There was an error in a previous reply. "And All the Desktop programs have the same forms." is not correct. There are different forms in each version. Basic I think does not figure itemized deductions, Deluxe no longer contains all the forms you need to report some investment income (it used to until about 3 years ago), Premiere can do all the investment forms but still cannot do what the Business version can. See the link below and check what forms come with each version at the bottom of the page.
https://turbotax.intuit.com/personal-taxes/compare/desktop/
