This community service activity was carried out at St. Leopoldo Hall, Santa Maria Immaculate Church Tarakan, with the aim of increasing Sunday School children's understanding of the importance of saving from an early age. In an effort to increase understanding of the importance of saving habits from an early age, the methods used include storytelling, group discussions, and saving simulation games designed in an interactive and fun way. A total of 62 children participated with very high enthusiasm, showing great interest in the material presented. The results of this service activity show that children have a good understanding of the concept of saving money, although only some have practiced it in their daily lives. Through an interactive game using play money, all children chose the “saving” option, reflecting their awareness of the importance of saving. This activity is considered very effective in instilling financial literacy and forming good saving habits among children. Hopefully, this activity can be a positive first step in better financial management in the future for the younger generation.