Yes. But do you mean the Home & Business version or the separate Business program that does 1041, 1065, 1120 Business return? You can't have 2 personal versions installed at the same time. Like Basic, Deluxe, Premier or Home & Business.
You can have a personal version and the Business program installed together.
If you mean 2 personal versions you don't need both of them. All the Desktop programs have the same forms. You just get more help and guidance in the higher versions. And the Desktop program can do unlimited returns and efile 5 for free.
