Can I install both TT Deluxe and TT Home and Business version on my iMac? When I try to install Home and Business it wants to overwrite the Deluxe version.

[rjs]

You cannot install two personal editions of TurboTax on the same computer. But Home & Business can do everything that Deluxe can do. There would be no benefit in having both.

[mesquitebean]

@ detweiler1  

An exception would be if they are for different tax years (allowed).  It will allow different editions for different tax years.  You didn't specify the tax years, but since it's trying to overwrite, we're assuming you meant 2 different editions of the same tax year (not allowed.) 

But if you are trying to upgrade, that would be an unusual way to achieve it, since an upgrade can be purchased and performed within the program itself.   As Champ rjs said, however, both products can prepare the same forms.    The difference is in the amount of help and guidance.

One possible other difference is that Deluxe comes in 2 versions--one that is Federal-only and a Deluxe version that is both Federal and State combo.   Home and Business only comes in the combo version with both Federal and State.