Sure---if you are trying to pay the state e-filing fee in desktop software you can pay using your own card even if the return is for your son. I have done that on several occasions for family members. But just so you know---you can avoid the state e-file fee by having him print, sign and mail the state return instead of e-filing it.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
