Estate planning at ShareBuilder 401k

How to protect 5 ShareBuilder 401k accounts — manage beneficiaries online, fund a trust by mail, and file death claims

ShareBuilder 401k

Subsidiary of ShareBuilder Inc.

sharebuilder401k.com
ShareBuilder 401k logo

ShareBuilder 401k Customer Support

Mailing Address

ShareBuilder Advisors, LLC, 801 2nd Ave Suite 1400, Seattle, WA 98104

Plan Sponsor Support
Plan Participant Support
Participant Services

ShareBuilder 401k Customer Support

Mailing Address

ShareBuilder Advisors, LLC, 801 2nd Ave Suite 1400, Seattle, WA 98104

Plan Sponsor Support
Plan Participant Support
Participant Services

Plan Sponsor Support / Participant Services

Mailing Address

ShareBuilder Advisors, LLC, 801 2nd Ave Suite 1400, Seattle, WA 98104

Participant Services
Verified Jul 2026

Retirement retirement accounts at ShareBuilder 401k transfer by beneficiary designation, not through probate. With 5 account types, each carrying different tax implications for heirs, getting these designations right is one of the most consequential estate planning decisions.

Beneficiary changes at ShareBuilder 401k can be made online and by phone. Accounts can also be retitled into a trust to keep them out of probate entirely.

ShareBuilder 401k provides specific procedures for both proactive estate planning and filing claims after a death.


Frequently asked questions

Yes. You can name a revocable living trust as primary or contingent beneficiary by updating your beneficiary designation form. Contact Plan Participant Support at (800) 431-7934 x4 to request the form. If married, your spouse must provide written, notarized consent before the trust can be named as primary beneficiary. Before doing so, consult a tax advisor: a trust named as 401(k) beneficiary must qualify as a "see-through" trust under IRS rules to allow distributions to stretch over the beneficiaries' lives; otherwise the full account may need to be distributed within five years (if the participant died before required beginning date) or ten years.

For ERISA-covered plans (Traditional, Safe Harbor, and Roth 401(k) plans for businesses with employees), a married participant's spouse is automatically the primary beneficiary. To name a non-spouse or a trust as primary beneficiary, the spouse must provide written, notarized consent. Solo 401(k) plans covering only the owner with no common-law employees may not be subject to ERISA, in which case the plan document governs; check your plan documents or call (800) 431-7934 x4 to confirm.

Yes. A surviving spouse who is the named beneficiary of a ShareBuilder 401k account may roll the inherited balance to their own IRA or treat the 401(k) as their own. This preserves the ability to defer required minimum distributions until the surviving spouse's own RMD age. Contact Plan Participant Support at (800) 431-7934 x4 for the distribution rollover paperwork and to provide the receiving IRA account information.

Ascensus, LLC and Ascensus Trust Company serve as third-party administrator and recordkeeper for ShareBuilder 401k plans. Participant accounts are accessed through the Ascensus portal at myaccount.ascensus.com/sharebuilder401k. ShareBuilder Advisors, LLC is the SEC-registered investment advisor and ERISA 3(38) investment manager. Brokerage services are provided through Mid-Atlantic Clearing & Settlement Corporation and NewEdge Securities, Inc. Knowing the recordkeeper is useful when coordinating estate administration, as the executor or successor trustee may need to contact Ascensus directly to access account information.

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Sources

Data sourced from ShareBuilder 401k primary sources (13 pages reviewed). How we research.

Estate planning articles

Learn how to protect your ShareBuilder 401k accounts and other assets with trusts, beneficiary designations, and estate planning documents.