Abstrak Perkembangan teknologi digital telah membawa perubahan signifikan pada masyarakat dalam mengakses dan menggunakan layanan keuangan. Kemudahan bertransaksi serta pengelolaan keuangan dapat dilakukan melalui perangkat digital yaitu financial technology (fintech). Di sisi lain, juga membawa tantangan tersendiri yaitu perilaku konsumtif khususnya kalangan remaja. Kegiatan service learning ini bertujuan untuk meningkatkan literasi keuangan melalui edukasi terkait perilaku konsumtif pada siswa SMA Mawar Sharon. Metode pelaksanaan berupa kegiatan penyuluhan dan diskusi interaktif yang melibatkan siswa secara aktif, dengan materi meliputi pemahaman dasar tentang fintech, jenis-jenis layanan keuangan digital (seperti e-wallet, paylater, dan investasi online), serta strategi dalam mengatur pengeluaran agar tidak terjadi pemborosan. Hasil kegiatan menunjukkan adanya peningkatan pemahaman siswa mengenai pentingnya pengelolaan keuangan pribadi dan potensi risiko dari penggunaan fintech yang tidak bijak. Edukasi ini diharapkan dapat membentuk kesadaran finansial sejak dini pada siswa SMA serta mendorong perilaku yang bijaksana dalam keuangan agar menjadi generasi muda yang cerdas dan berwawasan luas dalam pengambilan keputusan finansial di era digital. Kata kunci: financial technology; literasi keuangan; perilaku konsumtif; teknologi digital. Abstract The development of digital technology has brought significant changes in various aspects of life, including in the way people access and use financial services. Financial technology (fintech) offers convenience in transactions and financial management, but also brings its own challenges, especially in encouraging consumptive behavior, especially among teenagers who are still in the stage of forming character and financial mindset. This study aims to improve financial literacy and educate about controlling consumptive behavior through a direct educational approach to Mawar Sharon High School students. The implementation method is in the form of counseling activities and interactive discussions that actively involve students, with materials covering basic understanding of fintech, types of digital financial services (such as e-wallets, paylater, and online investments), and strategies in managing expenses and avoiding waste. The results of the activities showed an increase in students' understanding of the importance of personal financial management and the potential risks of using fintech unwisely. This education is expected to form financial awareness from an early age and encourage the creation of a young generation that is smart and responsible in making financial decisions in the digital era. Keywords: financial technology; financial literacy; consumptive behaviour; digital technology.
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