IFRS20-11 Accounting Research
(a) According to IAS 19, (pars 127–130) 127 Remeasurements of the net
defined benefit liability (asset) comprise: (a) actuarial gains and losses (see
128 Actuarial gains and losses result from increases or decreases in the
present value of the defined benefit obligation because of changes in
actuarial assumptions and experience adjustments. Causes of actuarial
gains and losses include, for example: (a) unexpectedly high or low rates
of employee turnover, early retirement or mortality or of increases in
salaries, benefits (if the formal or constructive terms of a plan provide for
inflationary benefit increases) or medical costs;
130 In determining the return on plan assets, an entity deducts the costs of
managing the plan assets and any tax payable by the plan itself, other than
tax included in the actuarial assumptions used to measure the defined
benefit obligation (paragraph 76). Other administration costs are not
deducted from the return on plan assets.