The 2004 Turbotax Premier Home & Business Federal for Windows & Mac is a tax preparation software that offers users the ability to easily file their taxes for both personal and business purposes. This CD format software is designed for use on both Windows and Mac operating systems, making it convenient for users with different computer setups. The English language interface ensures that users can navigate and understand the software without any language barriers. With the trusted brand of Turbotax, users can rely on the accuracy and efficiency of this tax preparation software to help them file their taxes with confidence.