The license agreement is vague.

It says this: 

 

You can prepare and print or e-file up to 5 of your own federal and state tax returns with TurboTax Desktop.

 

Why would I have more than one of "my own" federal and state returns. 

 

More to the point, if I do the taxes for 3 people, no efile, one computer, but three individual returns, do I need to buy three copies of the software and can I do what I've always done?