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How to designate beneficiaries at Paychex

Beneficiaries are managed online or by mail

Beneficiary designations on Paychex retirement retirement accounts carry more weight than most people realize. They override a will, control who receives the balance, and determine the tax treatment of inherited distributions. Reviewing these designations after any major life change is essential.

The transfer rules at Paychex vary across 9 retirement accounts. Below is a breakdown of beneficiary options, trust funding, and which products support each method.

Beneficiary form at Paychex

Beneficiary Designation Form - Qualified Retirement Plan (RS0016) (for employer retirement plans).

Open the form →
Traditional 401(k) PlanSafe Harbor 401(k) PlanSIMPLE 401(k) PlanSolo 401(k) PlanPaychex Pooled Employer Plan (PEP)Multiple Employer Plan (MEP)Profit Sharing PlanSIMPLE IRA403(b) Plan
1
Designate beneficiaries in Paychex Flex:
  • Register at paychexflex.com (Sign Up), then log in and select Retirement to reach plan details
  • Enter beneficiary information through paychexflex.com or the Paychex Flex App
2
Or complete the paper Beneficiary Designation Form - Qualified Retirement Plan (RS0016):
  • Download the form
  • For each primary and secondary beneficiary the form collects relationship (Spouse or Other), name, address, SSN, and share percentage
3
If you are married and naming a primary beneficiary other than your spouse, your spouse signs the Spousal Waiver in the presence of a notary public
4
Return the completed RS0016 to your employer. The form states: "Return this completed form to your employer. Employers should keep all beneficiary forms on file."

Required Documents

  • Beneficiary's name (for each primary and secondary beneficiary)
  • Beneficiary's relationship (Spouse or Other) (for each primary and secondary beneficiary)
  • Beneficiary's address (for each primary and secondary beneficiary)
  • Beneficiary's Social Security number (for each primary and secondary beneficiary)
  • Share percentage for each beneficiary
  • Your employer name and office/client number, and your own name, SSN and address (on the paper form)
  • A beneficiary line for the trust, with "Other" as relationship (when naming a trust on the paper form)
  • Completed Beneficiary Designation Form (RS0016), or the equivalent entry in Paychex Flex
  • Notarized Spousal Waiver on RS0016 (if married and naming a primary beneficiary other than the spouse, a trust included)

What Paychex says about beneficiaries

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

Which accounts take a beneficiary1

Employer retirement plan

Paychex's employer booklet "Your Company 401(k) Plan" states that all newly enrolled participants must complete a Beneficiary Designation.1

A trust is connected to a Paychex plan account by naming it as beneficiary, on RS0016 or in Paychex Flex. RS0016 has no separate trust section.2

Who can be named3

A spouse, employer retirement plans

Under RS0016 a married participant has one primary beneficiary, the spouse, unless the Spousal Waiver section is completed and notarized.2

Under RS0016, if you are not married and later marry, your spouse will be your primary beneficiary unless you complete a new Beneficiary Designation Form and your spouse consents.2

A trust, employer retirement plans

Paychex's death-benefit form RS0084 lists "individuals or revocable trusts" as non-spouse beneficiaries, and identifies a trust by its name, its EIN and the trustee's name.3

A person, employer retirement plans

Paychex's death-benefit form RS0084 lists "individuals or revocable trusts" as non-spouse beneficiaries.3

How many beneficiaries, and how shares are split

Employer retirement plan

RS0016 takes primary and secondary beneficiaries, each with a share percentage.2

What a designation takes to be effective

Employer retirement plan

A married participant who names a primary beneficiary other than the spouse needs the spouse's signature on the RS0016 Spousal Waiver, witnessed by a notary public.2

Beneficiary forms Paychex issues1

Beneficiary Designation Form - Qualified Retirement Plan (RS0016)

For employer retirement plans. Completed by the participant, returned to the employer. Available to download.2

What Paychex's agreement says about beneficiaries1

When a designation takes effect

A designation or change is effective only upon delivery to the plan administrator.2

Sources3

SimplyTrustSimplyTrust Editorial·

Sources

Data sourced from Paychex primary sources (10 pages reviewed). How we research.

Download these Paychex instructions

Download instructions for the whole estate

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

Paychex estate support

Paychex Support

Client support — COBRA, Health and Benefits Help

Paychex HR PEO employee support (Paychex Flex)

Paychex HR PEO client Retirement Services Help

1-855-776-7929 (option 2)

Client support — Flexible Spending Account Help

Estate requests go through general customer service.

Death claims supportNotify online →
Verified Sep 2026

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