Simultaneous general elections have a lousy tendency by several people but do not see a large future impact on national development planning in 2025–2045. The purpose of this article is to present a new perspective on viewing simultaneous general elections by linking national development planning as a future impact on public welfare. This research is qualitative by using a statute approach in comparing laws and regulations that change in each period of simultaneous general elections and synchronising laws and regulations with national development planning. The conceptual approach is the basis for the author to conceptualise the synchronisation of simultaneous general elections to national development planning in the RPJPN 2025–2045. The research results from this article show three outlines: First, the impact of simultaneous general elections results in harmony in the implementation of national development planning. Second, synchronising simultaneous general elections to national development planning eliminates the disparities between regions that occur in Indonesia. Third, the synchronisation results, as discussed, will produce a gradual welfare state in 2025–2045.