CAS 412 Pension Cost — Reconciling GAAP Pension Expense to CAS Pension Cost
Computing the CAS 412 pension cost for government contract allocation — which differs significantly from GAAP ASC 715 pension expense, creating timing differences that affect contractor billing rates.
| Account Name | Type | Debit ($) | Credit ($) |
|---|---|---|---|
| Pension Cost — CAS 412 (Allocated to Government Contracts via G&A/OH) | Expense (+) | 85,000,000.00 | - |
| GAAP Pension Expense (ASC 715 — Different Amount) | Expense (+) | 62,000,000.00 | - |
| Pension Cost Adjustment (CAS vs. GAAP — Variance in Indirect Rate) | Reconciling Item | 23,000,000.00 | - |
💡 Accountant's Note
CAS 412 (Cost Accounting Standard 412 — Composition and Measurement of Pension Cost) determines how pension costs are computed for government contract cost allocation. CAS 412 pension cost differs fundamentally from GAAP ASC 715 pension expense: (1) CAS uses a 'segment' approach (by business unit, not the whole entity), (2) The actuarial cost method is restricted to specific actuarial cost methods (projected unit credit is common to both, but CAS has different parameters), (3) The CAS 412 actuarial value of assets smoothes asset gains/losses over 5 years (different from the GAAP expected return/corridor approach or MTM approach), (4) CAS requires assignable funding (the pension cost charged to contracts must equal or be less than what is actually funded to the pension trust). The reconciliation between CAS pension cost (for contract billing) and GAAP pension expense (for financial reporting) is a significant annual computation — differences can be hundreds of millions of dollars. The government contractor must pay CAS pension cost into the trust to bill it to contracts.
Practitioner & Systems Framework
💻 ERP Architecture
Large defense contractors (Lockheed Martin's pension liability exceeds $20B; Boeing's exceeds $30B) have dedicated actuarial teams computing both CAS 412 and GAAP pension costs annually. The CAS cost goes into the G&A or overhead pool — affecting the rates charged to ALL government contracts. The GAAP pension expense appears in the financial statements. The reconciliation is disclosed in the financial statements. CAS harmonization with GAAP (CAS Board has been working on convergence) is an ongoing regulatory development.
⚠️ Audit Flags
DCAA specifically audits CAS 412 compliance — the actuarial computations, the segment definitions, the smoothing of actuarial gains/losses, and the funding requirement. The most common finding: pension costs billed to contracts exceed the amount actually funded to the pension trust — creating a CAS violation requiring credit to the government. The difference between CAS cost and GAAP expense must be disclosed.
📄 Required Documentation
CAS 412 actuarial valuation (separate from GAAP valuation), segment definition (CAS uses 'segments' not consolidated entities), actuarial value of assets (5-year smoothing), CAS vs. GAAP pension cost reconciliation, pension contribution vs. CAS cost comparison, DCAA CAS 412 audit results, and disclosure of CAS/GAAP pension cost differences.
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