Update Beneficiaries After Divorce in Idaho: The ERISA Trap
Idaho law automatically revokes your ex-spouse from your will, trust, IRA, and bank POD accounts when the divorce is effective. A will is covered by Idaho Code § 15-2-508; revocable trusts, IRAs, and bank POD accounts are covered by § 15-2-804, which generally treats your former spouse as if they predeceased you for these instruments.
That sounds comprehensive. It's not.
There is a category of accounts where Idaho's automatic revocation doesn't apply — and if you die without manually updating those designations, the plan may pay the designated beneficiary under its records, subject to applicable plan or court-order requirements.
The ERISA Preemption Problem
The federal Employee Retirement Income Security Act (ERISA) governs employer-sponsored retirement plans (401(k), 403(b), pensions) and employer-provided life insurance. Under the U.S. Supreme Court ruling in Egelhoff v. Egelhoff, ERISA preempts state laws that would automatically revoke beneficiary designations upon divorce.
In plain English: for an account governed by ERISA, the plan administrator generally follows the beneficiary designation on its plan records rather than Idaho's automatic-revocation statute, subject to applicable plan or court-order requirements. Your divorce decree may still impose obligations on you, so update the beneficiary form with the plan administrator.
If you divorced in Idaho, never updated your employer 401(k) beneficiary form, and then die, the plan administrator may pay the beneficiary on its plan records. The rights of a current partner, children, or your estate then depend on the plan terms and any applicable court order.
Which Accounts Auto-Revoke and Which Don't
| Account Type | Auto-Revoked by Idaho Law? | Action Required |
|---|---|---|
| Last Will and Testament | Yes (§ 15-2-508) | Draft a new will anyway |
| Revocable Living Trust | Yes (§ 15-2-804) | Execute formal trust amendment |
| IRA (Traditional/Roth) | Yes (§ 15-2-804) | Submit new beneficiary form to custodian |
| Bank POD accounts | Yes (§ 15-2-804) | Update POD designations |
| Employer 401(k)/403(b) | No — ERISA preempts | Submit new form to plan administrator |
| Employer pension | No — ERISA preempts | Submit new form to plan administrator |
| Employer group life insurance | No — ERISA preempts | Submit new form to employer/carrier |
| Joint tenancy (real estate) | Severed to tenancy in common | Record Quitclaim Deed for sole ownership |
The pattern is clear: anything your employer provides or administers falls outside Idaho's automatic revocation. These are the accounts you must update manually, immediately after your divorce.
How to Update
Step 1: List every employer-sponsored account. Check with your HR department for a complete list: 401(k) or 403(b) plan, defined benefit pension, group life insurance, accidental death and dismemberment (AD&D) insurance, and any supplemental life insurance.
Step 2: Request beneficiary change forms. Most plans have their own forms — you can't just send a letter. Some plans offer online beneficiary updates through their portal (Fidelity, Vanguard, TIAA, etc.).
Step 3: Name your new beneficiaries. You'll need their full legal name, date of birth, Social Security number, and relationship to you. For minor children, consider naming a trust or other appropriate arrangement as beneficiary rather than naming children directly, because plan terms may require a custodian or guardian for a minor beneficiary.
Step 4: Confirm the update. After submitting the form, follow up with the plan administrator to confirm the change has been processed. Keep a copy of the completed form and the confirmation for your records.
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The Decree Override Exception
There's one scenario where your divorce decree does control beneficiary designations on ERISA plans: if the decree specifically requires you to maintain a life insurance policy or retirement account beneficiary designation to secure child support or alimony obligations.
In that case, you're legally obligated to keep your ex-spouse as beneficiary for those specific accounts in the amounts required by the decree. Changing the designation in violation of the decree can result in a contempt of court action and a lawsuit against your estate.
Don't Stop at Beneficiaries
While you're updating designations, also revoke or replace:
- Powers of attorney — review both financial and healthcare documents. A spouse-agent's authority under a power of attorney generally terminates when an action for dissolution, annulment, or legal separation is filed under Idaho Code § 15-12-110, unless the POA provides otherwise. Executing new documents that name your chosen agents provides clarity.
- Healthcare directives/living will — if your ex was your designated healthcare proxy, execute a new directive.
- Digital account recovery contacts — remove your ex from Apple ID recovery, Google account recovery, and any other platform that lists them as a trusted contact.
The Idaho After-Divorce Checklist includes a beneficiary audit worksheet that lists every account type, tracks which require manual updates vs. auto-revocation, and provides space to record confirmation numbers for each completed change.
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