Software as a service (SaaS) and cloud computing are fundamentally changing not only companies in the technology industry, but also how companies in all industries do business. Technological advances and the economic pressures of a down economy have fueled a dramatic increase in SaaS and cloud computing. But while companies are enjoying substantial cost savings, whether as users or providers, they may not understand the international tax exposures created by these new delivery models. They may not know how to identify related tax savings opportunities. And they may be hurting their bottom lines.