Who Gets What? Wills vs. Trusts vs. Beneficiary Designations
If your IRA beneficiary form still lists your ex-spouse from 15 years ago, your ex-spouse will get that account. It doesn't matter what your will says, and it doesn't matter if you've remarried.
Wills versus trusts versus beneficiary designations, and how they interact, is one of the most expensive things to get wrong in estate planning. Today we're covering the most common, and most expensive, mistakes, and how to avoid them.
Estate planning sounds complicated. You have beneficiaries, you have wills, you have trusts, and understanding how these are all coordinated is a difficult task. But understanding how these different elements interact is something every adult should have a grasp on.
What a Will Actually Does
A will is a legal document that explains what should happen with your assets after you pass away. It also does two other important things: it names a guardian for minor children, and it appoints an executor to manage your estate.
Here's a key limitation most people don't realize: a will only controls what's called probate assets, meaning property that doesn't already have a different transfer method attached to it. A will has to go through probate, a court-supervised process that validates it and transfers the assets. Probate takes time, costs money, and is a public process.
What Beneficiary Designations Actually Do
This is the part most people misunderstand. Certain accounts, retirement accounts like your 401(k), your IRA, your Roth IRA, and life insurance policies, don't pass through your will at all. They pass directly to whoever is named as your beneficiary on those accounts, regardless of what your will says.
This is a beneficiary designation, and it's essentially a contract with the financial institution to give the money directly to your beneficiary. This is the exact scenario from the opening of this post: if you divorce, remarry, or simply forget to update a form, the beneficiary designation stays exactly as it is, regardless of any of that. Your will has zero power to override it.
What a Trust Actually Does
A trust is a separate legal arrangement where you appoint a trustee to manage assets on behalf of the trust's beneficiaries. The most common version people use is a revocable living trust, one you create during your lifetime, maintain control over, and can revoke or change at any time.
The big advantage of a trust is that assets placed inside it generally avoid probate, which means faster distribution, more privacy, and less cost. A trust doesn't replace a will, though. Most people with a trust also have a will alongside it, especially if they have minor children, since a trust can't name a guardian.
How These Three Tools Actually Work Together
Here's a simple way to think about it: beneficiary designations control specific accounts directly. A trust controls whatever assets are actually placed into it. A will acts as the catch-all for everything else, including guardianship for your kids.
The mistake I see most often is having these three pieces tell different stories. Maybe the will says one thing, but the beneficiary form was never updated after a major life event. That mismatch is where things go wrong, and it's completely avoidable.
The One Task Worth Doing Today
If you do nothing else after reading this, log into your accounts, your IRA, 401(k), life insurance policies, and make sure you have primary beneficiaries designated, and contingent beneficiaries if applicable. Make sure you've listed exactly who you'd like. It takes a few minutes, it's completely free, and it will save a lot of hassle down the line.
A good rule of thumb is to review your beneficiaries every few years. Life changes, and you want to make sure your accounts reflect that.
The Bottom Line
Estate planning isn't just for the high net worth or for retirees. It's for anyone with a retirement account, a life insurance policy, or kids.