PBGC
PBGC is the abbreviation for the Pension Benefit Guaranty Corporation, a federal corporation within the Department of Labor created by Title IV of the Employee Retirement Income Security Act of 1974 (ERISA). PBGC operates pension-insurance programs intended to protect benefits in covered private-sector defined benefit plans when a plan ends without enough money or, under the multiemployer program, cannot pay benefits under the applicable rules. A defined benefit plan promises a benefit determined under the plan's formula, often a monthly retirement payment.
PBGC does not insure individual-account or defined contribution plans, such as 401(k) plans. Governmental plans are excluded, and church plans generally are excluded unless the plan makes an election under Internal Revenue Code § 410(d) and notifies PBGC, under PBGC-prescribed procedures, that it wishes Title IV to apply. Other coverage exclusions also apply, including some plans maintained by small professional-service employers. A participant can check the plan's Summary Plan Description or ask the employer or plan administrator whether the plan is covered.
PBGC has legally separate single-employer and multiemployer programs. In the single-employer program, a sufficiently funded plan may end through a standard termination by providing all promised benefits, often through annuity purchases or permitted lump sums. An underfunded plan may qualify for a distress termination, and PBGC may seek an involuntary termination in circumstances specified by law. If PBGC becomes trustee of an underfunded single-employer plan, it administers the plan and pays guaranteed benefits directly.
A multiemployer plan is generally maintained under collective bargaining by two or more unrelated employers, often in the same or related industries. When an insured multiemployer plan becomes insolvent and cannot pay guaranteed benefits, PBGC generally provides financial assistance to the plan rather than taking over administration and paying each participant directly. The plan continues paying benefits subject to the applicable rules.
PBGC insurance does not guarantee every promised benefit in full. The amount protected depends on statutory limits and rules concerning the type and timing of the benefit, the participant's age and payment form, and how long the benefit or plan amendment was in effect before termination. The single-employer and multiemployer guarantees are different.
PBGC is not the plan sponsor or plan administrator merely because a plan is insured. Before PBGC becomes trustee, participants ordinarily obtain plan-specific benefit, funding, and termination information from the employer or plan administrator. PBGC's role and the available guarantee depend on the type of plan and the event affecting it. PBGC explains the separate programs and payment structures on its website.
[Last reviewed in August of 2026 by the Wex Definitions Team]
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