“Do I need a will, a living trust, or both?” is one of the most common questions in estate planning. The honest answer is that it depends on your family, your assets and your state. This guide explains what each document does, where each one shines and where it falls short, so you can walk into an attorney’s office with better questions.

What is a will?

A will is a legal document that says who receives your property when you die, who is in charge of carrying out your wishes (the executor), and, if you have minor children, who you want to raise them (the guardian). A will takes effect only at death, and it generally goes through probate, the court process that validates the will and supervises the settling of the estate. (We explain it in What Is Probate, and How Do Families Avoid It?)

What a will cannot do: it does not control assets that pass by other means, such as accounts with named beneficiaries, jointly owned property with survivorship rights, or assets already held in a trust. It also does nothing if you become incapacitated while alive.

What is a living trust?

A revocable living trust is a legal arrangement you create during your life. You transfer ownership of assets into the trust, and name a trustee to manage them for your benefit. Usually you are the trustee while you are alive and well, and you name a successor trustee to take over if you die or cannot manage things. After death, the successor distributes the assets according to the trust’s instructions, generally without going through probate.

Because you can change or cancel a revocable trust at any time, you keep control during your life. (An irrevocable trust, by contrast, is harder to change and is used for specific tax or protection goals. That is a topic for a specialist.)

Side-by-side comparison

  • Probate: A will usually goes through probate. Assets properly held in a living trust usually do not.
  • Privacy: A will becomes a public court record in most places. A trust generally stays private.
  • If you become incapacitated: A will does nothing. A trust lets your successor trustee manage trust assets without court involvement. (You still want a durable power of attorney for assets outside the trust.)
  • Cost and effort: A will is usually cheaper and simpler to prepare. A trust costs more up front and requires you to retitle assets into it.
  • Guardians for children: Only a will can name a guardian for minor children.
  • Control over timing: A trust can release money in stages (for example at ages 25, 30 and 35) or for specific purposes. A will generally distributes outright, or by creating a trust inside the will.
  • Taxes and creditors: A revocable trust generally does not reduce income or estate taxes and does not shield assets from your creditors during your life. Do not buy one for those reasons.

The step many families miss: funding the trust

A trust only controls what is in it. If you sign trust documents but never retitle your house, change account ownership or update beneficiary forms, the trust may be empty, and your family could still face probate. This is the most common trust mistake. Many attorneys add a “pour-over will,” which sends stray assets into the trust at death. That helps, but those assets may still go through probate first.

When a will may be enough

  • You have modest assets, and most of what you own passes by beneficiary designation or joint ownership.
  • You live in a state with simple, low-cost probate or an easy procedure for small estates.
  • Your family is uncomplicated and gets along.
  • You mainly need to name guardians and an executor.

When a living trust is worth considering

  • You own real estate, especially in more than one state. Without a trust, each state may need its own probate process.
  • Privacy matters to you.
  • You want to manage the risk of incapacity without court involvement.
  • You have a blended family, a child with special needs, or a beneficiary who needs money released in stages.
  • You want a smooth hand-off of a business or investment property.

Documents everyone needs either way

Questions to ask an estate planning attorney

  1. Based on my state and my assets, do I need a trust, or is a will enough?
  2. What will you charge for each option, and what will it cost to maintain?
  3. Who will help me retitle my assets into the trust?
  4. How do federal and state estate taxes apply to my situation? For 2026 deaths the federal estate tax exemption is $15 million per person, but some states have their own estate or inheritance taxes with much lower thresholds.
  5. How often should I review these documents?

Avoiding the do-it-yourself traps

Online templates can work for simple needs, but wills fail on technicalities: wrong number of witnesses, missing notarization where required, or language that does not fit your state. Review the signing rules for your state, or pay for a short professional review. The cost of a small mistake is borne by your family.

The takeaway

A will says what you want. A living trust can say it in more detail, more privately and with fewer court steps, as long as it is set up properly. Neither works unless the paperwork matches your real life. Choose the simplest plan that does the job, keep it current, and tell your family where it is.

This article is general education, not legal or tax advice. Laws vary by state; consult a licensed attorney.