To download and install TurboTax on your computer, start by visiting the official website at www.installturbotax.com (https://install-turbo-tax.com/) for the latest version. Select the version that suits your needs, whether it's the basic or premium edition. Once the download is complete, open the file and follow the on-screen instructions to install the software. For users in Canada, you can also download TurboTax through turbotax.ca/download (https://install-turbo-tax.com/download/). Ensure your system meets the minimum requirements for installation. After installation, launch the program and activate it using the license code provided to begin filing your taxes with ease.