The defined benefit plan is the pension your grandfather retired on. It's also the retirement benefit that's nearly gone from the private sector, dropping from covering 38% of private-sector workers in 1980 to under 10% today. DB plans survive in government, unionized industries, and a handful of legacy corporate programs, and they're making a small comeback in certain sectors as retention pressure intensifies. For HR and finance leaders at organizations that still sponsor one, understanding how DB plans work, fund, and report is foundational. For candidates evaluating offers, knowing what a DB plan is actually worth changes comp negotiations meaningfully.
How the DB Benefit Formula Works Most DB plans use a formula like: 1.5% x years of service x final average salary. An employee who retires with 30 years of service and a $100,000 final average salary gets $45,000 per year for life. Variations use different percentages, different averaging periods (final three years vs. highest five years), and different credit for early retirement. Some plans add a cost-of-living adjustment; others fix the benefit at retirement.
The benefit is paid from a plan trust that the employer funds based on actuarial projections. The employer, not the employee, bears the risk that investment returns fall short.
Funding Status and Why It Matters A DB plan's funded status is the ratio of plan assets to projected benefit obligations. A fully funded plan has assets equal to or exceeding obligations. An underfunded plan doesn't, and the sponsor has to make up the gap through required contributions. ERISA minimum funding rules and IRS Section 430 impose specific contribution schedules for underfunded plans, and funded status directly affects corporate earnings under FASB ASC 715.
What Happens if My Employer's DB Plan Fails? The Pension Benefit Guaranty Corporation (PBGC) insures most private-sector DB plans. If a plan terminates with insufficient assets, PBGC takes over and pays benefits up to a statutory maximum ($7,437 per month for 2026 retirees at 65). Government and church plans aren't insured by PBGC and have no equivalent federal backstop.
Why Private-Sector DB Plans Have Nearly Disappeared Three forces drove the shift. Funding volatility: DB liabilities grew faster than assets through low-interest-rate periods, forcing large contributions. Accounting transparency: FAS 158 and its successors put DB funding gaps onto balance sheets, which stock analysts reacted to. And workforce mobility: DB plans reward long tenure and penalize job changes, which fits a workforce that stayed 30 years more than one that changes jobs every five. Defined contribution plans shifted risk to employees and simplified employer accounting.
Running or Evaluating a Defined Benefit Plan in 2026 For plan sponsors, treat a DB plan as an ongoing business function, not a legacy obligation. Hire or retain competent actuaries, audit funded status quarterly, maintain compliance with PBGC reporting, and review plan design every three to five years for whether it still fits your compensation strategy. For candidates, understand the vesting schedule, benefit formula, and portability rules before counting a DB promise as part of total rewards. DB plans are often worth more than they appear on an offer letter, because the employer-paid benefit stream has real present value. They can also be worth less than they appear if you leave before vesting, so read the cliff-vesting and graded-vesting details carefully.
The Department of Labor's Employee Benefits Security Administration publishes DB plan rules at dol.gov/agencies/ebsa . The PBGC publishes maximum guaranteed benefit amounts and plan-termination procedures at pbgc.gov .
.svg)
.svg)
