Milliman logo

Milliman

Subsidiary of Milliman, Inc. (employee-owned)

milliman.com

How to designate beneficiaries at Milliman

Beneficiaries are managed online, by phone or by mail

Milliman is now part of EmpowerAcquired, effective September 2026

Empower Retirement, LLC acquired Milliman's retirement and health & welfare administration business on 1 September 2026 (announced 30 June 2026, closing announced 2 September 2026). Milliman retained its actuarial consulting business and, for a limited transition period, continues to provide certain services to Empower. The millimanbenefits.com participant portal and the 866-767-1212 Benefits Service Center line are still live and still published by Milliman; Empower's Beneficiary Support Services line is 866-442-3888.

The procedures on this page reflect Milliman's accounts during the transition.Empower estate planning page →

Estate planning for Milliman retirement retirement accounts revolves around beneficiary designations. These designations—not a will—control who receives the account balance at death. For IRAs and employer-sponsored plans, the beneficiary designation also determines the tax treatment of inherited distributions, making it a decision with both legal and financial implications.

Milliman has 11 product types, and the estate transfer rules differ across them. Some support beneficiary designations on tax-advantaged accounts, some can be retitled into a trust, and others pass through the estate if nothing is set up. Each is covered below.

Beneficiary form at Milliman

Plan beneficiary designation form (for employer retirement plans).

401(k) Plan403(b) Plan401(a) Plan457(b) PlanProfit Sharing PlanMoney Purchase Pension PlanEmployee Stock Ownership Plan (ESOP)Defined Benefit (Pension) PlanCash Balance PlanNonqualified Deferred Compensation Plan457(f) Plan
1
Log in at millimanbenefits.com with your participant credentials. The login redirects to login.millimanonline.com
2
Open the beneficiary designation section of your account and work through every plan listed, not only the 401(k). One employer commonly runs a paired cash balance or pension plan alongside the 401(k), and each plan carries its own separate designation
3
Add primary and contingent beneficiaries:
  • Name, relationship, date of birth, and percentage allocation for each
  • For a trust: the trust's full legal name exactly as it appears in the trust agreement, the date it was established, and its tax identification number
4
If you are married and the plan is ERISA-covered, naming anyone other than your spouse (a trust included) as primary beneficiary requires your spouse's written consent
5
The plan may require the consent witnessed by a notary or a plan representative, and the designation will not take effect until that signed consent is received
6
Submit, then re-open the designation and confirm it now reads as complete for every plan, not just the one you edited
7
The portal's own Contact Us form handles Login Support, Registration Support, and General Information only. It is not a beneficiary or claims channel; use the phone for either

Required Documents

  • Beneficiary's name and relationship
  • Beneficiary's date of birth
  • Percentage allocation for each beneficiary. Allocations total 100%
  • Trust's full legal name, date established and tax identification number (when naming a trust). The name exactly as it appears in the trust agreement
  • Certification of Trust, full trust document or trust summary pages (when naming a trust, where the plan requires them). A Certification of Trust (trust summary) or the full trust document, with trust amendment pages where applicable
  • Spouse's written consent (if married, the plan is ERISA-covered and someone other than the spouse is named as primary beneficiary)
  • The plan's beneficiary designation form, completed (by mail). Issued by the service centre or the employer's HR department

What Milliman says about beneficiaries

Each section is Milliman's own statement, with the document it comes from numbered under Sources.

Which accounts take a beneficiary2

Employer retirement plan

The employer's plan document, not the recordkeeper, sets the rules; Milliman, and now Empower, administers what the plan says. Each plan carries its own designation, so updating the 401(k) does not update a paired pension or cash balance plan.1

A 401(k), 403(b), pension or other employer plan cannot be retitled into a trust during the participant's lifetime; a trust can only be named as its beneficiary.1

Pension

Defined benefit and cash balance plans carry survivor-annuity rules on top of the designation: the payment form the retiree elected can mean that nothing survives them at all.1

Who can be named1

A trust

A trust can be named as beneficiary on any of these plans.1

Whether a trust is taken on the portal or only on paper, and with or without a Certification of Trust, is set by the employer's plan document.1

How many beneficiaries, and how shares are split

All accounts

Primary and contingent beneficiaries are named with a percentage allocation for each, totaling 100%.1

What a designation takes to be effective

Employer retirement plan

On an ERISA-covered plan, a married participant naming anyone other than the spouse as primary beneficiary needs the spouse's written consent, which the plan may require witnessed by a notary or a plan representative.1

The designation will not take effect until the signed consent is received; a designation is only effective once it has been accepted by the plan. Naming a trust rather than the spouse still requires the consent.1

Beneficiary forms Milliman issues1

Plan beneficiary designation form

For employer retirement plans. Completed by the participant, returned to the address the service centre gives for the plan. Sent by the institution on request.1

What Milliman's agreement says about beneficiaries1

A designation and a will

A beneficiary designation on a retirement plan overrides a will: the plan pays the named beneficiary regardless of what the will says.1

Accounts handled elsewhere1

Empower

Milliman plans that have migrated since Empower acquired the administration business on 1 September 20261

Not in Milliman's published guidance1

  • A beneficiary form to download

Sources1

SimplyTrustSimplyTrust Editorial·

Sources

Data sourced from Milliman primary sources (17 pages reviewed). How we research.

Download these Milliman instructions

Download instructions for the whole estate

A printable PDF with the steps, required documents, and contact details — verified against Milliman primary sources. Bring it to the branch or keep it beside the phone.

Milliman estate support

Milliman Benefits Service Center (retirement and health & welfare accounts)

Empower workplace plans

Mailing address

Corporate headquarters (not a claims or forms address): Milliman, Inc., 1301 Fifth Avenue, Suite 3800, Seattle, WA 98101-2646

Estate requests go through general customer service.

Verified Sep 2026

Estate planning articles

Learn how to protect your Milliman accounts and other assets with trusts, beneficiary designations, and estate planning documents.

Forms for Planning Your Estate

Free forms for planning your estate: a will, living trust, pour-over will, both powers of attorney, living will, and TOD deed.

Free

Pour-Over Will

Catch anything outside your trust. Pairs with your revocable trust.

Get Started
$12/month

Revocable Living Trust

Create a revocable living trust to avoid probate, protect privacy, and control asset distribution.

Get Started
Free

Last Will and Testament

Name your heirs, guardians, and final wishes. Free for every state.

Get Started
Free

Healthcare Power of Attorney

Name someone to make medical decisions if you can't.

Get Started
Free

Financial Power of Attorney

Name someone to manage your finances if you can't.

Get Started
Free

Transfer on Death Deed

Transfer real property to a beneficiary upon your death without probate. Available in 34 states and the District of Columbia.

Get Started
Free

Vehicle Transfer on Death

Name a beneficiary to inherit your vehicle at death without probate. Available in 26 states and the District of Columbia.

Get Started
Free

Living Will

State in advance which life-sustaining treatments you want or refuse, in the document your state recognizes, with signing instructions from the statute.

Get Started

All forms

Tools for Planning Your Estate

Free tools for planning your estate: what a will or trust costs, whether you need a trust or TOD deed, and how documents are signed.

How Much Does a Revocable Living Trust Cost?

Compare revocable living trust costs across providers including online services and attorneys.

Compare Costs

How Does SimplyTrust Compare to LegalZoom, Trust & Will, and Other Services?

Compare what it costs to make a trust official across SimplyTrust, LegalZoom, Trust & Will, Rocket Lawyer, and Quicken WillMaker.

Compare Services

Do I Need a Revocable Trust?

Find out if a revocable trust makes sense based on your state, estate value, and family situation.

Check Now

Trust or Will: Which Costs Less?

Compare the cost of probate vs a trust for your state and estate value.

Compare Options

What Does Estate Planning Actually Cost?

Compare costs across estate planning providers including online services and attorneys.

Compare Costs

How Much Life Insurance Do I Need?

Calculate your life insurance needs based on income, debts, and family situation.

Use Calculator

Are My Beneficiary Designations Protected?

Check how divorce, creditors, and state laws affect your beneficiary designations.

Check Now

How Do I Sign Estate Documents?

Find witness, notary, and remote signing requirements for all 50 states.

Check Requirements

All tools