trust package generally costs more to set up because of the added drafting and the work of retitling assets, but it can save time and money at death by avoiding probate. The right choice is a trade-off between upfront cost and back-end simplicity for your heirs. Some tools, such as EstateWrap, help families organize these documents and settle an estate after a death.
What Happens If You Have Neither
If you die without a will or trust, you die intestate. State law—not you—then decides who inherits, following a fixed order of relatives (spouse, children, parents, and so on). A court appoints an administrator to handle your estate, and if you have minor children with no surviving parent, a judge decides who raises them. Intestacy rarely matches what people actually want, which is why even a basic will beats having nothing.