I do all the time in Illinois. 

Are there restrictions in other states, Im not sure. I dont see why a state would restrict that......

I don't think so but wanted to float it before I tried it.  Under normal circumstances when you efile, the fed and state go at the same time.  If the Fed gets rejected, then the state gets rejected because the Fed got rejected.  The only issue is that the child of the taxpayer did not check the box of being claimed as a dependent of a parent.  So now I have to paper file the Fed.  Was not sure if the state would reject an efile if it was a standalone filing without the fed being simultaneously filed.  Also not sure if the states have the same level of sophistication to flag the return for the same issue.  Just trying to limit the paper filing.

Thank you for your reply!

Some states are piggybacked on federal, and some are not.  For a list type "piggybacked states for efile" in ask ProSeries for help

you should be able to efile the state stand alone. at least in ohio it works that way

Even when they are piggyback, you can usually resubmit the state if the federal was rejected.

Try it and see what happens. Nothing ventured, nothing gained.

I just called Intuit for efing the state of PA only.  Rep stated the CA is the only state that can be filed w/o the federal efile

I submit that the Rep is wrong, as evidenced by the other posts.

What happens when you try PA?

Hi @Bob G 
PA is a part of the Piggyback/State only list. Check out this article and let us know if this helps: State e-file methods: standalone vs piggyback