As many as you want....you paid for the program. Also, I just learned the other day that for basic forms, you can do your taxes for free from turbotax .com. Also, I learned that if you have State Farm insurance...go to their website and you can also do your basic forms for free. I am told that you can download the programs. You don't have to do them online.
Other people asked questions on similar topics, check out the answers they received:
Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them