This study explores the disparities between Islamic Sharia and secular legal systems in matters of inheritance, particularly highlighting the challenges faced by Muslims living in non-Sharia jurisdictions. It examines how local laws often override Islamic principles, leading to estate distributions that conflict with Sharia and deprive rightful heirs of their shares. Structured into an introduction and three sections, the research analyzes Islamic and secular inheritance frameworks, identifies key obstacles in applying secular laws to Muslim cases, and proposes strategies for integrating Islamic inheritance practices in Western contexts. Among the most pressing issues are estate divisions based on man-made laws, confiscation of assets without heirs, and taxation before and after distribution. In response, Islamic organizations have emphasized the importance of drafting wills, clarifying inheritance arrangements, and designating rightful heirs to safeguard compliance with Sharia.