When creating an estate plan, many people assume that a will and a trust accomplish essentially the same thing. While both can be important tools for transferring assets and carrying out your wishes, wills and trusts are not interchangeable. Each works differently, controls different property, and becomes effective at a different time. Understanding those differences is an important part of building an estate plan that works as intended.
What Does a Will Control?
A will generally controls property that remains in your individual name at the time of your death and does not otherwise pass through a beneficiary designation, joint ownership, or another non-probate transfer.
A will “speaks at death,” meaning its provisions do not become effective until death. It must also meet the legal requirements for a valid will under applicable state law.
If you have a trust, your will does not automatically control assets that have already been transferred into that trust. An estate plan may include a “pour-over will,” which directs certain assets remaining in your estate at death into your trust, but that is different from using a will to change how assets already owned by the trust will be distributed.
How Does a Living Trust Work?

A living trust is created during your lifetime and can hold title to property transferred into it. Once an asset is properly transferred to the trust, the terms of the trust generally determine what happens to that property.
For example, if you transfer your home into your living trust and the trust states that the home will pass to your daughter at your death, simply changing your will to leave the home to someone else may not change the result.
This is an important reason why wills and trusts are not interchangeable. If your circumstances or wishes change, it is important to update the document that actually controls the asset.
A Real-Life Example of Why the Difference Matters
The circumstances surrounding Gay Dawn Tamplin’s death illustrate how easily problems can arise when a will and trust contain different instructions.
Gay Dawn had both a will and a living trust. She lived in an Alaska condominium with her life partner, Larry Daly. Five years before her death, she established a living trust and transferred the condominium into it. Under the terms of the trust, the condominium was to pass to her daughter, Gayleen.
In May 1998, Gay Dawn was diagnosed with a terminal illness. After living with Larry in the condominium for six years, she decided she wanted him to receive the property after her death. While in the hospital, Gay Dawn wrote a will stating that Larry should receive the condominium.
The problem was that the condominium was no longer owned by Gay Dawn individually. She had previously transferred it to her trust. Because the trust owned the property, changing her will did not change the trust’s instructions regarding who would receive the condominium.
To accomplish her new goal, Gay Dawn needed to address the terms of the trust itself.
Your Estate Plan Should Work as One Coordinated Plan
A comprehensive estate plan is more than a will or trust standing alone. Your will, trust, beneficiary designations, account ownership, real estate, powers of attorney, and other planning documents should work together.
This is why wills and trusts are not interchangeable, and why reviewing only one document may not be enough when your life or wishes change.
Marriage, divorce, the birth of a child or grandchild, the death of a loved one, a move to another state, the purchase or sale of property, or significant financial changes can all be reasons to revisit your estate plan.
Do Your Documents Still Reflect Your Wishes?
You may know exactly who you want to receive your property, but the more important question is whether your legal documents and the way your assets are titled will actually produce that result.
Do not wait for a crisis to discover that your will, trust, beneficiary designations, and other parts of your financial and estate plan do not work together as expected.
Contact us today to schedule a consultation. Whether you are creating an estate plan, updating an existing one, or simply wondering whether your current documents still accomplish your goals, we can help you review your plan and understand how each piece works together to protect what matters to you and your family.
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