Accounting & Reporting

Pension and OPEB Accounting

Read a pension footnote the way an actuary does — and know which of the four assumptions actually moves the number, which moves only the income statement, and which moves nothing at all.

  • Expert
  • 12 min total
  • 12 chapters

What decision this helps you make: How to measure, present, and interpret a defined benefit pension or retiree medical obligation, and what to do when the numbers change for reasons unrelated to the business.

What this topic is

A defined benefit plan promises a specified retirement benefit. The employer bears the risk that investments underperform, that people live longer, and that discount rates fall. ASC 715 requires the funded status — the difference between the projected benefit obligation and plan assets — on the balance sheet, and splits the annual cost into components that are reported in different places. Other post-employment benefits, principally retiree medical, follow the same architecture with sharper measurement problems and, usually, no assets at all.

Why it matters

A pension obligation is a large, long-dated, leveraged bet on interest rates and mortality sitting inside a company that is in some other business entirely. A 100 basis point move in the discount rate can change the obligation by fifteen percent or more. That change flows through OCI, moves equity, and moves any covenant built on it — with no operating cause whatsoever. For a mature manufacturer or airline the plan can be larger than the operating business, and the risk-transfer decision is one of the biggest capital allocation choices the board will make.

Who should learn it

CFOs and controllers at companies with legacy defined benefit plans, treasurers evaluating risk transfer, credit analysts adjusting for pension debt, audit committees, and investors trying to separate plan noise from business results.

What you will understand

  • What the projected benefit obligation is, how it differs from the accumulated obligation, and which one matters when
  • The components of net periodic benefit cost and why only service cost sits in operating income
  • How the discount rate, expected return, and mortality assumptions each move different parts of the answer
  • What settlement and curtailment accounting does, and why an annuity purchase creates an immediate charge

Prerequisites

Common misconception

"The pension expense in the income statement tells you what the plan cost this year." It does not, and it has not since the corridor method was invented. Net periodic benefit cost blends a genuine cost of the year, an interest accretion, an assumed return that may bear no resemblance to actual returns, and amortization of gains and losses from years ago. Only service cost — one component, often the smallest — reflects benefits earned in the current period.