
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.
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).
- 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
- Primary and contingent beneficiaries with percentage allocations totaling 100%
- For a trust beneficiary: the trust's full legal name, date established, and tax identification number
- A Certification of Trust or the trust summary pages, if the plan asks for them
- Spousal consent signature where the plan requires it
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
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
Phone: 1-855-756-4738
Not in Milliman's published guidance1
- A beneficiary form to download
Sources1
Sources
Data sourced from Milliman primary sources (17 pages reviewed). How we research.
Download these Milliman instructions
Download instructions for the whole estateA 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)
Phone
Toll-free
Empower workplace plans
Mailing address
Website
Estate requests go through general customer service.
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