IBM Pension Plan
International Business Machines Corporation (NYSE: IBM) sponsors the IBM Personal Pension Plan, one of the largest U.S. corporate defined benefit pension plans, with approximately 140,566 participants as of the 2024 plan year. The plan was originally closed to new participants in 2005 and fully frozen to all legacy benefit accruals effective January 1, 2008 as IBM shifted to defined-contribution retirement benefits. In a landmark reversal, IBM amended the plan beginning January 1, 2024 to add a Retirement Benefit Account (RBA), a cash-balance layer crediting 5% of eligible monthly pay to all U.S. IBM employees with at least one year of service, including new hires, funded through the plan's substantial existing surplus. This simultaneously eliminated IBM's 5% 401(k) match and 1% automatic contribution. IBM has also aggressively de-risked the plan through two major pension risk transfers: $16 billion to Prudential and MetLife in September 2022 covering approximately 100,000 participants, and $6 billion to Prudential in September 2024. The plan remained 136% funded as of December 31, 2024.
Plan at a glance
How the IBM benefit is calculated
Two components within the same plan: (1) Legacy frozen benefit, the original IBM Personal Pension Plan accrued benefits (both traditional defined-benefit and prior cash-balance credits) were frozen effective January 1, 2008; no new accruals under the original formula since that date. (2) Retirement Benefit Account (RBA, effective January 1, 2024), a new cash-balance layer within the same plan: a monthly credit of 5% of eligible base pay is posted to each participant's notional RBA account. Interest is credited at 6% annually for 2024-2026; at the 10-year U.S. Treasury yield with a 3% minimum floor for 2027-2033; and at the prevailing 10-year Treasury yield (no floor) beginning in 2034. RBA balances are distributable at separation or retirement as a lump sum or converted to a lifetime annuity.
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
What "frozen" means for this plan
The IBM Personal Pension Plan was closed to new participants effective January 1, 2005 and all benefit accruals under the original formula were frozen effective January 1, 2008. The Form 5500 frozen flag reflects this original 2008 freeze of the legacy benefit. HOWEVER, effective January 1, 2024, IBM amended the plan to add the Retirement Benefit Account (RBA), a new cash-balance credit layer within the same IBM Personal Pension Plan, available to ALL current U.S. IBM employees with at least one year of service, including employees hired after the original 2005 plan closure, effectively reopening accruals and new-entrant eligibility. As of 2024 the plan is no longer frozen to new accruals (RBA credits are actively accumulating) and is no longer frozen to new entrants. The pre-2008 legacy frozen accrued benefits remain unchanged.
A frozen pension does not disappear. Benefits already earned are generally protected and continue to be paid under the plan's terms. A freeze changes whether new benefits accrue going forward, not whether existing benefits are honored.
Pension risk transfer history
The IBM Personal Pension Plan has executed two major pension risk transfers: (1) September 2022 (payments transferred effective January 1, 2023), $16 billion in DB pension obligations transferred equally (50/50) to The Prudential Insurance Company of America and Metropolitan Life Insurance Company, covering approximately 100,000 IBM plan participants and beneficiaries; Prudential serves as lead payment administrator. IBM recognized a $5.9 billion pre-tax settlement charge in 2022. (2) September 2024, approximately $6 billion transferred to The Prudential Insurance Company of America from the U.S. Qualified IBM Personal Pension Plan, with a $2.7 billion pre-tax settlement charge in Q3 2024. The Qualified plan remained 136% funded as of December 31, 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 Prudential Financial / MetLife (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 IBM pension
Did IBM reopen its pension plan in 2024, and who qualifies for the Retirement Benefit Account (RBA)?
Yes. Effective January 1, 2024, IBM amended the IBM Personal Pension Plan to include a Retirement Benefit Account (RBA), a cash-balance component that automatically credits 5% of eligible monthly base pay to a notional account for each qualifying U.S. IBM employee. The RBA is available to all current U.S. employees with at least one year of service, including employees hired after the original 2005 plan closure. No employee contribution is required, and employees are 100% vested immediately upon meeting the one-year service requirement. IBM simultaneously eliminated its 5% 401(k) match and 1% automatic 401(k) contribution.
What interest rate does the IBM Retirement Benefit Account earn, and can I take a lump sum at retirement?
IBM guarantees a 6% annual interest credit on RBA balances for 2024, 2025, and 2026. From 2027 through 2033 the rate equals the 10-year U.S. Treasury yield with a 3% minimum floor, and beginning in 2034 it equals the prevailing 10-year Treasury yield with no floor. Upon separation or retirement you may take your RBA balance as a lump sum or convert it to a lifetime annuity. Your separately accrued pre-2008 legacy pension benefit may have its own distribution terms.
What happened with IBM's $16 billion pension transfer to Prudential and MetLife?
In September 2022, IBM transferred $16 billion in IBM Personal Pension Plan obligations equally to Prudential and MetLife, covering approximately 100,000 participants and beneficiaries; affected participants began receiving payments from these insurers on January 1, 2023. In September 2024, IBM transferred an additional $6 billion to Prudential. If your legacy pension benefit was included, you now receive monthly payments from Prudential or MetLife rather than IBM, but your benefit amount and schedule are unchanged. State insurance guaranty protections apply within applicable limits.
Is my IBM 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 IBM 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: Participants 140,566 from Form 5500 PY2024. Funded ratio 136% (U.S. Qualified plan, Dec 31 2024) confirmed via multiple secondary sources citing IBM's 2024 Annual Report; the SEC filing returned HTTP 403 and was not directly fetched, so plan_assets/liabilities left null. RBA confirmed as a cash-balance amendment WITHIN the existing IBM Personal Pension Plan (not a new plan) per CRR, Milliman, and Russell Investments. 2022 $16B PRT (50/50 Prudential/MetLife) confirmed from Prudential's press release; 2024 $6B PRT confirmed from news citing IBM filings. early_retirement_age left null (not confirmed). NRA 65 inferred from standard ERISA design. plan_number null. Additional sources: https://www.milliman.com/en/insight/ibm-saves-billions-by-reopening-pension-plan; https://news.prudential.com/latest-news/prudential-news/prudential-news-details/2022/Prudential-and-MetLife-entrusted-to-fulfill-16B-in-pension-obligations-for-100000-IBM-retirement-plan-participants-and-beneficiaries-09-13-2022/default.aspx; https://www.plansponsor.com/ibm-completes-6b-pension-risk-transfer-with-prudential/; https://newsroom.ibm.com/IBM-Updates-Benefits-Program-for-IBMers-and-Retirees
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Schedule a CallPlan details sourced from https://www.sec.gov/Archives/edgar/data/51143/000005114325000015/ibm-20241231_d2.htm 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 IBM.