Unfunded vested benefits

Under presumptive method, if a plan is fully funded because the value of plan assets never falls below liabilities, the plan would record a zero change in the value of unfunded vested benefits despite fluctuations in unfunded vested benefits.

Addresses the contribution periods used in calculating an employer’s allocable share of a multiemployer plan’s unfunded vested benefits for the last plan year ending before April 29, 1980.

Addresses whether the amount of a multiemployer plan’s unfunded vested benefits may be retroactively corrected when a computational error resulted in overassessment and overpayment of withdrawal liability.

Addresses (1) whether vested ancillary benefits may be included in the calculation of unfunded vested benefits; (2) the meaning of "nonforfeitable benefit"; (3) what actuarial assumptions may be used to calculate unfunded vested benefits.

Provides simplified methods for the application of the statutory requirement that multiemployer plans in critical status disregard certain benefit reductions in determining the plan's unfunded vested benefits for purposes of determining an employer's withdrawal liability under section 4201 of ERISA.