TurboTax is a tax preparation software designed to help individuals and businesses file their taxes efficiently. It provides step-by-step guidance to calculate taxes, maximize deductions, and file accurate returns. To install TurboTax, first, purchase the software from the installturbotax.com website or a retail store. Then, log in to your TurboTax account and download the setup file to your device. Once downloaded, double-click the file and follow the on-screen instructions to complete the installation. After installation, you can start preparing and filing your taxes seamlessly.