While the manufacturing sector is frequently scrutinized for its sustainability efforts, the banking industry is often overlooked despite its pivotal role in financing major global emission contributors. Although numerous studies have explored sustainable banking, there remains a notable gap in identifying and classifying sustainability indicators. Research specifically addressing standardized sustainability indicators for banking practices is currently limited. This study aims to systematically categorize sustainable banking indicators. A structured literature review approach was employed, utilizing the Scopus database to search for articles with keywords such as “sustainable banking,” “sustainable practices,” and “green banking.” Following rigorous inclusion and exclusion criteria, fifty-seven relevant papers were selected for review. The comprehensive analysis enabled the classification of sustainable banking practices into seven categories: emission reduction, resource management, sustainable product innovation, product stewardship, sustainable human resource management, community engagement, and human rights compliance. Furthermore, the orientation of the sustainable practices and their corresponding impact were discussed to generate deeper insights. The resulting categorization and metrics provide a valuable framework for policymakers and academic researchers to assess and benchmark sustainability within the banking sector.