Why Beneficiary Designations Can Override Your Will
Henry Supinski, ChFC® · 5 min read · April 2026
Most people assume their will controls where their money goes when they die. For a surprising number of their largest accounts, it doesn't. IRAs, 401(k)s, life insurance policies, and annuities all pass by beneficiary designation, completely outside of probate, and completely regardless of what your will says.
What Passes Outside Your Will
When you opened your 401(k), you filled out a beneficiary form. Same with your IRA, your life insurance policy, and possibly your brokerage accounts. Those designations are legally binding contracts between you and the financial institution, and they supersede your will, your trust, and anything else in your estate plan.
This means if your will says "everything goes to my spouse" but your IRA beneficiary form still lists your ex-spouse from 15 years ago, your ex-spouse gets the IRA. It doesn't matter what the will says. It doesn't matter what you intended. The beneficiary form wins.
Why This Happens More Than You'd Think
Beneficiary designations are easy to forget. You fill them out when you open an account and never think about them again. But life changes: marriages, divorces, births, deaths, estrangements. Your estate plan evolves, but the beneficiary forms sitting in a filing cabinet at Fidelity or Vanguard don't update themselves.
We see this in almost every new client engagement. Someone has a well-drafted will and a properly funded trust, but their retirement accounts, which are often the largest assets in their estate, are pointed somewhere completely different.
The Tax Consequences Can Be Enormous
Beneficiary designations don't just control who gets the money. They control how it's taxed. A surviving spouse who inherits an IRA can roll it into their own IRA and continue deferring taxes. A non-spouse beneficiary must draw down the entire account within 10 years under the SECURE Act, potentially creating massive tax liability in the process.
Naming a trust as a beneficiary, which sounds like it should simplify things, can actually accelerate taxes if the trust isn't drafted correctly. Trust tax rates hit the top federal bracket at only about $15,000 of income. A married couple filing jointly does not reach that same bracket until their income is roughly fifty times higher. The wrong structure can cost your heirs tens of thousands in unnecessary taxes.
What About Per Stirpes vs. Per Capita?
Most beneficiary forms let you choose how the money flows if your primary beneficiary dies before you. "Per stirpes" means their share passes to their children. "Per capita" means it's split equally among surviving beneficiaries. Choosing the wrong one, or not choosing at all, can create results that directly contradict your estate plan.
The Fix Is Simple, But It Requires Coordination
At least once a year, pull every beneficiary designation you have: 401(k), IRA, Roth IRA, life insurance, annuities, HSA, 529 plans, and any transfer-on-death (TOD) brokerage accounts. Compare them against your current estate plan. Make sure they reflect your current life, not the one you had when you opened the account.
This is one of the first things we do with every new client at Blackshire. It's not glamorous. It's not complicated. But it's one of the highest-impact planning moves you can make, because getting it wrong is permanent and irreversible.
A Hypothetical That Shows the Stakes
The names are invented. The pattern shows up constantly. A man remarries in his 50s. His will and trust are updated to provide for his new wife. His $900,000 IRA, opened during his first marriage, still lists his first wife as primary beneficiary. When he dies, the custodian's job is simple: pay the person on the form. The IRA goes to the first wife. The will never enters the conversation, and unwinding it after the fact ranges from difficult to impossible. Whether anything can be recovered is a question for an estate litigation attorney, and it's a fight nobody plans to fund.
A second version of the same mistake: leaving the beneficiary line blank or naming your estate. That can force the account through probate and compress the payout options, turning a tax-deferred asset into an accelerated tax bill.
One More Wrinkle for Pennsylvania Families
Passing outside the will is not the same as passing outside of tax. For Pennsylvania residents, retirement accounts left to children are generally still subject to the PA inheritance tax at 4.5%, even though they skip probate. Life insurance proceeds, by contrast, are exempt. The designation controls who receives the asset. The state still decides how it's taxed on arrival. We cover the two-state picture in Delaware versus Pennsylvania estate treatment.
How We Approach It
A beneficiary audit is part of onboarding for every Blackshire client. We pull every designation, custodian by custodian, and put them in one document next to the estate plan. Primary and contingent, per stirpes elections, TOD registrations, all of it. Then we flag mismatches for your estate attorney to resolve, and we recheck the list every year and after every major life event. It's the least glamorous part of a family continuity plan and one of the most valuable.
Questions We Hear
Does a will ever override a beneficiary designation?
As a general rule, no. The designation is a contract with the custodian and controls the account. There are narrow exceptions that vary by state and account type, which is a question for your estate attorney. The planning answer is simpler: never rely on an exception. Make the form say what you mean.
Do beneficiary designations avoid probate?
Usually, yes. An account with a properly named living beneficiary passes directly to that person without going through probate. Avoiding probate is not the same as avoiding tax, though. State inheritance taxes and income taxes on inherited retirement accounts still apply on their own terms.
How often should I review my beneficiary designations?
Once a year, and immediately after any marriage, divorce, birth, death, or estrangement. The annual check takes less than an hour for most households and catches the drift between your documents and your life.
Should I name my trust as the beneficiary of my IRA?
Sometimes, and only with an attorney who drafts trusts for this purpose. A trust can add control over how heirs receive money, but a trust that isn't designed to receive retirement accounts can accelerate taxes badly. This is a case where the drafting matters more than the concept.