Similarities
ASC 715 Compensation — Retirement Benefits and ASC 712 Compensation — Nonretirement Post-Employment Benefits (formerly FAS 87, FAS 88, FAS 106, FAS 112, FAS 132 (Revised), FAS 158 and FSP FAS 132-R-1) and IAS 19 Employee Benefits are the principal sources of guidance for employee benefits other than share-based payments under US GAAP and IFRS, respectively.
Under both GAAPs, the periodic postretirement benefit cost under defined contribution plans is based on the contribution due from the employer in each period. The accounting for defined benefit plans has many similarities as well. The defined benefit obligation is the present value of benefits that have accrued to employees through services rendered to that date, based on actuarial methods of calculation. In addition, both US GAAP and IFRS provide for certain smoothing mechanisms in calculating the period pension cost.
Significant differences
Convergence
The FASB and the IASB have agreed to a long-term convergence project that will comprehensively challenge the accounting for postretirement benefits. This project is expected to address many of the common concerns with the current accounting model such as the smoothing and deferral mechanisms in the current model.
The IASB issued a discussion paper in March 2008. As a result of the comments received on the discussion paper, the IASB has divided the project into two parts. Part 1 of the project addresses the recognition and presentation of changes in the defined benefit obligation and in plan assets, disclosures, and other related issues.
Part 2 of the project addresses contribution-based promises, potentially as part of a comprehensive review of the accounting for pensions and other postretirement benefits.
The IASB plans to issue an Exposure Draft on Part 1 during the first quarter of 2010, and an interim standard that would improve pension and other postretirement benefit accounting by 2011.
The FASB currently is monitoring the work of the IASB to determine its next steps on the project.