OPEB and Postretirement Benefits: ASC 715 Guide for the CPA Exam

Other Postretirement Benefits Under ASC 715

Other postemployment benefits (OPEB) -- primarily retiree healthcare and life insurance -- are accounted for under ASC 715-60. While the framework closely parallels pension accounting under ASC 715-30, several key differences make OPEB a distinct and heavily tested FAR exam topic. Unlike pensions, OPEB plans are typically unfunded or underfunded, and the benefit obligation measurement involves unique actuarial assumptions related to healthcare cost trends.

Key Terminology

Understanding OPEB accounting requires familiarity with two obligation measures that differ from pension terminology:

Expected Postretirement Benefit Obligation (EPBO)

The EPBO is the actuarial present value of all postretirement benefits expected to be paid to an employee, the employee's beneficiaries, and any covered dependents. It represents the full expected cost of providing postretirement benefits and is measured at a given date regardless of whether the employee is eligible to receive benefits. The EPBO is not reported on the balance sheet but is used to calculate the APBO.

Accumulated Postretirement Benefit Obligation (APBO)

The APBO is the portion of the EPBO attributed to employee service rendered to a specific date. For an active employee who is not yet fully eligible for benefits, the APBO is the portion of the EPBO attributed to service from the hire date through the measurement date. Once the employee reaches the full eligibility date, the APBO equals the EPBO. The APBO is the OPEB equivalent of the pension's projected benefit obligation (PBO).

Full Eligibility Date

The full eligibility date is the date at which an employee has rendered sufficient service to be entitled to full postretirement benefits. Benefits are attributed to employee service from the hire date (or the date when credited service begins, if later) to the full eligibility date. No benefits are attributed to periods after the full eligibility date.

Net Periodic Postretirement Benefit Cost

The components of net periodic postretirement benefit cost mirror those of net periodic pension cost:

1. Service cost: The actuarial present value of benefits attributed to employee service during the current period. This is the only component reported in operating income.
2. Interest cost: The increase in the APBO due to the passage of time, calculated by multiplying the beginning APBO by the discount rate.
3. Expected return on plan assets: Reduces net periodic cost. Equal to the expected long-term rate of return applied to the market-related value of plan assets (if any). Many OPEB plans have no assets.
4. Amortization of prior service cost: Changes in the APBO resulting from plan amendments are recognized in other comprehensive income (OCI) and amortized to net periodic cost over the average remaining service period to the full eligibility date.
5. Amortization of net gain or loss: Actuarial gains and losses exceeding 10% of the greater of the APBO or plan assets are amortized over the average remaining service period of active employees.

Healthcare Cost Trend Rate

A unique feature of OPEB accounting is the healthcare cost trend rate assumption. This rate reflects the expected annual rate of change in the cost of healthcare benefits due to factors such as medical inflation, changes in utilization, and advances in medical technology. The assumption typically starts at a higher near-term rate and grades down to an ultimate trend rate over a specified number of years.

For example, an employer might assume a near-term healthcare cost trend rate of 7% grading down to an ultimate rate of 4.5% over 10 years. This assumption has a significant effect on the APBO and the service and interest cost components. A one-percentage-point increase in the assumed trend rate can dramatically increase both the obligation and the annual cost.

Funded Status Reporting

ASC 715 requires the employer to report the funded status of the OPEB plan on the balance sheet. The funded status equals the fair value of plan assets minus the APBO. Since most OPEB plans are unfunded or significantly underfunded, the funded status is typically a large net liability. Amounts not yet recognized as components of net periodic cost (prior service cost and net actuarial gains or losses) are reported in accumulated other comprehensive income (AOCI).

Differences from Pension Accounting

• Pensions use the projected benefit obligation (PBO); OPEB uses the APBO, which is a portion of the EPBO.
• Pension benefits are attributed over the period from hire to expected retirement; OPEB benefits are attributed from hire to the full eligibility date, which is often earlier than the retirement date.
• OPEB involves the healthcare cost trend rate assumption, which has no parallel in pension accounting.
• OPEB plans are typically unfunded or funded through VEBA trusts, while pension plans are more commonly funded through dedicated trust assets.
• Prior service cost for OPEB is amortized to the full eligibility date, not the expected retirement date.

Exam Preparation Tips

• Know the distinction between EPBO, APBO, and the full eligibility date -- these are foundational concepts for OPEB questions.
• Understand how the healthcare cost trend rate affects both the obligation and annual cost, and be ready for sensitivity analysis questions.
• Practice calculating net periodic postretirement benefit cost using all five components.
• Remember that service cost is the only component reported in operating income; all other components are reported below the line.
• Compare and contrast OPEB and pension accounting -- the exam frequently tests candidates on the differences between the two frameworks.