How will individual cost-sharing employers determine the portion of the cumulative net pension liability, pension expense, and pension-related deferrals that they should recognize in their own financial statements?
The individual cost-sharing employers portion of the cumulative plan-wide pension amounts will be determined by measuring the cost-sharing employer against all of the governments participating in the plan in total. The Statement encourages the proportion to be determined as follows:
Employer’s projected long-term contributions to the plan
divided by
Projected long-term contributions to the plan by all employers
and other entities on behalf of those employers
However, the calculation may be based on other factors that are relevant to how contributions to the plan are determined. For instance, if a plan assesses a flat amount per active employee covered by the plan, a cost-sharing employer’s percentage might be determined by dividing the employer’s number of covered employees by the number of covered employees for all participating employers.
However the percentage is determined, the cumulative net pension liability, pension expense, and pension-related deferrals would be multiplied by the percentage to arrive at the “proportionate shares”—the amounts that the cost-sharing employer will report in its own financial statements.
It is possible that a cost-sharing employer’s percentage may change from one year to the next. A cost-sharing employer will include in its pension expense the effect the changing percentage has on its proportionate shares of the cumulative net pension liability and pension-related deferrals. As with experience gains and losses, for example, the effect will be introduced into expense in increments over a period equal to the average remaining years of service of all members of the plan (both current employees and retirees).