3M Pension Plan
The 3M Employee Retirement Income Plan (ERIP) is a tax-qualified defined-benefit cash-balance plan covering current and former U.S. employees of 3M Company (NYSE: MMM). With 56,773 participants reported for plan year 2024, the ERIP was approximately 94 percent funded on a GAAP basis as of December 31, 2024. Two major transactions reshaped the plan during 2024: the April 1 Solventum health-care spin-off transferred approximately $2.7 billion in benefit obligations and $2.4 billion in plan assets to that new entity, and a June 2024 pension risk transfer moved approximately $2.5 billion in obligations for roughly 23,000 retirees to Metropolitan Tower Life Insurance Company, effective October 1, 2024. 3M closed the plan to new hires in 2009 and announced on January 8, 2024 that benefit accruals for all non-union U.S. participants will freeze effective December 31, 2028. Union employees are explicitly excluded from the accrual freeze, and current retirees' benefits are unaffected.
Plan at a glance
How the 3M benefit is calculated
The 3M ERIP operates as a defined-benefit cash-balance plan in which each participant's benefit is expressed as a hypothetical account balance accumulating pay credits and interest credits per the plan document. The benefit is distributable as a single lump sum (calculated using average daily rates on 30-year U.S. Treasury securities and applicable mortality tables) or as a monthly annuity. The plan was closed to new hires as of 2009 (Portfolio II closure). Remaining eligible non-union participants continue to receive cash-balance credits through December 31, 2028, the announced freeze date.
This is general educational information about how the plan's formula works, not a calculation of your individual benefit. Your actual benefit depends on your service, pay history, and the plan terms in effect during your employment.
Vesting and retirement ages
Pension risk transfer history
On June 13, 2024, 3M announced the purchase of a group annuity contract from Metropolitan Tower Life Insurance Company (Met Tower Life), a MetLife subsidiary, transferring approximately $2.5 billion in defined-benefit pension obligations and related assets for approximately 23,000 U.S. retirees and beneficiaries (about 60% of ERIP retiree participants). Met Tower Life began paying and administering benefits for the transferred group effective October 1, 2024. The contract was purchased entirely from ERIP trust assets; no additional corporate cash was required and monthly benefit amounts were unchanged. 3M recognized a non-cash pre-tax settlement charge of approximately $0.8 to $0.9 billion in Q2 2024.
In a pension risk transfer (PRT), an employer transfers some or all of its pension obligations to an insurance company through a group annuity contract. If your benefit was transferred, your monthly payment generally stays the same, but the company paying it changes, and PBGC insurance is replaced by state insurance guaranty association coverage. For this plan, the counterparty was Metropolitan Tower Life Insurance Company (a MetLife subsidiary) (2024).
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Lump sum versus annuity: the core decision
Many pension participants eventually face a choice between a single lump sum payment and a lifetime monthly annuity. A lump sum offers flexibility and the ability to leave a balance to heirs, but it shifts investment and longevity risk onto you. An annuity provides predictable income for life, often with a survivor option, but is generally irrevocable once elected.
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Common questions about the 3M pension
When exactly will the 3M pension stop accruing benefits for active employees?
3M announced on January 8, 2024 that it will freeze benefit accruals for non-union U.S. employees effective December 31, 2028. Until that date, eligible non-union participants continue to earn cash-balance credits in the ERIP. Union employees are not subject to this freeze and continue accruing under their collective bargaining agreements. Current retirees and participants with vested benefits are not affected by the freeze.
Did 3M transfer pension obligations to an insurance company?
Yes. In June 2024, 3M transferred approximately $2.5 billion in ERIP obligations for about 23,000 U.S. retirees and beneficiaries, roughly 60% of ERIP retiree participants, to Metropolitan Tower Life Insurance Company (Met Tower Life), a MetLife subsidiary. Effective October 1, 2024, Met Tower Life began paying those retirees directly, with monthly payment amounts unchanged. Affected retirees were notified in June 2024.
Can I take my 3M ERIP benefit as a lump sum?
Yes. The 3M ERIP offers a lump-sum distribution calculated using average daily rates on 30-year U.S. Treasury securities and applicable mortality tables. This lump sum may be rolled directly into an IRA or qualified plan tax-deferred, or received as a taxable distribution (subject to mandatory 20% federal withholding). Monthly annuity options, including 50%, 75%, and 100% joint-and-survivor forms, are also available. Participants whose benefits were transferred to Met Tower Life should contact MetLife for their distribution options.
Is my 3M pension protected by the PBGC?
Most single-employer defined benefit pensions are insured by the Pension Benefit Guaranty Corporation (PBGC), a federal agency. If a covered plan terminates without enough money to pay promised benefits, the PBGC pays benefits up to a legal maximum that varies by age. Benefits that have been transferred to an insurance company through a pension risk transfer are no longer PBGC insured and are instead backed by state guaranty associations.
Should I take my 3M pension as a lump sum or an annuity?
There is no single right answer. The decision depends on your health and life expectancy, your other retirement assets, whether you need to provide for a survivor, and the interest rate environment that sets the lump sum value. Our lump sum versus annuity guide walks through the trade-offs in detail.
Plan details
Note: Total participants 56,773 (Form 5500 PY2024), reflecting the plan after the April 2024 Solventum transfer and the October 2024 MetLife PRT. Funded 94% from web-synthesized FY2024 10-K excerpt; SEC 10-K returned HTTP 403, so plan_assets/liabilities null. Formula set cash_balance per Form 5500 cash-balance flag (some third-party guides use FAP language, likely legacy). NRA 65 and ERA 55 inferred from the 3M Nonqualified Pension Plan III document (mirrors ERIP). The Jan 8 2024 announcement freezes accruals effective Dec 31 2028; plan is NOT currently frozen to accruals. The user's '2023 freeze' note corresponds to this Jan 2024 public announcement (likely a late-2023 board decision). Additional sources: https://www.metlife.com/about-us/newsroom/2024/june/metlife-to-provide-annuity-benefits-to-a-portion-of-3m-retirees-and-beneficiaries/; https://401kspecialistmag.com/3m-to-freeze-u-s-pension/; https://www.plansponsor.com/3m-announces-transfer-of-23000-retirees-to-insurer/
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Schedule a CallPlan details sourced from https://news.3m.com/2024-06-13-3M-transfers-a-portion-of-U-S-pension-payment-obligations and additional public sources. Participant counts are drawn from the plan's most recent Form 5500. Last updated June 26, 2026.
This page is for educational purposes only and does not constitute investment, tax, or legal advice, nor a recommendation about any pension election. Pension plan terms are drawn from public filings and company materials and may be incomplete or out of date. Confirm all details with your plan administrator and consider consulting a qualified professional before making decisions. Waterfall Planning is not affiliated with 3M.