E-filing separately?

My son is living with us. So he depends upon us even though he got some small pays fro a part time job.

We declare that he is our dependent. Now I created two files from the software, one is for us joint marriage and the other one is for my son.

 

In the last step, we have to pay $29.99 for the state. Does it also apply for my son?

So I need to pay 2 x $29.99 since they are separately e-filings?