Concept · C:accumulated-postretirement-benefit-obligation

Accumulated postretirement benefit obligation

Working definition

The portion of the expected postretirement benefit obligation attributed to employee service through the measurement date.

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

Accumulated postretirement benefit obligation requires a named plan, population, date, and evidence owner. APBO is the actuarial present value of postretirement benefits attributed to service through the measurement date. It is the obligation used with any plan assets to determine other-postretirement funded status.

Apply it

Opening APBO of $7.5 million plus $500,000 service, $450,000 interest, and $300,000 loss, less $250,000 benefits, equals $8.5 million.

Common mistake

Do not assume that aPBO and EPBO always equal each other. APBO contains the portion of EPBO attributed to service through the measurement date. That distinction controls the funded-status measure. That error would include future service in the amount used to determine current funded status.

Keep the boundary clear

APBO and EPBO are connected measures, not two recognized liabilities. Apply the other-postretirement terms rather than substituting a pension PBO.

Authority

Read ASC 715-60-35-3 for the accumulated postretirement benefit obligation.

Learning objectives

Put the concept to work

Learning level

Apply this concept

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

Learning resources

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Updated Sep 11, 2026 Review due Dec 11, 2026