Between July 2003 and 2006, compulsory coverage was gradually expanded to corporations and workplaces with fewer than five full-time employees. The organization was renamed the "National Pension Service" in July 2007.

In May 2009, the Retirement Planning Service was introduced, alongside the launch of the NPS International Service Center. January 2011 saw the establishment of the NPS International Center, integrating the International Cooperation Department and the International Service Center. Concurrently, the collection of contributions