A lot of people assume that once they have a trust in place, a will becomes unnecessary. Others think a will alone is enough and never consider whether a trust belongs in their plan. Both assumptions can leave real gaps. Understanding how these two documents complement each other is one of the most practical things you can do when thinking about your estate plan.
Our friends at Hirani Law work through this with clients regularly, and what a will lawyer will tell you is that for many people, the strongest estate plan isn’t built around one document or the other. It’s built around both, working together intentionally.
What Each Document Actually Does
A will is a legal document that expresses your wishes for how your assets should be distributed after you die. It names an executor to carry out those wishes, can designate a guardian for minor children, and goes through the probate process before anything is distributed to your beneficiaries.
A trust, specifically a revocable living trust, holds assets during your lifetime and transfers them to your beneficiaries after you die without going through probate. You remain in control of the trust while you’re alive, and a successor trustee takes over when you pass away or become incapacitated.
The key difference is probate. Assets held in a trust avoid it entirely. Assets that pass through a will do not.
Why Having Both Often Makes Sense
Even people with a well funded trust in place typically still need a will. Here’s why. No matter how carefully you plan, assets sometimes get left out of a trust. A bank account opened after the trust was created, a piece of personal property, an unexpected inheritance. A will acts as a safety net for anything that didn’t make it into the trust.
This type of will is often called a pour over will. Its purpose is to capture any assets outside the trust at the time of your death and direct them into the trust so everything gets distributed according to the same set of instructions. Without it, those assets go through probate and get distributed according to state law rather than your wishes.
Beyond that, a will is the only document where you can name a guardian for minor children. A trust cannot do that. For parents, that alone makes a will an essential part of the plan regardless of what else is in place.
What Happens When They Are Not Coordinated
When a will and a trust exist independently, drafted at different times or by different people without attention to how they interact, the result is often conflict. The will might direct assets one way while the trust directs them another. Beneficiary designations on financial accounts might contradict both. Family members are left sorting out the confusion during an already difficult time.
Coordination is everything. The documents need to be drafted with awareness of each other, and they need to be reviewed together whenever a significant life change occurs.
Getting Your Plan in Order
If you have a will but no trust, or a trust but no will, or both but haven’t looked at them together recently, that’s worth addressing with an estate planning attorney. A complete and coordinated plan gives your family clarity and avoids the kind of problems that arise when the pieces don’t fit together properly.

