"If I have a relatively simple K-1 from a trust can I still use Turbotax Deluxe"
No, not the online version of TurboTax Deluxe. In order to enter information from a K-1 (even a simple K-1) with an online version of TurboTax, you will need at least TurboTax Premier.
You can, however, enter information from a K-1 with any desktop (CD/Download) version of TurboTax.
