Concept · C:projected-benefit-obligation

Projected benefit obligation

Working definition

The actuarial present value of pension benefits attributed to service to date using expected future compensation when the benefit formula depends on compensation.

On this page
  1. Apply it
  2. Common mistake
  3. Keep the boundary clear
  4. Authority

Projected benefit obligation belongs in a plan-specific employer file. PBO measures benefits attributed to service through the date and includes expected future compensation when the formula depends on pay. Reconcile it from opening to ending balance using supplied actuarial movements.

Apply it

An $18 million opening PBO plus $1.2 million service cost, $900,000 interest, $600,000 prior service cost, and $400,000 loss, less $1.1 million benefits, equals $20 million.

Common mistake

Do not assume that pBO is the amount the employer must pay immediately. PBO is an actuarial present-value measure of benefits attributed to service to date, not a current cash demand. That error would turn a long-term measured promise into an unsupported current liquidity claim.

Keep the boundary clear

The reconciliation checks arithmetic, not the actuarial valuation. Salary growth, mortality, retirement, discount rates, and participant cash flows remain specialist inputs.

Authority

Read ASC 715-30-35-1A for the projected benefit obligation measure.

Learning objectives

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Learning level

Apply this concept

  • Explain and apply projected benefit obligation within a reconciled employer benefit-plan workpaper using supplied authoritative and actuarial facts.

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Updated Sep 11, 2026 Review due Dec 11, 2026