Premier and Premium are different. It is called Premier in the Desktop program and Premium in Online version. Online Premium replaced Premier and the Self Employed version.
If you buy the Desktop CD/Download program you can use Deluxe. It may recommend to upgrade to a higher version but it only a suggestion and optional. All the Desktop programs have the same forms. You just get more help and guidance in the higher versions.
If you use the Online version you may have to upgrade to Premium if it says to.
