Tax transparency is often associated with standardized reporting. Among the goals of the 2030 agenda, goal 12.6 encourages organizations to adopt sustainable practices and integrate sustainability information into their reporting cycle. The Global Reporting Initiative (GRI) published the GRI 207- Tax (2019), aiming to increase transparency and accountability in corporate tax practices, by providing disclosure guidance for companies to disclose information about their tax strategy, governance, and risk management. As it is a recent standard, research on GRI-207 is still scarce. Thus, this chapter aims to contribute to the debate on the link between corporate reporting and fiscal responsibility by providing an overview on the background and structure of the GRI 207, which could serve as a basis for future research in the field of tax disclosure, as well as contributing to the policy debate. This chapter could have political and practical implications, as transparency in the disclosure of tax-related issues in corporate reporting could mitigate the reputational tax risk of companies.