How do iI download turbotax to a new computor?

[kiwijm1-gmail-co]

How do i find the retailer I purchased turbotax from?

[VolvoGirl]

You would have to check your bank account or credit card for the charge.  Didn't you buy it directly from Turbo Tax?  If you bought it from Trubo Tax try here,

Access your downloads here
https://shop.turbotax.intuit.com/commerce/account/secure/login.jsp?pagecontext=download

If you can't find your download, use this TurboTax account recovery website to get a list of user ID's for an email address. Run the tool against any email addresses you may have used
https://myturbotax.intuit.com/account-recovery