OPEB - Net Periodic Post-Retirement Benefit Cost (Retiree Medical & Dental)
Recording the net periodic post-retirement benefit cost (NPPBC) for retiree medical, dental, vision, and life insurance benefits under ASC 715-60, using the same six-component framework as pension accounting.
| Account Name | Type | Debit ($) | Credit ($) |
|---|---|---|---|
| OPEB Expense - Service Cost (Operating) | Expense (+) | 8,500,000.00 | - |
| OPEB Expense - Interest Cost (Non-Operating) | Expense (+) | 18,500,000.00 | - |
| OPEB Expense - Expected Return on OPEB Assets (If Prefunded) | Expense (-) | - | 4,200,000.00 |
| OPEB Expense - Amortization of Actuarial Loss (Non-Op.) | Expense (+) | 5,800,000.00 | - |
| OPEB Liability - Accumulated Post-Retirement Benefit Obligation | Liability (+) | - | 28,600,000.00 |
💡 Accountant's Note
OPEB (Other Post-Employment Benefits) accounting parallels DB pension accounting under ASC 715-60, with additional complexity from healthcare-specific factors. The Accumulated Post-Retirement Benefit Obligation (APBO, not PBO) measures the actuarial present value of benefits attributed to employee service to date. Key differences from pension: (1) Healthcare cost trend rate assumption (medical inflation — typically 6-8% declining to 5% over time) is the most volatile and material assumption, (2) Most OPEB plans are unfunded (no trust assets — paid as incurred), (3) Medicare coordination rules (Primary vs. Secondary payer) affect cost projections, and (4) Capped/cost-sharing plans may have dollar cap provisions.
Practitioner & Systems Framework
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OPEB accounting requires a separate actuarial valuation from the DB pension plan. Healthcare cost trend rates are far more uncertain than pension discount rates — small changes in the trend rate materially impact the APBO. For unfunded OPEB plans (cash pay), the expected return component is zero. Most large companies fund OPEB through a VEBA trust (ASC 715-60 permits pre-funding) or post-65 coverage may be provided through Medicare Advantage plans, reducing APBO significantly.
⚠️ Audit Flags
Healthcare cost trend rate is the most scrutinized OPEB assumption — a 1% change in the trend rate can shift the APBO by 5-10% for plans with significant medical coverage. Auditors test: (1) Trend rate vs. industry benchmarks and actual plan claims experience, (2) Medicare coordination (age-65 benefit reduction vs. Medicare primary coverage), (3) Per capita claims cost assumptions (actual vs. assumed cost per covered retiree), and (4) Participation rate assumptions (what % of eligible employees are expected to elect coverage).
📄 Required Documentation
OPEB actuarial valuation (APBO, NPPBC components), plan document specifying post-retirement coverage, participant census (retirees, active employees eligible for post-retirement benefits), healthcare cost trend rate documentation, Medicare coordination analysis, per capita claims cost data, VEBA trust balance (if funded).
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