Master's Thesis from the year 2018 in the subject Political Science - Universal basic income, grade: 2,0, Johannes Gutenberg University Mainz, language: English, abstract: Imagine a society where basic needs are met, fostering innovation and individual freedom. This book dives into the complex world of Unconditional Basic Income (UBI) within the German context, dissecting four distinct, income tax-based proposals designed to revolutionize social policy. Going beyond theoretical musings, the study meticulously compares these proposals against the existing German income tax and social security system of 2013, offering a robust and data-driven analysis. Explore the intricacies of each UBI model, understanding their unique approaches to personal income tax, social security regulations, and overall impact on society. Each proposal is analyzed through the lens of its effect on different income levels, from low-income earners to high-income earners, providing a comprehensive view of the potential societal shift. Uncover the critical differences in their regulatory tax policies, political motivations, and underlying definitions of UBI, revealing the diverse philosophies driving these potential reforms. Delve into the heart of the debate with a rigorous examination of tax burden, income redistribution, and tax progressivity, using established measures like the Musgrave and Kakwani indices to quantify the distributional effects. This comparative policy analysis assesses the financing mechanisms of each UBI proposal, scrutinizing their feasibility and long-term sustainability within the German economic landscape. This book serves as a crucial resource for policymakers, academics, and citizens alike, offering a clear and concise framework for understanding the potential benefits and challenges of implementing UBI in Germany. By exploring these critical aspects, this research contributes to a more informed and constructive dialogue on the future of sustainable social policy and the potential for UBI to reshape the economic and social fabric of Germany, sparking a renewed vision for a more equitable and prosperous future through innovative social policy. The analysis utilizes key concepts such as negative income tax and explores various distributional effects to provide a holistic understanding of each proposal's potential impact on German society. This deep dive into the nuances of UBI implementation in Germany provides invaluable insights for anyone interested in the future of social welfare and economic justice.