Transacting business in the cloud has quickly gained popularity worldwide as the new method of providing information technology (IT) resources. Instead of purchasing or downloading software, we can now use the Internet to access software and other fundamental computing resources located on remote computer networks operated by third parties. These transactions offer companies lower operating costs, increased scalability, and improved reliability, but also give rise to a host of international tax issues. Despite the rapid growth and prevalent use of cloud computing, U.S. taxation of international cloud computing transactions has yet to receive significant scholarly attention. This Article seeks to fill that void by analyzing the U.S. tax implications of operating in the cloud from both doctrinal and policy perspectives. Such an analysis shows that the technological advances associated with the cloud put pressure on traditional U.S. federal income tax principles, which creates uncertainty, compliance burdens, liability risks for businesses, and a potential loss of revenue for the government. Applying the current law to cloud computing transactions also results in tax consequences that run counter to sound tax policy and may result in double taxation or complete nontaxation of cloud income.

In light of these problems, federal attention is warranted to clarify how U.S. federal income tax principles apply to businesses operating in the cloud. Thus, this Article proposes that the U.S. Department of the Treasury (Treasury) issue guidance that clearly addresses the U.S. tax implications of international cloud computing services and suggests that, ultimately, the United States must collaborate with other countries to achieve international consensus on these issues. Together these changes will ensure that the United States appropriately taxes the cloud and does so in a manner that minimizes double taxation and promotes efficiency, equity, and administrative simplicity.