In order to purchase a CD/Download version of TurboTax, you will visit the following TurboTax link: https://turbotax.intuit.com/personal-taxes/cd-download/, and choose the version of TurboTax that you wish to purchase and click on the Buy Now button for that version. 

Once you have completed your purchase you can follow the instructions listed in the TurboTax FAQ below to download your purchased download:

https://ttlc.intuit.com/replies/3302070

Please see the following TurboTax FAQ for instructions on how to transfer your TurboTax Online return for 2016 into your TurboTax CD/Download version:

https://ttlc.intuit.com/replies/3302260