Risk asset booking and portfolio monitoring are critical pillars of modern banking, underpinning financial stability, profitability, and regulatory compliance. Global best practices emphasize a disciplined approach to booking risk assets, ensuring that credit, market, and operational risks are appropriately assessed, priced, and documented at the point of origination. Effective portfolio monitoring complements this by enabling banks to track exposures in real time, identify emerging vulnerabilities, and adjust strategies to maintain a resilient balance sheet. This paper reviews international standards, including Basel regulatory frameworks, IFRS reporting requirements, and advanced credit risk modeling, to highlight the mechanisms that ensure transparency, accountability, and sustainability in risk management practices. It examines the integration of stress testing, scenario analysis, and early warning systems, which provide critical foresight into potential portfolio deterioration under volatile economic conditions. Furthermore, it considers the role of technology, including artificial intelligence, data analytics, and digital dashboards, in automating monitoring processes and enhancing predictive accuracy. Building on 
these insights, the paper proposes a structured framework for sustainable banking risk management that balances profitability with prudential safeguards. The framework emphasizes three layers: robust risk asset booking policies that incorporate environmental, social, and governance (ESG) considerations; dynamic portfolio monitoring systems that align with both regulatory expectations and stakeholder trust; and adaptive governance mechanisms that foster continuous improvement. By embedding sustainability metrics and long-term value creation into risk management, banks can mitigate systemic shocks while supporting broader economic and social objectives. The framework also underscores the importance of cross-border harmonization of practices, ensuring that banks operating in diverse jurisdictions adhere to global standards while tailoring approaches to local contexts. Ultimately, adopting global best practices in risk asset booking and portfolio monitoring is not only a compliance requirement but a strategic imperative for sustainable banking. The proposed framework provides a roadmap for financial institutions to strengthen resilience, safeguard stakeholders, and contribute to a stable and inclusive financial system.