The future demands a sustainable financial system with profound effects on the corporate environment and the financial sector's profitability. The COVID-19 pandemic disrupted financial markets worldwide, causing supply and demand reductions and economic instability. The resulting unprecedented lockdowns and post-pandemic effects necessitate financial engineering that risks financial system sustainability. This book examines the sustainability of government finances, the banking sector, and the broader financial system, linking them to economic profit. It explores alternatives for international financial market and monetary policy sustainability, including the long-term impact of digital currency on the stock market and its role in an alternative monetary system. Additionally, the book addresses issues such as forensic accounting, digital currency, and credit management affecting the global financial sector's ownership concentration. Key findings highlight the major sustainability challenges facing global financial markets, making this an essential read for students, practitioners, and policymakers.