There is a growing call globally for corporations to improve transparency in corporate reporting, along with the surge of enhancing disclosure of non-financial information. Companies are seen as agents for contributing to a better future, and hence could assist in achieving the sustainable development goals (SDGs) 2030, via transparent non-financial disclosure. This review paper is premised on the fact that laws on non-financial disclosure may be useful in enhancing the transparency of companies’ conducts. Hence, this systematic review aims to synthesize the literature from 2014 to 2021 on the patterns and trends relating to regulations on non-financial disclosure in corporate reporting by companies. A keyword search followed by filters provided by the Web of Science Core Collection and SCOPUS databases resulted in a total of 369 documents being found. A total of 62 articles were reviewed after manual filtering and exclusion. A thematic review of these 62 articles identified 20 initial codes, which were then grouped into eight clusters: Directive 2014/95/EU, disclosure approaches, fiduciary duties of directors, stakeholder engagement, the effectiveness of disclosure regulations, the impacts of rules, the role of different actors and corporate accountability. The paper finds that the patterns and trends in the review set the path for future research on laws of non-financial disclosure, as they serve as a guideline for researchers for future studies.