This study aims to examine the adequacy of raising the age ceiling for contributions to the National Pension (NP). Although the pensionable age for the NP has increased, the age ceiling for contributions remains fixed at 59. To be sure, there are several measures by means of which individuals can extend their participation beyond the mandatory age gap, such as “voluntarily & continuously contribution” and “additional payment.” However, they are only temporary measures and fail to fill the gap between the pensionable age and the age cap for contributions. In this regard, the main purpose is to examine whether the decisions made through the 1st NP reform in 1998, including the decision to mandatory age ceiling for contributions remain persuasive even now, 20 years later. The results of this study show that the number of older workers who can contribute to the NP beyond the contribution age is increasing every year and that there is a segment of old-age benefits recipients who can afford to pay contributions to the NP even after reaching 60.