ProSeries Basic is entry-level professional tax software designed for new and growing professionals who typically need a little more guidance. And it doesn't support business returns or as many federal forms, schedules, and reports found in the 1040 program of ProSeries Professional.
We recommend using ProSeries Professional if you do a high volume of returns, do business returns, or have more than one preparer in your office. The navigation and data entry in Professional is tailored more to professionals who are familiar with preparing returns and require high efficiency. In addition, it contains both individual and business forms, plus a variety of additional features (Client Checklist, Client Presentation, K-1 data import, etc.).