In the dynamic landscape of global finance, cross-border transactions have become increasingly prevalent, facilitating economic growth and international trade. However, accompanying this expansion are complex tax challenges that both multinational corporations and governments encounter. This abstract delves into the multifaceted issues arising from cross-border taxation and explores potential solutions to mitigate these challenges effectively. One of the primary concerns in cross-border taxation is the issue of base erosion and profit shifting (BEPS), where multinational enterprises exploit gaps and mismatches in tax rules to artificially shift profits to low-tax jurisdictions, thereby eroding the tax base of higher-tax jurisdictions. Such practices not only lead to revenue losses for governments but also create an uneven playing field for businesses. Furthermore, navigating the intricate web of international tax treaties and agreements poses significant hurdles for taxpayers and tax authorities alike. The lack of uniformity in tax regulations across jurisdictions often results in ambiguity and disputes regarding the allocation of taxing rights and the determination of taxable income. Addressing these challenges requires a comprehensive approach that incorporates both policy reforms and international cooperation. Implementing measures such as the OECD/G20 BEPS project, which aims to modernize international tax rules and combat tax avoidance strategies, is crucial. Additionally, enhancing transparency through initiatives like country-by-country reporting enables tax authorities to gain insights into the global operations of multinational corporations, thereby facilitating more effective enforcement of tax laws. Moreover, fostering collaboration among nations through information exchange agreements and multilateral frameworks enhances the effectiveness of tax enforcement efforts and reduces opportunities for tax evasion. Embracing digitalization and leveraging technology tools can also streamline tax compliance processes and enhance the efficiency of cross-border tax administration. The complexities of cross-border taxation in global finance necessitate proactive measures to address BEPS, enhance tax transparency, and promote international cooperation. By implementing comprehensive strategies that blend policy reforms with technological innovations, stakeholders can navigate the challenges posed by cross-border taxation while fostering a fair and conducive environment for sustainable economic growth.
 Keywords: Cross-Border, Tax, Environment, Sustainable, Economy, Review.