8.3 Other Postretirement Benefits Accounting

Other Postretirement Benefits

Other postretirement benefits (OPRBs) cover the non-pension benefits employers promise to retirees, most commonly health care, but also life insurance and other perks. Unlike pensions, these plans are usually unfunded, which creates distinct accounting challenges. Understanding how OPRBs are measured, recognized, and reported is essential because the obligations can be massive and the accounting closely parallels (but differs from) pension accounting under ASC 715.

Types of OPRBs

Other postretirement benefits are any benefits other than pensions that employers provide to retired employees. The most common type by far is postretirement health care: medical, dental, and vision coverage for retirees.

Other types include:

• Life insurance coverage for retirees
• Legal services provided to retirees
• Tuition assistance for retirees or their dependents
• Housing subsidies or allowances

Employers aren't legally required to offer OPRBs, but many have historically used them to attract and retain employees. That said, OPRBs have been declining in prevalence as employers look to reduce long-term financial commitments.

Funding of OPRBs

Most OPRB plans are unfunded, meaning the employer pays benefits on a pay-as-you-go basis rather than setting aside assets in a trust. Each year, the employer simply covers the cost of benefits as retirees incur them.

This matters for two reasons:

• Unfunded plans are less secure for retirees because no dedicated asset pool exists to guarantee future payments.
• From an accounting standpoint, an unfunded plan means the entire obligation shows up as a liability on the balance sheet with no offsetting plan assets.

Some employers do choose to partially or fully fund their OPRB plans by contributing to a trust, similar to a pension. Funded plans offer retirees more security but require larger upfront cash outlays from the employer.

Accounting for Other Postretirement Benefits

Measurement of the OPRB Obligation

OPRB accounting is governed by FASB ASC 715-60 (formerly SFAS 106), which requires employers to recognize the cost of providing OPRBs over the periods employees render service, not when benefits are actually paid out.

The central measurement is the accumulated postretirement benefit obligation (APBO). The APBO represents the actuarial present value of all future OPRB costs attributed to employee service rendered to date. Think of it as the answer to: "Based on what employees have earned so far, how much do we expect to owe in today's dollars?"

Calculating the APBO requires actuarial assumptions about:

• Employee turnover and retirement rates (when employees will leave or retire)
• Mortality rates (how long retirees will collect benefits)
• Healthcare cost trend rates (how fast medical costs will rise in the future)
• Discount rates (the rate used to convert future benefit payments to present value)

The healthcare cost trend rate is especially significant for OPRBs and has no parallel in pension accounting. Small changes in the assumed rate of medical cost inflation can dramatically shift the size of the obligation. The APBO is remeasured each year to reflect updated assumptions and the passage of time.

Recognition of OPRB Costs

Each period, employers recognize net periodic postretirement benefit cost, which has several components that mirror pension accounting:

1. Service cost — the present value of benefits attributed to employee service during the current period. This is the only component classified as an operating expense under ASC 715.
2. Interest cost — the increase in the APBO due to the passage of time (the "unwinding" of the discount rate applied to the obligation).
3. Expected return on plan assets — if the plan is funded, this offsets the cost. Note that the expected return is used here, not the actual return.
4. Amortization of prior service cost — when a plan is amended (benefits increased or decreased), the resulting cost or credit is deferred and amortized over the remaining service period of active employees.
5. Amortization of net actuarial gains and losses — differences between actual experience and assumptions, or changes in assumptions, are deferred in other comprehensive income and amortized into expense over time (typically using the corridor approach).

Required Disclosures

Employers must disclose in the financial statement notes:

• The funded status of the plan (APBO minus fair value of plan assets)
• The components of net periodic benefit cost for the period
• Expected future benefit payments for each of the next five years and in aggregate for the five years after that
• Key actuarial assumptions, including the healthcare cost trend rate and discount rate

Pensions vs. Other Postretirement Benefits

Key Differences

Both pensions and OPRBs are forms of deferred compensation, but several differences in their accounting treatment are worth knowing:

Similarities

The core structure of the cost calculation is the same for both:

• Service cost represents the present value of benefits earned during the current period
• Interest cost reflects the growth of the obligation over time
• Both require similar note disclosures: funded status, cost components, and projected future benefit payments

Journal Entries for Other Postretirement Benefits

Recording Net Periodic Benefit Cost

At the end of each period, the employer records the expense and updates the liability. For an unfunded plan where benefits are paid directly to retirees:

When benefits are actually paid to retirees during the period:

The Accrued Postretirement Benefit Liability equals the cumulative difference between the APBO and the fair value of any plan assets. It appears as a long-term liability on the balance sheet.

Recording Contributions to Plan Assets

If the employer funds the plan by contributing to a trust:

Contributions increase plan assets, which improves the funded status and reduces the net liability reported on the balance sheet.

Recording Gains and Losses in OCI

Actuarial gains and losses not immediately recognized in net periodic benefit cost are recorded in other comprehensive income (OCI). For example, if an actuarial loss arises:

When those deferred amounts are later amortized into expense:

This reclassification moves the deferred amount out of accumulated OCI and into net income over time, following the same corridor amortization approach used for pensions.