A last will and testament and a trust are two different legal tools, not two names for the same thing. A will is a set of instructions that only takes effect after you die and must be validated by a probate court. A trust is an arrangement that can start working the day you sign it, holds assets in the name of a trustee, and can keep working during incapacity and after death without court involvement. Most thorough estate plans use both.
What a Will Does
A will names who inherits your property, who raises your minor children, and who settles your affairs as executor. The executor gathers assets, pays debts, files tax returns, and distributes what remains to the people you named.1American Bar Association. Guidelines for Individual Executors and Trustees
A will does nothing while you’re alive. At death, it still doesn’t work on its own. A court must validate it through probate, where a judge confirms it’s authentic, creditors get a window to file claims, and the executor distributes assets under court supervision.2American Bar Association. The Probate Process
One job belongs to the will alone: naming a legal guardian for your minor children. A trust can hold money for a child, but it cannot say who raises them. If guardianship matters to you, you need a will whether or not you also create a trust.
What a Trust Does
A trust is an arrangement where you (the grantor) move ownership of assets to a trustee, who holds and manages them for the people you choose (the beneficiaries). A living trust can hold your bank accounts, investments, and real estate right now. If you become incapacitated or die, the trustee you named continues managing those assets with no court involvement.
The trustee has a fiduciary duty to act solely in the beneficiaries’ interest, including investing prudently and keeping accurate records.3Legal Information Institute. Fiduciary Duties of Trustees
Revocable vs. Irrevocable
A revocable living trust lets you stay in charge. You can change beneficiaries, add or remove assets, rewrite the terms, or dissolve it entirely. Most people serve as their own trustee while they’re healthy, so daily life doesn’t really change. The trade-off: because you keep full control, the law still treats those assets as yours. Creditors can reach them, and they count toward your taxable estate.
An irrevocable trust is the opposite. Once you transfer property in, you generally can’t take it back or change the terms without the beneficiaries’ consent and sometimes court approval. That loss of control is the point. Because you no longer own the assets, they may sit outside your taxable estate and beyond your personal creditors. Irrevocable trusts are common in estate tax planning, asset protection, and providing for a beneficiary with special needs who could otherwise lose Medicaid or Supplemental Security Income eligibility.
Testamentary Trusts
Not every trust exists during your lifetime. A testamentary trust is written inside your will and only comes into being after you die and the will goes through probate. It lets you set conditions on how heirs receive their inheritance, like staggered payments at certain ages, without administering a trust while alive. The catch is that assets funding it still pass through probate first.
How a Will and a Trust Actually Differ
Probate
This is the difference most people care about. Everything in a will passes through probate, which means court fees, potential attorney costs, and delays that can run months or years for complicated estates. Total probate costs commonly run between 2% and 7% of the estate’s value. A living trust avoids probate for the assets it holds, which usually means faster access for beneficiaries and lower total cost, even with the higher upfront expense of creating the trust.
Privacy
A will becomes a public court record during probate. Anyone can look up who inherited what and how much the estate was worth. A trust stays private. If keeping those details out of public view matters, a trust is the only tool that delivers it.
Incapacity
A will says nothing about what happens if you’re alive but unable to manage your own affairs. Without separate planning documents, your family may need to petition a court for a conservatorship or guardianship, which is slow and expensive. A revocable living trust handles this quietly: the successor trustee you named steps in and manages trust assets without any court involvement.
Control Over Distribution
A will generally produces a one-time handoff of assets once probate ends. A trust can distribute assets over decades on whatever schedule you design: a percentage at 25, more at 30, monthly living expenses, funds released only for education. That control matters when beneficiaries are young, financially inexperienced, or have special needs.
Cost
A simple will typically costs less to create than a trust. Legal fees for a straightforward will might run a few hundred dollars; a living trust often costs several thousand depending on complexity. Looking only at the upfront number is misleading. Probate costs, executor fees, and attorney fees at death can easily exceed what the trust cost to set up, and the savings multiply when real estate sits in more than one state, since each property would otherwise require its own probate.
Assets Neither Document Controls
Some of your largest assets won’t follow instructions in either a will or a trust. They transfer directly to whoever you named as beneficiary on the account, regardless of what any other document says:
- Retirement accounts: 401(k)s, IRAs, and workplace plans pass to the beneficiary on file with the plan administrator.
- Life insurance: the death benefit goes to the policy’s named beneficiary.
- Transfer-on-death and payable-on-death accounts: bank and brokerage accounts with TOD or POD designations pass directly to the named person.
- Jointly held property with right of survivorship: automatically passes to the surviving co-owner.
If your will leaves everything to your daughter but your 401(k) still lists your ex-spouse, your ex-spouse gets the 401(k). This is the single most common estate planning mistake, and no trust drafting fixes it. Review beneficiary designations on every account as often as you review the will or trust itself.
Funding the Trust Is the Step People Skip
Signing a trust document is only half the job. A trust controls only the assets you actually move into it, a process called funding. An unfunded trust is an empty container. If you pay an attorney to draft a careful revocable trust but never retitle your house, bank accounts, or investments into the trust’s name, those assets still go through probate as if the trust didn’t exist.
Funding looks different depending on the asset:
- Real estate: sign a new deed transferring the property from your name to yourself as trustee of your trust, then record the deed with the county recorder’s office.
- Bank and brokerage accounts: contact each institution, complete their ownership-change forms, and have the account retitled in the trust’s name.
- Vehicles and other titled property: apply for a new title through the DMV listing the trust as owner.
- Personal property without titles: sign a general assignment transferring items like furniture, jewelry, and household goods to the trust.
The work is why so many trusts end up partially or fully unfunded. Treat funding as the main event, not an afterthought. An attorney who drafts your trust should walk you through funding it.
Using Both Together
Most comprehensive estate plans don’t pick one. The trust holds the bulk of your assets and distributes them privately, outside of probate, on the schedule you designed. The will handles what the trust can’t: naming a guardian for minor children, covering stray assets that never made it into the trust, and addressing property you may have acquired shortly before death.
The linking tool is a pour-over will. Instead of distributing assets to individual beneficiaries, it directs that anything still in your name at death be transferred into your trust, where the trustee distributes it under the trust’s terms.4Justia. Pour Over Wills Under the Law It’s a safety net for anything you forgot to retitle.
One important limit: assets passing through a pour-over will still go through probate before reaching the trust. The pour-over will catches strays; it doesn’t eliminate probate for them. The goal is still to fund the trust as fully as you can during your life so the pour-over has as little to do as possible.
Note on Estate Taxes
A common misconception is that a revocable living trust reduces federal estate tax. It doesn’t. Because you keep the power to revoke or change it, the IRS treats the trust’s assets as part of your taxable estate. An irrevocable trust can remove assets from your taxable estate because you’ve genuinely given up ownership and control. For 2026, the federal estate tax exemption is $15,000,000 per individual under the One Big Beautiful Bill Act,5Office of the Law Revision Counsel. 26 US Code 2010 – Unified Credit Against Estate Tax and married couples can combine their exemptions through portability.6Internal Revenue Service. Whats New – Estate and Gift Tax Most estates fall well below those thresholds, so federal estate tax isn’t a factor for most families choosing between these tools.
What Happens If You Have Neither
If you die with no will and no trust, your state’s intestacy laws decide who gets your property. A probate court distributes assets to your closest relatives in an order set by statute, usually starting with a surviving spouse and children. Stepchildren, unmarried partners, close friends, and favorite charities get nothing under intestacy, regardless of your actual relationships. The court also appoints someone to administer the estate, and that person may not be who you would have chosen. For families with minor children, the court selects a guardian with no input from you. Dying without any estate planning documents is the most expensive and least predictable outcome for the people you leave behind.